小升初情态动词

1、小升初情态动词一、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 youlift this heavy box? （体力）Mary can speak three Ianguages.（知识） Can

2、you skate?（技能）2）表示请求和允许。 Can I go now?Could Can you help me? -Yes, ofcourse.'Certa ini y. Sure.Could Can you tell me the way to the Zoo?3）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' be done by1、may1）表示请求和允许。否定回答时可用can'或mustn' t，表示“不可以，禁止”。-May I smoke in this room?

3、-No,you mustn ' t.-May I take this book outof the room?- Yes, you can. (No, you can't / mustn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 yousucceed!三、 must, have to1）must表示必须、必要，带有命令强制口气； 而h

4、ave 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 your age.注意：must的否定形式 mustn'表示禁止，意 思是“不能，不许”。在回答由must引起的疑问句时，如果是否定的，不能用mustn '（禁止,不准），而用needn' t, don' t have to（不必要）- Must we hand in ou

5、r exercise books today?- Yes, you must.- No, you don ' t have to / you needn' 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' reTom s good friend, so you must know what he likes best.2. Your mother must be waiting for you now.四、shall,1）shall用于第一人称，征求对方的意见。What shall we do this eve

6、ning?2）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。警告1. You shall fail if you don' t work ha©（2. He shall have the book whe n I finish it.（ 允 诺）3. He shall be punished.（威胁）五、should和shouldn '表示应该劝告、建 议。I should help her because she is in trouble.You should go to class right away. She shouldn 

7、9; 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 n ext mon th.2）作为情态动词时表示“愿意”“意愿”“会”。I will help you. I will never do that again.Will / Would you pass me the ball, please?（一）根据所学情态动词，填写适当形式。1）you like to go fish ing with me?2）I go ho

8、me now? No, youstay here.3） Youtake more exercise.4）The clock ell us the time. 5）ou tell me how to get to the Qin gyu n Park?6）My mother is ill. I tay at homeand look after her.7）you like some tea? 8） Must Iborrow the book with my ID card?No, you .9） use yourcar? Yes, you.10）we play football this af

9、ter 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 theroom.（否定句）Theythe books out of theroom.4. He can play basketball well.（一般疑问句） hebasketball well?5. You should get up early. （否定句）Youget up la

10、te.6. Could I borrow your pen?（肯定否定回 答）(三) 对划线部分提问。1. We must n'tpick the flowers in the park.2. We shouldpla nt more trees.3. I would you like some cakes to eat? 4. She could swim five years ago.5. We should protect animals because they are our good frie nds .6. Tom could go to the cinema (电影院)

11、with his sister .(四) 、圈出正确答案。1) Lucy should her homework now. A.fini shesB. finishingC. fini shedD. finish2) My mother would back soon. A.came B. comes C. come D. will come3) Could you me a hand.A.giv ingB. gives C. give nD. give4) Should I now.A. started B.starti ng C. startD. starts5) I take this

12、one?A. Could B.WillC. AreD. Do6) - Can you speak English?- No, I . A.must n'tB. can'tC. could n't D. may not 7 )You go and see a doctor becauseyou had a fever( 发烧).A. couldB. mightC. shouldD. would8) Jimcome tonight, but he isn't very sureyet. A. should B. might C. would D.should 9)

13、The children play football onthe road. A. could n'tB. couldC. mustD. must n't 10 ) - Can 1 take this book out.-No,you .A. must notB. could not C. will notD.aren't11) Ilike to go with you.A.couldB. wouldC.shouldD. will12) She is bleeding (流血).Shego tohospital quicklyA. couldB. wouldC.shou

14、ldD. will13) Youwatch TV after fin ishi ng yourhomework.A. wouldB. canCmustD. should14) It is late. I go home now. A.could B. would C. should D. will15) - What I do at the meeting?A. hasto B. would like C. should D. not should 16 )you tell me where the WenHuaMarket is? A. could B. must C. should D.

15、have1 John_ come to see us toni ght, but he isn't very sure yet. A. may B. need C. can' tD. must 2 John isn ' tn the classroom. He play soccer on the playgro und with Bob.A. canB. must C. shouldD.can t3 Thatnot be her husba nd . She is stillsingle.A. mayB.canC. could D.might 4 Yougo and

16、see a doctor at oncebecause you got a fever.A. canB. must C. dareD.would5 -Can you speak Japanese? -No, I. A.must n'tB. can't C. n eed n'tD. may not6 -Hebe in the classroom, I think.-No,hebe in the classroom. I saw him go homea minute ago. can; may not B. must;may notC. may; can'tD. may;must n't7 -Is Lena swimmi ng in the pool?-No, she swim. She is terrified of water.A. may notB. must not C. can'tD. n eed