情态动词练习

1、情态动词1This key _ be Peters. His is still in the lock.Amay notBcan tCmustntDneednt2Its cold outside. Youd better _ your coal.Anot to take offBnot take offCto not take offDdont take off3 _ I take the newspaper away？ -No, you mustnt. You _ read it only here.AMust； canBMay； canCNeed； mustDMust； must4 _ y

2、ou like some more tea， sir？ -No, thanks.AWouldBMayCMustDShall5May I go now？ -No, you _ . You _ stay here.Aneednt； has toBmustnt； have toCcant； mustDneednt； must6Must I write all the words down now？ -No, you _ .AmustntBcantCwontDneednt7May I go out and play basketball now？ -No, you _ finish your home

3、work first.AmustBcanCmayDneed8You _ worry about your son. He will get well soon.AneedntBcantCmustnt9 _ I come in， Mr Green？ -Yes, come in, please.AMustBMayCWillDNeed10He isnt in the school. I think he _ be ill.AcanBshallCmust11“Must I come here before eight oclock？”“No， you _ .”AcantBcouldntCmustntD

4、neednt12I havent brought my dictionary with me. _ I use yours？AMustBShallCMayDNeed13You cant swim， can you？ -_.AYes， I cantBNo， I cantCYes， you canDNo， I can14He can hardly see anything， _ ？Acant heBcould heCcan heDcouldnt he15_ to have your lunch with me this afternoon？AWould you likeBIf you likeCD

5、id you likeDAre you like16Will you come to see the film with me？ -_.ANo， I dontBsorry， I cantCYes， I amDYes， I wasnt17I _ keep the book a little longer？ -Yes, you can.AMustBNeedCCanDShould18 _ I watch TV this evening， Mum？ -Yes, you _ .AMay； mayBmust； canCMust； mayDNeed； need19Mike must work harder

6、at his lessons， _ ？Aneednt heBmustnt heCdoesnt heDisnt he20May I go now？ -No, you _ , You _ stay here.Aneednt； here toBneednt mustCmustnt； have toDneednt； has do21Tom _ it if he doesnt want to.Adoesnt need toBneed not to doCneeds not to doDneed not do22Put on more clothes. You _ be feeling cold with

7、 only a shirt on.AcanBcouldCwouldDmust23May I keep the book for two weeks？ -No, you _ .AcantBmay notCmustntDmight not24_ take the man upstairs？AHad I better notBHad I not betterCHadnt I better toDDid I have better not25Must I return the book this morning？ -No, you _ . But you _ return it before supp

8、er.Aneednt， mustBmustnt， canCmustnt mayDcant. need26 _ I get up at five oclock tomorrow morning？ -No, you _ .AMust， cantBCant， canCMust， needntDMust， shouldnt27Its quite early. We _ worry about the time.AmustntBmay notCneedntDcant28May I go swimming now？ -No, you _ .AmustntBmay notCcouldntDneednt29T

9、he traffic _ stop when the lights are red.AmustBmustntCmayDcant30You _ never play in the street. Its not safe.AcanBmayCmustDneed答案1Bcant在此表示“不可能”。 may not表示“不可以”，mustnt表示“不准”， neednt表示“不必”。2B此题考查 had better的用法。 had better后接动词原形，表示“最好（做）”， had better的否定形式是“had better not+动词原形”。 take off作“脱下（衣物）”讲。3Bm

10、ay和can在疑问句和陈述句中都可表示“许可”。4AWould you like？ 表示委婉的邀请或征询意见。 B、 C、 D 三个选项中的助动词不能与like搭配。5CA项的两个各选内容却不对。B项的错误是第一句虽然可用 mustnt，但第二空不能用 have to（表客观需要）。6D7AB方先说“不行（No），后面就是”命令式的言辞，（must），而不是说“可以（may）”做什么了。8A后一句说“他很快就康复了”，还可推测出前一句应是“不必着急。”9B在一般词句中用May表示“请求”。10Cmust 是此处表示猜测，意为“一定是”。11Dmust的古定回答用 neednt.12C13B在用Yes/No的答语中，前后的肯、否定形式必须一致。14C15A答案16B17C18Amay开头的问句的肯定答语仍用 may.19A主句中的must表“必须”，故附加部分用neednt.20C21D注意 need做情态动词可用于疑问和否定句，其构成分别为 Need sb. （do）？和 sb. neednt（do） need无人称变化。做实意动词时，构成Do（Does） sb. need to （do）？和sb. dont（doesnt