2. Choose the correct alternative (past simple or past continuous). Lucky accidents
Is it true that Sir Isaac Newton understood gravity because an apple (1) fell / was falling on his head when he (2) lay / was lying under a tree in his garden? Probably not. However, many great and small discoveries are the result of lucky accidents...
One day in 1879 chemist Constantin Fahlberg (3) didn’t wash / wasn’t washing his hands before dinner. While he (4) ate / was eating he (5) noticed / was noticing that the bread (6) tasted / was tasting sweet. The sweetness was saccharin.
Alexander Fleming (7) became / was becoming interested in the control of bacteria while he (8) worked / was working as a doctor during the First World War. In 1928 he (9) tidied / was tidying his laboratory when he (10) saw / was seeing that one of the dirty dishes (11) didn’t have / wasn’t having any bacteria on it, but that something else (12) grew / was growing there. It was penicillin.
In 1930 dietician Ruth Wakeield (13) prepared / was preparing some cookies for guests when she (14) realised / was realising that she had no chocolate powder. She (15) decided / was deciding to use small pieces of ordinary chocolate instead. The chocolate pieces (16) didn’t melt / wasn’t melting, and the first chocolate chip cookies were a great success.
Dr Percy Spencer was a physicist in the 1940s who probably enjoyed chocolate chip cookies. He (17) walked / was walking past some equipment in the laboratory when he (18) felt / was feeling something strange in his pocket. It was his chocolate bar and it (19) melted / was melting. This accident (20) led / was leading to the invention of a new piece of cooking equipment – the microwave oven.
Там требовалось задать общий вопрос, поэтому я на всякий случай напишу и общий (сначала), и специальный (два вопроса):
1. Are boys at school? Where are boys? Who is at school?
2. Is this girl at college? Where is this girl? Who is at college?
3. Is manager at the office? Where is the manager? Who is at office?
4. Are these lawyers at work? Where are these lawyers? Who is at work?
5. Are children at the lesson? Where are the children? Who is at the lesson?
6. Are these journalists at the theatre? Where are these journalists? Who is at the theatre?
7. Are those doctors at the cinema? Where are those doctors? Who is at the cinema?
8. Is the boy in the street? Where is the boy? Who is in the treet?
9. Is the girl in the country? Where is the girl? Who is in the country?
10. Is man in the room? Where is the man? Who is in the room?
11. Is the baby in the bed? Where is the baby? Who is in the bed?
12. Are the brothers in the park? Where are the brothers? Who is in the park?
1. this story was discussed at the literature lesson
2. he was brought up by his sister
3. don't worry he'll be helped with his work
4. this article was written by one english journalist
5. the article should be translated by 5 o'clock
6. when i'll come back(return) home all my suitcase will have been packed
7. all those books are taken from the library
8. i thought that bread and butter would be bought by my sister
9. many houses'll are built in Saint-Petersburg
10. Robert Burns's poetry are known in many countries
11. when Charles Diсkens was little boy his father was put into a debtors' prison
12. our house is being repaired now
13. this cinema was built before we came here
14. who was this letter written by?
15. these flowers have just been picked
Объяснение: