Exercises
41.1    Complete the sentences in these two texts with words from the opposite page.
Scientists disagree as to whether cold fusion, the controlled power of the hydrogen bomb in the
laboratory, is possible. In the past, some believed that e.......................s........................under
la....................c.........................using palladium and platinum electrodes could in fact cause heavy
■ hydrogen atoms to fuse into helium and release energy, as the sun does, in carefully controlled
; experiments, researchers believed they could ma........................the v...................arising from the
complexity of the electrodes and other equipment used. In such co.....................co.................,
they argued, cold fusion was possible. However, attempts to r..................... some of the
experiments which claimed to be successful failed, and many now believe that cold fusion is in ; fact theoretically impossible.
Some linguists believe that we can best d...................how language is processed by
laboratory experiments. However, laboratory experiments are by definition ar.........................
and may not r................................what happens in the real world. Other linguists believe, therefore,
that em...........................o......................................is better, and prefer to carry out!'....................................studies
and c........................studies of individuals in na........................... se.............................. In this way,
i.......................-d...........................data can be c............................by observers without i.................................
with the process in any way, even though this may be a more t................ - c............................
method. However, individual studies in real situations may not be r...............of the
general p......................... of second language learners. In short, both approaches have their
advantages and disadvantages.
4 1.2    Use the words in the box to complete the diagrams. Add a/an and anything else needed to complete the phrase.
check   methodology   pilot study  procedure   assemble   technique   experiment  device piece
carry out
employ/use
apparatus
4 1.3    Now complete the sentences using phrases from 41.2.
1 It was a new .................of apparatus so we ........... it first and then ..................... it
before using it.
2 The team carried out a.................................................. before conducting the main
to see if the......................... they were using was reliable.
3 The team needed to employ a different..........................for measuring the pressure, so they
used a new................ which they manufactured in their own laboratory.
41.4    Correct the eight spelling and other vocabulary mistakes in these sentences.
1 It was very difficult to make reliable interferences from the data as we had so little.
2 A correlational study is a good way of seeing if one phenomena is related to another in a system way.
3 The experiment neither proved nor deproved jessop's theory.
4 We had to explain the unusual scores of five of the subjets in the sample, who all had totals well below the norm. It was possible there were unaccuracies in the data.
5 An exterior observer can often unintentionally erupt the behaviour of the subjects they are observing.
Academic Vocabulary in Use  91