情态动词的被动语态写几个初中水平的例句,

http://baike.baidu.com/view/190314.html?wtp=tt
这里有很多，来看看吧

给你一个套初三英语语法专练(情态动词被动语态)题目和答案，自己用吧
1. We __________ for her because she never came.
A. needn’t wait B. shouldn’t have waited
C. mustn’t wait D. mustn’t have waited
2. Where is my pen? I __________ it.
A. might lose B. would have lost
C. should have lost D. must have lost
3. Janny __________ have kept her word. I wonder why she changed her
mind.
A. must B. should C. need D. would
4. We __________ last night, but we went to the concert instead.
A. must have studied B. might study
C. should have studied D. would study
5. I told Sally how to get here, but perhaps I __________ for her.
A. had to write it out B. must have written it out
C. should have written it out D. ought to write it out
6. It’s nearly seven o’clock. Jack__________ be here at any moment.
A. must B. need C. should D. can
7. —When can I come for the photos? I need them tomorrow afternoon.
—They __________ be ready by 12: 00.
A.can B.should C.might D. need
8. That young man had made so much noise that he __________ not
have been allowed to atted the concert.
A. could B. must C. would D. should
9．Be quick! They ________ for us at the church gate right now.
A. must wait B. must have waited
C. must be waiting D. ought to wait
10 When the teacher speaks, we have to keep quiet, ________?
A. haven't we B. don't we C. mustn't we D. oughtn't we
11．—— ________ I go there at once.
—— No, I don't think you ________.
A. Must; have to B. Do; need to C. Need; must D. May; ought to
12. He __________ you more help, even though he was very busy.
A. might have given B. might give C. may have given D. may give
13. Peter __________ come with us tonight, but he isn’t very sure yet.
A.must B.may C.can D. will
14. —There were already five people in the car but they managed to take me as well.
—It __________ a comfortable journey.
A. can’t be B. shouldn’t be
C. mustn’t have been D. couldn’t have been
15. Sorry, I’m late. I __________ have turned off the alarm clock
and gone back to sleep again.
A might B.should C.can D. will
16. Susan __________ written a report like this.
A. can have B. mustn’t have C. can’t have D. ought to not have
17. You __________ walk for miles and miles among the hills without
meeting people.
A. must B. may C. need D shoud

参考答案
情态动词
1. B 表示“本不应该做的事”。2. D 表示对过去发生的事，进行肯定的推测。
3. B 表示“本应该做某事”。4. C 同20题。5. C 同20题。
6. C at any moment 任何时候，目前，现在，对现在的推测。
7. B 应该做某事。8. D 同18题。
9.C 10.B 11A
12. A 从“was”可知，是对过去的事物做出推测，应用“情态动词+have+过去分词”。might比may的可能性较小。
13. B 从后半句“isn’t very sure yet”可知彼得来“虽有可能，但把握不大”，故may(可能)最合适。
14. D 从“there were”可知，是过去的事情。否定和疑问的推断用could。
15. A 这里表示对过去的推测，“might have done”正好表达此意。
16. C
17. B

被动语态：be + 动词的过去分词含情态动词的被动语态：can\ may\ must\ should + be + 动词的过去分词The flowers should be watered every day.Cars mustn't be parked here.Children can be taken to the cinema f...

要想知道情态动词的被动语态，首先需了解被动语态的构成。
一般现在时被动：be(am/is/are) done
一般过去时被动：be(was/were) done
进行时被动：be(am /is/are/was/were)being done
现在完成时被动：have/has been done
过去完成时被动：had been done
将来时被动： will/shall/would/should be done
那么含有情态动词的被动语态即是：can/could/may/might/should/will/shall/would/need等+be done 或 +be being done 或+ have been done .试一试自己造句子吧。