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1、不定式P60structure1,语法功能(主,表,宾,定,状,补)2,独立结构(totellthetruth.``)3,疑问词+不定式4,省略to的不定式5,不定式的复合结构(一)语法功能:除谓语动词之外主语,宾语,表语,定语,状语,补语不定式------做主语做主语:不定式=动名词Toerrishuman.犯错人皆难免/人皆有过。Toerrishuman;toforgive,divine.老年人很难跳槽。Changeone’sjobs/job-hoppingItisdifficultforseni
2、orstochangetheirjobs.做表语:不定式≈动名词Thekeytofosteringdiversityisforpeopletolearntheirancestraltongue,aswellasthedominantlanguage.(剑4,T2,R)培养多样性的关键是让人们不仅学习占主导地位的语言,同时也学习祖先们传下来的语言。不定式-----作表语MyplanistoattendeitherCambridgeorOxfordinEngland.(剑3,T3,S)总结:1,todo-
3、---还没做的事情2,主语是表示愿望意愿目的的词(purpose,aim,goal,target,plan,hope,wish)不定式-------作动词宾语许多减肥者决定吃素。weightlosershaveavegetariandietMostweightlosersdecidetohaveavegetariandiet。后接不定式作宾语的动词:(p61)afford,agree,aim,ask,begin,bother,choose,continue,dare,decide,decline,de
4、mand,deserve,determine,expect,fail,forget,happen,help,hesitate,manage,mean,need,neglect,offer,plan,pretend,promise,refuse,remember形式宾语Ifinditdifficulttobelievehim.主谓宾宾补真正的宾语Ifinditisdifficulttobelievehim.主谓宾语从句Ifindittoosimpletosaythatapersonwhoseparent
5、sarecriminalswillbecomeone,too.(剑5,T4,W)不定式------作定语有些名词,要求用动词不定式作其定语.Theonlyway(toovercomefears)istoconfrontthem.战胜恐惧的唯一方法就是面对恐惧.Thereareplentyofopportunitiesfornewtechnologies(tohelpfilterandcategorizeinformation).(剑5,T3,R)能够对信息进行过滤和分类的新型技术有着大量的机会。不定式
6、------作状语目的状语:也可以用inorderto/soastoScientistsareworkingtodiscoverthelinksbetweentheweatherandhumanbeings’moodandperformance.(剑3,T3,R)科学家们正致力于研究天气和人类情绪以及工作表现之间的关系。结果状语:Liftastoneonlytodropitonyourownfeet.Ofcoursetherewereyear-to-yearfluctuations,upsanddow
7、ns,buttherewerenotstrongenoughtochangetheverystrongoveralldowntrendfortheUS,anduptrendforJapan.(剑3,T4,W)当然每年都存在浮动,或者升高或者降低,但是都不足以改变美国强劲的下降势头和日本强劲的上升势头。(二)不定式作独立成分作句子插入语:总之,中国像世界上其他发展中国家一样,正面临一个两难境地。(剑4,G,TA,R)Toconclude,China,likeeveryotherdevelopingcou
8、ntryintheworld,isfacingadilemma.不定式习语(P65)确切地说,tobeexact/tobesure老实说tobehonest,/totellthetruth,更不用说```Tosaynothingof```/nottomention`首先tobeginwith最后,总之,简而言之toconclude/tosumup/tobebrief(三)疑问词+不定式=名词Theymakefriendsandlearnhowtogeto