1. 一些要求用“過去式或過去完成式”來表示虛擬的固定句式. 過去式表示與現在事實相反;過去完成式表示與過去事實相反.它們有：

(1)wish + 從句

(2)主 + would rather + sb + V .

(3)It’s ( high ) time that …(只用過去時)

(4)If only +從句

2.用(should )+(原形)來表示虛擬的情況

虛擬語氣在動詞suggest, desire, require, command, propose, order, insist, request, 等表示“請求,建議,命令,要求”后面的賓語從句中用“should +動詞原形”, should可以省略。

Note: suggest表示“表明”時不用虛擬語氣.

All the evidence suggested that he stole the money.

3. 表示祝愿

1) wish + adj./n.

2) may+動詞原形, 此時may只能放于句首.

Note: I wish that…不是表示祝愿, 但動詞原形可表示祝愿.

Exercises:

1.The teacher demanded that the exam ___________ before eleven.

A. must finish B. would be finished C. be finished D. must be finished

2.She made the suggestion that I __________ my homework first before watching TV.

A. did B. do C. shall do D. have done

3.If only I ________ as young as you are!

A. being B. am C. be D. were

4.The secretary suggested that they ____ the men in at once.

A. had brought B. should have brought C. brought D. bring

5.I wish I ____ able to tell him all about it last night.

A. was B. were C. had been D. should be

6.The Jade Emperor ordered that the Monkey King _____ right away.

A. would be arrested B. must be arrested C. be arrested D. had to be arrested

7.Mr. Brown would rather that his son _________ in the royal(皇家的)air force last year.

A. served B. had served C. could serve D. has served

8.Jane’s uncle insisted ____ in this hotel any longer.

A. not staying B. not to stay C. that he not stay D. staying not

9.─Oh! It’s ten o’clock.

─It’s time you ________ to bed, little Frank.

A. to B. will C. went D. gone

10.How I wish I ____ to repair the watch! I only made it worse.

A. had tried B. hadn’t tried C. have tried D. didn’t try

11. He demanded that the laboratory report ___ immediately after the experiment was done.

A. was written B. be written C. must be written D. would be written

12. It’s high time that we ___ to school.

A. would to B. went C. go D. will go

13. I’d rather you ___ right away.

A. leave B. left C. will leave D. to leave

14. He insisted that he ___ me before.

A. see B. should see C. had seen D. saw

15. He wishes ___ mistakes.

A. he doesn’t always make B. he isn’t always making

C. he didn’t always make D. he wouldn’t always make

16. I wish I ___ what to do.

A. knew B. have known C. know D. would know

17. It is high time we ___ off.

A. are B. were C. be D. will be

18. Jane’s pale face suggested that she ______ ill, and her parents suggested that she ______ a medical examination.

A. be, should have B. was, have C. should be, had D. was, has

19. James wishes he ___ the football game instead of the film.

A. saw B. see C. had been seen D. had seen

20. The doctor suggested that she ___.

A. will not smoke B. not smoke C. would not smoke D. did not smoke

key：

CBDDC/CBCCB/BBBAC/ABBDB