2022年初中情态动词用法总结-练习含答案

1、。专项：情态动词一 考点 ： 情态动词的用法和辨析，情态动词表示推测和可能，由情态动词引导的一般疑问句的回答。二 类型 ：1 只是情态动词：can, could, may, might, must 2 可做情态动词，可做实义动词：need, dare 3 可做情态动词，可做助动词： will, would, shall, should 4 特殊： have to, ought to, used to 三 特征 ：1 有一定的词义，但不能单独作谓语，必须与行为动词和系动词连用构成谓语。 2 无人称和数的变化。 （ have to 除外） Eg: He has to stay here. 3 后接

2、动词原形。 4 具有助动词作用，可构成否定，疑问或简短回答。四 用法 ：1. can 表示能力， “能，会 ”。Eg : Can you play basketball? 表示怀疑，猜测，常用于否定句或疑问句。 Eg :Li hua can t be in the classroom. 表示请求，允许，多用于口语，译“ 可以 ”= may. Eg: you can go now. can 开头的疑问句，肯定句，否定句用 can 或 can t. 2.could can 的过去式，表示过去的能力。 Eg :I could swim when I was seven years old. coul

3、d 开头的疑问句， 肯定和否定回答用could, couldn t 如果 could 表示现在的委婉，用 can 回答。 Eg: Could I have a drink? Yes, you can. 3.may 表示推测， “可能，也许 ” ，用于肯定句。 Eg: He may come tomorrow. 表示请求， “许可 , 可以 ” 。Eg: May I borrow your book? 注：表示请求，许可时，主语为第一人称的一般疑问句，否定回答用mustn t “不可以，禁止，不许 表示祝愿。 Eg :May you success. ”, 不用 may not “可能不 ” 。

4、-可编辑修改 - 。4. might 表示 “ 可以 ” ，用于过去时中。 Eg: He told me I might smoke in the room. 用于现在时，表示说话更委婉，礼貌。 Eg: He might be doing his lessons now. 5. must 表示 “必须，应该 ” 。表示推测，常用在肯定句中，表 must be Jim. “一定 ” 。 Eg: There is someone knocking at the door. It 否定句中， mustn t 表示禁止，“ 不允许” 。以 must 开头的疑问句，肯定句回答用 must, 否定回答用

5、needn t , 表示“ 不需要，不必”=“don t have to” . 表示“ 偏偏”。Eg: Must you play the piano at this time. 6. need 情态动词： +do, 用 need 提问或回答， 肯定句回答用 must , 否定句回答用 needn t. Eg: You needn t come to school so early. 实义动词： +to do , 用助动词提问和否定。+doing 表示被动。needn t have done Eg: I actually needn表示没必要做某事但是做了。 t have bought so

6、much wine. 7. dare 情态动词，多用于疑问句，否定句，条件句中。 Eg: I m afraid you dare not to do such a thing. 注：I dare say 习惯说成 “ 也许， 我想” 。 Eg: It will rain this afternoon, I dare say. 实义动词： dare to do ,用于肯定句中，当用于否定句或疑问句时，to 可以省略。 Eg: This student doesn t dare to raise any question in class. 8. shall 用于第一人称表示征求意见，询问。 Eg

7、: Shall I open the window? Shall we have lunch here? 表示说话人的态度， “ 命令，警告，允诺，威胁”。 Eg: You shall finish your homework first. -可编辑修改 - 。9. should用于第三人称， 在条约， 规定， 法令等文件中表示义务或规定，“ 应该， 必须” 。（不常用）表示义务，责任“ 应该”。Eg: We should obey traffic laws. 作为 shall 过去式，用于第一三人称，表示征求意见。Eg: Mr Lee asked if he should get his v

8、isa. 表示“ 竟然”。 Eg: It s unthinkable that the boy should sing such a beautiful song. 表示说话人的特殊情感，如惊奇，愤怒，失望等。 Eg: How should I know? 表示劝告，建议， “ 应该” 。 Eg: You should listen to your teacher. 10. will 用于第二人称表示询问，请求，也可以表达现在的“ 意愿”。Eg: Will you pass me the book? 表示意愿，决定， 允诺， 用于各种人称。 Eg: I will try my best to

9、help you. 表示规律性的“ 注定会”。 Eg: People will die without air or water. 11. would 表示过去的意愿或委婉询问。station? Eg: Would you tell me the way to the 12. have to“ 必须，不得不”，强调客观需要，含有时态的变化。 Eg: I ll have to ask Jim instead. 区别： must 表示“ 必须，应该“ ，主观看法。13. ought to 表示职责，义务或要求，及人们应该去做的正确的事或好事。Eg: Humans ought to stop pol

10、luting nature. 比 should 语气强， ought to 反映客观情况，should 表示主观看法。ought to have done 本应该做而没有做。 Eg: You are late. You ought to have arrived five minutes earlier. 14. used to 表示“ 过去常常，过去是“ ，没有人称和数的变化，可以和过去的时间状语连用。否定形式：usedn t to 或 didn t use to ,疑问词将use 提前或-可编辑修改 - 。Did use to ? Eg: He didn t use to be so ca

11、reless. 客观性，和现区别 would :带有主观性，并且现在做不做不知道。Used to :在进行对比，过去常常，现在就不怎么做了。Eg: He would phone me on Sunday. Eg: I used to be very fond of music when I was young. 区别： be used to doing （情态动词）习惯于 Used to do （情态动词）过去是，过去常常 Be used to do ( 过去式 ) 被用来做 Eg: I am already used to noisy city life here. My parents u

12、sed to live in South America. This machine is used to cut up waste paper. 15. 其他 ： had better do 最好做某事 Eg: You had better stay at home. 否定： had better not do be able to 与 can 表示能力时用法相同，但前者有时态的变化，有能力成功做某事。 Eg: We will be able to come back next week. 完形填空Have you ever seen the advertisement: Learn a f

13、oreign language in six weeks, 1 give your money back? Of course, it 2 happens quite like that. The only language 3 to learn is the mother language. And think 4 practice is needed for that. Before the Second World War people usually learned a foreign language 5 the literature(文学 ) of the country. Now

14、 most people want to 6 a foreign language. Every year millions of people start learning 7 . How do they do it? Some people try at home 8 books and tapes, others go to evening classes or watch TV programs. 9 they use the language only 2 or 3 times a week, learning it will 10 a long time, like languag

15、e learning at school. A few people try to learn a language fast by studying for 6 or much easier to learn the language in the country where it 11 hours a day. Its 12 . But most people are 13 to do this, and many people dont have to do so. Machines and good books will be very 14 , but they can not do

16、 the students work. 15 the language is learned quickly or slowly, it is hard work. ( )1. A. so tB. or C. and D. but ( )2. A. canB. impossibleC. neverD. often -可编辑修改 - 。( )3. A. easilyB. difficultC. ableD. easy ( )4. A. how muchB. how longC. how fastD. how many ( )5. A. studiedB. to study C. studying

17、D. study ( )6. A. talkB. tell C. speakD. say ( )7. A. themB. thisC. thatD. it ( )8. A. withoutB. withC. inD. by ( )9. A. IfB. WhenC. SinceD. Until ( )10. A. spendB. useC. takeD. cost ( )11. A. someB. moreC. otherD. less ( )12. A. speaksB. is speakingC. spokeD. is spoken ( )13. A. ableB. possible C.

18、unableD. not possible ( )14. A. careful B. forgetfulC. wonderful D. helpful ( )15. A. eitherB. whetherC. whatD. how 专题练习：一选择题1. It is usually warm in my hometown in March, but it _ be rather cold sometimes. A. must B. can C. should D. would 2. You _ be hungry already - you had lunch only two hours ago! A. wouldn t B. can t C. mustn t D. needn t 3. - What do you think we can do for our aged parents? - You _ do anything except to be with them and be yourself. A. don t have to B. oughtn t to C. mustn t D. can t 4. John promised his doctor he _