高考英语it重点用法归纳

1.替代词one,ones,that,those,it,this,that1)one,ones,that,thoseThat替换单数可数名词或不可数名词；one只替换单数的可数名词。Eg:Thevaseontheleftismorebeautifulthan__________ontheright.ThecoffeeproducedinBrazilismorefamousthan__________inMexico.theonethatThat只用于替换表示事物的名词，而one/ones替换表示人和表示事物的名词皆可。Eg:Hisyoungersisteristallerthantheelder___.Ineedtheplasticbags,notthepaper______.oneonesThat/those一般不带前置定语，但必须有后置定语。One/ones都可。当替换词的后置定语用所有格的of短语或当替换词被所有格修饰时，不用one/ones而用thatof/thoseof.Eg:Ilikethevasebetterthan________________inanothershop.Thewindowsofyourflatarecleanerthan_________ofmine.Agrandparent’sjobiseasierthan________ofaparent.ThecomputersinourschoolareconnectedtotheInternetwhile__________intheirschoolaren’t.theone/thatthosethatthoseThat/those用于替换有定冠词的名词；one/ones用于替换有不定冠词的名词。Eg:Thestyleofthebuildingissimilarto_________ofatemple.ACDplayermadeinJapancostsmorethan________madeinChina.thatoneEg:IboughtadictionarythreeyearsagoandIamstillusing______now.IboughtadictionarythreeyearsagobutIamgoingtobuyanew_______soon.It用以指特定的前面提到过的事物，即：it和它替换的是同一个事物，it前无修饰语；而one用于替换与前提事物有共同之处但并不完全一样的事物，因此，one之前或之后一定有修饰语来加以区别。2.It和oneitoneIt引起的几个易混淆的时间句型It+be+时间+since-clause这个句型表示从since从句谓语动作发生以后到现在或过去所经过的一段时间，意为“自从......以来已多久了”Itisthreeyearssincehisfatherpassedaway.It+be+时间+before-clause这个句型中的时间一般为表示一段时间的词语(如：alongtime,months,weeks,days,hours,minutes)，主句中的谓语动词用肯定式，意为“过多长时间才......”。主句的谓语动词是否定式时，意为“没过多长时间就......”。主句的时态可用过去时was或将来时willbe；用was时，before从句的动词用一般过去时；用willbe时，before从句常用一般现在时。她没过多久就背会了那些诗歌。Itwas_______________shelearnedthosepoemsbyheart.过了很久警察才来。Itwas______________thepolicearrived.要过好几个小时他才会作出决定。It__________hoursbeforehemakesadecision.要不了几个小时我们还会再见面的。__________________beforemeetagain.notlongbeforelongbeforewillbeItwillnotbehours3.It+be+时间+when-clause这个句型中,it指时间，而且表示时间的词语前没有介词(时间一般为具体时间)。主句中的谓语动词和从句中的谓语动词在时态上一般是一致的，主句是willbe，when从句用一般现在时代替将来时。Itwasalready8o‘clockwhenwegothome.Itwasthenextmorningwhenwefinishedourwork.Itwillbemidnightwhentheygetthere.It+be+时间+that-clause这个句型是个强调句型。例如：Itwastwoyearsagothathemadeanimportantinvention.(原句是：__________________________________)Itwasat5o’clockthathepractisedplayingtheviolininthemorning.(原句是：________________________________)比较：Itwas5o’clockwhenhestartedinthemorning.(5o‘clock前没有介词，这是个定语从句)Hemadeanimportantinventiontwoyearsago.Hepractisedplayingtheviolinat5o‘clockinthemorning.•It+be+time+that-clause这个句型属虚拟语气结构，不管主句中用的是is或was，that从句都须用动词的过去式或should+动词原型(但不及用过去式普通)，在time之前有时可加上high或about以加强语气。例如：Itistime(that)wehandedinourexercises.(=Itistimethatweshouldhandinourexercises.)Itishightime(that)shewrotealettertoherboyfriend.•It/This/That+thefirst(second,third…)time+that-clause这个句型表示截止到说话时为止的某人的一种经历，关键是注意time前有序数词，主句是is时，从句要用现在完成时；如果主句用一般过去时was，则从句须相应地用过去完成时。例如：Thisisthefirsttime(that)theseEuropeans____________theGreatWall.Itwasthefifthtime(that)I___________afriendlyvisittoAfrica.hadpaidhavevisited结构：It+动词be+强调部分+who(whom)/that+其他部分it可以用来对句子的某一成分加以强调。It用于强调句Eg:NancysawyoursisterinTokyolastweek.ItwasNancywhosawyoursisterinTokyolastweek.ItwasyoursisterwhomNancysawinTokyolastweek.ItwasinTokyothatNancysawyoursisterlastweek.ItwaslastweekthatNancysawyoursisterinTokyo.有些否定句也可以改成这种强调结构：Itwasn’tuntillastsummerthatIheardfromher.Ididn’tdoallthisformyself.Itwasn’tformyselfthatIdidallthis.问句也可变成这种结构：Whocalledhim“comrade”?Whowasitthatcalledhim“comrade”?Howdidyouforgettolockthedoor?Howwasitthatyouforgottolockthedoor?Ex:把下列句子改为强调句：1.Tombrokethewindowlastnight.2.Theywantmoney.3.Petersawhisfriendintheparkyesterday.4.Ididn’thaveanopportunityofseeingheragainforseveralyears.5.WhydoeseveryonethinkI’mnarrow-minded?6.Ididn’treceivemyletteruntilyesterday?7.DidDickcallthemeetinglastweek?8.Didithappenin1980?1.Tom‘smotherkepttellinghimthatheshouldworkharder,but___didn’thelp.A.heB.whichC.sheD.it1.As___happens,Ihavebroughtmyumbrellawithme.A.itB.thisC.thatD.such3.___hasalreadybeenpointedout,grammarisnotasetofdeadrules.A.AsB.ItC.ThatD.This4.Itwassevenforty-five___hefinishedthework.A.whenB.thatC.whenD.beforeDAAA5.Wasitbecauseitsnowedlastnight___hedidn‘tcome?A.whyB.thatC.whenD.which6.Does___matterifhecan’tfinishthejobontime?A.thisB.thatC.heD.it7.Europeanfootballisplayedin80countries,making___themostpopularsportintheworld.A.whichB.thisC.thatD.it8.___isnodoubtthathewillsucceedinhisexperiment.A.ItB.ThisC.ThatD.ThereBDDD9.Itworriedabit___herhairwasturninggray.A.whileB.thatC.ifD.for10.Itwasnot___shetookoffherdarkglassesIrealizedshewasafamousfilmstar.A.when;thatB.until;thatC.until;whenD.when;thenBB；苏州用友；是吸收和炼化灵气之用,只不过女人の祭台の效果,却远强于自己の元灵丶根汉也在研究这女人の祭台,看看能不能将自己の元灵也弄成她这样子の祭台の形式,只不过研究了半天,还是觉得没有办法丶女人问了根汉许多问题,加速对这个世界の了解,只是关于她の那个九天银河,银河系の事情,她现在暂时还想不起来,壹想就头痛丶根汉也只能和她说了说这边の情况,女人也很意外,不知道自己怎么就跑到了这个地方来了,她能确定の是,以前从来没有来过这种地方丶而且她也不知道,元灵这么壹说,更不知道什么仙路和万域の事情,她似乎只知道修仙者丶她们也是修仙者,但是却是与仙路,万域这边,完全不壹样の系统丶看来在这仙路和万域之外,还有别の修仙者存在。根汉心中暗惊：也许真の在银河系,在地球那边,也存在着修仙者,他们の修仙体系和这边完全不壹样丶这边万域就快结成壹域了,结成壹块超级修仙神地,那么在星空中の其它の地方,也许也会有像这样の壹域壹样の地方,也会有这样の超级修仙之地丶而她们,就有可能是来自这样の家亭丶根汉心中暗想当初知道九天银河壹亭の事情の人,应该不是很多,要不然就会有人出高价拍下她们三人了丶只是林嫡似乎知道这件事情,看来仙狱中の人,应该也知道壹些内情丶难道在仙狱中,有这样の史料记载,关于这块修仙之地之外の事情?壹定是有の,仙狱虽是刑罚之地,但