Louis Pasteur 1822-1895

As a young man, Pasteur 1) studied at the Ecole Normale in Paris. Then at the age of just 32, he 2) (become)………………… a professor at the University of Lille. In 1856, Pasteur 3) (receive)……………..a visit from a man called Bigo who 4) (own)

…………………..a factory that 5) (make)…………… alcohol from sugar beet. He 6) (have)……………… a question for Pasteur: why 7) (the alcohol / turn / to acid?)……………….? When this 8)(happen) ……………., they 9) (not can)………. use it and 10) (throw)………….it away. Bigo11) (ask)…………. Pasteur to find out the reason for this.

At first, Pasteur 12)(not know) ……….. ……, but when he 13) (examine)………….

the alcohol under a microscope, he 14) (find)…………………thousands of tiny micro-organisms. He 15) (believe)……………… that they16) (cause) …………… the problem. 17) (milk, wine and vinegar / behave /in the same way?).. ...............................................................

Other scientists 18) (disagree)………………….. with him, and newspapers 19) (make)………….. fun of him. However, Pasteur 20) (continue)………………………

with his work, he 21 (invent) ………………….. methods of testing his theory and 22) (prove) …………..that he was right. Later he 23)(work) ………………..together with two doctors and 24) (develop)…………….. vaccines for diseases such as anthrax and rabies.

6. Complete the sentences with the correct auxiliary (was/wasn’t or were/weren’t)

1) I …………… living in the USA for most of the 1990s.

2) As John and Jo ………………. coming in, Pete gave them the bad news.

3) The sun ……….. shining all the time we …………. revising together outside.

4) We (not)………….. working on Friday, it was a public holiday.

5) ………… you driving by the river when you saw the red cat?

6) The elephant (not) …………….. eating when I ……….. feeding the other animals.

7) The whole class…………. revising for the exam all through June.

7. Underline the сorreсt word or phrase in eaсh sentence.

1) Whilе I wаshed/was washing my hair, thе phonе rang/ringed.

2) How did you felt/did уou feel yеstеrday aftеrnoon?

3) Whеn I got/wаs getting homе I reсeived/wаs reсeiving a phonе сall.

4) Last summеr I wаs going swimming/went swimming evеry wееkеnd.

5) Whеn thе dog bit/wаs biting Laura’s lеg, shе sсreаmed/wаs sсreаming.

6) Wе sаng/sung somе songs and thеn аte/eаt somе sandwiсhes.

7) Whеn уou fell/felt ovеr thе сliff, what hаppened/wаs happening nехt?

8) Whilе Мarу wаshed-up/wаs wаshing-up, she broke/wаs breаking a сup.

9) While he took / was taking a bath, Archimedes discovered / was discovering the principles of density and buoyancy.

10) When Edouard Benedictus, a French scientist, worked / was working in his laboratory, he dropped / was dropping a glass bottle which had some plastic inside - and invented / was inventing safety glass.

11) Columbus arrived / was arriving in America while he tried / was trying to reach the Far East.

12) Alexander Fleming discovered / was discovering penicillin by accident while he looked / was looking at some old experiments.

13) While Hiram Bingham climbed / was climbing in the mountains of Peru in 1911, he discovered/ was discovering the lost city of Macchu Picchu.

14) While Isaac Newton sat / was sitting under an apple tree, an apple fell / was falling on his head, and he understood / was understanding gravity.

15) While Dr Harry Coover tried/ was trying to invent a new kind of plastic, he made

/ was making a very soft substance which stuck / was sticking things together. It was

Super glue.

16) While he observed / was observing the Moon throughhis telescope, Galileo realized/ was realizing that it had mountains and craters.

17) I didn't sеe/sаw whеrе thе bus stop was, so I wаs missing/missed thе bus.

18) What did уou do / werе уou doing whеn I phonеd/wаs phoning you last night?

Thеrе was no rеply.

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