7. She was busy, ________ she couldn’t go to your birthday party last night.

A. and　　　　 B. so　　　　 C. or　　　　　 D. but

6. Would you give Johnny this letter if you ________ to see him this week.

A. will happen　　　　　　　 B. happen

C. are happened　　　　　　　 D. happened

5. ________ I read, the more I understand.

A. The more　　　　　　　　 B. So much

C. How much　　　　　　　　 D. For all

4. I don’t know if he ________ tomorrow, if he _________ ,I’ll meet him.

A. will come, comes　 　　　　B. comes, comes

C. will come, will come　　　　 D. come, will come　

3. You may leave the classroom when you ________ writing.

A. will finish　　　　　　　　 B. are finishing

C. have finished　　　　　　　 D. had finished

2. I was listening to the music ________ there was a knock at the door.

A. while　　　　　　　　　　 B. when

C. because　　　　　　　　　 D. until

(1)　　　 当整句句子处于过去时的情况下，主句用过去完成时，从句用一般过去时。

(2)　　　 当整句句子处于将来时的情况下，总是主句用一般将来时，从句用一般现在时。

(3)　　　 由when引导的时间状语从句，句子处于将来时的情况下，与所有的时间状语从句一样，主句用一般将来时，从句用一般现在时。 例如：I am going to be a doctor when I grow up

(4)　　　 整句句子处于将来时的情况下，且两个动作同时进行，则持续的那个动作用过去进行时，瞬间的那个动作用一般过去时。 例如：I met my English teacher when I was walking in the street.

(5)　　　 像He turned on TV set at once when he got home，整句句子处于过去时的情况下，且两个动作先后发生，when=after，则时态与after一致，主句从句都用一般过去时。

(6)　　　 像The class had already begun when I entered the classroom.整句句子处于过去时的情况下，且两个动作先后发生，但这里的when=before，则时态与before一致，主句用过去完成时，从句用一般过去时。

第三节 巩固练习

Ⅰ.选择填空：

1. The man can’t get on the bus because there ________ no room on it.

A. was　　　　　　　　　　　 B. is

C. are　　　　　　　　　　　 D. were

4.　 I ______(use)to be a teacher but now ______(be) a manager.

5　　　　 While I ______(run)along. A dog suddenly ______(run) across the road.

6　　　　 　Last night my father _____(read) a book while my mother ______(sew).

7　　　　 What _____you _____ (do) the whole Sunday? I ______(go)over my lessons.

8　　　　 When I _____ (get)home, the telephone bell _____(ring)

9　　　　 It was Sunday and we _________ (sit) at the table when father suddenly _________(smile)

And ___________(say) to us, “ Oh, dear me, I forgot __________(tell) you the good news. There is a letter from Granny. She ___________(come) to see us this afternoon. I ________(meet)

Her at the station, “ with these words he went out.

How happy we _________(be)! We ___________(not see ) Granny for half a year and ____________(miss) her very much. After lunch my mother and I ___________(go) shopping. We ___________(buy) a lot of food that Granny liked. My sister __________(clean) the house. It

___________(be) four o’clock when we ____________(finish) and we ___________(sit) around

the table, ____________(wait) for Granny. At last the door __________(open) and in came my father, alone. “Where _________(be) Granny? “ We ___________(ask). Father _________(laugh)

and ___________(say), “ April Fools !” “ Today ___________(be) April　 1^st. April Fool’s Day.”

2.　　　 –She was reading newspapers.　

--What __you ___(do) ?

3　 Lao Wang told the policeman that he _____(listen) to the radio at that time.