Non-Finite-Verbs非限定动词、非谓语动词.ppt
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1、Non-Finite Verbs非限定动词又称非谓语动词? Questions ?l为什么称为非限定动词? 不受主语的人称和数的限制 l为什么称为非谓语动词? 不能单独作谓语l有几种形式? 不定式(infinitive) 动名词(gerund) 现在分词(present participle) 分词(participle) 过去分词(past participle) ? Questions ?l可作什么句法成分?主语宾语定语补语状语不定式+动名词+-分词-+Exercise & ExplanationlGap-Filling: _ (try) to forget ones past is im
2、possible (Trying/ To try)u动名词和不定式都可充当句子的主语。在多数情况下,选择动名词还是不定式作主语对句意影响不大。抽象,有普遍意义的或概念化的动作常用动名词。u有些动名词已几乎成为了表示动作的名词,如:reading,writing,swimming,smoking,jogging,learning,cooking。lTrue or False: A. It is impossible to try to forget ones past B. It is impossible trying to forget ones past (A. True B. False
3、)u句型:It is (im-)possible to do sth.lOF or FOR A. Its difficult _ us to get together . B. Its thoughtful _ your mother to get the food ready A. for B. ofu句型:It is + adj. + for sb. to do sth. 这类形容词有:easy, difficult, hard, impossible, possible, necessary, important, essential, easy, useless, convenient
4、u句型:It is + adj. + of sb. to do sth. 表示一个人的特性而不是动作本身的性质,用of引导不定式的逻辑主语,这类形容词包括:good, kind, clever, foolish, stupid, silly, careless, nice, polite, right, bad, wrong, cruel, generous, unselfish, thoughtful, considerate, wise等。E.g. Its very kind of you to come to see me. = You are very kind to come to
5、see me. Its clever of this policeman to pretend to be a driverExercise & ExplanationlSentence Completion A. It is no use _ (ask) me for help. B. It is of no use _ (cry) over spilt milk.A. asking B. to cryu句型:It is no use + doing (sth.) Its no use (good)后接动名词,表示“是没有用的” Its not much good worrying for
6、nothing. u句型:It is of no use + to do (sth.)Exercise & ExplanationlTrue or False? The boy sings delighted his parents Falseu 动名词的逻辑主语与主句的主语不同时,须用所有格表示: The boys singing delighted his parentsl比较: A. He insisted on paying the money B. He insisted on my paying the money A. 他坚持付钱。和主句主语相同 B. (他坚持要我付钱。) 和主
7、句主语不同,须用所有格my表示付钱的人lTranslation C. 约翰缺席带给我很多的麻烦。 _ gave me a lot of trouble D. 他很有钱是事实。 _ is true E. 我不喜欢他们说别人的坏话。 I dont like _ ill of others. F. 我很高兴考完试了。I am glad of _C. Johns being absent D. His being rich E. their (them) speaking F. the examination being overu动名词复合结构当主语时,必须用所有格;但当宾语时可用所有格或宾格 动名
8、词的逻辑主语是无生命事物时,不必用所有格,用“主格”即可 Exercise & ExplanationlSentence Completion A. My assignment is _ (write) a report on our experiment B. Her job is _ (wait) on tables (当服务员)。A. to write B. waiting不定式表示相对具体的动作或行为,而动名次表示相对抽象、普遍或经常性的情况lSentence Completion A. What you must do today is _ (find out) who was in
9、volvedB. The only thing I did yesterday was _ (finish) my essayC. The best way _ (memorize) new words is to learn to use themD. My decision is for them _ (undertake) the projectA. (to) find out B. (to) finish C. to memorize D. to undertake 以上句式中经常用不定式A、B两种情况中,to也可省略,条件是主句中有实义动词do出现做谓语。 补语l不定式、动名词和分词
10、都能充当表语(主语补语),难点是现在分词与过去分词之分。l分词作表语时具有形容词性质,说明主语的状态或特点。l分词作表语主要限于表示人内心活动的词,也就是情感、情绪、感觉之类的词, 主要有:please,delight,surprise,shock(震惊),astonish(惊讶),disappoint,touch(感动),move,encourage,discourage,tire(累),exhaust(使人疲倦),bore(使人心烦),puzzle(困惑),confuse,worry,excite,frighten(使害怕),scare,terrify,amuse,amaze(使惊讶),c
11、omfort,relax,refresh,relieve,hurt,irritate(使生气),interest,fascinate。这些词均为及物动词。 English is interesting to me. I was tired.lSentence CompletionlYour result of the test is _(disappoint). lIm _ (disappoint) with your study. lThe girl was too _ (frighten) to movelThe scene of the accident was _ (frighten)
12、. A. disappointing(令人失望) B. disappointed(对你的成绩表示失望) C. frightened D. frightening现在分词与过去分词的区别在于前者表示“给人的感觉使人感到”而后者表示主语本身的感受。所以主语肯定是有生命的。公式是: 主语的感觉用ed,主语给别人的感觉用ing。 l动名词(gerund)? 分词(participle)? A. a sleeping car B. a sleeping baby C. a visiting card D. a visiting professorA. gerund: a car for sleeping
13、 B. participle: a baby who is sleeping C. gerund: a car for visiting D. participle: a professor who is visiting(客座教授)动名词表示“用途或目的”,a washing machinea writing brush(毛笔),a dining hall,a swimming pool 分词表示“动作或状态”。Exercise & ExplanationlTranslationa developing countrya developed countryfalling snowflakes
14、fallen leavesthe changing worldthe changed citya moving objecta broken objecta sleeping babya deserted babyfreezing colda frozen riveru 现在分词表示正在进行或主动的动作u 过去分词表示完成或被动的动作 lChoice A. birds (to fly, flying) above the forest B. a nation (to belong, belonging, belonged) to Asia C. children (playing, playe
15、d) games outside D. a game (playing, played) worldwideA. Flying (正在进行) B. Belonging (主动的性质) C. Playing (主动) D. played (被动)lSentence CompletionE. a hospital _ (重建之中的医院)F. the hospital _ last year (去年建的医院)G. the hospital _ next year (明年建的医院)H. workers _ this hospital (医院的建设者)E. being rebuilt F. built
16、G. to be built H. buildingu 考试的难点在于分词词组和不定式作定语。u充当定语的现在分词词组表示正在进行某种活动或主动的性质,分词被动式表示一个正在进行的被动动作u过去分词表示完成或被动,u不定式的定语用途之一是表示要进行的动作。 lSentence CompletionA. There is hardly anything _ (do)B. She has nothing _ (do) all dayC. The first person _ (taste) crabs is thought to be brave A. to do B. to do C. to t
17、aste 不定式的定语功能还表现在下列场合:u have sth to do(及物动词) there is sth to do (to be done) u first,last和best后 She is always the last to leave the office The best thing for you to do is take it to courtlSentence CompletionA. Failure _ (be) punctual is a sign of disrespect(不遵守时间是对别人不敬)B. We appreciate your effort _
18、 (improve) peoples life(我们赞赏你们为改善人民生活做出的努力)。 A. to be B. to improveu有些动词要求不定式充当其宾语,这些动词的名词形式往往接不定式充当定语。这些词有: hope,wish,failure,aim,determination,decision,refusal,plan,desire,urge,impulse, compulsion,choice,endeavor(努力),demand,expectation,permission,tendency,inclination(倾向),其它类名词有:willingness(愿意),rel
19、uctance(不愿意),effort(努力),attempt(尝试),ability,power(能力),freedomExercise & ExplanationlGap-FillingA. Cancer is not easy _ (cure).B. She is easy _ (talk).C. This house is comfortable _ (live)D. This boss is hard _ (get along).E. English is difficult for me _ (learn)A. to cure B. to talk to C. to live in
20、 D. to get along with E. to learn (但不能说:Im difficult to learn English. )u不定式作定语时,若主语与动词有动宾关系(所修饰的词为其逻辑宾语时),必须是及物动词,不及物动词要接相应的介词。lGap-FillingA. She is willing _ (look after) my daughter during my absenceB. This team is likely (unlikely) _ (defeat) its rivalC. They are certain _ (win) the gameA. to lo
21、ok after B. to defeat C. to winu有些形容词必须接不定式结构,可作为句型来记: adj. + to do sthD. Im sorry _ (give) you trouble.E. She cant be more anxious _ (know) what happened to her husbandD. to give E. to knowu这些句子中的不定式有自己的宾语,其它用于此句式的形容词有上述表达感觉的过去分词,如:surprised,pleased, 还有sorry,happy,lucky,ashamed,proud,anxious,eager,
22、afraid,curious,hesitant等表示情感或心情的词。 宾语lGap-FillingA. I didnt expect _ (meet) you hereB. The young tend _ (be) more open-mindedC. Dont pretend _ (know) when you dontD. Later,he decided _ (apologize) to her for his rudeness A. to meet B. to be C. to know D. to apologize uV + to do句式u要求不定式充当宾语的词主要有: aim
23、,intend,tend,agree,afford,fail,plan,decide,hesitate,hope,wish,promise,volunteer(自愿),learn,manage,choose,want,determine (resolve)(决心),expect,long (渴望),refuse,decline,endeavor,seek,pretendlGap-FillingA. I enjoy _ (work) with those who are humorousB. Would you mind (explain) it again?C. They are not on
24、 good terms,so they try to avoid _ (meet) each otherD. Have you finished _ (read) this novel?A. working B. explaining C. meeting D. readinguV + doing句式u必须接动名词的动词包括:admit,anticipate(预料),appreciate(感谢,赞赏),avoid,consider,delay,deny(否定),dislike,enjoy,escape,finish,forgive,keep,mind,postpone,practise(练习)
25、,suggest,risk,cant help,stand (tolerate)(忍受),feel likeu有些带to的词组中to是介词,小心出错;不能用动词原形。be (get) used to doing(习惯于),be accustomed to(习惯于),prefer sth to sth,be devoted to,be opposed to,object to,take to(喜欢上),look forward to(盼望),give up oneself to,be reduced to(沦为),put ones mind tol下列词接不定式和动名词意义相同: prefer,
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