语法专题动词todo不定式.docx
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语法专题动词todo不定式.docx
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语法专题动词todo不定式
动词不定式
动词不定式在语法功能上可作主语、宾语、表语、定语和状语。
不定式作以下成分:
Ⅰ作主语
1.Toseeistobelieve.
2.TegetcontactwithhisfamilyinTaiwanmadehimextremelyhappysincethey
separatedmorethan40yearsago.
3.Tofinishthattaskinsuchashorttimeisreallyachallenge.
(1)由it作形式主语,而将不定式放到后面。
如:
Itisreallyachallengetofinishthattaskinsuchashorttime.
(2)It'sforsbtodo.和It'sofsbtodo.
Ⅱ作宾语
(1)Vt.+todo:
只能跟动词不定式的动词:
affordagree,aim,appear,ask,believe,claim,
decide,demand,desire,determine,expect,fail,happen,hesitate,hope,intend,learn,long,manage,offer,pretend,promise,prepare,refuse,seek,want,wish,,
Shepretendedtobereadingwhenhermothercamein.
(2)疑问代(副)词+todo:
Hedoesnotknowwhentostart.
(3)6123结构
Sheconsidersitnecessarytomakefriendswithhim.
Ⅲ做表语
(1)放在be动词后面,形成表语。
例如:
Toseeistobelieve.
(2)主语是以ambition,duty,hope,idea,job,plan,problem,purpose,thing,
wish等名词为中心的短语,不定式表语对主语起补充说明作用:
Hisambitionistostudyabroadinthenearfuture.
(3)主语是一个由what引导的从句时,用作表语的不定式说明what的具体内容
WhatIwantistogototheparktomorrow.
Ⅳ作定语
不定式作定语相当于一个定语从句,它修饰以下几类名词:
⑴由动词转化而来的名词attempt,claim,decision,plan,promise,
intention,need,resolution,tendency,wish,failure,threat,,
Anotherattempttoclimbthemountainwillbemadenextmonth.
Inhisspeechheexpressedhisdeterminationtoachievethegoal.
⑵修饰抽象名词:
ability
,reason,right
,time
,chance
,way,anxiety
,
patience,willingness,ambition,effort
Theabilitytoleadateamismoreandmoreimportant.
⑶修饰代词
something,
anything
,
everything
,
nothing.
不定式做后置
定语。
Doyouhaveanythingtosend?
Doyouhaveanythingtobesent?
⑷序数词或最高级only,last,next,后常用不定式作定语。
Jimistheonlystudenttoanswerthequestioncorrectlyinhisclass.
Youarethelasttoundertakethebloodtest.
(5)表“将来实现”
Themeetingtotakeplaceisveryimportantforthecompany.
Ⅴ作状语
(1)目的
todo,onlytodo(仅仅为了),inordertodo,soastodo,soasto,
enoughto,tooto
Icomehereonlytosaygood-byetoyou.我来仅仅是向你告别。
(2)结果,表示没有预料到的或事与愿违的结果HehurriedtoschoolonlytofinditwasSunday.
(3)原因
Shewepttoseethesight.
不带to的不定式:
(1)感官动词,
使役动词have,let,make
1.Ioftenheardhimsaythathewouldstudyhard.
2.Imusthavehimseehisownmistakes.但是,当这类结构转换为被动语态时,
(2)hadbetter,wouldrather,may/mightaswel,ratherthan,cannotbutShecouldnotbutcriticizehisfoolishbehaviour.
(3)在but,except后,有“do”无“too”
1.Hewilldoanythingexceptworkonthefarm.
2.Ihadnochoicebuttowaittillitstoppedraining.
(4)“不得不”:
cannothelpbut,cannotchoosebut,cannotbut
donothingbut,havenothingtodobut
Icannotbutadmirehiscourage.
(5)whynot
Whynotaskyourteacherwhenyoudon'tunderstandthemeaning?
不定式的时态语态:
时态
主动
被动
一般式
Todo
Tobedone
完成式
Tohavedone
Tohavebeendone
进行式
Tobedoing
完成进行式
Tohavebeendoing
1.Shefeelsrelaxedtohavefinishedwritingherthesisbeforethedeadline.
2.TheVikingsarebelievedtohavediscoveredAmerica.
3.Whenyoucalledmelastnight,Ihappenedtobeworkingonthecomputer.
4.Thesnowwassupposedtohavebeenblownoffthemountain.
总结有关todo的句式
一、Ittakessb.sometime(money)todosth.
二.It’stimetodoth.s
三.主语+be(not)+adj.+enoughtodosth.
I’mtallenoughtoreachthetopofthetree.
四.sb.+beready+todosth.
Heisalwaysreadytohelpothers.
五.It’s+adj.+for/ofsb.todosth.
It’sdangerousforchildrentoplayfootballinthestreet.
It’sverykindofyoutohelpme.
六.主+wouldlike/lovetodosth.喜欢(想做某事)
七.hadbetterdosth.(最好做)
It’sverycoldoutside,you’dbetterputonyourcoat.
You’dbetternotspeakwhenyourmouthisfulloffood.
八.Whydon’tyouV=Why+not+V
Thisbookisabithard,whynotreadsomethingeasier?
It’swarmhere,whydon’tyoutakeoffyourcoat?
九.prefertodoratherthando
十.It’sone’sturntodosth.
十一.主语+be+形容词+todosth
不定式专项练习
1.Thiscompanywasthefirst____portableradiosaswellascassettetaperecordersintheworld.
A.producing
B.toproduce
C.havingproducedD.produced
2.
Thepurposeofnewtechnologyistomakelifeeasier,____itmoredifficult.
A.notmaking
B.notmake
C.nottomakeD.nortomake
3.
Helenhadtoshout______abovethesoundofthemusic.
A.makingherselfhear
B.tomakeherselfhear
C.makingherselfheard
D.tomakeherselfheard
4.Idon’tknowwhetheryouhappen_______,butIamgoingtostudyintheU.S.AthisSeptember.
A.tobeheard.B.tobebearing
C.tohear
D.tohaveheard
5.
Thenewsreportershurriedtotheairport,only___thefilmstarshadleft.
A.totell
B.tobetoldC.telling
D.told
6.
Youweresillynot___yourcar.
A.tolock
B.tohavelocked
C.locking
D.havinglocked
7.
Theteacheraskedus___somuchnoise.
A.don’tmakeB.notmake
C.notmaking
D.nottomake
8.
Anarmyspokesmanstressedthatall
thesoldiershadbeenordered_____clear
warningsbeforefiringanyshots.
A.toissue
B.beingissued
C.tohaveissued
D.tobeissued
9.I’dratherhavearoomofmyown,howeversmallitis,than_______aroomwithsomeoneelse.
A.toshare
B.tohaveshared
C.share
D.sharing
10.
Thebankisreportedinthelocalnewspaper_________inbroaddaylightyesterday.
A.robbedB.tohavebeenrobbedC.beingrobbedD.havingbeenrobbed
11.
Anumberofpaintingsinthecastlearebelieved________inafire.
A.beingdestroyed
B.havingbeendestroyed
C.tobedestroyed
D.tohavebeendestroyed
12.
Themeeting_______nextweekissuretobeagreatsuccess.
A.totakeplace
B.tobetakenplace
C.tohavetakenplace
D.beingtakenplace
13.
Asaresultofmylaziness,Ifailed________myworkintime.
A.andfinished
B.tofinish
C.andfinishing
D.tofinished
14.
Iamsorry______writtenyoualetteratthetime.
A.tohavenot
B.tonothave
C.nottohave
D.nothaving
15.
Willyoulendhimamagazine____?
A.toberead
B.forreading
C.toread
D.heread
16.
Hecoulddonothingbut_______forthebus_________.
A.wait,tocome
B.wait;come
C.waiting;coming
D.waited;came
17.Itisaproblemthatdoesn'tneed________rightnow.
A.tosolve
B.solving
C.beingsolved
D.tobesolving
18.There’samanatthereceptiondeskwhoseemsveryangryandIthinkhemeans
_______trouble.
A.makingB.tomakeC.tohavemadeD.havingmade
19.Iremember_______him_______thebikeneeded__________.
A.hearing,saying,torepair
B.tohear,say,torepair
C.hearing,say,repairing
D.tohear,saying,toberepaired
20.
-Youshouldhavethankedherbeforeyouleft.
-Imeant___,butwhenIwasleavingIcouldn
’tfindheranywhere.
A.todo
B.to
C.doing
D.doingso
21.
Robertissaidto_____abroad,butIdon
’tknowwhatdcountryin.hestudie
A.tohavestudied
B.tostudy
B.tobestudying
D.tohavebeenstudying
22.
I’mgongtoXi
’annextweek.Haveyouanything__________toyourparents?
A.totake
B.tobetaken
C.tobeboughtto
D.tobuy
23.whenarethey_____intheirplan?
A.hand
B.handed
C.tohand
D.give
24.
Insuchdryweather,theflowerswillhavetobewateredifthey_____________.
A.havesurvived
B.aretosurvive
C.wouldsurvived
D.willsurvive
25.
Whenwehurriedtothestation,therehappened____nobusatthattime.
A.tohave
B.tobe
C.having
D.being
26.
Ilostmywayincompletedarknessand,____mattersworse,itbegantorain.
A.made
B.havingmade
C.making
D.tomake
27.At___timedoesthesalesgirlgetuplateinthemorning,thoughsheisalwaystoobusy____agoodrest.
A.no,totake
B.no,takingC.any,totake
D.one,taking
28.
--Areyouastudent?
--No,butIused_____.
A.tobe
B.towas
C.todo
D.tobea
29.
Istoppedtolisten,andmysonseemed_____himself____inthelivingroom.
A.toenjoy,toshutB.tobeenjoying,shutting
C.tobeenjoying,shutD.tohaveenjoyed,havingshut
30.Withalotofdifficultproblems____,thenewly-electedpresidentishavingahardtime.
A.settledB.settlingC.tosettleD.beingsettled
31.We’releavingatsixo’clock,andhope_____mostofthejourneybylunchtime
A.todoB.tohavedoneC.tomakeD.tohavemade
32.Thestudyofthewildworldmayhelptomaketheworldeasier_________.
A.understoodB.tobeunderstoodC.tounderstandD.understand
33.Whowillyouget____theprojectforus?
A.designB.todesignC.designedD.designing
34.ItissaidinAustraliathereismorelandthanthegovernmentknow__________.
A.itwhattodowithB.whattodoitwith
C.whattodowithitD.todowhatwithit
35.Wearenotallowed______outdoorswithsomeotherchildren.
A.playingB.tobeplayingC.toplayD.beplaying
36.Allenhadtocallataxibecausetheboxwas____tocarryallthewayhome.
A.muchtooheavyB.toomuchheavyC.heavytoomuchD.tooheavymuch
37.Shefeelssostronglythateachofusshouldhavearole_____inmakingtheearthabetterplacetolivein.
A.tohavepla
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