高三英语复习专题it的用法精选PPT讲稿.ppt
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1、关于高三英语复习专题it的用法第一页,讲稿共五十六页哦it是常见代词之一,它既可以指代时间、地点、天气、距离等,还能作形式主语或形式宾语,同时可以引起强调结构,是历年高考热点之一。现结合高考试题对其用法作一介绍。第二页,讲稿共五十六页哦一、用来表示时间、天气、地点、距离、环境、形势等。例如:Itistwomilestothebeach.(Oxford)这里到海滨有两英里。Itwasraininginthemorning.(Oxford)今天早晨下着雨。IfitsconvenientIcanseeyoutomorrow.(Oxford)如果方便,我明天能见你。第三页,讲稿共五十六页哦it表示时间
2、常用于句型:1、Itis/hasbeen一段时间since从句。意为“自以来已有多长时间了”或“自不以来已有多长时间了”。例如:第四页,讲稿共五十六页哦1)Itis/hasbeenmanyyearssinceIwaslastinLondon(P.136SEFCBook2B)自从我上次到伦敦,已经有许多年了。2)Itsalongtimesincewemetlast.(P.89JEFCBook3)自从我们上次见面以来已经有很长一段时间了。第五页,讲稿共五十六页哦2、Itis/was/willbe+一段时间+before从句。表示“在(做某事)前过了多长时间”,或“过了多长时间才”。如:Butit_
3、morethan100yearsbeforethecountrybeginsonceagaintolookasitdidbefore.但是在100年之后,这个国家才能恢复到以前的样子。willbe第六页,讲稿共五十六页哦二、用来指代人。说明某人的身份或者做某事的人;指代婴儿或儿童;在不清楚某人性别时,也可使用it,尤其在问答的形式中更为常见。例如:1.-Look,someoneiscoming.Whocanitbe?-Itmaybetheheadmaster.-Itcantbehim.HehasgonetoShanghai.-ItmustbeMr.Zhang.Helookslikethehea
4、dmaster.第七页,讲稿共五十六页哦2._DoctorStone,isntit?Shesusuallygood.A.ThatisB.ItisC.ThisisD.Sheis3.-IsthatDoctorStone?-Yeah.-Whois_?A.thisB.thatC.sheD.it第八页,讲稿共五十六页哦三、用来指代前文中的内容,或指代整个主句。如:1.Takeyourpoundofflesh!Ideclarethecourtallowsitandthelawgivesittoyou.(P.63SEFCBook3A)割下你要的那一磅肉吧!我宣布法庭允许你这么做,法律把那一磅肉判给你了。第九
5、页,讲稿共五十六页哦2.Ifitispossible,hodupthepartofthebodywhichisbleeding.(P.44SEFCBook2A)如果可能的话,就把出血的部位抬起来。3.Iwasdisappointedwiththefilm,Ihadexpected_tobemuchbetterAthatBthisConeDit第十页,讲稿共五十六页哦4.Tomsmotherkepttellinghimthatheshouldworkharder,_didnthelp.A.heB.whichC.sheD.butit5.ItissaidthatinAustraliathereism
6、orelandthanthegovernmentknows_.A.itwhattodowithB.howtodealwithitC.whattodowithitD.todowhatwith第十一页,讲稿共五十六页哦6.TheParkersboughtanewhouse,_willneedalotofworkbeforetheycanmovein.AbutthatBbutitConeDwhich7.Iloveswimming,_keepsmefit.A.anditB.whichC.itD.as8.Theysaidtheyhadfinishedthework,but_.A.Icantbelieve
7、itB.whatIcantbelieveC.whichIcantbelieveD.Idontbelieve第十二页,讲稿共五十六页哦四、在一些相对固定的词组中出现,没有特殊含义,经常不翻译。如:1.Hesneverreallymadeitasanactor.(Oxford)作为演员,他从未获得过真正的成功。2.Itismyturn轮到我了。3.Thatsjustit-Icantworkwhenyouremakingsomuchnoise.(Oxford)原因就在这儿-你们这么吵,我没法工作。第十三页,讲稿共五十六页哦4._.IvegotsomuchworkIdontknowwheretosta
8、rt.A.Whatanawful!B.Itsawful!C.Thatwasawful!D.Asisawful,5._withyou?_Verywell,thankyou.A.WhatisgoingonB.HowisitgoingC.HowiseverythinggoingD.Whatisup第十四页,讲稿共五十六页哦五、指代不定式、动名词、从句等,用作形式主语或形式宾语。如:1._alwaysdifficulttobeinaforeigncountry,especiallyifyoudontspeakthelanguage.A.ThatisalwaysB.ItisalwaysC.Itwillb
9、ealwaysD.Thatwillalwaysbe第十五页,讲稿共五十六页哦2.Wemustmake_tothepublicthatsomethingshouldbedonetostoppollution.A.WhatisclearB.itisclearC.ItclearD.thatclear3.Ihate_whenpeopletalkwiththeirmouthsfull.A.it B.thatC.theseD.them第十六页,讲稿共五十六页哦4._onedaytheywillhaveenoughanimalstosetthemfree.A.ItishopedforB.whatishope
10、dthatC.AsishopedthatD.Itishopedthat5._insidehisheartwasbeatingwildlywithfear.A.ItappearedcalmbutB.Heappearedcalm,butC.WhatappearedcalmwasD.Itwasappearedcalm,but第十七页,讲稿共五十六页哦用it作形式主语或形式宾语的句型主要有:It+be+adj./n.(forsb./ofsb)+todosth.It+be+fun/awasteoftime/nogood/nousedoingsth.Itbe过去分词that从句Itbe形容词that从句5
11、、Itbe名词(词组)that从句第十八页,讲稿共五十六页哦1.Isitpossiblenecessarytotellhisfathereverything?2.Infactitisahardjobforthepolicetokeeporderinanimportantfootballmatch.3.Idontthinkitpossibletomasteraforeignlanguagewithoutmuchmemorywork.4.Howsillyofyouitistohavedoneit!It+be+adj./n.(forsb./ofsb)+todosth.第十九页,讲稿共五十六页哦注意:
12、注意:该句型中的形容词通常是表示事物的特点或特征的如difficult,hard,easy,impossible,necessary,important等,此时用for;表示人的性格特征或特点的如nice,good,bad,kind,silly,foolish,wise,clever,careless,rude,brave,cruel,careful,grateful等,这时要用of。第二十页,讲稿共五十六页哦It+be+fun/awasteoftime/nogood/nousedoingsth.1._tojumpintoariveronahotsummerday!A.HowfunitisB.
13、WhatfunitisC.WhatfunofitisD.WhatafunitisItisnousecryingoverspiltmilk.谚牛奶已泼,哭也无用。第二十一页,讲稿共五十六页哦Itbe过去分词that从句Itissaid,reported,announced,hoped,thought,told,believed,expected,decided,suggested,known+that从句该句型通常可以转换成sb/sthissaidthat如:Itissaidthatthebookwastranslatedintomanylanguagesin1950.Thebookissaid
14、tohavebeentranslatedintomanylanguagesin1950.第二十二页,讲稿共五十六页哦Itbe形容词that从句可用于此句型的形容词还有wonderful,true,good,right,wrong,important,useless,surprising,clear,unusual,lucky,certain等。如:1)Itisquitecertainthathewillnotmakeaspeechatthemeeting.2)Itisimportantthatwe(should)studyhard.第二十三页,讲稿共五十六页哦5、Itbe名词(词组)that从
15、句。适用该句型的名词(词组)还有apity,anhonor,agoodthing,afact,asurprise,goodnews等。如:1)Itisapity(that)youmissedthesportsmeetinglastweek.2)_isafactthatEnglishisbeingacceptedasaninternationallanguage.A.ThereB.ThisC.ThatD.It第二十四页,讲稿共五十六页哦6、Itseemappearhappen的适当形式that从句。该句型常可以转换成含不定式的简单句。如:1)Itseemsthatthereisabigwaste
16、pipecomingdownfromthetown.(P.31SEFCBook3A)Thereseemstobeabigwastepipecomingdownfromthetown.第二十五页,讲稿共五十六页哦2)Heappearedcalm,butinsidehisheartwasbeatingwildlywithfear.(P.56SEFCBook3A)Itappearedthathewascalm,butinsidehisheartwasbeatingwildlywithfear.第二十六页,讲稿共五十六页哦7、Itdoesntmatter(Itsnowonder;Itdoesntmak
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