搜索
1第一编考研必备语法精要速览一、时态、语态时态、语态需要掌握的要点：1.以下几类动词一般不能用于进行时，同样不用于完成进行时：(1)表示感知的动词：hear,feel,notice,recognize,see,taste,smell；(2)表示意愿、情感的动词：desire,dislike,forgive,hate,like,love,prefer,refuse,want,wish,fear,love,hate；(3)表示思考、看法的动词：believe,doubt,expect,forget,hope,feel,mean,know,agree,realize,mind,recall,recollect,remember,trust,suppose；(4)表示所有、占有的动词：belongto,owe,own,possess,hold(容纳)；(5)其他动词：cost,appear,concern,contain,consist,deserve,matter,seem。如：I’dsaywheneveryouaregoingaftersomethingthatisbelongingtoyou,anyonewhoisdeprivingyouoftherighttohaveitiscriminal.(1997年考研题，belong表示归属，不用于进行式)Hewasseeingsomebodycreepingintothehousethroughtheopenwindowlastnight.(1990年考研题，see表示结果，不用于进行式)2.不用will/shall表达将来时的形式：(1)begoingto表示现在的打算和意图；(2)arrive,come,drive,go,leave,retire,return,setoff,start,takeoff等表示移位的动词的进行体表示按计划肯定要发生的将来动作；(3)beto(do)表示安排、计划、决定、命令或注定要发生的事，如：Greatereffortstoincreaseagriculturalproductionmustbemadeiffoodshortageistobeavoided.(4)beaboutto(do)表示将要(做)，如：Marlinisayoungmanofindependentthinkingwhoisnotabouttopaycomplimentstohispoliticalleaders.(5)beonthepoint/vergeof(doing)表示“马上就要”，一般不与表示将来的时间状语连用；(6)be,begin,come,depart,getoff,go,leave,return,start的一般现在时表示按日历或时刻表要发生的将来动作或事件，如：Ifyouwantyourfilmtobeproperlyprocessed,you’llhavetowaitandpickituponFriday,whichisthedayaftertomorrow.(画线部分一般不用willbe)(7)在时间、条件、让步从句中，一般现在时代替将来时，但要注意区别从句的类型，如：Idon’tknowwherehewillgotomorrow.我不知道他明天去哪儿。(宾语从句)I’lltellhimwhenyouwillringagain.我告诉他你什么时候再来电话。(宾语从句)比较：I’lltellhimwhenyouringagain.你再打电话时我告诉他。(状语从句)(8)在makesure,makecertain,see(toit)后的that从句中，谓语动词用一般现在时代替将来时，如：Seetoitthatyouincludeinthepaperwhateverquestionstheydidn’tknowtheanswertolasttime.(include不能用willinclude或其他形式)3.完成时是时态测试的重点，注意与完成时连用的句型和时间状语：(1)by/between/upto/till+过去时间、since、bythetime/when+表示过去发生情况的从句，主句用过去完成时。如：2Wehadjusthadourbreakfastwhenanoldmancametothedoor.Between1897and1919atleast29motionpicturesinwhichartificialbeingswereportrayedhadbeenproduced.(表示1919年时已发生的情况)(2)by+将来时间、bythetime/when+谓语动词是一般现在时的从句，主句用将来完成时。如：BythetimeyouarriveinLondon,wewillhavestayedinEuropefortwoweeks.Ihopeherhealthwillhaveimprovedgreatlybythetimewecomebacknextyear.(3)bynow、since+过去时间、in/during/for/over/thepast/lastfew(或具体数字)years/days/months，主句用现在完成时,但在itis+具体时间since/before这一句型中，主句更多的时候不用完成时。如：Thechangesthathowetakenplaceplaceinairtravelduringthelastsixtyyearswouldhaveseemedcompletelyimpossibletoeventhemostbrilliantscientistsattheturnofthe19thcentury.ItisfouryearssinceJohnleftschool.(4)在Itisthe+序数词/形容词最高级+that的定语从句中，谓语动词常用现在完成时。如：Itisn’tthefirsttimethatIhavefoundmyselfinanembarrassingsituation.(5)在nosooner…than…,hardly/scarcely…when/before…句型中，主句常用过去完成时。(6)其他与完成时连用的时间状语：allthiswhile,allthisyear,forsometime,sofar,already,before,just,long,yet等。4.完成进行时指动作在完成时的基础上还要继续下去。如：Thecompanyhasbeenpromisingariseinsalaryforages,butnothinghashappened.TheschoolboardlistenedquietlyasJohnreadthedemandthathisfollowershadbeendemonstratingfor.时态、语态答题思路：(1)先根据选项的区别点确定考题要点为时态，然后回到题句中寻找给出的或暗示的时间状语，缩小选择范围，进而选出正确答案；(2)根据谓语动词与句子主语或非谓语动词与其逻辑主语的关系，确定句子是主动语态还是被动语态。二、不定式1.不定式做主语(1)做形式主语的代词：不定式做主语,通常用it充当形式主语,把做主语的不定式短语后置。如：Ittookmeonlyfiveminutestofinishthejob.Tobefrank,itisagreatrelieftohavethetaskfulfilledinsoshortatime.(2)引导逻辑主语的介词：不定式的逻辑主语一般由介词for引导,但下列表示人的性格行为特征的形容词做表语时,不定式的逻辑主语则由of引导：absurd,bold,brave,courageous,careful,careless,clever,wise,foolish,silly,stupid,good,nice,kind,thoughtful,considerate,greedy,generous,honest,modest,polite,rude,cruel,selfish,lazy,wicked,wrong。如：Expertssaywalkingisoneofthebestwaysforapersontostayhealthy.It’scleverofyoutohaveinventedsuchadevice.(3)不定式做主语补足语：掌握常用不定式做主语补足语的句型。注意不定式表示的动作发生的时间，并采用相应形式。如：saidreportedthoughtbetodosth.3believedknownsupposedByronissaidtohavelivedonvinegarandpotatoes.Thebankisreportedinthelocalnewspapertohavebeenrobbedinbroaddaylightyesterday.2.不定式做宾语(1)必须接不定式做宾语的动词：掌握要求接不定式做宾语的动词：agree,afford,aim,arrange,appear,ask,attempt,choose,claim,decide,desire,determine,expect,fail,guarantee,hope,endeavor,intend,long,mean,manage,offer,ought,plan,pledge,pretend,prepare,promise,proceed,prove,resolve,refuse,request,swear,tend,try,venture,wait,wish。如：Eventhoughthechildrenpretendedtobeasleep,thenurseswerenotdeceivedwhentheycameintotheroom.注意:1)有的动词要求特殊疑问词+不定式做宾语,这类动词有：consider,discover,explain,forget,guess,know,learn,observe,remember,see,tell,understand,wonder，如：Whilestillayoungboy,Bizetknewhowtoplaythepianowellandashegrewolder,hewroteoperas,themostfamousofwhichisCarmen.2)如果该特殊疑问词在不定式中做介词宾语,介词往往置于该特殊疑问词的前面。如:Theprofessorcanhardlyfindsufficientgroundsonwhichtobasehisargumentinfavorofthenewtheory.Withoutfacts,wecannotformworthwhileopinionforweneedtohavefactualknowledgeuponwhichtobaseourthinking.(2)可以用不定式做宾语补足语(复合宾语)的动词：下列动词可以用不定式做宾语补足语(复合宾语)：advise,allow,ask,beg,cause,command,compel,enable,determine,encourage,expect,feel,find,force,hate,have,hear,help,inform,invite,let,like,make,mean,need,notice,notify,oblige,order,permit,persuade,remind,request,require,see,send,teach,tell,tempt,trouble,urge,want,warn,watch,wish。注意：画线动词后面的不定式不带to。如：Becauseoftherecentaccidents,ourparentsforbidmybrotherandmet