2020中考英语情态动词讲与练(无答案)

情态动词讲与练情态动词一．情态动词can_________________ can’t_____________________May_________________ may not______________________Must______________ mustn’t_______________________二、情态动词的特点1. 情态动词无人称和数的变化,2. 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not"。

3. 个别情态动词有过去式, 过去式用来表达更客气, 委婉的语气, 时态性不强, 可用于过去，现在。

三、情态动词的用法1. can/could；can’t/couldn’t (否定)1) 表示能力, 意为“能、会”, 例如：I can speak a little English. -- Can you ride a bike?I can’t swim. -- Yes, I can. / No, I can’t.2) 表示请求或允许，多用于口语中，意为“可以、能”等You can go home now. 现在你可以回家了 -- Can I borrow your bike?You can’t stop your car here. -- Yes, you can. / No, you can’t.3) 用于否定句、疑问句中，表示猜测、怀疑或不肯定.Lucy can’t be at home now, she went to the park just now.Where can it be? I can’t find my football.【注意：】1）. could 是can的过去式, 有两种用法, 一种表示过去式；一种用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去，现在。

2）. be able to 意为“有能力，能够做...”, 相当于can/could, 但它有人称，数和时态的变化。

2. may; may not (否定)1) 表示“请求，许可”，此时与 can 同义，可以互换使用May I borrow your bike? Can I borrow your bike?Yes, you may. / No, you may not. Yes, you can. / No, you can’t.2) may/might表示不太肯定的猜测，意为“有可能”Lucy may come to school late today.It might rain today.【注意】：might 是may 的过去式, 有两种用法, 一种表示过去式，一种表示更加委婉, 客气的语气或对可能性的怀疑。

3. must; mustn’t (否定)1) must(“必须”, 表示命令)，mustn’t(“一定不能”, 表示强烈禁止...)You must go to bed before 22:00pm.You mustn’t play with fire. It’s dangerous!--Must I write down the sentences？--No，you needn’t. (--No,you don’t have to)注意：在回答must的疑问句中，否定回答用needn’t或don’t have to表示“不必”，不用mustn’t2) must 还可以表示非常肯定的猜测，意为“一定”The girl in a red skirt must be Lucy.3) must/ have to 的区别：①. must表示必须，强调主观上的愿望；have to表示“不得不”，强调客观需要You must go be bed before 22:00pm.My bike is broken, so I have to go to school on foot.②. have to 有人称、数、时态的变化；must则没有。

I have to clean the classroom today.She has to finish her homework first.It was late, he had to go to school without breakfast.【习题】1. --Must I finish the work today?--No,you . You can finish it tomorrow.A. mustn’tB. can’tC. shouldn’tD. needn’t2. -- I swim here? --I’m sorry. Children swim alone here.A. Must can’tB. May mustC. Can mustn’tD. Can’t can3. --Meng Fei broke his arm while recording If You Are The One in Beijing. --Really? Then perhaps he host TV programmes for some time.A. needn’tB. mustn’tC. shouldn’tD.can’t4. --What do you want to eat for lunch? I will prepare earlier today.--Honey, you . Let’s go out to have something different.A. mustn’tB. can’tC. shouldn’tD.don’t have to5. Thomas, please be quiet. The others hear very well.A. can’tB. mustn’tC. shouldn’tD.needn’t6. --You see, a man is cutting a tree on the Moon.--It be true. The teacher says there is no air on the moon.A. can’tB.may notC. shouldn’tD.mustn’t7. --Can I go fishing with you,Dad?--No, you . You stay at home and do your homework first.A. won’t mayB. can’t mustC. shouldn’t oughtD. needn’t should8. Anna hasn’t come to school today. I think she be ill.A. canB.has toC. mayD.should9. --Fifty dollars for such a T-shirt! You be joking!--I’m serous. It’s made of silk.A. mustB.needC. mayD.can10. _ _____I go and apologize to my teacher for my mistake?A. ShouldB.NeedC.CanD. May11. May I stop my car here,sir? --No,you_____.A.may notB.mustn’tC.can’tD.needn’t12. _____I change the bulb(灯泡) now?--No,you may not. You_____switch off the electricity.A.Can;needB.May;mustC.Must;mustD.Can;must13. John____ come to see us tonight, but he isn’t very sure y et.A.mayB.canC.has toD.must14. My mother is ill.So I _____to look after my little brother.A.mustB.mayC.have toD.should15. I’m afraid it _____rain tonight.A.canB.couldC.may beD.might情态动词（should ought to）一、had better的用法1. had better 是固定词组，意思是“应该；最好”，后接不带 to 的不定式，其用法相当于情态动词，动词 had 没有人称或数的变化。

1) You'd better go there by bus.你最好是坐公共汽车去那里。

2) We'd better not tell him the news.我门最好不要告诉他这个消息。

二、should的用法1.情态动词should 常用来表示劝告、建议或义务，意思是“应该”，：1）You shouldn't come to such a decision hastily .你不应该匆忙作出这样的决定。

2）The party should be great fun .那个集会一定很有意思。

1. You'd better _____ late next time .A. don'tB. not beC. not beingD. won't be2. ---- Can I leave this door open at night ?----- You _______ better not .A. shouldB. wouldC. couldD. had3. ---- Let's go to the cinema , shall we ?---- ______ .A. Yes , I shallB. No , I can'tC. Yes , thank youD. No , we'd better not7b7祈使句1.祈使句的定义及句式特征：定义：祈使句是用来表示请求、命令、叮嘱、邀请、劝告或祝愿等的句子。

它的特点是通常省略主语you,以动词原形开头，末尾可用句号或感叹号。

祈使句没有疑问句的形式，一般只有肯定和否定两种形式。

be+形容词 / 名词Be quiet / quick! Be a good student!2）以实义动词开头的祈使句，这种祈使句的常用结构为：动词原形+宾语（+其他）。

Come in, please！ Please open your books！3)let型（Let+宾语+动词原形+其他）Let him do it by himself. Let me help you.3.否定形式（一般在动词上否定，也可以用否定副词（never）来表示）1）be型【Don’t be +其他成分（形容词、名词或介词短语）】Don’t be careless! Never be late again next time!①在这种句型中，be不能省略②否定副词not不可置于be之后2）do型（Don’t +动词原形+其他）Don’t believe him! Don’t worry! Never do it again!一、单项选择：1. Please ____, they’re having a meeting.A. not be so noisyB. be quiteC. mustn’t talkD. no speaking2. ____ to meet me at the station. I’ll be waiting th ere.A. Not to forgetB. Not forgetC. Forget notD. Don’t forget3. It’s a fine day. Let’s go fishing, ____?A. won’t weB. will youC. don’t weD. shall we4. Don’t smoke in the meeting-room, ____?A. do youB. will youC. can youD. could you5. ______ me go. It is very important for me.A. Do letB. Let doC. Doing letD. To do let6. He is not honest. ______ believe him.A. NotB. Don’tC. To notD. Not to7. _____ up early tomorro w, or you can’t catch the train.A. GettingB. GetC. To getD. Got8. _____ in the street. It’s dangerous.A. Not playB. Not to playC. Don’t playD. Don’t to play9. Lucy, ____ the door or someone will come in.A. closeB. closesC. not closeD. is closing10. ____ and play football in the street after lunch.A. Let’s not to goB. Let’s not goC. Let’s don’t goD. Not let’s go11. A sign with the words“____” is often found in a bus.A. Not parkingB. Not smokingC. No parkingD. No smoking12. ____ Chinese in you English class.A. Not speakB. Don’t speakC. Speak notD. Don’t speaking13 . _____ the boxes. You may use them later.A. KeepB. KeepingC. To keepD. Kept14. Never come late again, ______?A. will youB. won’t youC. do youD. does he15. The TV is too loud. Please________.A. turn it downB. to turn it downC. turn down itD. to turn down it16. _______ cross the road until the traffic lights turns green.A. NotB. Won'tC. Doesn'tD. Don't17. Kate, _______ your homework here tomorrow.A. bringB. bringsC. to bringD. bringing18. ________ me the truth, or I'll be angry.A. TellingB. To tellC. ToldD. Tell二. 用括号内所给动词的适当形式填空：1. It’s an important meeting. __________ (not, be )late.2. ____________ (not,make) any noise! Your mother is sleeping.3. ____________ (not, speak) with your mouth full of food and ____________ (be) polite.4. ____________ ( not, talk) and ____________ (read) aloud.5. ____________ (not,leave) your homework for tomorrow, Larry.6. ____________ (look) out! A car is coming.7. ____________ (give) us ten years and just see what our country will be like.8. ____________ (not, let) the baby cry.9. Wear more clothes or you ____________ (catch) a cold.10. Let’s ____________ (not, say) anything about it.。