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1、會(huì)計(jì)學(xué)1情態(tài)動(dòng)詞情態(tài)動(dòng)詞can could may might練習(xí)練習(xí)1.Exercising alone can be boring.2.I dont know where she is,she may be in Wuhan.3.You might be right.4.He asked if he could have a cup of coffee.第1頁(yè)/共21頁(yè)1.can和could Many of us can use the computer now,but we couldnt ten years ago.*(1)表“_”,指現(xiàn)在和將來(lái)用_;指過(guò)去用_.能力能力cancoul

2、d第2頁(yè)/共21頁(yè)n n1.The baby will _ walk in a few months.n nA can B could C be able to n n2.The fire spread very quickly,but luckily everyone _ get out.A.had to B would C.could D.was able to 第3頁(yè)/共21頁(yè)can 表示一個(gè)人長(zhǎng)期的能力表示一個(gè)人長(zhǎng)期的能力,be able to是表示一是表示一個(gè)較短暫的過(guò)程個(gè)較短暫的過(guò)程 n ncan 和和be able to 都可以表示能力都可以表示能力.can泛泛指一般的能力指一般

3、的能力,而且只有兩種形式而且只有兩種形式,即即:can,couldbe able to 則主要指具體做到了則主要指具體做到了某件事的能力，其形式主要是靠某件事的能力，其形式主要是靠be 發(fā)生發(fā)生變化，所以形式比變化，所以形式比can 多多 第4頁(yè)/共21頁(yè)n n2.-_ I use your bicycle?n n -Of course,you_.n n -No,you _ 口語(yǔ)中口語(yǔ)中口語(yǔ)中口語(yǔ)中can,couldcan,could表示表示表示表示“許可許可許可許可”,could,could的語(yǔ)氣比的語(yǔ)氣比的語(yǔ)氣比的語(yǔ)氣比 cancan委婉，但答語(yǔ)中不用委婉，但答語(yǔ)中不用委婉，但答語(yǔ)中不用委

4、婉，但答語(yǔ)中不用 couldcould而用而用而用而用 can.can.Can/Couldcancant第5頁(yè)/共21頁(yè)n n3.-Mr.Brown is on time for everything.How can he be so late for the important meeting?n nCan 表示表示“驚訝，懷疑，不相信驚訝，懷疑，不相信”的態(tài)度（否定句和疑問(wèn)句）的態(tài)度（否定句和疑問(wèn)句）第6頁(yè)/共21頁(yè)n n4.1)_(可能可能)the news be true?n n-It _ be true.(不可能不可能)2)He _(可能可能)be on his way home n

5、ow.n nCan 表示猜測(cè)的表示猜測(cè)的“可能可能”，用于，用于_ _,“could”用于用于_,_,_(語(yǔ)氣語(yǔ)氣_)Can Cantcould(maymight)否定句否定句 疑問(wèn)句疑問(wèn)句肯定句肯定句 否定句否定句 疑問(wèn)句疑問(wèn)句比比 Can 弱弱第7頁(yè)/共21頁(yè)注n n1.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“有時(shí)候會(huì)”指一種客觀的可能性.常用來(lái)說(shuō)明人或事物特征第8頁(yè)/共21頁(yè)n nThe

6、 World Wide Web is sometimes jokingly called the World Wide Wait because it _ be very slow.A.should B.must C.will D.can第9頁(yè)/共21頁(yè)n nWe _ go to the cinema tonight,but we are not sure.n nA.can B may C must第10頁(yè)/共21頁(yè)n nmay might n n1)表示許可或征詢(xún)對(duì)方許可表示許可或征詢(xún)對(duì)方許可n n-_ I use your telephone?n n-Yes,you _.n n-No,yo

7、u _.May Mightmaymustnt第11頁(yè)/共21頁(yè)n n2)2)表表表表 推測(cè)推測(cè)推測(cè)推測(cè)n n1）He _(可能可能)come today,but Im not sure.n n2)This _ be done by him.(可能不可能不)n n3)I thought you _ like something to read,so I bought some books for you.n nA.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賓語(yǔ)從句中只有賓語(yǔ)從句中might表過(guò)去的表過(guò)去的可能性可能性第12頁(yè)/

8、共21頁(yè)n n4）-Why hasnt Jack come back yet?_ anything have happened to him?-I am not sure,but I guess something _ happened.A May;must haveB Can;might have 第13頁(yè)/共21頁(yè)(3)may+主語(yǔ)主語(yǔ)+動(dòng)詞原形動(dòng)詞原形“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!祝您美夢(mèng)成真。祝您美夢(mèng)成真。祝您的生活美滿(mǎn)幸福。祝您的生活美滿(mǎn)幸

9、福。May you live a happy life.May all your dreams come true.第14頁(yè)/共21頁(yè)n n1.-Is Jack on duty today?1.-Is Jack on duty today?-It _ be him.Its his turn -It _ be him.Its his turn tomorrow.tomorrow.A.mustnt B.wont A.mustnt B.wont C.cant D.neednt C.cant D.needntn n2.Well,he _ have gone far his 2.Well,he _ ha

10、ve gone far his coat is still here.coat is still here.A.shouldnt B.mustnt A.shouldnt B.mustnt C.cant D.wouldnt C.cant D.wouldnt第15頁(yè)/共21頁(yè)n n3.Who_ it be at this time of day?n n A can B may 4.He is very busy.He_be watching TV at home.A may not B cant 第16頁(yè)/共21頁(yè)n n5.The climate of the south_ be rather c

11、old in winter.n nA would B can C must6.-_I use your bicycle?-Of course,you_.A.Can;could B Could ;can 第17頁(yè)/共21頁(yè)n n7.He said that I _use the phone.n nA may B might n n8.The man looks energetic,so he _ be ill.A may not B cant第18頁(yè)/共21頁(yè)Notice:may/might not 可能不（語(yǔ)氣不肯定）可能不（語(yǔ)氣不肯定）can/could not 不可能（語(yǔ)氣肯定）不可能（語(yǔ)

12、氣肯定）1.He may not be ill.他可能沒(méi)病。他可能沒(méi)病。2.He can not be ill.他不可能有病。他不可能有病。第19頁(yè)/共21頁(yè) 9.Helen _ go on the trip with us,but 9.Helen _ go on the trip with us,but she isnt quite sure yet.she isnt quite sure yet.A.A.Shall B.must C.may D.can Shall B.must C.may D.can 10.We _ have proved great 10.We _ have proved great adventurers,but we have done the adventurers,but we have done the greatest march ever made in the past greatest march ever made in the past ten years.ten years.A.A.neednt B.may not C.shouldnt neednt B.may not C.shouldnt D.mustnt D.mustnt may not have done這是情態(tài)動(dòng)詞的完成時(shí)態(tài)，表示“可能沒(méi)有完成第20頁(yè)/共21頁(yè)