past simple (form) affirmative 1 / You / We / They / She / He / It stopped. negative 1 / You / We / They / She / He / It did not (didn't) stop. • questions Did 1 / you / we / they / she / he / it wait? When did Leonardo da Vinci live? What did Leonardo da Vinci paint? short answers Yes, 1/you/we/they /she / he / it did. No, 1 / you / we / they / she / he / it didn't. > spelling rules • Verbs ending in e, add -d: • For one-syllable verbs ending one vowel + one consonant, double the consonant and add -ed: • Other one-syllable verbs add -ed: • Verbs ending vowel + consonant +y, change -yto -/and add -ed: Note: verbs ending vowel + y add -ed: • Two-syllable verbs ending one vowel + one consonant, double the consonant if the stress is on the last syllable and add -ed: • If the stress is on the first syllable, add -ed: decide - decided stop - stopped wait - waited study - studied play - played prefer - preferred profit-profited irregular verbs (see List of irregular verbs page 206) Many verbs have irregular past simple forms eg drink - drank see -saw Use past simple • to talk about finished events in the past, when we think about a definite time. Alexander's army marched beside the river and then stopped outside the city. • to describe the events in a story. Oliver heard the sound of a bell. Soon afterwards, the door softly opened. • to describe habits and routines in the past. We usually use a time word or phrase. Leonardo painted in his studio every day Subject and object questions are both possible with past simple (see Unit 1). What did Leonardo paint? object question: + auxiliary did Who painted this portrait? subject question: no auxiliary did Examples of time words and phrases we use with past simple: yesterday last night last week last year on Tuesday at 6.30 an hour ago after that in 1754 in January 1 Complete the sentence with the past simple form of the verb in brackets. a Aztec civilization (develop)......dtMCiasp&d......in the Valley of Mexico, 7,500 feet above sea level. b The Aztecs (leave)............................................their own land of Aztlan at some time during the 12th or 13th century. c They (believe)............................................that Huitzilopochtli their war god (want)............................................ them to search for a new land. d They (arrive)............................................in the Valley of Mexico during the 12th or 13th century AD. e They (build)............................................their capital city, Tenochtitlan, on an island in Lake Texcoco. f They (plant)............................................trees on the island to make the land better, (work)............................................hard and (improve)............................................the land. g When the Spanish (arrive)............................................in 1519, Montezuma, the Aztec ruler, (think)............................................ that Cortez was a returning god. h When the Spanish (see)............................................the Aztecs' gold, they (decide)............................................to conquer the city. i Later they (kill)............................................Montezuma, (defeat)............................................the Aztecs and (destroy) Aztec religion and culture. 2 Complete the sentence with the past simple form of the verb in brackets. Then decide if each sentence is True or False. Check the factual answers on page 208. a Greek actors (wear)...............tiofX-..............masks and special boots. True, b Spartan children (take)............................................baths only two or three times a year. c The philosopher Socrates (drink)............................................poison and died. d Alexander the Great's army (go)............................................as far as China. e Heron of Alexandria (make)............................................a kind of jet engine. f The Roman Emperor Caligula's name (mean)............................................'Happy Soldier'. g Roman mathematics (have)............................................no zero. h Most Roman girls (get)............................................married at the age of 18. i Roman soldiers (pay)............................................for their own equipment and food. j The Romans (know)............................................how to make soap and cement. 3 Seven of the sentences (including the example) contain historical errors. Guess which ones are wrong and rewrite them with a negative past simple form. Check the factual answers on page 208. a Alexander the Great married Cleopatra. .........A'c-^a^dcr We, Gre-aj- cf/'cM'-f" tu^rr^ c\e.o?ah:a,........................................................................................................... ■ b Nelson Mandela became President of South Africa in 1994. c Leonardo da Vinci invented the Internet. d Confucius the Chinese philosopher died in 1900. e Marco Polo stayed in China for five years. f The ancient Romans used steam engines in their battles. ^ .......................................................................................................................................................................................................................................................................... "a. g Genghis Khan invaded Italy and captured Rome. £ 'to h Christopher Columbus reached America by accident. q. i William Shakespeare wrote Don Quixote. 4 Complete the question for each answer. The Industrial Revolution in Britain a When did Jrke \^duSjrria\ ^.e-VoluAicM happen, m 3ri-\rain....................................................................................... ? The Industrial Revolution happened during the second half of the 18th centuiy in Britain. " < How.................................................................................................................................................................................................................................................................? Work changed with the building of large factories. c What...............................................................................................................................................................................................................................................................? The first factories produced iron, steel, and textiles. d What...............................................................................................................................................................................................................................................................? New technology encouraged the production of more ships, and railway equipment. e What power..................................................„........................................................................................................'........................................................,.....................? Factories used steam power. f What...............................................................................................................................................................................................................................................................? These factories required lots of coal for the steam engines. g Where...........................................................................................................................................................................................................................................................? Manufacturers constructed their factories close to coal mines. i> Why...............................................................................................................................................................................................................................................................? They decided to do this because it was expensive to transport coal. i What.............................................................................................................................................................................................................................................................? Factories also needed limestone and iron ore, for the manufacture of steel. j Where.......................................,„.,..............................................................................................................................................................................................? Industry in the UK developed near the coal fields of South Wales, the Midlands, north-east England and central Scotland. o* in past continuous, used to do (form) affirmative I / She / He / It was You/We/They were reading. negative 1 / She / He / It was not {wasn't) looking. You/We/They were not (weren't) J questions and short answers Was 1/she/he/it waiting? Yes, 1 was. No, 1 wasn't. Were you / we/they watching? you were. you weren't. Where was he waiting? What were they wearing? (use) Use past continuous • for a continuing unfinished action in the past. When Sue arrived at 9.30 am, four people were waiting outside the office. continuing past action PAST completed past event - PRESENT were waiting arrived • for a continuing unfinished action interrupted by a sudden past action. While we were doing the maths test, the fire alarm went off. • for activities as background description. The rainforest was full of sounds. Birds were calling from the trees and thousands of insects were buzzing and humming. • for two continuing events happening at the same time. While Cortes was talking to the emperor, his army was taking over the palace. while, when • Use while with past continuous for the time the event was happening. • Use when with past simple for actions. • We can use other more descriptive time phrases instead of when. At the moment the earthquake struck, most people were going about their normal lives. habits in the past For describing habits and states in the past, it is more natural to use used to + verb than past continuous, especially when we make contrasts with the present. We do not mention the exact date. Used to is unchangeable, and has only a past tense form. Negative: didn't use to Question: Did you use to ? J Rainforests used to cover a third of the Earth, but now they are getting smaller. Once people didn't use to worry about this problem. What games did you use to play in the playground at school? Note: we also use past simple (+ frequency adverb) to describe habitual actions in the past. People once thought that the Sun travelled round the Earth. 1 Underline the correct form. a While he took I was taking a bath, Archimedes discovered I was discovering the principles of density and buoyancy. b When Edouard Benedictus, a French scientist, worked I was working in his laboratory, he dropped I was dropping a glass bottle which had some plastic inside - and invented / was inventing safety glass. c Columbus arrived I was arriving in America while he tried I was trying to reach the Far East, d Alexander Fleming discovered I was discovering penicillin by accident while he looked I was looking at some old experiments, e While Hiram Bingham climbed I was climbing in the mountains of Peru in 1911, he discovered I was discovering the lost city of Macchu Picchu. f While Isaac Newton sat I was sitting under an apple tree, an apple fell / was falling on his head, and he understood I was understanding gravity, g While Dr Harry Coover tried I was trying to invent a new kind of plastic, he made I was making a very soft substance which stuck I was sticking things together. It was Superglue. h While he observed I was observing the Moon through his telescope, Galileo realized I was realizing that it had mountains and craters. Macchu Picchu 2A Use the prompts to make a question. The answers are in Exercise 1. a Where / Edouard Benedictus / work when he invented safety glass? .....tiherc ita$. edouard3e,Ae-Aic^u?> tccrti^...... .....keJMM-trJ.Sa+eAM ..£-A ko j4.oA'& until early in the morning, and then go for long walks across London, b William Shakespeare..........................................................in some of his own plays. c The German philosopher Immanuel Kant........................................................exactly the same things at the same time every day, so that people..........................................................their watches by his actions. d The author Agatha Christie..........................................................her second husband with his archaeological excavations. e The novelist James Joyce..........................................................English in the Italian city of Trieste, and some people say that he..........................................................his students the wrong meanings of words as a joke. f The novelist Marcel Proust..........................................................in a special soundproof room. g The ancient Greek philosophers..........................................................their classes outside in the open air. h The Russian novelist Vladimir Nabokov..........................................................his free time studying and catching moths and butterflies. 5 Complete the sentence with used to + the verb in brackets in positive, negative or question form. a What things (be)..........W&eA. itobc...........different in the past? b For a start, all the continents (form)..........................................................one large land mass. c Obviously, there (be)..........................................................cities and buildings, and forest covered a third of the Earth. d The climate was different, and animals such as the hippopotamus and rhinoceros (exist) ..........................................................in northern Europe. e Many mountains in Europe (be)..........................................................active volcanoes. f Early people (live)..........................................................in complex societies, but in small groups in places where they could find food. g What (eat)..........................................................? They (eat)..........................................................whatever they could find. h Early people (stay)..........................................................in the same place, but (travel)..........................................................long distances, following the animals they needed for food. 6 Complete the text with the past simple or past continuous form of the verbs in brackets. The Vikings in America According to Viking records, around the year 1,000, while some Viking sailors a (look for) iCCXC \co[£iAa for. the coast of Greenland, they b (reach)..........................................................the eastern coast of America. While they c (live)..........................................................there, they d (try)..........................................................to trade with the local Native Americans, known by the Vikings as Skraelings, but in the end the Native Americans e (fight).......................................................... them and f (drive)..........................................................them out. After several attempts to return, the Vikings g (give up).......................................................... In 1968, while some archaeologists h (work)..........................................................in Newfoundland, they i (discover)..........................................................the remains of one of the Viking settlements, and j (prove)..........................................................that this story was true. Charles-Marie de la Condamine In 1735 Charles-Marie de la Condamine k (sail)..........................................................to South America. At that time, scientists I (argue)..........................................................about the shape of the Earth. The French Academy m (want) ..........................................................him to take measurements on the Equator, along with two other scientists. The work n (take)..........................................................them eight years and in the end, another scientific team o (find)..........................................................the answer they p (look for)......................................................... While de la Condamine q (travel) ..........................................................home along the River Amazon, he r (learn).........................................................many interesting things about the local people and their way of life. When he s (arrive).........................................................in Paris in 1745, The River Amazon he t (receive).........................................................a hero's welcome. EXTENSION ACTIVITY I Make a list of ten things you used to do, but don't do any I more, and say what you do now. 0 "Ö 01 l/l O c '■M c o u present perfect continuous (form) affirmative I / You / We / They have (Ve) been reading. She / He / It has ('s) s_._J negative 1 / You / We / They have not (haven't/Ve not) been working. She /He /It has not (hasn't / 's not) questions Have 1/ you /we /they been waiting? Has she / he / it What have you been doing? Where has she been staying? j short answers Yes, 1 / you / we / they have. No, 1 / you / we / they haven't. she / he / it has. she / he / it hasn't. GUD Use present perfect continuous • to talk about recent continuing activities. What have you been doing lately? I've been revising for my exams. • to explain how recent continuing activities have caused the present situation. My eyes ache. I've been reading all day. • to talk about recent continuing activities which will probably continue in the future. This diagram shows how the climate has been changing. • with how long questions. How long have you been studying French? (this is a continuing process, and isn't finished) • with time words lately, recently, all (day), every (morning), for, since. covering a period of time up to the present I PAST -► PRESENT I've been studying all morning. (It's still morning now and I haven't finished my work yet) present perfect simple or present perfect continuous? Present perfect simple I've written my project, (finished, but we don't know when) Present perfect continuous I've been writing my project, (continuing up to the present, and not finished) With verbs that describe continuing states eg work, live, there is little difference in meanii I've worked here for three years. I I've been working here for three years. Note that we do not say / am working here for three years. Complete the sentence using the verb in brackets in the present perfect continuous form. e Tom needs cheering up. He (have) a I'm sorry to keep you waiting. I hope you (not wait)......kaste&lkhe^MMkma......long. b There you are! We (look for) ..................................................................you all morning! c I feel really tired. I (study)............................................................. hard lately. d Anna has got a really good suntan. She (go) ..................................................................to the beach a lot. ..................................................................a lot of problems lately. f I haven't seen you for ages. What (you / do) ..................................................................? g I (work)..................................................................here for the past three years, and I really like it. h Sam and Chris (paint).................................................................. their room, and their clothes are covered in paint! Underline the correct form. A Scientists a have recently identified I have been identifying a new species of animal in the rainforest of Borneo.They b have been searching I searched for this creature for several years, after reports from local villagers, and say it is a type of lemur. B Archaeologists in Guatemala c have found I have been finding a Mayan wall painting which they think is more than 2,000 years old. Archaeologist William Saturno d explored I has been exploring the site since 2002. C Scientists using the Hubble Space Telescope think they e found I have found two new moons circling the planet Pluto. Astronomers f have been looking I looked closely at Pluto since 1978 when they g spotted I have spotted its first moon. The telescope h worked I has been working for fifteen years, and t has been producing I has produced more than 700,000 images of the universe. D Australian scientists j have been discovering I hove discovered a new coral reef over 60 km long in the Gulf of Carpentaria by using satellites to spot the reefs in deep water. Recently divers k have managed I have been managing to reach the reefs and take photographs. 3 Use the prompts and how long to make a question. a astronomers / look for Pluto's moons? .......Hr;«! Icit^ navf.a^jTongiy.rj^ be,e,A.............................. .....[gckiruq Jror .B^+o'sjuooks ? b archaeologists / hope to find Atlantis? e scientists / observe Vesuvius? f biologists / try to find new species of mammal? ................................................................................................................................................? ? c scientists / use satellites to discover new reefs? g archaeologists / excavate the palace in Guatemala? d physicists / investigate the origin of the universe? h doctors / search for a cure for HIV? c Need more practice? Go to the Review on page 192 O 13 c '+-> c o u +-> u CD 4-i_ CD CL +-> c CD 1/1 CD past perfect (form ) past perfect simple affirmative 1 / You / We / They / She / He / It had ('d) left, (past participle) J negative 1 / You / We / They / She / He / It had not (hadn't) left. J questions Had I / you / we/they / she / he / it left? What had they found? short answers Yes, I / you / we / they / she / he / it had. No, hadn't. Use past perfect simple to describe a past event which happens before another event in the past. Only use it when it is important to make clear that one event in the past happened before another. On 12 July 1771, Cook's ship The Endeavour arrived back in Britain. Cook had not discovered a new continent, but he had visited places never seen before. In this example, 'not discovered' happened before 'arrived'. past perfect event past simple event PAST ^ ^ PRESENT (a) Cook had not discovered... (b) the ship arrived back in Britain We do not use past perfect simple simply to show that an event happened a very long time ago. We can sometimes use before or after with past simple to make the order of events clear. By the time the ship reached the island, more then twenty sailors had died More than twenty sailors died before the ship reached the island. forgot, remembered, realized With forgot, remembered, realized, knew, we use past perfect simple to describe the past events that happened before the moment we forgot, remembered or realised something. When Franklin checked the ship's position, he realized he had made a mistake. (form ) past perfect continuous affirmative 1 / You / We / They / She / He / It had been waiting. J negative 1 / You / We / They / She / He / It had not (hadn't) been waiting. j questions What Had I/you / we/they / she / he / it been waiting? had_they_been doing? short answers Yes, I/you/we/they /she/ he / it had. No, _ hadn't. (use) Use past perfect continuous • in a past tense narrative, to describe a continuing action in a period of time before something else happened. Anna returned from France, where she had been studying French. • to explain a past situation, by describing the events happening before. Both boys were wet and muddy. They had been playing football in the rain. past perfect continuous past simple event PAST PRESENT (a) she had been studying French... (b) Anna returned from France See also Unit 16, Indirect (Reported) Statements. Read the following information about famous moments in history. Then underline the correct form. Only one verb in each paragraph is past perfect. A Columbus left Spain in August 1492 with three ships, to try and find a way to India by sailing west instead of east. When his ships a finally reached I had finally reached land on 12 October, he thought he was there, but the ships b actually arrived I had actually arrived in America instead. B Captain Robert Scott wanted to reach the South Pole first. He and his companions finally arrived there on 1 January 1912 after a terrible journey across the ice, but c found / had found a Norwegian flag. Unfortunately for Scott, Roald Amundsen d got I had got there on 14 December, 18 days earlier. C Leonardo painted his famous The Last Supper between 1495 and 1498, but the painting started to deteriorate within 50 years. The most common explanation for this used to be that Leonardo e used I had used the wrong kind of paint, but experts have always disagreed about this, and many believe that the damp in the wall is the cause of the damage. Between 1978 and 1999, experts f restored / had restored the painting, and the public can now see it again. Complete the sentence with the past simple or past perfect simple form of the verb in brackets. a When I (try).......krxtA...............................to use my laptop, I realized the battery (run).......................................................down. b I (turn).......................................................the computer off, but forgot that I (not save)......................................................my work. c I only remembered I (not pay).......................................................the bill when my Internet connection (stop) .......................................................working. d When I (receive).......................................................the e-mail, I couldn't understand who (send).......................................................it. e When I (check).......................................................the instructions, I understood what I (do)....................................................... f I knew I (receive).......................................................a virus when I (run).......................................................the anti-virus program. g As soon as I (download).......................................................the document, I knew I (make).......................................................a mistake. h I could see what (go).......................................................wrong as soon as I (look).......................................................inside the printer. i I knew I (press).......................................................the wrong key when nothing (happen)....................................................... j When the screen (go).......................................................blank, I couldn't understand how it (happen)................................................... u QJ CL 03 © Read these sentences about Julius Caesar. Then complete the sentence with the past simple or past perfect form of the verb in brackets. Julius Caesar (come)...........c-cme.................from an aristocratic Roman family, though his family was not rich by Roman standards. When he was 15 his father (die) ............................................, and to avoid political problems in Rome, Caesar (serve)............................................as a soldier in the east. By the time he (return)............................................to Rome, he (win)............................................awards for bravery. He (become)............................................a member of the Senate, and governor of what is now Spain. By the age of 40 he (rise)............................................to the top of the political world, and (form) ............................................a political alliance with a powerful general, Pompey, and a rich man, Crassus. Between 58 BC and 49 BC he (fight)...................................... a war against the people of what are now France, Belgium, Switzerland and parts of Germany. By the end of this war, according to the historian Plutarch, three million men (die)............................................ In 50 BC the Senate (order)............................................Caesar to return to Rome. By that time, Crassus was dead and Pompey (become)............................................Caesar's enemy. In the civil war that followed, Caesar (defeat) ............................................all his enemies. By the time a group of Roman senators (murder) ........................................him in 44 BC, he (be)........................................ the most powerful man in Rome for only a year. Choose the correct form, A, B or C, to complete the sentence. On 26 December 2004,Tilly Smith, a 10-year-old British schoolgirl, a......C.......on the beach with her family.They b.................Christmas in Thailand. Suddenly Tilly c.................that something was wrong. She could see that the water d.................and waves e.................up the beach.The beach f.................smaller and smaller. She g.................that there had been an earthquake in Sumatra that morning, but she h.................a geography lesson she i.................at school just two weeks before. So she j.................her mother what she k.................about earthquakes and giant waves. Luckily for the Smith family,Tilly's teacher Andrew Kearney I.................the class about earthquakes and m.................them a video of a tsunami in Hawaii.Tilly n.............................screaming at her parents to get off the beach.They o.................Tilly back to their hotel, which was not too close to the shore, and p.................the alarm. One of the staff, who was Japanese, q.................the word tsunami, and r.................everyone to leave the beach. From their room on the third floor, the Smiths s.................the terrible effects of the tsunami on the area.Thanks to Tilly, everybody from that beach t.................that terrible day. a A walked B had walked C was walking b A spent B had spent C were spending c A felt B had felt C was feeling d A rose B had risen C was rising e A came B had come C were coming f A got B had got C was getting g A did not know B had not known C was not knowing h A suddenly B had remembered C was suddenly remembered suddenly remembering i A had B had had C was having i A told B had told C was telling k A learnt B had learnt C was learning 1 A taught B had taught C was teaching m A showed B had shown C was showing q n A started B had started C was starting r o A took B had taken C were taking s P A raised B had raised C were raising t A understood A ordered A watched A survived B had understood B had ordered B had watched B had survived C was understanding C was ordering C were watching C was surviving 5 Read the story of Archimedes and his bath. Then complete the text with the correct form of the verb in brackets. Archimedes, the Greek mathematician, is probably most famous for the story of King Hieron II of Syracuse and the gold crown. The king a (want).......^(Kvdc^d.......to give a gold crown as a gift to the gods, and b (give).......................................a carefully weighed amount of gold to a goldsmith. The man c (produce)..........................................a beautiful crown, but the king was worried that the craftsman d (not use)..........................................all the gold to make the crown. Dishonest craftsmen often e (mix)..........................................gold with silver, which was cheaper, but the king could not find a way of proving that the man f (do)..........................................this. He g (ask)..........................................Archimedes to solve the problem. Archimedes h (know)..........................................that gold and silver have different densities. The problem was that nobody could calculate the mass of an object like a crown. While Archimedes i (think)..........................................about this problem, he decided to go to the public baths to relax. While he j (climb)..........................................into the bath, he k (notice)..........................................some water on the floor. It I (spill)..........................................over the side of the bath, and he m (realize)..........................................that he n (solve)..........................................the problem by accident. The total amount of water that o (spill)..........................................out of the bath must be the same as the volume of his body. He could use a piece of pure gold and calculate its volume, and then test the crown and see if it was the same. According to the story, he p (jump)..........................................straight out of the bath and q (run)..........................................down the street calling 'Eureka - I've found it.' The goldsmith soon r (admit)..........................................that he s (cheat).......................................... the king, and was punished. Archimedes t (discover)..........................................a principle of buoyancy. 6 Read the sentences about two mountain climbers. Then complete the sentence with the past perfect simple or past perfect continuous form of the verb in brackets. The two climbers stopped to rest. They (climb) ........Aad be.-CS... c',bvvMq.........for hours and were exhausted. Things were not looking good. They were very cold, because it (snow) ........................................................................heavily since mid-morning, and one of them (hurt) ........................................................................his ankle. They (look)........................................................................for shelter for the past two hours, because they realized that the weather was going to get worse. They (already phone)........................................................................the rescue centre for help. They (also leave)........................................................................details of their planned route at the village where they stayed the night. EXTENSION ACTIVITY f They were experienced climbers and they (prepare).......................................................................carefully for their trip. They knew there was a cave halfway up the mountain. g They spent a long time searching for the cave before they realized that they (head) ........................................................................ in the wrong direction. Then the snow stopped, and they could see the dark entrance of the cave nearby. h Luckily they (bring)........................................................................ warm clothes and plenty of food with them, and they waited safely in the cave. Read the sentences from Exercise 6 again. Make sure you have checked the answers to this exercise. Translate the story into your language. Need more practice? Go to the Review on page 192. J u to TO o u a; in C CD © Answer key Unit 1 Ex 1 a drive, cycles b rises, sets c travels d costs e meets f reads g understand h starts i give j like Ex 2 a don't do b doesn't play, doesn't like c don't think d don't work e doesn't agree f don't want g doesn't drive h aren't i don't stay j doesn't sing Ex 3 a leaves, isn't b loves, don't interest c don't study, is d don't dance, look e doesn't go, goes f does, doesn't crash g doesn't have, has h needs, doesn't burn i doesn't own, are j live, don't eat Ex 4 a live b provides c dive d hold e stand f keeps g breeds h lays i return j stands k keep I sleeps m eats n hatches o comes p finds q feed r spends s returns t look after Ex 5 a don't get on b doesn't love c doesn't know d doesn't allow e doesn't agree f doesn't forgive g don't understand h doesn't care i doesn't see j don't realize Ex 6 a Do, stop b does, contain c Do, have d does, cover e Does, grow f does, take g Do, pull h does, produce i do, breathe Ex 7 a does, do b prevents c doesn't allow d catch e push f destroy g Do, help h use i don't work j don't give k does, work I starts m doesn't get n come o destroy Unit 2 Ex 1 a are leaving b is rising, are using c is studying, is studying d are standing e are staying f am going g is chasing h is becoming i are training j is listening Ex 2 a do not understand b is it getting c don't agree d reaches e lasts f are still searching g Are they looking h doesn't seem i consists j has Ex 3 a am speaking b is visiting c am standing d looking e are climbing f are wearing g is standing by h is rising i are setting j are trying k is going on I is happening m is shaking n are climbing o are shouting Ex 4 a isn't going b isn't heading for c isn't sending d isn't working e aren't receiving f aren't pointing g aren't producing h isn't responding i aren't having j aren't giving up Ex 5 a Is the weather in your country changing? b Is it growing warmer or colder? c Are storms happening more often? d Is less snow falling in winter? e Is summer getting hotter? f Are the changes becoming a problem? g Are people worrying about this? h Are they doing anything to help? Ex 6 a means b doesn't stay c is growing e is falling f is happening g is rising i die j look after d believe h have Ex 7 a knows, are disappearing b cover, contain c remove, produce d are they vanishing e agree f is changing g are cutting down, causing h is happening i are burning, using j understand, are beginning Unit 3 Ex 1 a developed b left c believed, wanted d arrived e built f planted, worked, improved g arrived, thought h saw, decided i killed, defeated, destroyed Ex 2 a wore g had Ex 3 b took c drank d went h got i paid j knew e made f meant a Alexander the Great didn't marry Cleopatra, b Nelson Mandela didn't become President of South Africa in 1994. c Leonardo da Vinci didn't invent the Internet, d Confucius the Chinese philosopher died in 1900 BC. e Marco Polo didn't stay in China for five years, f The ancient Romans didn't use steam engines in their battles, g Genghis Khan didn't invade Italy and capture Rome, h Christopher Columbus didn't reach America by accident, i William Shakespeare didn't write Don Quixote. Ex 4 a When did the Industrial Revolution happen in Britain? b How did work change? c What did the first factories produce? d What did new technology encourage? e What power did factories use? f What did these factories require? g Where did manufacturers construct their factories? h Why did they decide to do this? i What did factories also need? j Where did industry in the UK develop? Ex 5 a Did he come from a rich family? b Did he grow up in London? c Did he go to school? d Did he know Latin? e Did he get married? f Did they have children? g Did he begin writing plays in Stratford? h Did he write 37 plays all by himself? i Did he make up all the characters and plots of his plays? j Did he become rich and famous? Ex 6 a studied b became c received d owned e made f had g did the alcohol turn to acid h happened i couldn't j threw k asked I didn't know m examined n found o believed p caused q Did milk, wine and vinegar behave in the same way r disagreed s made t continued u invented v proved w worked x developed Unit 4 Ex 1 a was taking, discovered b was working, dropped, invented c arrived, was trying d discovered, was looking e was climbing, discovered f was sitting , fell, understood g was trying, made, stuck h was observing, realized Ex 2A a Where was Edouard Benedictus working when he invented safety glass? b Where was Columbus trying to go when he reached America? c Where was Isaac Newton sitting according to the story about gravity? d What was Dr Harry Coover hoping to invent? e What was Galileo looking at through his telescope? Ex 3 a was growing up, became b was attending, murdered c was fighting, started destroyed d led, was staying, undid e was marching, defeated f founded, was visiting g was travelling, gave h killed, were having i was attacking, received, j was attending, fell, died Ex 4 a used to write b used to act c used to do, used to set d used to help e used to teach, used to tell f used to work g used to hold h used to spend Ex 5 a used to be b used to form c didn't use to be d used to exist e used to be f didn't use to live g did they use to eat, used to eat h didn't use to stay, used to travel Ex 6 a were looking for b reached c were living d tried e fought f drove g gave up h were working i discovered j proved k sailed I were arguing m wanted n took o found p were looking for q was travelling r learned s arrived t received Unit 5 Ex 1 a have sent b have put up c have collected d have planted e have replaced f have recycled g have shown h have painted i have installed j have organized Ex 2 a has always come b has fallen c have caused d have not / haven't done e have grown f have not / haven't reproduced g has reached h have reduced i have lost j has become, have stopped Ex 3 a Have you ever seen a humming bird? b Have you ever read War and Peace? c Have you ever visited San Marino? d Have you ever swum in the Pacific Ocean? e Have you ever taken a trip to the Sahara Desert? Ex 2B f wasn't trying g wasn't hoping h wasn't looking for i wasn't sitting j wasn't conducting Ex 4 a yet b since g already c yet d already h yet i already, yet e for, yet f since Ex 5 a have gone b have gone c have been d have gone e have not been f have been g has gone h has not been i have been j has gone Ex 6 a Have scientists discovered a cure for the common cold? b Have people lived for long periods in space (yet)? c Have human beings landed on Mars (yet)? d Have scientists invented time travel (yet)? e Have doctors managed to transplant human hearts (yet)? f Have archaeologists found the lost city of Atlantis (yet)? g Have scientists ever taught an animal to talk? Ex 7 a B b B c A kB IB m A d A n A e A o A fB gA pB hB iB jB Unit 6 Ex 1 a haven't been waiting b have been looking for c have been studying d has been going e has been having f have you been doing g have been working h have been painting Ex 2 a have recently identified b have been searching c have found d has been exploring e have found f have been looking g spotted h has been working i has produced j have discovered k have managed Ex 3 a How long have astronomers been looking for Pluto's moons? b How long have archaeologists been hoping to find Atlantis? c How long have scientists been using satellites to discover new reefs? d How long have physicists been investigating the origin of the universe? e How long have scientists been observing Vesuvius? f How long have biologists been trying to find new species of mammal? g How long have archaeologists been excavating the palace in Guatemala? h How long have doctors been searching for a cure for HIV? Unit 7 Ex 1 a finally reached b had actually arrived c found d had got e had used f restored Ex 2 a tried, had run b turned, had not saved c had not paid, stopped d received, had sent e checked, had done f had received, ran g downloaded, had made h had gone, looked i had pressed, happened j went, had happened Ex 3 a came b died, served c returned, had won d became e had risen, had formed f fought g had died h ordered, had become i defeated j murdered, had been Ex 4 aC bC kB IB c A m B dC n A eC o A f C PA gA qA h A r A i B s A JA t A Ex 5 a wanted e mixed b gave c produced f had done g asked d had not used h knew i was thinking j was climbing k noticed I had spilled m realized n had solved o had spilled p jumped q ran r admitted s had cheated t had discovered Ex 6 a had been climbing b had been snowing, had hurt c had been looking d had already phoned e had also left f had prepared g had been heading h had brought Unit 8 Ex 1 a stopped, had robbed b turned on, was climbing c arrived, had missed d tried, died e had made, had gone f had just finished, hadn't had g didn't answer, was painting h wasn't working, was i woke up, had been snowing j landed, had been waiting Ex 2 a left b completed c hasn't arrived e liked f did you go g hasn't taken i did you realise j've had d haven't played h Have you seen Ex 3 a gave up b had learned c were travelling d had composed e was visiting f listened g had kept h had published i managed j had listened k had become I had m wrote n was working o fell Ex 4 a A b B cC d A e I) f R g A h A i 1) jB Ex 5 a are you getting on b I haven't written c I've been training d played e came f enjoyed g I haven't done h arrived i went j was raining k arrived I was crossing m splashed n changed o is expecting p told q hasn't arrived r has discovered s died t bought u was working v recognized w painted x paid y say Unit 9 Ex 1 a will be, will continue, will claim b will cause, will probably destroy c will never want, will reach d will crash, will cause e will come, will have to Ex 2 a will hold b will take place c will provide d will carry e will sell f will cost g will use Ex 3 a 6 b 8 c 9 dlO e 2 f 7 g 1 h 4 i 5 j 3 Ex 4 Suggested answers: a I'm not going to waste paper, b I'm going to recycle paper and cardboard as much as I can. c I'm going to recycle bottles, cans and organic waste, d I'm not going to take plastic bags from the supermarket, e I'm not going to make unnecessary car journeys, f I'm going to walk or use a bike, g I'm going to buy local produce, h I'm going to take a shower not a bath, i I'm going to change to low-energy light bulbs, j I'm going to turn off unnecessary lights. Ex 5 a The volcano is going to erupt, b The water is going to disappear, c The river is going to flood the houses, d The ship is going to hit the iceberg, e It's going to snow (again), f The trees are going to blow down. / The wind is going to blow down the trees. Unit 10 Ex 1 a retires 7 b takes off 3 c continues 8 d starts 9 e takes place 4 f rises 10 g expires 6 h closes 2 i leaves 5 j open 1 Ex 2 a are holding b is coming c is giving d is showing e are serving f is arriving g Is, meeting h are picking, up, taking i is leaving Ex 3 a will break b is going to come out c is going to start d I won't drop it. e We're playing f I'll take g I'm going to study h I'll see you Ex 4 a I'll be lying b I'll be waiting c I'll be working d I'll be starting e I'll be going f I'll be watching g I'll be living h I'll be catching Ex 5 a will have started b will / won't have invented c will / won't have found d will / won't have discovered e will / won't have moved f will / won't have used g will / won't have become h will / won't have made Ex 6 a will continue b enters c will grow d finishes e occurs f will become g collide h will form i begins j will produce k will grow I increases m will be n stops o expands p will absorb q uses r will become s won't make t will be Ex 7 a A bC c. C dB eC fC gB HC i B jC Unit 11 Ex 1 a There b there c There d there e There f They g there h there i They j They k there I There m They n This o There Ex 6 Suggested answers: a I'm going to do biology, b I'll be back at two o'clock, c It isn't going to work, d Shall I turn the lights on? e I'll sit with Helen, f I'm going to study engineering. Ex 2 a is a match on Tuesday, b are three ways you can do this, c was a lot of snow yesterday, d isn't any milk, e seems to be a strange man outside, f were a lot of people at the rock concert, g were crowds of people on the train, h is an interesting television programme on at 8.00.