Grammar Point – Revision

Tenses – Use your own ideas to complete the sentences.

1 A: How did the accident happen? B: I ___________________ too fast and couldn’t stop in time.

2 A: Is that a new microscope? B: No, we _________________________ it a long time.

3 A: Is that a new computer? B: Yes, I ______________________ a few weeks ago.

4 A: This is a nice restaurant. Do you come here often? B: No, it’s the first time
___________________ here.

5 A: I can’t talk to you right now. You can see I’m very busy. B: OK. I ___________________ back in
20 minutes.

6 A: Where’s Jane? B: She __________________________ a MEIA test right now.

7 A: How ________________ (you/do) the Gram staining? B: First, you ________________ the smear.

8 A: _____ you _______ (work) in this hospital? B: Yes, I ____________________________ since 2005.

9 A: When I arrived at the lab yesterday, my colleagues ____________________ (already/start) work.


Clauses (if and temporal)

1 Before you ____________ the lab, can you switch off all electrical appliances?

2 I ______________ (do) the Gram stain as soon as she _________________ (give) me the counterstain.

3 You’ll cut yourself! If you __________ (not/follow) the rules, you ____________________ (get
injured).

4 If you _______________ (pass) the written test, you ____________________ (be able) to sit the
oral exam.

5 She ____________________ (take off) her goggles after she __________________ (finish) the test.

6 He suffered a serious injury yesterday. If he __________________ (use) the chemical hood
properly, he _________________________ (not/burn) his face.

7 What ______ you __________ (do), when you ______________ (see) a fire in the lab?


Articles

1 When __ unemployment is high, it’s difficult for __ people to find __ work. It’s __ big problem.

2 There was __ accident in __ lab yesterday. Joe tripped over __ cable, fell down and broke __
microscope.

3 In __ microbiology, __ researchers come with __ new discoveries every ___ week.

4 __ human immune system is __ very complicated structure. For example, for __ B-cells to work,
they have to…

5 __ job of __ lab technicians is dangerous – that’s why they have to wear __ protective clothing,
such as __ glasses.


Plural

Bacillus _________Genus ____________Erratum _____________Codex
______________Diagnosis______________

Criterion ______________


Relative Clauses

1 He works in a laboratory. I forgot its name. – He works in a laboratory __________ name I forgot.

2 The microscope has many functions. You’re using the microscope. – The microscope
_______________________________ has many functions.

3 The electrode is mounted in a plastic jacket ___________ is filled with a bicarbonate
electrolyte.

4 That man is a famous microbiologist. He’s got sacked. – That man, _____________ a famous
microbiologist, has got sacked.

5 I work in a hospital. The hospital is very old. – The hospital _______________________________ is
very old.


Much/many/few/little

1 She isn’t very popular. She has _____________ friends.

2 John is very busy these days. He has ______________ free time.

3 I didn’t take ____________ photographs when I was on holiday.

4 The weather has been very dry recently. We’ve had ____________ rain.

5 There wasn’t ______________ traffic, so the journey didn’t take very long.