小升初情态动词

1、小升初英语专项练习：情态动词一、情态动词的定义：情态动词有词义，但它不能单独作谓语，它必须和其他动词一起构成谓语。情态动词没有人称和数的变化；它的后面必须跟动词原形。二、情态动词的种类：情态动词有can （could）, may, must, have to, shall （should）, will （would）, n eed等，这些是小学阶段需掌握的情态动词。三、情态动词的用法：一、can, （could过去式）1）表示能力（体力、知识、技能）。 Can you lift this heavy box（体力）Mary can speak three Ian guages.（知识） Can

2、 you skate （技能）2）表示请求和允许。 Can I go nowCould Can you help me Yes, of course.'Certa ini y. Sure.Could Can you tell me the way to the Zoo3）表示推测（惊讶、怀疑、不相信的态度），用于疑问句、否定句和感叹句中。Can this be true This can' t be done by him. How can this be true二、may1）表示请求和允许。否定回答时可用can' t或mustn' t，表示"不可以

3、，禁止”。May I smoke in this room No, you mustn ' t.May I take this book out of the room Yes, you can. （No, you can ' t /mustn' t）用May I.征徇对方许可时比较正式和客气，而用Can I.在口语中更常见。2 ）表示推测、可能性（不用于疑问句）。1. He may be very busy now. 2. Your mother may not know the truth.3）用于祈使句，表示祝愿。May you succeed!三、must, h

4、ave to1）must表示必须、必要，带有命令强制口气；而 have to表示不得不，很勉强，强调客观 需要。 You must come in time. We must help each other.My sister is ill; my mother has to look after her. I had to work whe n I was yourage.注意：must的否定形式 must n't表示禁止，意思是"不能，不许”。在回答由 must弓I起的疑问句时，如果是否定的，不能用mustn' t （禁止，不准），而用needn' t,

5、don ' t have to （不必要） 。Must we hand in our exercise books today - Yes, you must. No, you don' t have to / you n eed n' t.2）must表示推测、可能性（只用于肯定的陈述句），意思为“一定是，必然”。1. You' re Tom' s good friend, so yo u must know what he likes best.2. Your mother must be wait ing for you now.四、shall,1

6、）shall用于第一人称，征求对方的意见。What shall we do this evening2）shall 用于第二、三人称，表示说话人给对方的命令、警告、允诺或威胁。1. You shall fail if you don' t work hard.（ 警告 ）2. He shall have the book when I finish it.（允诺）3. He shall be pun ished.（威胁）五、should 和shouldn ' t表示应该劝告、建议。I should help her because she is in trouble.You s

7、hould go to class right away. She shouldn' t play computer games too much.六、will （过去式would ）1）做助动词，表示一般将来时，将要。He will be home at six. Bob will leave school next mon th.2）作为情态动词时表示“愿意”“意愿”“会”。I will help you. I will n ever do that aga in. Will / Would you pass me the ball, please（一）根据所学情态动词，填写适当形

8、式。1）you like to go fish ing with me2）I go home now No, youstay You take more exercise.4） The clocktell us the time. 5）you tell me how to get to theQingyun Park6）My mother is ill. Istay at home and look after her.7）you like some tea 8） Must I borrow the book with my ID cardNo, you.9）I use your car Ye

9、s, you.10）we play football this after noon（二）按要求改写句子。1. I can swim fast. Ifast.（否定句）2. You must return the books now.（般疑问句）-I the books now - No, you3. They could take the books out of the room.（否定句）Theythe books out of the room.4. He can play basketball well.（一般疑问句） hebasketballwell5. You should ge

10、t up early.（否定句） Youget up late.6. Could I borrow your pen （肯定否定回答）（三）对划线部分提问。1. We must n't pick the flowers in the park. 2. We should pla nt more trees. 3. I would you like some cakes to eat 4. She could swim five years ago.5. We should protect an imals because they are our good friends .could

11、 go to the cinema （ 电影院）with his sister .（四）、圈出正确答案。1）Lucy should her homework now. A.finishes B. finishing C.finished D.finish 2）My mother would backsoon. A.cameB. comes C. comeD. willcome 3） Could youme a hand.A. givi ngB. givesC. give n D.give4）Should I _now.A.startedB.starti ngC.startD.starts5）I

12、 take this oneA. Could B. WillC. AreD. Do6） - Can you speak En glish - No, I . A. mustn't B. can't C. could n't D.发烧）.may not 7 ) You go and see a doctor because you had a fever(A. could B. mightC. should D. would8) Jim come tonight,but he isn't very sure yet. A.shouldB.might C. woul

13、dD. should 9) The childre n play football on the road. A.could n't B. could C.must D. must n't 10)- Can I takethis book out. -No, you.A. must n ot B. could notC. will notD. aren't11) I like to go with you. A. could B. would C. should D. will12) She is bleeding ( 流血).She go to hospital qu

14、ickly.A. could B. would C. should D. will13) Youwatch TV after finishing your homework.A. wouldB. can C. must D. should14) It is late. Igohome now. A. could B. would C. should D. will15) - What I do at the meeting A. has to B. would like C. should D. notshould 16) you tell me where the WenHuaMarket

15、is A. could B. must C. should D. have1 John_ come to see us tonight,but he isn't very sure yet. A. may B. need C. can' tD. must 2 Joh n isn ' t in the classroom. He play soccer on the playground with Bob.A. can B. must C. should D. can' t3 Thatnot be her husba nd . She is still sin g

16、le. A. may C. could D.might 4 Yougo and see a doctor at once because you got a fever.A. can B. must C. dare D. would5 -Canyou speak Japanese -No, I.A.must n't B. can't C.n eed n't D. may notbe in the classroom, I think. -No,go home a minute ago. can; may not B. must; may not may; must n't 7 -Is Lena swim ming in the pool -No, she6 -Hehebe in theC. may; can'tswim. She isclassroom. I saw himD.terrified of water.A. may not B. must not C. can'tD. n eed n