英语语法-非谓语.ppt
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1、welcome,非谓语动词(复习)NON-FINITE VERBS,近五年非谓语动词在高考中的复现率,一、形式,二、功能,to do,to be doing,to have done,to be done,to have been done,doing,having done,being done,having been done,done,现在分词与动名词的基本形式你知道吗?,那么简单,谁不知道。是由动词末尾加-ing 形式构成,因此又叫动词的-ing 形式。V+-ing,千万要注意V-ing形式的 规则:,不能单独作谓语,没有人称和数的变化,可以有自己的宾语和状语。还有时态和语态的变化。,
2、三、功能比较,(一)不定式、动名词做主语的区别:,1、动名词充当的主语一般表示抽象的、一般的、经常性的行为。,不定式表特定、具体的行为,特别是表将来的或一次性的行为。,2、在某些结构中,做主语的动名词和不定式是特定的,一般不能随意替换:,1)在句子主语和表语同时使用非限定动词时,两者必须一致,不能交叉使用。,eg.Seeing is believing.,To learn is to use.,2)在含有no这一否定词的句子里,一般用动名词作主语,但含not的句子则用不定式作主语。,eg.It is no good drinking so much.,It is not easy to fin
3、d a job.,3)“疑问词+不定式“作主语时,不定式不能用动名词替换。,eg.What to do next hasnt been decided.,(二)不定式、动名词作宾语的区别:,1、动名词表示一般的、经常性的行为,不定式表示特定的、具体的行为。,eg.I like swimming,but I dont like to swim today.,2、一般介词后面不可用不定式作宾语,(except,but除外),eg.He has no choice but to lie down and sleep.,I hate the kind of person who does nothin
4、g but look on.,3、及物动词后一般可用动名词或不定式作宾语,但,1)advise,consider(考虑),enjoy,escape,excuse,delay,deny,dislike,finish,keep,include,miss,mind,practise,stand(忍受),suggest(建议),risk,imagine,admit,cant help+doing,2)agree,dare,decide,hope,determine,elect,choose,expect,fail,long,manage,offer,plan,pretend,promise,refus
5、e,wish+to do,4、有些及物动词可接动名词和不定式,但意义不同。,rememberforgetregret,stopgo on,try mean,needwantrequire,(三)非谓语动词作表语的区别:,eg.Our plan is to finish the work at once.,Her job was looking after the pigs.,His report is interesting.,The cups are broken.,说明其具体内容,说明其具体内容,表示其性质、特征,与主语有主谓关系,表示其所处的状态,与主语有动宾关系,多表将来,无时间性,可
6、与主语换位,表当时,表当时或过去,名 词,名 词,形容词,形容词,(四)非谓语动词作定语的区别:,总是位于其后,多位于其前,或前或后,或前或后,多有动宾关系(vi.+介词),表示其性能、用途,多有主谓关系,vt.有动宾关系,多表将来,无时间性,表进行中,多表完成,不定式,eg.a meeting to be held tomorrow,a meeting being held now,a meeting held yesterday,a sleeping car,a sleeping boy,a room to live in,a broken cup,(五)分词、不定式作补语的区别:,有主谓
7、关系,有主谓关系,有动宾关系,表已完成;一次性动作,正在进行;延续性动词,已完成,多表状态,注:、keep后只能用分词作宾补,不能用不定式,eg.Im sorry Ive kept you waiting.,2、接不带to的不定式做宾补的动词有:see,watch,notice,observe,look at,hear,listen to,feel,have,let make,(六)不定式和分词作状语的区别:,不定式作状语通常表示目的、结果、程度及形容词后状语。,分词作状语表示时间、条件、原因、或伴随方式。,eg.To get there on time I got up very early
8、.,Guided by the Party,he found the right way.,Being very small,computers are widely used.,You are brave enough to raise objections at meeting.,非谓语动词对比练习 Dec.5,20011.He wants _(clean)the house.2.The house wants _(clean).3.He needs _(repair)his bike.4.His bike needs _(repair).5.He advised _(make)an ex
9、periment.6.He advised us _(make)an experiment.7.They are considering _(travel)all over the country.They are considering how _(travel)all over the country.,to clean,cleaning,to repair,repairing,making,to make,traveling,to travel,9.Try _(knock)at the back door if no one hears you at the front door.10.
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