英语补习动词不定式在句中可充当主语表语宾语宾补定语和状语等

(learn) askillisveryimportantforeveryoneinit isnecessaryforyoungstudents aforeignItis＋adj./n.(＋forsb.／sth.)＋todo用于此句型的形容词有：easy,harddifficultpossibleimportant,impossible,necessary,good,bad,exciting,interesting,surprising等。例如： isinterestingtoythisItis foryoutochangeyourItwasimpossiblefor (complete)thetaskinsuchashort考例1：Is possibletoflytothemooninaA. B. C. D.用于此句型的名词有：pityshamepleasure,one’sduty,one’sjobfun,joygoodmanners,badmanners等。例如：Whata itisforyoutohavemissedsuchawonderfulfilm.Itis fortheyoungtogivetheirseatstotheold.Itis＋adj.＋ofsb.＋todo该句型中只能使用描述的品德、特征的形容词，如：kind,nice,wise,silly,polite,impolite,friendly,foolish,clever等。例如：Itisfriendly thefamilytotrytomakemefeelathomeintheirhouse.Howsillyitwas youtogiveupsuchagoodchance！Ittakessb.＋sometime＋todo该句型意为“做某事花费多长时间”。例如Ittookushalfanhourtoridetothetownby 动词不定式作表语常用于以下结构：Mywishjob/aim/goalis…Thenextstep/measureis…等。例如：Yourjobis thepapersintheThenextmeasure (stop)theriverfrombeing 常见的只能使用动词不定式作宾语的动词有：agree,choose,decide,hope,fail,wish,refuse,expect,manage,n,intend,pretend,promise,offer,afford,demand,arrange等。例如：They tobuildahighwaybetweenthesetwocities.She (主动提出tohelpmewhenIwasinbelievethinkconsiderfeelmake等动词可用于“动词itadj.n+todosth.”句型，it作形式宾语，而将真正的宾语动词不定式置于句末。例如：Ithink necessaryforus agoodrestafterthelongwork.Shefelt herdutyto theoldwoman. 四、作宾可后接动词不定式作宾补的动词有：advise,allow,ask,hear,order,see, want,wish,watch等。例如：Thedoctor hernotoeattoomuchsugar.I youtogotothemeetingwithme.believeconsidercount,declaredeny,feelfindguess,imaginejudgeknow,prove,realize,suppose,think等动词后可接tobe型不定式作宾补。例如：Hedeclaredhimselftobeacollegestudent.Theprovedhimtobeathief.局证实他是小偷hopedemandsuggest等动词不能后接动词不定式作宾to：“五看”(see,watchnotice,observe,lookat)“三使”(make,let,have)“两听”(hear,listento)“一感觉”(feel)。例如：Whomadehimworkallnightlong?但是，改为结构后，应补出省略的to。例如：Theysawhimbreakthewindow.He 五、作定

theHaveyougotanythingtoeat?toeat修饰anything，位于其后下列名词后常接动词不定式作定语：abilityattempt,chancecouragedecisioneffort,failure,promise,way,wish等。例如：Butshegaveupthe (出国的机会由only,first,last,next以及序数词或形容词修饰的名词后，也常接不定式作定Whowasthelast (离开theclassroomlast六、作状Wewenttheretoseeour Iamverysorrytohear Shehurriedhomeonlytofindherfather Tolookatthepicture,youwouldlike inordertosoastoTheboyworkedsohard makeupforthelost结果状语还可以使用enoughto,too…toso…asto,such…astoHegotup misstheearlyShewasinsuchahurry noticeme.七、动词不定式的时态,语态(1)时态①一般式:动词不定式一般式表示的动作发生在谓语动词之后,有时表示同时发生.如:Ihope eauniversitystudentthis ehopeWeoftenhearDick ythepianointhenextroom.( yhear时发生)②完成式:表示的动作发生在谓语动词所表示的动作之前.如:I'msorryto (keep)youwaiting.Wearetooyoungto (seen)theold③进行式:表示的动作与谓语动词同时发生.如:Theteacherhappened (correct)ourpaperswhenI

Theyseemed (discuss)somethingimportant.(2)语态如果动词不定式的逻辑主语是这个不定式所表示的动作的承受者,不定式一般要 语态形式.如It'sagreathonour (invite)toMary'sbirthdayparty.(不定式作主语)Itwasimpossibleforlosttimetobemadeup.(不定式作主语)Iwish (send)toworkinthecountry.(不定式作宾语Canyou lmewhichisthecartoberepaired(不定式作定语)Hewenttothehospital (examine).(不定式作状语在Therebe结构中,修饰主语的不定式可用 ,也可用主动.如:Therearestillmanythingstotakecareof(tobetakencareof).但有时两种形式表达的意思不同,如:Theseisnothingtodonow.(Wehavenothingtodonow.)Thereisnothingtobedonenow.(Wecandonothingnow.)不定式练习Theteachertoldthestudents inA.not B.don’t C.didn’t D.notto“MrZhang,you’dbetter toomuchmeat.Youarealreadyoverweight,”saidtheA.notto B.to C.not D.Wesawhim thebuildingandgoA.to B. C. D.Mymotheroftenasksme A.get B.got C.getting D.toget“Don’talwaysmakeMichacl thisorthat.Heisalreadyabigboy,dear.”MrBushsaidtohiswife.A. B.to C. D.Theyoungladywatchedherdaughter ayo-yoyesterdayA.toy B.ying C.to[ D.Wearetold everywhere.It’sourdutytokeepourschoolcleanandnottomakemuch B.tothrowwasteC.to D.nottoTheboywastoobusy hisfatherlastA.tohear B.towrite C.hearing D.writeLook!Howheavytherainis!You’dbetter don’tgo B.stayherewhenitC.notleaveuntilit D.nottoleaveatThereisnodifferencebetweeninthetwowords.Ireallydon’tknow A.whatto B.whichto C.tochoose D.tochooseExcuseme.Wouldyou lme buyadigitalA.what B.where C.whatI D.wherecan–Bob,wouldyouliketocometoourdinner -- A.Yes,I B.Yes,I’dlove C.No,I D.No,Idon’tTracycan’tythematchnow.please A.haveLilydo B.haveLilytodoitC.makeLilytodo D.letLilytodoYoumustbeverytired.Whynot aA.tostopto B.tostop C.stopto D.stopThereisgoing anEnglishpartythiseveninginourA.to B.to C. D.Hecoulddonothing forthebus A.wait,tocome B.wait;come C.waiting;coming D.waited;came17.Itisaproblemthatdoesn'tneed rightnow.A.to B. C.being D.tobeThere’samanatthereceptiondeskwhoseemsveryangryandIthinkhemeans A. B.to C.tohave D.havingIremember him thebikeneeded hearing,saying,to B.tohear, toC.hearing,say, D.tohear,saying,tobe---Youshouldhavethankedherbeforeyou---Imeant ,butwhenIwasleavingIcouldn’tfindherA.to B. C. D.ngRobertissaidto abroad,butIdon’tknowwhatcountryhestudiedtohave B.to B.tobe D.tohavebeenI’mgongtoXi’annextweek.Haveyouanything toyourA.to B.tobe C.tobebought D.towhenarethey intheirA. B. C.to D.Insuchdryweather,theflowerswillhavetobewateredifthey A.have B.areto C.would D.willWhenwehurriedtothestation,therehappened nobusatthatA.to B.to C. D.Ilostmywayincompletedarknessand, mattersworse,itbegantoA. B.having C. D.toAt timedoesthesalesgirlgetuplateinthemorning,thoughsheisalways agoodA.no,to B.no, C.any,to D.one,--Areyoua--No,butI A.to B.to C.to D.tobeIstoppedtolisten,andmysonseemed himself inthelivingto to B.tobeenjoying,C.tobeenjoying, D.tohaveenjoyed,havingWithalotofdifficultproblems ,thenewly-electedishavingahardA. B. C.to D.being写作常用句~~~the~est+that)+haveeverseenknown/heard/had/read,~~