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专接本英语重点语法精讲第二章非谓语动词英语中,不是用作句子谓语,而是充当其他语法功能的动词,叫做非谓语动词。非谓语动词是指由动词变化而成,仍具有动词的性质与意义,但不能作为动词使用的词。它有三种形式:不定式、分词、动名词。在句子中担任谓语的动词,叫做谓语动词;在句子中担任主语、宾语、表语、定语和状语等的动词,叫做非谓语动词。1)不能单独做谓语,但可和助动词或情态动词组成谓语。Yououghttohavebeenhereyesterday.2)具有动词的特征,可以有自己的宾语或状语。ThePartycalledonustoservethepeople.ThestudentsranoutoftheclassroomJaughingmerrily.3)连系动词的非谓语动词形式后还可以带表语。Tobefrank,yourplanisnotpracticable.由“to+动词原形”而成的不定式。由“动词原形+ing”而成的现在分词或动名词。由“动词原形十ed”而成的(包括动词的不规那么变化)过去分词。非谓语基本形式及在句中的成分一览表(以do为例)第1页共27页不定式现在分词动名词过去分词=When(While)shewaswatchingthefilm,shewasmovedtotears.(当她看电影时,她被感动得流泪了。)Nothavingbeentherebefore,hegotlostinthestreet.(原因X夫语)=Ashehadnotbeentherebefore?hegotlostinthestreet.(由于没有来过这里)他在街上迷路了。)分词所作的时间、原因、条件、让步、伴随等状语,可以改成各自的状语从句。注意:only十分词与only+不定式的区别“only+现在分词”的意思是结果只是;“only+不定式”意思是想不到、反而并没有料到的结果:Heliftedarockonlytodroponhisownfoot.(他搬起石头,想不到砸了自己的脚。)Hedied,onlyleavingdebts.(他死了,只留下一债。)③不定式与分词作宾补时的区别:不定式作宾补表示动作已经完成,强调动作发生过的这一事实,强调由此行动而产生的结果;而现在分词作宾补强调动作的过程即动作正在进行。Ifoundhimcomingintothebuilding.=1sawthathewascomingintothebuilding.(我看到他正在走进大楼。)Ifoundhimcomeintothebuilding.=Hecameintothebuilding,andIsawthat.(我看到他走进大楼。)第10页共27页注意:如在句子中出现often、seldomsusually等频度副词,表示动作的经常性,而不是动作正在进行,所以通常用动词不定式。3.不定式与动名词的区别:①从含义上不定式表示具体某一次的动作,而动名词表示比拟抽象的一般行为、习惯。Savingmoneyisimportant.(存钱是重要的。)Tosavemoneynowisimpossible.(现在存钱是不可能的。)Myfavoritesportisskating.(我最喜欢的运动是滑冰。)Thefirstthingforustodoistoimproveourpronunciation.(第一件我们要做的事是改进发音。)注意:当表语是动名词时,主语也要用动名词;当表语是不定式时,主语也要用不定式。例如:Toliveistostruggle.Seeingisbelieving.②关于不定式与动名词在用法上的几点规定。☆只能用不定式的单词或词组(句型)(1)Itisimportant,Itisnecesiary,Itisfiring,ILisadvisable,,等“1is+adj,+(forsb,/ofsb.)+不定式”的句型中;(2)在动词decide,wish,hope,promise,manage?arrange?choose?plan,第11页共27页desire,learn)want,ask)imtend)ant.tempt等后用不定式作宾语;(3)疑问词加上不定式结构,如whattodo,whentogo?wheretostay等;(4)在介词but,except,than,besides等后面,用不定式作宾语。注意:当在but,except?besides介词前有一个实意动词“do”时)用不带“to”的不定式。例如:Ihavenochoicebuttostay.(无实意动词“do”,用带“to”的不定式)Ihavenothingtodobutwait.(有实意动词“do",用不带“to”的不定式)注意:不定式不能直接做动词order,warn?invite等的宾语,只能做这些动词的宾语补足语,即ordersb.todo/warnsb.todo等。☆只能用动名词的单词或词组(句型):(1)在Itsnousedoing,Itsnogooddoing,It,sawasteoftimedoing等句型用动名词。(2)在动3司suggest,avoid,enjoy,admit,consider?escape,excuse,permit,allow?finish?mind,practise,risk,miss,advise?imagine等动词后面用动名词作宾语。(3)在词组can7thelp?can,tstand,burstout?giveup?feellike,keepon,setabout,objectto,beusedto,devoteto,lookforwardto,stickto,payattentionto,insiston,persistin等后面用动名词作宾语。注意:permit,avoid,risk,allow,advise,forbid等动词后带宾语补足语时只能用动词不定式。例如:Theteacheradvisedreadingmorebooks,(advise+宾语)Theteacheradvisedustoreadmorebooks.(advise+sb+宾语未卜足语)第12页共27页Youshouldn'triskdoingthat.(risk+宾语)Youshouldn7triskyourlifetodothat,(risk+sb+宾语补足语)(你不应该冒生命危险去做那件事。)☆既能用不定式,又能用动名词的单词有:begin,start,continue?afford?propose?cease等。☆用不定式作宾语表示具体一次动作;用动名词作宾语表示一贯爱好、倾向的单词有:hate,love,like,prefer等。☆用动名词作宾语以主动表示被动;用不定式的被动式作宾语表示被动,在含义上完全相同,这些单词是:want,need,require等。伊J:Thebikeneedsrepairing.=Thebikeneedstoberepaired.(这辆自行车需要被修理。)Thedininghallwantscleaning.=Thedininghallwantstobecleaned.(这个仓库需要被清扫。)☆不定式作宾语与动名词作宾语意义完全不同的单词:remember+todo记得要去做某事,动作还未发生。remember+doing记得做过某事,动作已经发生。且rememberdoing=rememberhavingdoneo例:Pleaseremembertolockthedoorwhenyouleave.(在离开时记着要锁门。)Iremembergivinghimabirthdaypresentlastyear.(我工己得去年给过他生日物。)forget+tod。忘记要去做某事,动作没有去做。forget+doing忘记做过某事,动作已经发生)但忘记所做的事。第13页共27页且forgetdoing=forgethavingdone例:Iforgottoposttheletter.(我忘记寄信了。)Iforgotclosingthedoor.(我忘记把门关掉这件事。)regret+tod。对要发生的事表示抱歉、遗憾,事情还未做。regret+doing对于发生过的事表示后悔。JLregretdoing=regrethavingdoneo例:Iregrettosaythereisnowineinthebottle.(我很抱歉瓶里没有酒了。)TomregretshavingtoldMarythesadnews.(Tom后,悔告诉了Mary坏消息。)stop+todo停下正在干的事,转而去做另一件事°stop+doing停下手上正在干的事。例:Tomstoppedtohavearest.(Tom停下来休息一^会儿。)Whentheteachercamein,thestudentsstoppedtalking.(老师进来时,学生们停止了讲话。)tty+todo设法、努力、尽力去做某事。tty+doing尝试做某事。例:Hetriedtowinthefirstprize.(他尽力想得第一o)Sincenooneansweredatthefrontdoor,hetriedknockingatthebackdoor.(既然没有开前门,他试着敲后门。)mean+todo打算)有意图去做某事。mean+doing意味着,意思是。例;:Ihadmeanttocallyou,butIforgotyourphonenumber.(我打算打给你)但忘了号码。)Missingthebusmeanswaitingforanotherhour.(错过这班车意味着再等一小时。)第14页共27页4.分词的独立主格结构。在分词作状语时,一个十分关键的问题是分词的逻辑主语必须与句子的主语相一致。但有时候为了表达更清楚,主语无法统一的时候,可以在分词前加上相应的逻辑主语,这种结构就称为分词的独立主格结构。分词的独立主格的基本结构是:名词(代词)+现在分词名词(代词)十过去分词例:Themeetingbeingover,theyallwentoutofthehall.(会议结束,他们都走出会堂。)Allthingsconsidered,hiscompositionisquitsatisfactory,(全部考虑过后,他的作文非常令人满意。)注意:在独立主格中使用过去分词还是现在分词,要看逻辑主语,与逻辑主语的关系是主谓关系就用现在分词;与逻辑主语是动宾关系那么用过去分词。历年真题及解析.Whitesmoke25-30metersabovethehillastheyapproachedit.A.havebeenseenriseB.hadbeenseenrisingC.wasseenriseD.wasseenrising【答案】D【精析】此题空格待填内容涉及时态、语态及动词后的补语选择不定式还是现在分词3个方面因4个选项已是被动语态,语态因素可不必考虑。再看时态,状语从句astheyapproachedit(“当他们走近它时")决定了只能用一般过去时。第15页共27页至于补语选用不定式还是现在分词,因as隐含“随着(另-事情也在发生)”的意义,所以选择现在分词更为合适。现在分词可描述生动的情景,表达“白烟升起的情景随着他们接近那座山时同时发生,因此选项D.wasseenrising是答案。.Night,thegirlstudyinginherroomswichedonthelighttodomorereading.A.wasfallingB.hadfallenC.fellD.havingfallen【答案】D【精析】此题考查非谓语动词形式用于独立结构。在12次学士学位考试中,这一现象考过两次英语独立结构可能是一般考生的难点。遇到这样的题目,考生有可能把前半句处理成句子,即选择AB、C中的一项作为答案。防止误选的诀窍是观察逗号后的局部有无and、but等连接词,没有的话前句就不可能是主语完整的句子,而应是独立结构。本句的独立结构其功能相当于时间状语,全句的意思是:“夜幕降临,在房间里学习的女孩翻开了灯继续看书。”选项D.havingfallen是答案。.fromthetopofamountain,thebeautifulpeakisamagicthatcaptureshisemotion.A.ViewingB.ToviewC.VicwD.Viewcd【答案】D【精析】在选择非谓语动词形式的时候,考生一定要注意是采用主动还是被动形式,并留意与主句主语保持一致的问题。此题描述在山顶上俯瞰四周的情景,答题时就有选择哪种语态以及与主语持一致的问题。主语是thebeautifulpeak(“美丽的山峰”),而“观看"(view)的一定是人,是山峰被人看,因此答案只第16页共27页能是D.Viewed。此题考的是非谓语动词过去分词的用法。.AfteroneBay3personcansearchforanitemthatheorsheislookingforandviewpictureoftheitem.A.registerB.registeredCbeingregisteredD.registering【答案】D【精析】此题考查register的非谓语动词形式在介词后的用法。选项A.register是不带to的不是式,可首先排除。其余3项语法上都合格,选项B.registered和C.beingregistered两者语态相同,都表的被动,选项B可以看作是省略了being,语法上是允许的。而选项D那么表示主动。register(“注册”)可用作及物(被动)和不及物(主动),前者表达“将*…注册”的意义,但笼统表达“注册”可用不及物即主动形式,因此选项D是答案。.Withoutthesun!slighttheearth'ssurface,nolifecouldexistontheearth.A.warmsB.warmedC.warmingD.towarm【答案】c【精析】此题选项A和B较容易排除,但考生有误选D.towarm的可能性。不定式常隐含“目的”之意,而本句没有这样的意义,因此选项C是答案。强化练习1.WhenIcaughthim=?Istoppedbuyingthingsthereandstarteddealingwithanothershop.A.cheatingB.cheatC.tocheatD.tobecheating第17页共27页2.Ifdratherreadthanwatchtelevision;theprogramsseemallthetime.A.togetworseB.tobegettingworseC.tohavegotworseD.gettingworse3.AftertheArabstateswonindependence,greatemphasiswaslaidonexpandingeducation,withgirlsaswellasboystogotoschool.A.tobeencouragedB上eenencouragedC.beingencouragedD上cencouragedremembertotheirparty,butItheinvitationintheoffice.A.tobeinvited;haveforgottenB.toinvite;forgetC.beinginvited;haveleftD.inviting;amleaving5.Alltheafternoonheworkedinhisstudywiththedoor_A.tolockB.lockingC.lockedD.lock答案解析A题意:当我觉察他欺骗我时,我不再在他那里买东西,而开始和另一家商店打交道。catch做“觉察”解时,后面可接“名词(代词)+现在分词”的结构,因此答案是cheatingoB题意:我宁愿看书也不愿看电视,电视节目好像越来越差了。动词seem后应按动词不定式;词组allthetime的意思是“始终,一直",相当于continuously,因此,相应的动词不定式要用进行时,即tobegettingworseoC题意:阿拉伯国家赢得独立后,特别重视扩大教育,不但鼓励男孩入学,也鼓励女孩入学。介词with引出的是分词独立结构,表示一种伴随性动作第18页共27页或补充说明,应选择beingencouraged表示被动。C题意:我记得收到了他们宴会的邀请,但我把邀请信忘在办公室了。英语中动词remember后接不定式与动名词时意思不同,接不定式时,表示“没有忘记将要做的事",如:Iremembertophoneher.我没有忘记该给她打。接动名词时那么表示“记得过去曾经做过某事",如:Irememberphoningher.我记得我给她打了。本句中“忘记,留在"英语用“leave”来表示。如:I,vedonemyhomework?butI,veleftitathome•我做了家庭作业,可是我把它忘在家里了。C题意:整个下午他锁上门在书房里工作。独立主格结构前有时有with或without,即“with/without+主语+分词”的结构)这一吉构往往置于句尾,可以做伴随状语,如:Iliketosleepwithallthewindowsclosed.我喜欢关上所有窗户睡觉。独立主格结构为:with+windows(主语)+closed(过去分词),其中过去分词closed表示主语windows是被动的和完成的。故此题选C。第二节定语从句1.引导定语从句的关系词有who,whom,whose?that,when,where,why,which等。中)只可用which,who,whose?where,when,如果指代前面整个句子,多用whicho在非限制定语》Thedogthat/whichwaslosthasbeenfound.Thosewhoareinfavoroftheproposalareexpectedtodiscussitindetailafterthemeeting.Therearemanyorganizationswhosepurposeistohelpthehomeless.Thedayswhenwehadtorelyonwool,cottonorsilkforourclotheshavenow第19页共27页

——肯主动tododoingdoing/般被动tobedonebeingdonebeingdonedone式否主动nottodonotdoingnotdoing/被动nottobedonenotbeingdonenotbeingdone/进肯主动tobedoing///行被动/式否主动nottobedoing被动/完主动tohavedonehavingdonehavingdone成式肯被动tohavebeendonehavingbeendonehavingbeendone主动nottohavedonenothavingdonenothavingdone/否nottohavenothavingbeennothaving被动beendonebeendonedone兀成肯主动tohavebeendoing进被动/行nottohave时否主动beendoing第2页共27页passed.Airmovesfromplaceswherethepressureishightoplaceswherethepressureislow.,Thisisthereasonwhyherefusedtohelpus.Hewasbomin1976,whenanearthquakestruckthecountty.Theyturnedablindeyetothesufferingofthepeople,whichenragedallofus..当引导定语从句的先行词前有all,any,no,litle,much,very,first等词,或先行词前为形容词象级所修饰时,或先行词为anything,nothing,something,everything时,从句的引导词只能用that。Theonlythingthatmatterstothechildrenishowsoontheycanhavetheirholiday.Thesearetheverypointsthatpuzzleme.Isthereanythingthatbothersyou?Thisisthebestfilmthatwaseverproducedbythecompany..as可作引导词引导定语从句)多和such,thesame连用。as引导的定语从句也可修饰整个句子既可放在先行词后,也可放在句子开头。,Suchpeopleasyouhavedescribedarerarenowadays.Theboywasrunoverbyamotor-car,asoftenhappenedinpre-liberatedShanghai.Asisoftenthecase,thegirlforgottobringherdictionary.Weareopposedtosuchideasasarenotbaseduponobjectivefacts..介词+which/whom/whose从句。①Thedriveristhemanfromwhoseroomshehadstolenthegoldwatch.第20页共27页②Languageisatoolbymeansofwhichpeoplecommunicateideaswitheachother.(3)Janespentalleveningtalkingaboutherlatestbook,ofwhichnoneofushadeverheard..代词/名词十介词+which从句。①Heisneedingabook,thenameofwhichIdon'tknow.②Infactoriesandinourdailylife,therearemanywastematerials,allofwhichcanbeturnedintouseithingsundercertaincondition..同位语从句和定语从句。在同位语从句中,引导词that不充当任何成分。ThenewsthathehasbeenadmittedbyHarvardUniversityisverypleasing.(同位语从句)•Thenewsthatyoutoldmewasreallyexciting.7.疑难句。①Heisoneofthemenwhowerechosentorepresentthegroup.②Heistheonlyoneofthoseboyswhoiswillingtotakeonanotherassignment.③Ishallneverforgetthedaywhenwefirstmet.(4)1rememberthemorningwhenhefirstcametoschool.(5)1shallneverforgetthedayswhichIspentinthecountryside.⑥Theroomwherehelivediskeptingoodrepair.⑦Thewayinwhich/thatyouansweredthequestionswasadmirable.历年真题及解析l.Hisparentswouldn'tlethimmattyanyonefamilywaspoor第21页共27页(2007-48)A.ofwhomB.whomC.ofwhoseD.whose【答案】D【精析】此题空中需填入一个关系代词来指代先行词anyone,且该关系代词要在定语从句中担任主语family的定语,因此,这个关系代词应该是所有格形式,综合考虑上述因素,只有D符合这些要求,应选D。2.Togetthejobstarted,Ineedisyourpermission.(2010-30)A.onlywhatB.allwhatC.allthatD.onlythat【答案】c【精析】当定语从句中的先行词是all,any,every,each,no,some等不定代词或被其修饰时,关系代词只能用that。应选C。【译文】要把这项工作干起来,我只需你批准即可。3.A11shelikestodonowisdrivinghercaronthehighway.(2011-32)A.thisB.thatC.whatD.which【答案】B【精析】关联词考查,先行词为如,因此后面应填that。强化练习.Withthedevelopmentoftechnology,computershavecomeintothemarketcapableofdoingverycomplicatedcalculationsatgreatspeed.A.thattheyareB.whichareC.thatisD.whichtheyare.Hissonhasbecomeadoctor,hewantedtobe.A.whoB.whichC.whereD.that第22页共27页.Hewasbecomingfat,botheredhimverymuch.A.thatB.itC.whatD.which.isknowntotheworld,MarkTwainisagreatAmericanwriter.A.ThatB.WhichC.AsD.It5.Thatistheschoollastyear.A.whichIstudiedB.atwhichIstudiedC.whereIstudiedD.inwhereIstudied6.Thegoalshehadfoughtallhislifenolongerseemedimportanttohim.A.afterwhichB.forwhichC.atwhichD.withwhich7.ItwasatoyplaneJohnboughtforhissonyesterday.A.whatB.whoC.thatD.whvJ8.1wanttousethesamedictionarywasusedyesterday.A.whichB.whoC.what.WillyoupleaseshowmethegirlnameisWeiFang?A.whomB.whoC.whoseD.which.ThereasonElainedidn'tturnupwasnotmadeclear.A.asB.whyC.whenD.which答案1.B2.B3.D4.C5.B6.B7.C8.D9.C10.B第三节状语从句第23页共27页面加逗号。①修饰主句中的动词、形容词和副词,通常由附属连词引导,与主句连接,放在句木时,一般不么②按其意义和作用可分为时间、地点、条件、原因、让步、目的、结果、方式、比拟等状语从句。.时间状语从句:是由when,as,while,after,before,since,once,til,(not)until,whenever(nomaterwhen),assumoaslongas等附属连词引导的状语从句。注意:时间状语从句中的谓语动词不能用一般将来时,只能用一般现在时表示将来发生的动作存在的状态。如:IwillcallyouassoonasIarrivethere.①Asyoulookatyourselfinamirror,you'llseenanidenticalimageofyourself.②Itisalongtimebeforeitispossibletotestthemedicineonhumanpatients.③Itwasnotuntil...(that)④NotuntilIreceivedtheletterdidIknowhehadgonetoAmerica.(5)WhenIgottotheairport,!suddenlyrememberedthatIhadlefttheticketbehind.⑥Iwasabouttoleave,whensomethingoccurredwhichattractedmyattention.⑦Wheneverwehavedifficulty,he!llcometohelpus.nosooner...than,hardly(scarcely,barely).・・when冈U做就①NosoonerhadIopenedthedoorthanthetelephonerang.②Jackhadscarcely/hardlyseenmewhenhelefttheroom.还有immediately,directly,instantly,themoment,theminute,theinstant,thesecond,everytime等:①rntenyouaboutitthemomentyoucome.第24页共27页②IgotintouchwithhimimmediatelyIreceivedhisletter.2.原因状语从句:连3司有because,as,since,for,now,that,inthat?seeingthat?consideringthat等。,Astheschoolregulationsarewrittenquiteclearly,thereisnothingmoretobeexplained.,Consideringthatthesweaterwashardmade,itwasnotexpensive.,Seeingthattheyareinexperienced,theyaredoingquiteagoodjob.注意:because,since?as,for都表原因,该如何使用。1)because语势最强,回答why提出的问题)用来说明人所不知的原因。2)当能够很明显地看出原因或人们原因,就用as或sinceo4口:Idon71likethatcoat,becausethecolorlooksterrible.(我不喜欢的原因,是其他人所不知的。)3)由because引导的从句如果放在句末,且前面有逗号,那么可以用for来代替;但如果不是说明直接原因,而是多种情况加以推断,就只能用for。如:Heisnothere,because/forhismotherisill.(他母亲病了)是直接原因。)3、目的状语从句:目的?夫语从句可由连词inorderthat,sothat,forfearthat?lest,incase等词引导。Youmustraiseyourvoicesothat/inorderthateverybodycanhearyouclearly.Telephoneusinadvanceinorderthatwemightmakethenecessaryagreements.Tcheckedalltheresultstimeandagainforfearthatthereshouldbeanymistakes.第25页共27页4.结果状语从句:结果状语从句可以由连词sothat,so...that,such...that等词引导。l.Heissohumorousthatwe'llneverforgethim.2.Sheissuchanicegirlthateverybodylikestomakefriendswithher.注意:结果状语从句常由so...that或such...that引导,如何区分这两个句型:1)首先要了解so和such后面分别跟什么词,such是形容词,修饰名词或名词词组,so是副词,只能修饰形容词或副词。2)so还可与表示数量的形容词many,much,few,little连用,形成固定搭配。如:TheboxissoheavythatIcan'tcarryit.(so+adj+that)5.让步状语从句:1)让步状语从句可由though,although弓]导。但是though,although和but不能同时使用。引导词还有:evenif,eventhough?while(尽管),nomatterwhat/how/which,however,whatever,whichever等o①Hewillnotgiveupsmokingeventhoughthedoctoradviseshimto.②Whatevertheconsequencemaybe,Iwillbeonyourside.③Howeverhardshetriedtoexplain,nobodytrustedher.④Ithasbeenthesameresult,whicheverwayyoudoit.2)由as引导的让步从句,语气较强烈,被强调的词须放在句首。①Simpleasthequestionmayseemjtisnotatallcommoninnature.②Coldasitis,thechildrenplayoutdoors.③MuchasIrespecthim]can'tagreewithhim.④Objectasyoumayjwillgoonwithmyplan.第26页共27页)whether...or(不管Whetheryoubeastudentorateacher,youarerequiredtoobeytheregulationsoftheschool..地点状语从句:地点状语从句一般用where或者wherever引导。①IwillstandwhereIcanseetheparadeclearly.(DWherevertheywent,theywerewarmlywelcomed..条件状语从句:条件》夫语从句用if,unless,solongas?providedthat,supposingthat?onconditionthat,intheeventthat,incasethat等弓I导。第27页共27页被动/在句中成分主语、宾语、定语、表语、状语、补语等除谓语之外所有成分定语、表语、状语、补语定语、表语、宾语、主语定7吾、表7•吾、状语、补语注意:•过去分词就是表示完成、被动的意义,不及物动词的过去分词只表示完成。不及物动词的不定式,现在分词和动名词没有被动式。.非谓语的否认式都是由“not+非谓语”构成。一、动词不定式由+动词原形”而成的不定式;基本形式:“to+动词原形”。有时to可省略。不能作谓语,没有人称和数的变化。既具有动词的特征-可以有自己的宾语和状语,又具有名词、形容词和副词的句法功能。不定式可以做主语、宾语、表语、定语、状语、同位语和宾语补足语。Tofinishtheworkontimeisnoteasy.(作主语)(要准时完成这项任务并不容易。)注意:动词不定式作主语时,也可以用形式主语“it,即Itzsnoteasytofinishtheworkontime.Hiswishwastobecomeateacher.(作表语)(他的愿望是成为一名教师。)第3页共27页Thereisnothingtoworryabout.(作定语)(没有什么可以担忧的。)Herantocatchthebus.(作》失语)(他跑着去赶车。)Iwanttoseethenewfilm.(作宾语)(我想要去看这部新电影。)Heaskedmetoopenthedoor.(作宾语补足语)(他要我把门翻开。)注意:①动词不定式在作let,make,see,hear,feel,watch等使役、感观动词的宾语补足语时,不定式不带“to”。例:Weoftenhearhersinginthenextroom.(我们经常听到她在隔壁房间唱歌。)但上述动词用于被动语态的句子中,动词不定式变成主语补足语,这时必须带“to”。伊J:Hewasheardtosinginthenextroomeverymorning.(每天早晨他,总是被听到在隔壁房间唱歌。)②动词不定式作宾语时,也可用形式宾语“it”。例:Theyfounditimpossibletogeteverythingreadyintime.(他们发现及时准备好一切是不可能的。)动词不定式也可以和疑问词who?what,which?whether?when,how,where等连用)构成不定式短语。Howtogettheticketsisaquestion.(作主语)(如何获得票子是个问题。)第4页共27页Iwonderwhichonetochoose.(作宾语)(我不知选哪一个。)Thequestioniswhomtosendtheletter.(作表语)(问题是谁去送信°)for十名词(代词)+动词不定式的复合结构。ItisimportantforustolearnEnglish.(作主语)(对我们来说学英语是重要的0)Itisforyoutodecide.(作表语)(由你来决定。)Idon'tthinkitisgoodforyoutoleavenow.(作宾语)(我认为你现在离开并不好。)Ihaveboughtthebooksforyoutoread.(作定语)(我已经把你要读的书买来了。)Theyhandedintheexercisesjustintimeforthetenchertocorrect.(作力失语)(他们及时交了作业以便教师批改。)二、分词的主要用法分词分为现在分词和过去分词。现在分词与过去分词的区别在于;现在分词表示主动的,正在进行的动作,而及物动词的过去分词表示已经完成且被动的动作,不及物动词的过去分词只表示完成的意义。Doyouknowthebuildingbeingbuiltdownthestreet?(作定语)(你知道在街的那头正在建造的大楼吗?)Thisisoneofthebuildingsbuiltinthe1960s.(作定语)第5页共27页(这是20世纪60年代造的大楼之一。)注:分词作定语可转换为定语从句。Thenewsissurprising.(作表语)(这消息令人惊讶o)Wearesurprisedatthenews.(作表语)(听到这消息我们感到惊讶O)Weheardhersinginginthenextroom.(宾语未卜足语)(我们听到她正在隔壁房间唱歌。)I,mgoingtohavemyhaircut.(宾语未卜足语)(我将去剪一下头发。)注:宾语补足语在被动语态中就是主语补足语。如:Shecanbeheardsinginginthenextroom.(While,When)Walkingalongthestreet,hemetwithhisoldfriend.(》夫语)(当他在路上走时,遇到了他的老朋友。)Seenfromthehill,theparklooksverybeautiful.(状语)(从山顶看,这公园非常美丽。)分词作状语可转化为状语从句或并列句。注意:.分词作定语,如果是单个分词,那么放在所修饰的名词之前,如:spokenEngli

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