情态动词的被动语态

英语中情态动词的被动语法有几种？该如何用？~

四种。
一、基本句型结构： 
1、肯定句：主语+情态动词+be+过去分词
eg: Teenagers should be allowed to go shopping.       
Tables can be made of stones. 
2、否定句：主语+情态动词+not +be+ 过去分词
eg: Teenagers shouldn’t be allowed to go shopping.                
Tables can’t be made of stones.
3、一般疑问句：情态动词+主语+be+过去分词
eg:  Should teenagers be allowed to go shopping?                
Can tables be made of stones?
4、特殊疑问句：特殊疑问词+情态动词+主语+be+ 过去分词
eg: What should teenagers be allowed?                
What can tables be made of? 

扩展资料
含有情态动词的主动语态与被动语态的转换： 
1、 We （主语）can（情态动词） write（谓语） letters (宾语）in English.（宾语补足语）
Letters（主语）can （情态动词）be written（谓语）in English (宾语）by us. （宾语补足语）   
2、Parents（主语）should（情态动词）allow（谓语）teenagers (宾语）to choose their own clothes.   
Teenagers（主语）should（情态动词）be allowed （谓语）to choose their own clothes (宾语）by their parents. （宾语补足语）  
3、You（主语）must（情态动词）clean（谓语）your bedroom (宾语）every day.(时间状语）
Your bedroom（主语）must（情态动词）be cleaned （谓语）every day (时间状语）by you.(宾语）

情态动词被动语态的基本用法
含有情态动词的被动语态构成形式及其基本用法
情态动词的被动语态结构为：情态动词+be+过去分词; 其时态及句型的变化仅由情态动词完成,“be+过去分词”部分不变.
Tables can be made of stone.桌子可由石头制造.
Tables could be made of stone at that time.那时桌子可由石头制造.（一般过去时）
Can tables be made of stone?桌子能用石头制造吗?（疑问句）
含有情态动词的被动语态变为否定句时,应在情态动词后面加not；变为一般疑问句时,应将情态动词移到句首.
Waste paper should not be thrown here.废纸不应该扔在这里.
Should it be done by Li Ming?这件事应该是李明干吗?
含有情态动词的主动语态变为被动语态时,要把主动语态中的宾语变为被动语态中的主语；主动语态中的谓语动词变为“情态动词+助动词be+过去分词”；主动语态中的主语变为介词by 的宾语,放在句尾（如果不强调动作的执行者,by短语常可省略）.
Parents should allow fourteen-year-olds to choose their own clothes.父母应该允许十四岁的少年选择他们自己的服装.
E智网为你解答,

情态动词中，主语和谓语动词之间有关系：主动关系或被动关系。 当主语与谓语为被动 关系时，体现主语为动作的承受者时要用被动语态（the Passive Voice）。在被动结构为：主语+be 过去分词 +by+动作执行者。

常见的情态动词为：can (could), may (might), must, have to, shall (should）, will (would), dare (dared), need (needed), ought to等。此外，情态动词无人称和数的变化，所以不考虑主谓一致。但shall (should）, will (would), dare (dared), need (needed)体现了原形与过去式的关系。

扩展资料

含有情态动词的主动语态与被动语态的转换： 

1、 We （主语）can（情态动词） write（谓语） letters (宾语）in English.（宾语补足语）

Letters（主语）can （情态动词）be written（谓语）in English (宾语）by us. （宾语补足语）   

2、Parents（主语）should（情态动词）allow（谓语）teenagers (宾语）to choose their own clothes.    

Teenagers（主语）should（情态动词）be allowed （谓语）to choose their own clothes (宾语）by their parents. （宾语补足语）   

3、You（主语）must（情态动词）clean（谓语）your bedroom (宾语）every day.(时间状语）

Your bedroom（主语）must（情态动词）be cleaned （谓语）every day (时间状语）by you.(宾语）

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 free on Children's Day.

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。

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敷面膜的时间：敷面膜的时间一般为10~30分钟，根据面膜性质和皮肤的性质而定，最多不要超过30分钟，敷得太久会阻碍肌肤呼吸，导致肌肤缺氧，面膜停留的时间太长、面膜反而会吸收皮肤中的水分，而且在揭除时会有疼痛感。
敷面膜时的身心：
面膜敷好后，不宜说话或做其他事情，应该让肌肤在完全放松的情况下尽情吸收面膜的养分和水分。最好平躺在床上，面部肌肉自然舒缓，闭上养神。
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