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2023届高考英语二轮复习非谓语动词不定式课件
展开不定式作为一个由来已久的老知识点,我们或多或少都对其有一定的了解,但是我们从未对其进行过系统的研究,我们对其的认知也仅仅是停留再一些常见的固定搭配和句型上,然而,不定式真的只有这么点儿吗?。
动词不定式是指动词不受时态,人称,数的限定,永远都是t d 的形式。因为其不受诸多常规动词的各种约束和限定条件影响, 所以被称之为不定式。不定式是非谓语的一种形式。
主语是执行句子的行为或者动作的主体,是句子的陈述对象。
用来说明主语做了什么动作或者处于什么状态
用来描述名词,代词,短语或者从句的性质,特征范围等情况的词。
用来说明事物发生的时间,地点,原因,目的,结果,方式。条件,伴随,程度等的成分。
用来补充说明述语的结果,程度,趋向,状态,数量等的成分。
一个名词(或其它形式)对另一个名词或代词进行解释或补充说明,这个名词(或其它形式)就是同位语。同位语与被它限定的词的格式要一致,并常常紧挨在一起。
I am tall and handsme.
My father bught me a bk.
They call me mnkey.
The little by, my yunger brther, makes me angry.
T master a freign language is necessary fr a cllege student.
She prmised t give him a chance.
The teacher tld his students t pay attentin t their prnunciatin.
Yur jb is t wash dishes.
Have yu gt a pencil t draw pictures with?
I have a letter t be typed.
Sme scientists went t Germany t attend a medical cnference.
I am glad t see yu.
They searched the rm nly t find nthing.
I was asked t help him with his lessns.
1.当作表语的不定式解释主语中d的意义时,t可以省略。 All I did was (t) give him sme advice.
2. agree, demand, ask, decide, expect, hpe, want, ffer, plan, pretend, prmise, affrd, prepare, refuse, manage, fail, dare, fear, swear等动词后面均可直接跟不定式作宾语。
3. 少数介词后面可跟不定式作宾语.(1)It has n chice but t lie dwn and sleep.(2).They didn’t pen their muths except t cmplain.
4. 当句子中的主动词为d时, but, except后的动词不定式省去t; can’t but, can’t chse but, can’t help but, d nthing but, rather than, had better之后省略t.
5. ask, tell, rder, cmmand, beg, get, request, require, invite, frce, permit, cause, frbid, allw, wish, want, expect, encurage, advise, persuade, warn, wuld like等动词可以接带t的不定式作宾补。
6. think, cnsider, believe, suppse, knw, feel, find, understand等动词后常接t be + adj. 作宾补。We all knw him t be a gd player.
7. 不定式作补语,可根据需要在前加 hw, where, when, what等疑问词。Culd yu tell me hw t repair the machine?/ N ne tld me where t find him./ Please shw us what t d with these sentence patterns.
8. see, hear, watch, feel, ntice, let, make, have等后跟不定式作宾补时, 不加t, help后可加可不加.
9.作后置定语. She was the first girl t wrk ut the prblem. (主谓关系)/ He has an imprtant meeting t attend. (动宾关系)/ He keeps his prmise t write t us regularly. (同位关系)
10. 不定式作宾语,动词如果不是及物动词,后面应加必要的介词。The ice is t thin fr us t walk n.I hired a rm t live in when in the US.
11. 作目的状语,t可用in rder t或s as t代替(s as t 不能置于句首)。She gt ff the train in Beijing t see a friend./ Sme scientists went t Germany t attend a medical cnference./ They started very early in rder nt t miss the train.
12. 作结果状语。不定式作结果状语表示出乎意料的结果, 且不定式前常有nly, never, 强调惊讶或失望。V-ing作结果状语强调一种必然的因果关系。He hurried t his huse, nly t find it had been brken int.Her parents died, leaving her an rphan.
1. 疑问词+不定式 的复合结构。 When t start has nt been decided yet./ The prblem is hw t persuade him t change his mind./ We must learn what t d in face f difficulties./ I wnder if yu culd tell me hw t get t the statin.
2. 带有逻辑主语的结构。 It’s kind f yu t lend me such a beautiful necklace. /It’s imprtant fr us t master a freign language./ The first thing fr us t d is t clean the rm.
t have been dne
t have been ding
1) 不定式的一般式 不定式的一般式所表示的动作通常与主要谓语的动作同时或几乎同时发生,或是在它之后发生。 He seems t knw this./ They invited us t g there this summer. / I expect t hear frm yu sn.
2) 不定式的完成式 不定式的完成式所表示的动作在谓语所表示的动作之前发生。/ She seemed t have heard abut this matter. /I am srry t have kept yu waiting s lng.
3) 不定式的进行式 不定式的进行式表示正在进行的与谓语动词同时发生的动作。 The by pretended t be listening when the teacher lked at him. / He seems t be eating smething.
4) 不定式的完成进行式 如果不定式表示的动作在谓语动作之前一直进行,就需要用完成进行式。 We are happy t have been helping each ther these days.
5) 不定式的被动式 当不定式逻辑上的主语是这个不定式所表示的动作的承受者时,不定式一般要用被动形式。 The meeting t be held tmrrw is very imprtant.
6) 动词不定式的否定由nt或never加不定式构成。Try nt t be late again next time. / He wished us never t meet her again.
The purpse f new technlgies is t make life easier ________ it mre difficult. A. nt make B. nt t make C. nt making D. d nt make
2. I’ve wrked with children befre, s I knw what ______ in my new jb. A. expected B. t expectC. t be expecting D. expects
3. Charles Babbage is generally cnsidered _____ the first cmputer. t invent B. inventing C. t have invented D. having invented
4. The teacher asked us _____ s much nise. A. dn't make B. nt makeC. nt making D. nt t make
5. —The last ne _______ pays the meal. —Agreed! (2007全国I) A. arrived B. arrives C. t arrive D. arriving
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