五高中英语语法之情态动词.ppt

,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,翰林院,情态动词,情态动词是一种特殊的动词，主要用以表明说话者对某一行为的态度和观点，主要包括揣测、判断、需要、可能、各种意愿等。,一,.We use modal verbs to talk about:,1.Ability,（能力）,2.Obligation,（义务）,3.Certainty,（可能性）,4.Permission,（允许）,二,.We also use modal verbs to:,5.Make requests,（提出请求）,6.Make suggestions,（提出建议）,7.Make offers,（提供帮助）,8.Give advice,（提出意见）,一,.Ability(,能力,):,能力,can,could,Be able to,If you have a good sleep,you will,be able to,work out this problem,.,Liu Xiang,can,run the 110m hurdle race within 13 seconds.,3.,表示惊异、怀疑、不相信的态度。（主要用在,否定句,、,疑问句,或,惊叹句,中）,Can,this be true?,Hes such a nice person that he,cant,commit the crime,.,How,can,you be so careless.,4.can never/canttoo,表示“无论怎样,也不过分”，“越,越好”。,You,cant,be too careful while crossing the road.,can/be able to,区别,Edison always wondered why hens,could,hatch(,孵,)chickens while he,was not able to.,can,表示,与生俱来的能力,或,一种客观可能性,，而,be able to,更加强调,通过后天的学习和努力获得的能力，,或者,在某个客观的场合和背景下,，能做到的事情。,can/be able to,区别,A big fire broke out in ABC hotel yesterday.Luckily,everyone,was able to,run out of the building,.,She,can,speak both English and French,1.A computer _ think for itself;it must,be told what to do.,A.cant B.couldnt,C.may not D.might not,2.The fire spread through the hotel very quickly,but everyone _ get out.,A.had to B.would,C.could D.was able to,高考题,3.They will _ run this machine on their,own in three months.,A.can B.could C.may D.be able to,4.That big cinema _ seat 2,000 people.,can B.should C.ought to D.is able to,5.Could I borrow your dictionary?,Yes,of course you _.,A.might B.will C.can D.should,二,.Obligation(,义务,):,Although Liu Xiang is so gifted in hurdle race,yet he,must,work hard to win the gold medal.,Attention,：,Advisability necessity,ought to/should,have to,must,My mother brings me up and takes good care of me,so when she is old,I,must,look after her in return.,三,.Certainty(,可能性,),Shi Dongpeng,might,win a medal at the Olympic Games,Attention:,very uncertain almost certain,Might may could (can)should ought to will must,即时演练：,1.He _ be at home,.,A.may B.might C.must,2.He _ be at home,for he just called me from his home 15 seconds ago.,A.may B.might C.must,must,must,表示肯定的猜测，译为“一定”，不能用于否定句或疑问句。,This,must be,your pen.,He,must be doing,his homework now.,He,must have arrived,already.,2.,表示“坚持”（常用于固定句型：,if you must do sth.,如果你非得要做某事）,If you must leave,do it quietly,Have a try:,They_ be doing the experiment in the lab.,Why,？,Because the lights are still burning,.,A.could B.can,C.must D.would,4.Permission(,允许,),:,May,I eat KFC if I win the gold medal?,may/might:,1.,表示许可。表示请求、允许时，,might,比,may,的语气更委婉一些,.,Might/May,I use your computer?,Yes,you can.,/No,you cant.,2.,用于祈使句中表示祝愿,May,you be happy all your life.,3.,表示推测、可能（只用于肯定句，疑问句则要用,can,或,could,）。,He,may,be very busy now,高考题,1.Might I watch TV after supper?,Yes,you _.,A.may B.must C.might D.could,2.-_ I speak to Mary,please?,-Sorry,she_ come to the phone because she isnt in.,A.Might;wont B.Cant;mustnt,C.May;cant D.Couldnt;shouldnt,3,.-Is John coming by train?,-He should,but he _ not.He likes driving his car.(2002高考题）,A.must B.can C.need D.may,5.Making requests(,提出要求,):,informal,formal,will can could would,Can,you help me with my training?,6.Making suggestions(,提出建议,),:,Shall,we do the training in the morning?,1.,Shall,用于第一、第三人称疑问句中，表示说话人征求对方的意见、向对方请示或提供帮助,1.,Shall,we begin our lesson?,2.When,shall,he be allowed to leave hospital?,3.,Shall,用于第三人称，表示在条约，规定，法令等文件中表示义务或规定，意为“应”、“必须”。,The school rules state that no child,shall,be allowed out of the school during the day,unless accompanied by an adult.,-_ I tell Mary the test results?,-No,you_.Shes already got the score.,A.Will;wont B.Shall;neednt,C.May;mustnt D.Can;dont,The room is so dirty,.,We clean it?,A.will B.shall C.would D.do,高考题,7.Making offers(,提供帮助,):,Dont worry,dear.I,will,wash them right away,will/would:,1.,表示请求、建议等，,would,比,will,委婉客气。,2.,表示意志、愿望和决心,I,will,never do that again.,3.,可表示经常性、习惯性、倾向性。翻译为“经常、惯于、总是”。,The old man would have a smoke under a big tree every afternoon after he,finished,his farm work.,8.Giving advice(,提出意见,):,You,should not/ought not to,eat so much before running.,should:,1.,Should,表示劝告、建议、命令，其同义词是,ought to,；在疑问句中，通常用,should,代替,oughtto,。,Should,I open the window?,2.,情态动词,should,用于第一人称时可以表示说话人的一种谦逊、客气、委婉的语气。,Rose,Sure.By the way,who is your idol?,Jack,Liu Xiang,I,should,say.,3.should,表示意外或惊讶 常译为“居然，竟然”。,I cant believe such a gentleman,should,be so rude to the old.,高考题,Its nearly eight oclock.Mike _ be here at any moment.,A.need B.has to,C.should D.can,Its nearly seven oclock.Jack _be here at,any moment.,A.must B.need C.should D.could,When can I come for the photos?I need them tomorrow afternoon.,-They _ be ready by 12:00.,A.can B.should C.might D.need,