《Language in use》Accidents PPT课件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.

... ... ....

过去进行时（2）

when和while的区别 

(一) when，while都有“当……时候”的意思。when既可表示某一点时间，也可以表示某一段时间。

在when引导的时间状语从句中，其谓语动词可以是延续性的，也可以是非延续性的，可与主句中的谓语动词同时发生，也可在其后发生。如：

I was just reading a book when she came into my room. 

她走进我房间时，我正在看书。 

Were you writing when the teacher came in? 

老师进来的时候，你在写信吗？ 

When he was a child, he was always trying out new ideas. 

他小时候就常常试验一些新的设想。 

(二) while只能表示某一段时间，不能表示某一点时间。在while引导的时间状语从句中，其谓语动词只能是延续性的，而且也只能与主句中的谓语动词同时发生或存在。如： 

While Jim was mending his bike, Lin Tao came to see him. 

正当吉姆修自行车时，林涛来看他。      

You can’t do your homework while you’re watching TV. 

你不能一边看电视一边做家庭作业。 

(三) when和while的区别还在于: while引导的时间状语从句多用进行时态，而when引导的时间状语从句多用一般时态。如：

While they were talking, the bell rang. 

他们谈话的时候，上课铃响了。 

I was doing my homework when my mother came back home yesterday evening.

昨天晚上妈妈回家的时候，我正在做家庭作。

... ... ...

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.

... ... ...

[中考链接]

(     ) 1. My brother came back home while I _____ homework. (2010 四川省内江市)

A. am doing    B. were doing     C. was doing

(      ) 2. I _______ the charity show on TV when the telephone rang. (2010 江苏省宿迁市) 

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湖南长沙)

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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