1、2021/7/261(最新整理)情态动词cancouldmaymight练习2021/7/262情态动词情态动词2021/7/263 Exercising alone can be boring.I dont know where she is,she may be in Wuhan.You might be right.He asked if he could have a cup of coffee.2021/7/2641.can和could Many of us can use the computer now,but we couldnt ten years ago.*(1)表“_”,
2、指现在和将来用_;指过去用_.能力能力cancould2021/7/265 1.The baby will _ walk in a few months.A can B could C be able to 2.The fire spread very quickly,but luckily everyone _ get out.A.had to B would C.could D.was able to 2021/7/266can 表示一个人长期的能力表示一个人长期的能力,be able to是表示一个较短暂的过程是表示一个较短暂的过程 can 和和be able to 都可以表示都可以表示
3、能力能力.can泛指一般的能力泛指一般的能力,而且而且只有两种形式只有两种形式,即即:can,couldbe able to 则主要指具则主要指具体做到了某件事的能力，其形体做到了某件事的能力，其形式主要是靠式主要是靠be 发生变化，所以发生变化，所以形式比形式比can 多多 2021/7/267 2.-_ I use your bicycle?-Of course,you_.-No,you _ 口语中口语中can,could表示表示“许可许可”,could的语气比的语气比 can委婉，但答语中不用委婉，但答语中不用 could而用而用 can.Can/Couldcancant2021/7/2
4、68 3.-Mr.Brown is on time for everything.How can he be so late for the important meeting?Can 表示表示“惊讶，怀疑，不相信惊讶，怀疑，不相信”的态度（否定句和疑问句）的态度（否定句和疑问句）2021/7/269 4.1)_(可能可能)the news be true?-It _ be true.(不可能不可能)2)He _(可能可能)be on his way home now.Can 表示猜测的表示猜测的“可能可能”，用于，用于_ _,“could”用于用于_,_,_(语气语气_)Can Cantco
5、uld(maymight)否定句否定句 疑问句疑问句肯定句肯定句 否定句否定句 疑问句疑问句比比 Can 弱弱2021/7/2610注 1.Accident can happen on such rainy days.2.Even experienced teachers can make mistakes.3.Children can be naughty.can在肯定句中表示“有时候会”指一种客观的可能性.常用来说明人或事物特征2021/7/2611 The World Wide Web is sometimes jokingly called the World Wide Wait be
6、cause it _ be very slow.A.should B.must C.will D.can2021/7/2612 We _ go to the cinema tonight,but we are not sure.A.can B may C must2021/7/2613 may might 1)表示许可或征询对方许可表示许可或征询对方许可-_ I use your telephone?-Yes,you _.-No,you _.May Mightmaymustnt2021/7/2614 2)表表 推测推测 1）He _(可能可能)come today,but Im not sur
7、e.2)This _ be done by him.(可能不可能不)3)I thought you _ like something to read,so I bought some books for you.A.may B might may mightmay not“可能可能”，用于，用于肯定句和否定句肯定句和否定句只有宾语从句中只有宾语从句中might表过去的表过去的可能性可能性2021/7/2615 4）-Why hasnt Jack come back yet?_ anything have happened to him?-I am not sure,but I guess so
8、mething _ happened.A May;must haveB Can;might have 2021/7/2616(3)may+主语主语+动词原形动词原形“祝某人祝某人/物物”不用不用might May you succeed in the coming exam!May our friendship last forever!祝您美梦成真。祝您美梦成真。祝您的生活美满幸福。祝您的生活美满幸福。May you live a happy life.May all your dreams come true.2021/7/2617 1.-Is Jack on duty today?-It
9、 _ be him.Its his turn tomorrow.A.mustnt B.wont C.cant D.neednt 2.Well,he _ have gone far his coat is still here.A.shouldnt B.mustnt C.cant D.wouldnt2021/7/2618 3.Who_ it be at this time of day?A can B may 4.He is very busy.He_be watching TV at home.A may not B cant 2021/7/2619 5.The climate of the
10、south_ be rather cold in winter.A would B can C must6.-_I use your bicycle?-Of course,you_.A.Can;could B Could ;can 2021/7/2620 7.He said that I _use the phone.A may B might 8.The man looks energetic,so he _ be ill.A may not B cant2021/7/2621Notice:may/might not 可能不（语气不肯定）可能不（语气不肯定）can/could not 不可能
11、（语气肯定）不可能（语气肯定）1.He may not be ill.他可能没病。他可能没病。2.He can not be ill.他不可能有病。他不可能有病。2021/7/2622 9.Helen _ go on the trip with us,but she isnt quite sure yet.Shall B.must C.may D.can 10.We _ have proved great adventurers,but we have done the greatest march ever made in the past ten years.neednt B.may not C.shouldnt D.mustnt may not have done这是情态动词的完成时态，表示“可能没有完成 2021/7/2623
