小升初情态动词专项

1、学习必备欢迎下载六年级英语专项练习：情态动词、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。、情态动词的种类：情态动词有 can （could）, may, must, have to, shall （should）, will （would）, need等，这些是小学阶段需掌握的情态动词。、情态动词的用法：、 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 Ianguages.（知

2、识）Can you skate?（技能）2）表示请求和允许。Can I go now?Could Ca n you hel p me?Yes, of course.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。CanThisHowthis be true?can' be done by him. can this be true?一、 may1）表示请求和允许。否定回答时可用can'或mustn'，表示不可以，禁止”。-May

3、I smoke in this room?-No, you mustn' t.t）而用Can I. ?在口语中更常见。而have to表示不得不，很勉强,May I take this book out of the room? Yes, you can. (No, you can' / mustn' 用May I. ?征徇对方许可时比较正式和客气，2)1 .2.3)表示推测、可能性(不用于疑问句)。He may be very busy now.Your mother may not know the truth.用于祈使句，表示祝愿。May you succeed!

4、must, have to1）must表示必须、必要,带有命令强制口气; 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 when 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mu st引起的疑问句时，如果是否定的，不能用 mustn' t禁止，不准），而用nee dn' tdon' tiave to （不必要）。-M

5、ust we hand in our exercise books today?Yes, you must.No, you don' thave 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”。You' reTom s good friend, so you must know what he likes best.四、Your mother must be wait ing for you now.shall,1) shall用于第一人称，征求对方的意见。What shall we do this eve

6、ning?警告、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。1. You shall fail if you don' twork hard.（警告）2. He shall have the book when 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、 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 n ever do that aga in.Will / Would you pass me the ball, please?相关练习：（一）用适当的情态动词填空。1. Must I borrow the book with my ID card? No,

8、 you2. I use your car? Yes, you.I go home now? No, youstay here.4. My mother is ill. Istay at home and look after her.5. you like some tea?take more exercise.3.6. You7.you tell me how to get to the Qingyun P ark?8. The clocktell us the time.you like to go fish ing with me?10.we p lay football this a

9、fter noon?（二）按要求改写句子。1.9.I can run fast.2.3.Ifast.（ 否定句）You must return the book now.（般疑问句）I the book now? No, you.He can play basketball well.（一般疑问句）hebasketball well?They must take the books out of the room.（否定句）Theythe books out of the room.He should get up early. （否定句）Heget up late.（三）对划线部分提问。4.

10、5.1. We mustn' t picthe flowersi n the park.2. We should plan tmore trees3. I would you like somejcakesto eat?4. She could swim fi.ve.yea.rs.-agQ5. We should protect animalsbecause.-they are.-our.-good- friends .6.Tom could go to the ci nema 电影院）with hJssjster.（四）圈出正确答案。1） Lucy should A. fini sh

11、esher homework now.B. fin ishi ng2）My mother would back soon.A. cameB. comesC. comeC. fini shedD. finishD. will come3)Could youA. givi ngme a hand.D. giveB. givesC. give n4)Should Inow.A. startedB. starti ngC. startD. starts5)I take this one?A. CouldB. WillC. AreD. Do6)-Can you sp eak En glish?-No,

12、I.A. must n'tB. can'tC. could n'tD. may not7)Yougo and see a doctor because you had a fev发烧).A. couldB. mightC. shouldD. would8)Jimcome toni ght, but he isn't very sure yet.A. shouldB. mightC. wouldD. shall9)The childre nplay football on the road.A. could n'tB. couldC. mustD. must n't10)1 - Can I take this book out?-No, you.A. must notB. could notC. will notD. aren't11)1 1like to go with you.A. couldB. wouldC. shouldD. will12)1 She is bleedi ng 流血).Shego to hos pital quickly.A. couldB. wouldC. shouldD. will13)1 Youwat