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语法回顾篇:专四语法考点虚拟语气、情态动词、非谓语动词、复合句、倒装、小语法(省略,时态,反义疑问句,代词,强调句,主谓一致,冠词,形容词及副词)、as的特殊用法。专四英语语法考点串讲之一虚拟语气一般说来,有下列几种考点需要考生注意(十考点及两备考点)考点1.与现在事实相反从句谓语动词用did(be用were),主句谓语动词would(should,could,might)+do;考点2.与过去事实相反从句谓语动词用haddone,主句谓语动词用would(should,could,might)+havedone;例如:43.I_________thepartymuchmoreiftherehadn’tbeenquitesuchacrowdofpeoplethere.A.wouldenjoyB.willhaveenjoyedC.wouldhaveenjoyedD.willbeenjoying49.Allofuswouldhaveenjoyedthepartymuchmoreifthere_________quitesuchacrowdofpeoplethere.A.weren’tB.hasn’tbeenC.hadn’tbeenD.wouldn’t考点3.与将来事实相反,
从句谓语动词用:did(should+do或were+todo),主句谓语动词用:would(should,could,might)+do。例如:43.Ifyourcar___anyattentionduringthefirst12months,takeittoanauthorizeddealer.(2023)A.shallneedC.wouldneedB.shouldneedD.willneed考点4.时态的交叉现象,也就是主句与从句的动作发生在不同的时间段例如:Ifyouhadgonetoseethedoctor,youwouldbeallrightnow.你要是早去看病,你现在就没事了。考点5.虚拟条件句if可以省略,但从句的语序要用到装,即将were,had或should移至主语的前面形成倒装,但否认词not不前移。例如:65.___,hewouldnothaverecoveredsoquickly.(2023)A.
Hadn'thebeentakengoodcareofB.
HadhenotbeentakengoodcareofC.
HadnothebeentakengoodcareofD.
Hadhebeennottakengoodcareof考点6.insist(一个坚持);ordercommand(两道命令);suggest,advise,propose(三条建议);ask,require,request,demand(四点规定)及相应的名词的从句,谓语要使用:should+动词原形或动词原形ﻫ例如:58.Itwasrecommendedthatpassengers___smokeduringtheflight.(2023)A.
notB.neednotC.couldnotD.wouldnot考点7.Itis+advisable,essentialimportant,,imperative,incredible,等等相关的从句,ﻫ谓语要使用:should+动词原形或动词原形例如:46.Itisimperativethatstudents____theirtermpapersontime.(2023)A.handinB.wouldhandinC.havetohandinD.handedin考点8.itishigh(about)timethat的结构中,从句使用一般过去式例如:54It’shightimewe__cuttingdowntherainforests.(2023)AstoppedBhadtostopCshallstopDstop考点9.muchas尽管,虽然,引导让步状语从句,从句中用wouldhavedone表达假设,可以是说话人的语气变得十分委婉,真诚。例如:52.Muchas____,Icouldn’tlendhimthemoneybecauseIsimplydidn’thavethatmuchsparecash.(99年)A.IwouldhavelikedtoB.IwouldliketohaveC.IshouldhavetolikeD.Ishouldhavelikedto考点10.ifonly表达要是…就好了相称与wish,asif/asthough的用法。
与现在事实相反:动词过去式ﻫ与过去事实相反:had+done
与将来事实相反:could/would+do例如:52.IfonlyI__playtheguitaraswellasyou!(06年)AwouldBcouldCshouldDmight备考1.wouldrather或wouldsooner后跟宾语从句,从句中使用一般过去式或过去完毕式分别表达对现在或过去的虚拟,表达“宁愿某人作某事”例如:Themanagerwouldratherhisdaughter____inthesameofficenow.ﻫA.hadnotworkedB.nottowork
C.doesnotworkD.didnotwork备考2.用于lest,forfearthat引导的状语从句。在lest,forfearthat等引导的状语从句中,通常用"(should+)原形动词"这一虚拟语气形式例如:Themadmanwasputinthesoft-paddedcelllesthe________himself.
A.injureB.hadinjuredC.injuredD.wouldinjure专四语法考点串讲之二情态动词考试中,情态动词部分重点测试以下内容:ﻫ(1)情态动词+行为动词完毕式ﻫ(2)某些情态动词的特殊用法
1.musthavev-edﻫmusthavev-ed表达推测过去某事“一定”发生了。其否认形式为:can’t/couldn’thavev-ed,表达过去不也许发生某事。例如:ﻫSincetheditchisfullofwater,itmusthaverainedlastnight.2.couldhavev-ed表达推测过去某动作“很也许”发生了3.may/mighthavev-ed表达推测过去某事“也许”发生了.may比might表达的也许性在说话人看来稍大些。4.oughtto/shouldhavev-ed和oughtnotto/shouldn’thavev-ed用于对已发生的情况表达“责备”、“不满”,分别表达“本应当…”和“本不应当…”表达应完毕而未完毕的动作用于完毕时中的否认句,表达不应完毕但已做的动作5.needn’thavev-ed表达过去做了某事,但没有做的必要,意为“本没必要…”。例如:Youneedn’thavewakenmeup;Idon’thavetogotoworktoday.注意:didnotneedtodo动作并没发生例:Ididn’tneedtogetupearly,soIgotupuntil9a.m.*特殊用法(1)can‘t表达“不也许”,maynot表达“不可以”,mustn’t(mustnot)表达“不许可严禁”,needn't(neednot)表达“不必”,darenot+动词原形表达“不敢”(2)must表推测的否认现在式用can’t,过去式用couldn’t(3)MayI/we…?这一类疑问句的肯定回答为Yes,please.或Certainly;否认回答为Pleasedon’t.或No,youmustn’t.例如:
“Mayweleavenow?”“No,youmustn’t.Youhaven’tfinishedyourhomeworkyet.”(4)needI/we…?这一类疑问句的肯定回答为Yes,wemust;否认回答为needn’t(5)在回答must引起的问题时,假如是否认的答复,不能用mustn’t,而要用needn’t或don’thaveto(6)May/mightaswellmay……but….(表转折)(7)Iwishtogohomewithyou,mayI?(8)Dohelpyourselftohavefruit,won’tyou/willyou?(表达一种委婉的请求)*情态动词短语的使用wouldliketodo…wouldratherdo…wouldrather+从句wouldprefertodo...hadbetterdo...*情态动词:will(乐意),shall(将),must(必须),can,may,would,should(应当),might,could,oughtto,usedto(过去经常),need(需要),dare(竟敢),haveto(不得不)*dare,need也可作一般(行为)动词*情态动词一般用法的否认:mustn’t不准,严禁,不要can’t(couldn’t)不会;不能;may(might)not不可以;needn’t没必要(=don’thaveto)usednot/usedn’tto或didn’tuseto…过去不…darenot不敢*情态动词推测用法Must一定,肯定can’t(couldn’t)不也许Can/could也许Can’t(couldn’t)不也许may/might“也许,也许”May(might)not也许不,也许不*推断用法should/oughtto“按理应当,应当是;shouldn’t不应当(=oughtnotto)*情态动词+have+done结构表达对过去动作的推测musthavedone:对过去的肯定推测,译作“一定做了…”,只能用于肯定句中。其否认形式为can’t/couldn’thavedoneItmusthaverainedlastnight,fortheroadwasquitemuddycan/couldhavedone:对过去的也许性推测,译作“也许做了…”。只能用疑问句中Can/Couldhehavesaidit?他也许说过那种话吗? may/mighthavev-ed:对过去的也许性推测,译作“也许能,有也许。It’stoolate.Ithinkhemayhavegonetobed.*情态动词+have+过去分词结构表达轻微的责备和后悔肯定:过去应当做而没有做;否认:过去不该(不必)做而做了。⑴might/could+have+过去分词:“本来可以,早就应当”(只用于肯定句,且不能用may,can)ﻩYoucouldhavetoldmeyouweregoingtobelate!.你应当早告诉我你会晚到的!⑵should(oughtto)+have+过去分词:“本应”(没做)shouldnot(oughtnotto)+have+过去分词:“本不该”(做了)Youshouldnothavehandedinyourcompositionyesterdaymorning.你本不应把作文交了。Youshouldhavebeenhereearlier.你应当早点来才对。3.needn't+have+过去分词:“本不必,本不须”(need只用于否认句)(做了)Youneedn'thavewokenherup.It'sonlysix.你其实不必叫醒她。现在才六点。注意:didnotneedtodo动作并没发生(没做)例:Ididn’tneedtogetupearly,soIgotupuntil9a.m.*八大注意点1.在以could,might表达征询对方意见或表达请求时,回答应相应使用can,may—MightIwatchTVaftersupper?—Yes,you________.A.mayB.mustC.mightD.can2.MayI/we…?这一类疑问句的肯定回答为Yes,please.或Certainly;否认回答为Pleasedon’t.或No,youmustn’t.例如:ﻫ“Mayweleavenow?”“No,youmustn’t.Youhaven’tfinishedyourhomeworkyet.”3.needI/we…?这一类疑问句的肯定回答为Yes,wemust;否认回答为needn’t4.在回答must引起的问题时,肯定must;假如是否认的答复,不能用mustn’t,而要用needn’t或don’thaveto5.Iwishtogohomewithyou,mayI?6.Dohelpyourselftohavefruit,won’tyou/willyou?(表达一种委婉的请求)7.Shall用于第三人称,表达许可,允许8.let’sdothisjob,shallwe?Letusdothisjob,willyou?9.should也表达惊讶的语气,例如:Iwasshockedthatsheshouldhavesaidsuchathingtoyou.(她居然对你说那样的话,…)*四大特殊结构1.may/mightaswell+动词原形”意为“最佳,满可以,倒不如”,相称于hadbetterYoumayaswelldoitatonce.2.maywell+动词原形”是一种常见的结构,意为“(完全)能,很也许”Hemaywellbeproudofhisson.他大可为儿子快乐。3.cannot…too/enough表达“无论怎么……也不算过度”、“越……越好”Youcannotbetoocareful.4.hadbetter最佳Youhadbetternotwakemeupwhenyoucomein.*两大类区别:一、表达能力:can,beabletobeableto能用于各种时态。can/could只能表达现在或过去的能力*was/wereableto:“设法做成某事”相称于managedtodosthsucceededindoingsth.二、usedto和would的区别usedto过去经常(但现在已无此习惯,would无此含义) Heusedtodrinkbeer,nowhedrinkswine.他过去喝啤酒,现在喝白酒。would只能用来谈动作;usedto用来谈动作或状态(可与be,live,like,stay等状态动词连用):Hewouldgetupearlywhenhelivedinthecountry.他住在乡下时总是早起。Weusedtoliveinasmalltown.(不能用would)Beusedtodoingsth:习惯于做某事专四语法考点串讲之三非谓语动词非谓语动词是历年专四测试的重中之重,每年试题一般一到两道(1-2分)。命题特点1.非谓语动词的时态与语态;2.非谓语动词的否认式;3.动词不定式的各种形式及应用;4.-ing结构的各种形式及应用;5.-ed结构在句中的不同用法;6.非谓语动词作状语、宾语等的辨析;7.非谓语动词的固定结构或习惯用法等。【非谓语动词基础知识】一个句子当中,已经存在谓语动词,又没有连词的情况下,需要非谓语动词来修饰句子的其他成分。动词不定式;现在分词;过去分词;动名词I.不定式的时态及语态一般式todotobedone与谓语动作同时或进行式tobedoing表达谓语的动作发生时,不定式的动作正在进行完毕式tohavedonetohavebeendone先于谓语动作的发生用途:表将来表某一次具体的动作表目的Ihavealotworktodo;Idonotliketodance;TolearnEnglishwell,Ipracticemore.2.动名词一般式doingbeingdone与谓语动作同时发生完毕式Havingdonehavingbeendone在谓语动作之前用途:抽象、习惯性(hishobbyispainting;IamproudofbeingaChinese)3.分词的时态和语态现在分词一般式doingbeingdone完毕式havingdonehavingbeendone过去分词done用途:现在分词:积极、进行、令人……的过去分词:被动、完毕、感到……的TheswimmingboyisTom.(积极、进行)theroomfacingsouth(积极)Thefilmisdisappointing.Tomisdisappointed(令人……的)/(感到)Lookatthebrokenglass.(被动、完毕)注意*所有非谓语动词的否认形式都是把否认副词not放在非谓语动词的_前面_*假如表达的动作在谓语表达的动作之前发生,有时需要用动词的完毕时态。考点一不定式做结果状语的固定搭配too+adj/advtodo,ﻩso+adj/advastodo,such+nastodoﻩ adj/advenoughtodoonlytodo常表达意想不到或不快乐的结果。考点二“使……怎么样”之类的动词amuse,astonish,excite,frighten,interest,move,relax,satisfy,shock,surprise,encourage,disappoint,puzzle,tire,please,inspire,terrify,worry,它们的ing形式表达积极,而过去分词表达被动。一般情况下“人”用过去分词,“物”用ing形式。*考点三除。.之外的介词butexcept,前面有行为动词do时,不定式不带to,否则带to.*考点四whynotdosth(为什么不做某事)固定搭配cannot/hardly/never/scarcelytoo…to…“越……越好;无论……也/都但是分”。Youcannotbetoocarefultocrossthestreet.你过街时越小心越好。can’t(help/choose)but不得不,只能,不禁Icannothelpbuttellherthetruth.我只能告诉她真相。*解题思绪:看似纷繁复杂的各种非谓语动词考题事实上是有解题规律可寻的,非谓语动词解题四步曲:一、一方面抓住主谓结构,拟定主句没有连接词只有一个主语二、分析积极被动分析语态就是在拟定主语之后,分析非谓语动词和主语在搭配使用时是积极还是被动关系。三、分析动作先后要考虑动作发生的时间先后,即时态。独立主格独立主格:句中没有连接词,逗号分开两个句子,存在两个主语形式:名词/代词+分词在用分词短语作状语时,它逻辑上的主语一般必须与句子的主语一致,但有时它也可以有自己独立的逻辑上的主语,这种结构称为:独立主格的分类:(1)-ING分词(尚有-ED分词)短语作状语时,有自己独立的逻辑上的“主语”。相称于各种形式的状语,表达一种随着的动作或情况,或表因素Therebeingnothingmorefordiscussion,themeetingwasoverhalfanhourearlier.(2).介词(with)+名词+形容词,副词+现在分词或过去分词,表达陪村行动做或补充说明例如:Helayonhisback,withhisarmbehindhishead(3)独立结构可以表达随着动作或情况,表达时间、因素、条件等,例如:Herushedintotheroom,hisfacecoveredwithsweat.(随着情况)Theshowerbeingover,wecontinuedtomarch.(时间)Somanystudentsbeingabsent,wedecidedtoputthemeetingoff.(因素)Weatherpermitting,we’llhaveanoutingtomorrow.(条件)Allthingsconsidered,herpaperisofgreatervaluethanyours.Thejobdone,wewenthome.Thecompositionwritten,hehandedittotheteacher.专四语法考点串讲之三—不定式、动名词作宾语(非谓语补充)*常跟不定式做宾语的词三个w、h、c,二a领着四d、p,一r、m,二l、b,外加三个o,u,e。3w:want(想要),wish(希望),wait(等待)3h:hope(希望),help(帮忙),hesitate(踌躇)3c:care(乐意),choose(选择),claim(声称)2a:agree(批准),afford(担负得起),4d:dare(敢于),demand(规定),determine(决定),decide(决定)4p:plan(计划),pretend(假装),promise(允诺),prepare(准备)1r:refuse(拒绝)1m:manage(设法)2l:learn(学会),long(渴望)2b:beg(乞求),bear(忍受)1o:offer(提出)1u:undertake(答应;批准)1e:expect(希望)*接不带to的不定式的特殊动词一感:feel二听:listento;hear三让:make,have,let四看:watch,see,lookat,observe被动句里to还原。*接不定式作宾语,动名词作宾语均可,且意思基本不变的词双方一旦开始(begin,start),无论喜欢(love,like,prefer)与否(hate,dislike),都得继续(continue)下去。都不能企图(attempt)忽视(neglect)开始的爱(love)。习惯也好,胆怯也好,难以容忍(can’tbear/stand/endure)也好。*可以动名词作宾语,也可用不定式作宾语,意思却不同的词四“记”力争不后悔①四“记”(记住)remember,(忘掉)forget,(计划/打算)mean,(继续)goon,②力争:try③不后悔:stopregret①remembertodosth.记得要做某事rememberdoingsth.记得曾做过某事②forgettodosth忘了要做某事forgetdoingsth.忘了做过某事;③meantodosth打算做某事meandoingsth.意味着,就是④goontodo继续做另一件事goondoing继续做同一件事⑤trytodosth试图做某事,trydoingsth.尝试做某事⑥stoptodosth停下来做某事stopdoingsth.停止做某事。⑦regrettodosth对要发生的事表达“遗憾”,regretdoingsth.对发生过的事表达“后悔”。*常接动名词做宾语的词MP\2r\café\disk(militarypoliceman)宪兵带着2把手枪在咖啡馆里看光盘M指mind(介意),miss(逃过),mention(提及)P指prevent,postpone,practice2r指risk(冒险),resist(抵制)c指consider(考虑)a指admit(认可),avoid(避免),appreciate(感激),f指fancy(幻想),finish(完毕),feellike(喜欢)e指enjoy(享受),escape(逃脱),ensure(保证)d指delay(延迟),deny(否认),detest(痛恨)i指imagine(想象)s指suggest(建议)k指keep(保持)*介词后的inghavedifficulty(in)doingsth做某事有困难bebusy(in)doingsth忙于做某事succeedindoingsth…成功做某事giveupdoingsth放弃做某事prevent/stop/keepsb/sthfromdoing阻止…做…spend/wastetime/moneyindoing在做…方面花钱、浪费时间或金钱how/whataboutdoingsth做…怎么样了?Havesomedifficulty/troubleindoing在…方面有些困难Thereisnosenseindoing(做…是没有理由的Thank/admire/praise/blame/scold/punishsbfordoingsth因做某事而感谢、羡慕、表扬、责备、处罚某人*to是介词,不是不定式标志,接动名词做介词to的宾语applyoneselfto致力于beaccustomedto习惯于confessto供认cometo谈到devoteoneselfto献身于getdownto着手做givewayto对…让步leadto导致lookforwardto期待nextto几乎12.objectto反对13.payattentionto注意14.stickto坚持15.standupto勇敢面对16.turnto求助于17.beusedto习惯于*
用于“be+过去分词+to”结构中的过去分词
常见的有:accustomed/used(习惯)addicted(沉溺于)astonished(惊讶)devoted(致力于)determined(决定)engaged(订婚)exposed(遭受)known(已知)married(结婚)opposed(反对)prepared(准备)related(相关)*
用于“be+过去分词+with”结构中的过去分词
常见的有:armed(配备)connected(相关)covered(覆盖)crowded(挤满)faced(面对)fed
up(厌烦)filled(充满)pleased(快乐)satisfied(满意)tired(劳累)*用于“be+过去分词+in”结构中的过去分词
常见的有:absorbed(全神贯注)engaged(从事)involved(参与)lost(陷入)seated(坐在)situated/located(位于*用于“be+过去分词+of”
结构中的过去分词
常见的有:convinced(相信)informed(了解)tired(厌烦)*几组易错的现在分词、过去分词lievi.laylainlying躺liev.liedliedlying撒谎layvi.laidlaidlaying放;下蛋foundvt.foundedfounded成立findvt.foundfound发现Windwoundwound盘旋蜿蜒Woundwoundedwounded受伤riseviroserisen上升raisevt.raisedraised上升fallvi.fellfallen落下fellvt.Felledfelled砍feelvt.feltfelt摸;感觉hangvihunghung悬挂hangvt.hangedhanged绞死lightvt.lit(一般作谓语)lightlighted(作定语)燃着的burnvt./viburnt烧焦的,burning正在燃烧的专四语法考点串讲之四复合句定语从句五大约念:概念一、什么是定语从句?ﻩ
在复合句中,修饰某一名词或代词的从句叫做定语从句。在定语从句中,被修饰的这一名词或代词叫做先行词。在定语从句中的引导词叫做关系词。关系词又分关系代词和关系副词。概念二、关系词有哪些?ﻫ1、关系代词:which(指sth作主语或宾语),that(指sb或sth作主语或宾语),who(指sb作主语或宾语),whom(指sb作宾语),whose(指sb或sth,作定语),as(指sb,sth作主语或宾语);注意:做宾语的时候,关系代词可以省略。2、关系副词:when(指时间onwhich),where(指地点atwhich),why(指因素forwhich)概念三、关系词通常有下列三个作用?1.引导定语从句;2.代替先行词;3.在定语从句中担当一个成分。Eg.Themanwhoisshakinghandswithmyfatherisapoliceman.概念四、关系代词和关系副词有何区别及方法?ﻫ重要是它们在从句中所起的作用不同。关系代词在从句中一般作主语或宾语。而关系副词在定语从句中作状语。Focusin:方法一:句子成份法:关系代词在句中充当主语、宾语;关系副词在从句中作状语。方法二:句子完整法:关系代词引导的定语从句不完整;关系副词引导的定语从句是完整的。Iwillneverforgetthedayswhenwespentourholidaystogether.Iwillneverforgetthedaysthat/whichwespenttogether.概念五、限制性定语从句和非限制性定语从句的区别A.限制性定语从句形式上不用逗号“,”与主句隔开。意义上是先行词不可缺少的定语,如删除,主句则失去意义或意思表达不完整。B.非限制性定语从句只是对先行词的补充说明,如删除,主句仍能表达完整的意思。译法上译成先行词的定语“...的”通常译成主句的并列句。ﻩ在非限制性定语从句中,通常用who,whom,whose指人,用which指物。Eg.Herbrotherwhoisnowasoldieralwaysencourageshertogotocollege.她那当兵的哥哥总是鼓励她上大学.(意含:她尚有其他哥哥。)Herbrother,whoisnowasoldier,alwaysencourageshertogotocollege.她哥哥是当兵的,他总是鼓励她上大学。(意含:她只有一个哥哥。)五大考点:考点一.先行词为人时引导词who和thata.用who不用that的情况:(1)当先行词为one,ones,anyone,those时。(2)当先行词为人称代词时。HewhodoesnotreachtheGreatWallisnotatrueman.Thosewhohaveanydifficultywithpronunciationshouldpracticemore.b.用that不用who的情况:1)当主句已经出现who时。2)关系代词在定语从句中作表语时。Whoisthemanthatspoketoyoujustnow?Maryisnolongerthegirlthatsheusedtobe.考点二.先行词为物时引导词that和whicha.只用that不用which的情况:(1)先行词为much,little,few,nothing,none,anything,no,all等不定代词(2)先行词既有人又有物。(3)先行词被形容词的最高级或序数词修饰。(4)先行词被thevery,theonly,thelast,just,all,any,every,no等修饰(5)关系代词在从句中作表语.(6)在疑问词who、which、what开头的句子中(7)主句是therebe句型:ThisisoneofthebestfilmsthatIhaveeverseen.Chinaisnolongerthecountrythatitusedtobe.Allthatcanbedonehasbeendone.Hespokeofthethingsandpersonsthathehadseenabroad.ThisistheverybookthatIamlookingfor.WhoisthemanthatistalkingtoJim?Thereisamanthatlivesinthatvillage.b.只能用which不用that的情况:1.介词后面2.逗号后面1.定语从句中的介词前置时关系代词只能用which2.引导非限制性定语从句时只能用which,其先行词可是一个词,也可是整个主句或主句的某一部分.(1)Themachine,whichIhavelookedafterformanyyear,isstillworkingperfectly.(2)Myglasses,withoutwhichIwaslikeablindman,felltothegroundandbroke.考点三:★★★★★介词+关系代词(which/whom)****关系代词前介词的拟定方法:1.定语从句的动词与先行词的逻辑关系,或者从句的动词、形容词的习惯性搭配。Eg.ThefarmonwhichIonceworkedhastakenonanewlookWhoisthemanwithwhomourteacherisshakinghands?Oursisabeautifulcountry,ofwhichwearegreatlyproud.2.非限制性定语从句中,表达先行词的一部分时,可用“数词/代词+of+关系代词”的结构,e.g.Thereare50studentsinourclass,two-thirdsofwhomhavebeentoBeijing.3.Whose从句可转换为“of+关系代词”型,whose的先行词指物时,可用ofwhich代替,但词序不同,即whose+n=the+n+ofwhich=ofwhich+the+n.e.g.Theyliveinahouse,whosedooropenstothesouth.Theylivedinahouse,thedoorofwhichopentothesouth.Ofwhichthedooropentothesouth.考点四:关系副词的运用⑴先行词为“时间的名词”用when:time(day,night,morning,week,month,year等)+when…Eg.Idon’trememberthedaywhenheleft.(onwhich)⑵先行词为“表达地点的名词”★★★★★where:place(case,point,situation,condition,scene,stage,country,room,house,hotel,museum,school,street等)+where…Eg.Thatisthehousewherehelivedtwoyearsago.(Inwhich)⑶先行词为“表达因素的名词”why:reason+why…(表达因素的名词只有一个)That'sthereasonwhyIhelpedhim.(why=forwhich)考点五:★★★★★as与which引导的定语从句两者均可引导非限制性定语从句,as放在句首句中都可以,which必需放在句中,但下列情况多用as。1.关系代词引导的定语从句居句首时。e.g.Asweallknow,theearthisround.2.当与such,as或thesame连用时,一般用as。e.g.That’sthesametoolasIusedlastweek.IamnotsostrongamanasIwas.我已经没有从前那么强壮了。3.当主句和从句之间存在着逻辑上的因果关系时,关系词往往只用which。Eg.Tomwaslateforschoolagainandagain,whichmadehisteacherveryangry.三大区别:1.thesame...as和thesame...that的用法辨异.That’sthesametoolasIusedlastweek.(同类事物)That’sthesametoolthatIusedlastweek.那就是我上周用过的工具。(指原物)2.定语从句与强调句型的区别判断是否是强调结构的方法是采用删除法分析:强调句句型:Itis/was+被强调的成份+that/who+其它部分.去掉Itis/was….that/who…,句子照样成立。①ItisonthemorningofMay1st_____ImetLiangWeiattheairport.②Itisthefactory_____MrWangworks.3、定语从句与习惯句型的区别①Itisthefirsttime_____shehasbeeninShanghai.(Itis/wasthefirst/second.time+that从句)②Itwasthetime_____Chinesepeoplehadahardlife.三大注意:1.theway做先行词时,定语从句可由that,inwhich引导或不用引导词。2.定语从句中主谓一致问题:从句中的动词在人称和数方面应当与它的先行词保持一致。HeisoneoftheteacherswhoknowEnglishwell.HeistheonlyoneoftheteacherswhoknowsEnglishwell.(特殊)3.疑问句的解题思绪:先把疑问句还原成陈述句,然后判断谁是先行词,再看关系词在定语从句中所充当的成分,最后拟定对的答案。1.Isthisfactory____wevisitedlastweek?2.Isthisthefactory____wevisitedlastWeek?A、whereB、thatC、towhichD、theone★★小试牛刀Thatisthefactorywhereproduces100,000TVsetsayear.Thatisthefactorythathisfatheronceworked.I’llneverforgetthedayswhenwespentonthatlonelyisland.I’llneverforgetthedaywhen/onwhichIjoinedtheParty.二、状语从句一:时间状语从句1,连词:when,while,as,till/until,before,after,since,once,assoonas,everytime,themoment,theminute,nosooner..thanhardly…when等2.五大考点:考点⑴whenVSwhileVSas★当….的时候★当…的时候★当….的时候whenwhileas★一边….一边….★趁着…时候★随着…考点⑵till/until“直到….为止”Eg.MotherwaitedforTomtill/untilitwasfarintothenight.(连续性动词)Eg.Tomdidn’tgetbacktill/untileverythingwasallright.(短暂性动词)考点⑶when的两个句型Sbisabouttodosthwhen/Sbisdoingsthwhen考点⑷since“自从”句型:itis/hasbeen+一段时间+since+从句Eg.itisthreedayssinceIleftBeijing.Ithasbeen10yearssinceIsmoked.考点⑸Nosoonerthan/hardly..when/scarcely..when一.就..用于句首规定倒装Eg.Nosoonerhadhearrivedthanhewentawayagain.★几种特殊句型结构的区别:(1)Itis/was+时刻+when从句“某事发生时是什么时候。”(2)Itis/hasbeen+时间段+since从句“自从……以来有多长时间了。”(3)Itwill/wouldbe+时间段+before从句“还要过多长时间……才……”(4)Itwill/wouldnotbe+时间段+before从句“过不了多长时间……就会……”(5)Itwas+时间段+before从句“过了多长时间才……”(6)Itwasnot+时间段+before从句“没过多长时间就……”二、条件状语从句1,连接词:if,unless(假如..不,除非),so/aslongas(只要),onconditionthat(条件是),as(so)faras(据..所知),providedthat(要是,假如),incase(假使,假如),等2.两大考点:考点⑴Once---一但……就……Eg.Onceyouseehim,youwillneverforgethim.考点⑵Incase---假使,假如Theplanecannottakeoffincaseitrains.三,因素状语从句1,连接词:Because,since,as(放句首),for,nowthat(既然,由于),when(既然),consideringthat(顾及到---),seeingthat(由于)。(都表达因素,语气依次减弱)2,考试聚焦考点一、BecauseVSsinceVSforBecause:表达“由于”,表达直接的或明确的因素;Since:表达“既然”,表达已知或显然的因素;for:不是从属连词,而是并列连词。它不是用来说明因素,而是用来表达一种附带或补充解释、说明,不放在句首。Eg:Itwasbecausehismotherwasbadlyillthathewasunhappy.Sinceeveryonemakesmistakesinlife,youneedn’tscoldhimforit.Thedaybreaks,forthebirdsaresinging.考点二、when既然Eg.Howcanyouexpecttolearnanythingwhenyouneverlisten?四,让步状语:1.连接词:though/although(虽然),as/though(虽然),evenif/though(即使)whatever(无论什么),wherever(无论哪里),while(尽管)等引导。2,考试聚焦:考点一:though/although不与but连用,但是他们都可以同yet(still)连用.所以though(although)…yet(still)的格式是对的的考点二:while尽管eg.WhileIhavesympathyforyou,Ican’thelpyou.考点三:Whether---不管,常与ornot连用Eg.Whetherheisgoodornot,thecompanydecidedtosendhimabroad.考点四:nomatter+疑问词相称于疑问词+ever:不管…都…五、地点状语从句:where/wherever(wherever---无论哪里)考点聚焦:地点状语从句和where定语从句的区别:Tips:判断是定语从句还是地点状语从句,要看从句前是否有先行词,有先行词的是定语从句,否则是状语从句。Eg.Wherethereisawill,thereisaway.Thisisthefactorywheremyfatherworks.六、结果状语从句1.连接词:sothat(=inorderto因而),so…that.(太..以至于),such…that(太…以至于)2.考试聚焦:考点句型(1)so+形容词/副词+that从句;(2)sucha/an+形容词+可数名词单数+that从句;(3)so+形容词+a/an+可数名词单数+that从句;(4)such+形容词+可数名词复数/不可数名词+that从句七、目的状语从句1.连接词:sothat(以便),inorderthat(为了),forfearthat(为了防止),lest(以防)Eg.Hetookthenamedownforfearthatheshouldforgetit.八、比较状语从句(倍数+thedepth/height/width/weightof)1.连接词:A.….as…as…B.….adj.+-erthan…C.themore…themore…Eg.ThisworkisnotaseasyasyouthinkThemoreyouwork,themoreyouearn.Herunsfasterthani.Theroomistwiceasbigasthatone.Theroomistwicebiggerthanthatone.Theroomistwicethesizeofthatone.Thewellisthreetimesthedepthofthatone.While的总结用法:1.当…的时候;2.而,却;3.趁着;4.只要;5.虽然,尽管。专四语法考点串讲之五倒装句★倒装考点口诀倒装两大类,全倒部分倒;主倒从不倒;全倒分两种:副词、地点介短在句首;部分倒装分六种:否认副词在句首,only加状在句首,so...that结构so提前,承前否认/肯定neithernor/so,状语从句as/though,省去if虚拟句一、所有倒装1.在以here、there、now、then、off、away等副词开头的句子里。(1)Thebirdsflewaway.→Awayflewthebirds.
(2)Theraincamedown.→Downcametherain.2.表达地点的介词短语位于句首时。(1)山脚下有一个美丽的湖。Atthefootofthehillliesabeautifullake.(2)教室外面站着一个男孩。Outsidetheclassroomstoodaboy.二、部分倒装1.Only+状语位于句首时Heonlyfounditimportanttogetalongwithothersthen.→Onlythendidhefinditimportanttogetalongwithothers.Wecanonlymakegreatprogressinthisway.→Onlyinthiswaycanwemakegrgress.2.否认副词及短语位于句首时。
常考的这类词或词语有:not,seldom,hardly,little,nowhere,bynomeans,innotime等。Ihaveneverseensuchabeautifulplace.→NeverhaveIseensuchabeautifulplace.3.在省略if的虚拟条件从句中。(1)假如我是你,我会努力学习。WereIyou,Iwouldworkhard.(2)假如明天下雨的话,我们就延迟会议。Shoulditraintomorrow,wewouldputoffourmeeting.(3)假如他听从了我的建议,他早就成功了。Hadhefollowedmyadvice,hewouldhavesucceeded.4、so\neither\nor位于句首的情况。1.So+助动词+主语…也同样。So+主语+助动词…的确如此。2.Neither和Nor用于否认句,表达“也不,也没有”。Neither\Nor+助动词+主语5、as/though引导的让步状语从句名词\形容词\副词\动词+as\though+主语+其他6、在“so+adj./adv.+that…”句式中,将“so+adj./adv.”放在句首时的倒装。SoharddoesheworkthathehasmadegreatprogressinEnglish.★特殊倒装句型:notonly…butalso…句式的倒装Notonlyisheinterestedinfootballbutalsoheplaysitwell.(前倒后不倒)考点倒装四注意:1、as/though从句的表语是名词,倒装后其名词前不加任何冠词;Asheisachild---childasheis2、if虚拟句Wereitnot...或者Haditnotbeen...,但不可以说Weren’tit...或者hadn’titbeen...(not不提前)3、承前肯定so,只能指定一件事情,两件事情用soitis(thesame)withsbﻫ4、So+助动词+主语:也同样
So+主语+助动词:的确如此专四语法考点串讲之六小语法点一、反义疑问句的考点聚焦:1)陈述部分的主语是I,疑问部分要用aren'tI.Iamastudent,aren’tI2)陈述部分的谓语是wish,疑问部分要用may+主语Iwishtohaveawordwithyou,mayI?3)陈述部分用no,nothing,nobody,never,few,seldom,hardly,rarely,little等否认含义的词时,疑问部分用肯定含义。Someplantsneverblown(开花),dothey?4)否认前缀不能视为否认词,其反意疑问句仍用否认形式Itisimpossible,isn'tit?5)must在表达"推测"时,根据其推测的情况来拟定反意疑问句。Hemustbeadoctor,isn'the?YoumusthavestudiedEnglishforthreeyears,haven'tyou?Hemusthavefinishedityesterday,didn'the?Itmustbegoingtoraintomorrow,won'tit?6)省去主语的祈使句的反意疑问句,疑问部分用willyou。Don'tdothatagain,willyou?Gowithme,willyou/won'tyou?7)复合句的反疑疑问句A.带有定语从句,宾语从句的主从复合句,疑问部分谓语根据主句的谓语而定:Heisnotthemanwhogaveusatalk,ishe?B上述部分主句谓语是I/wethink,believe,expect,suppose,imagine等引导的宾语从句,疑问部分与宾语从句相相应构成反意疑问句。Idon'tthinkheisbright,ishe?二、主谓一致的考点聚焦1)“就远原则”“主语+介词短语等”作主语在“A+(with,togetherwith,alongwith,aswellas,but,except,besides,like,including,ratherthan,morethan,nolessthan)+B”结构中,谓语动词的单复数与之B一致。2)就近原则neither…nor…,(either)…or…,notonly…butalso…,not…but…等并列结构作主语时采用就近原则:谓语动词的数由与其最接近的那个主语的数决定。3)“a/thenumberof+复数名词”作主语表达“…的数量”的“thenumberof+复数名词”作主语时,谓语动词用单数;表达“一些/许多…”的“anumberof+复数名词”作主语时,谓语动词用复数。4).morethanone+__/Manya+___/EveryAandeveryB/NoAandnoB/oneandahalf+谓语动词用单数。注意:more复数名词+thanone用复数,Moremembersthanoneareagainstyourplan.5).并列主语假如指的是同一个人、同一事物或同一概念时,谓语动词用单数形式。注意:整体看待:breadandbutterbreadandcheeseaknifeandforkacartandhorseneedleandthreadlawandorderfishandchipsmeatandpotatoes例如:Truthandhon
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