《Language in use》Accidents PPT課件2
What were they doing when it began to rain?
They were playing computer games when it began to rain.
They were playing chess when it began to rain.
They were playing football when it began to rain.
While Jake was sleeping, what did his brother do?
He played basketball.
While Jake was sleeping, his brother was playing basketball.
... ... ....
過去進行時（2）
when和while的區(qū)別
(一) when，while都有“當……時候”的意思。when既可表示某一點時間，也可以表示某一段時間。
在when引導的時間狀語從句中，其謂語動詞可以是延續(xù)性的，也可以是非延續(xù)性的，可與主句中的謂語動詞同時發(fā)生，也可在其后發(fā)生。如：
I was just reading a book when she came into my room.
她走進我房間時，我正在看書。
Were you writing when the teacher came in?
老師進來的時候，你在寫信嗎？
When he was a child, he was always trying out new ideas.
他小時候就常常試驗一些新的設想。
(二) while只能表示某一段時間，不能表示某一點時間。在while引導的時間狀語從句中，其謂語動詞只能是延續(xù)性的，而且也只能與主句中的謂語動詞同時發(fā)生或存在。如：
While Jim was mending his bike, Lin Tao came to see him.
正當吉姆修自行車時，林濤來看他。
You can’t do your homework while you’re watching TV.
你不能一邊看電視一邊做家庭作業(yè)。
(三) when和while的區(qū)別還在于: while引導的時間狀語從句多用進行時態(tài)，而when引導的時間狀語從句多用一般時態(tài)。如：
While they were talking, the bell rang.
他們談話的時候，上課鈴響了。
I was doing my homework when my mother came back home yesterday evening.
昨天晚上媽媽回家的時候，我正在做家庭作。
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Practice
1. I ______ (watch) TV when she ______ (call).
2. When the phone _______ (ring), she ________ (write) a letter.
3. While we ________ (have) a picnic, it ________ (start) to rain.
4. While John _________ (sleep) last night, someone _______ (steal) his car.
5. While we _________ (wait) for the bus, a girl ________ (run) up to us.
6. I ________ (telephone) a friend when Bob _______ (come) in.
7. Jim ________ (jump) on the bus as it _______ (move) away.
8. We ________ (test) the new machine when the electricity _____ (go) off.
... ... ...
[中考鏈接]
( ) 1. My brother came back home while I _____ homework. (2010 四川省內江市)
A. am doing B. were doing C. was doing
( ) 2. I _______ the charity show on TV when the telephone rang. (2010 江蘇省宿遷市)
A. watch B. watched C. am watching D. was watching
( ) 3. It ______ heavily when I left the cinema. (2010·北京市)
A. rains B. will rain C. is raining D. was raining
( )4. When I came back yesterday evening, my brother ______ his homework. (2011湖南長沙)
A is doing B. has done C. was doing
... ... ...
Read the passage and check the true sentences.
1. A car almost hit Jack last week.
2. Jack was talking on his mobile phone when the car hit him.
3. Jack fell down a hole on his way to the park.
4. A friend took Jack to hospital.
5. Jack did not break his arm.
6. The writer wants Jack to be more careful.
... ... ...
Module task
Write a news report about an accident
Think about a recent accident you know. Write notes.
1.When and where did it happen?
2.Why did it happen?
3.How did it happen?
4.What happened after the accident?
Use your notes and write sentences for your news report about the accident.
1.A terrible accident happened at …
2.(Name) was …
3.He / She was not …
4.(The accident) happened because …
5.After the accident …
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