高中英语it的用法

高中英语it的用法

一、代词it

用法例句

代替前文提到Thisisanewdictionary.Iboughtityesterday.

过的东西或事这是一本新词典，我昨天买的。

情，用作人称Tomjoinedthearmylastmouth.Doyouknowaboutit?

代词。汤姆上月入伍了，你知道这事吗？

代替指示代Isthisyourcar?No,itisn9t.这是你的汽车吗？不是。

词，起着thisWhafsthat?一Ifsavideo.那是什么？它是一台录像机。

或that的作用Whoseroomisthis?一Itistheirs.这是谁的房间，是他们的。

指明某人或某Who9sthere?Ifsme.（IfsJohn）谁在那儿？是我。（是约翰）

物的身分，还Goandseewhoitisthatrings.It'sBill.

可指不明性别去看看是谁来的电话，是比尔。

的婴儿TheGreenshaveanewbaby.It'slovely.

格林家有一个新生婴儿。它很可爱。

指时间，距It'sSundaytoday.今天是星期天。

离，自然现象It'sthreemonthssincehecamehere.

（天气，气自从他来到这里，已经三个月了。

候，明暗）量HowfarisittotheGreatWall.到长城有多远？

度，价值等It'sgettingdark.天快黑了。

一Howmuchisthecoat?——It'sninetydollars.

这件衣服多少钱？九十美元。

专项练习

1.Iwasdisappointedwiththefilm.Ihadexpectedtobemuchbetter.

A.thatB.thisC.oneD.it

2.一Whoisknockingatthedoor?

一PerhapsisJerry.

A.heB.thatC.itD.the

man

3.Tom'smotherkepttellinghimthatheshouldworkharder,butdidn'twork.

A.heB.whichC.sheD.it

4.一Howgoing?

一EverythingisOK.

A.isitB.aretheyC.isthatD.are

these

5.一Hewasnearlydrownedonce.

一Whenwas?

一wasin1998whenhewasinmiddleschool.

A.that...ItB.this...ThisC.this...ItD.that...

This

Keys:1-5.DCDAA

二、引导词it

用法句型例句

代替不定1.Itisnecessary(important,Itisuptoyoutodecide.这事

easy,difficult,natural,

形式短语common,interesting,要由你决定。

pleasant...)forsb.todosth.Itmakesmehappytohearyou

/that...

2.Itiskind(clever,brave,haverecovered.

careful,careless,foolish,听说你恢复了健康，这使我很

honest,nice,polite...)of

sb.todosth.高兴。

3.Ittakessb.+一段时间+

todosth.

4.

式代替动名Itisnogood(useless,nouse,aIt'snousecryingoverspilt

wasteoftime)doingsth.

词短语milk.覆水难收。

主Ifsnogoodsmoking.吸烟没

有好处。

It'sworthwhileworkingthe

wholenightontheproblem.

用整夜的时间来研究那个问题

是值得的。

代替主语1.Itisapity(ashame,anhonor,Itisapitythatyoudidn'tcome

nowonder)that...

语从句2.Itissaid(reported,believed,totheparty.

thought,announced,estimated)很遗憾你没来参加聚会。

that...

3.Itissuggested(advised,Itdoesn'tmatterwhatyoudo.

ordered,requested...)that...你干什么都没有关系。

(should)...(主语从句用虚拟语

气表达)Itseemsthateveryonehas

4.Itseems(appears,happens,knownthenews.

turnsout,occurredtosb.)that...

好象大家都知道这个消息。

5.Itmatters/doesn^matterthat...

Iconsideritbettertobeearly.

代替不定我认为能够早一些更好。

形式式短语Wefounditimpossibletoget

therebeforeJuly.

我们觉得，要在七月以前到达

那里是不可能的。

宾语代替动名Wethoughtitnousedoingthat.

词短语我们认为做那事没有用。

代替宾语Theteachermakesitclearthat

从句everyoneshouldhandinhis

homeworkontime.

老师清楚地指出，每个人都应

该按时交作业。

专项练习

1.isafactthatGlobalWarminghasinfluencedhumanbeings*life.

A.ThereB.ThisC.ThatD.It

2.Itiswrongtreatyourmotherlikethat.

A.thatyoutoB.ofyoutoC.foryoutoD.

becauseyou

3.IsnecessarytocompletethetaskbeforeNationalDay?

A.thisB.thatC.itD.he

4.Doesmatterifhecan'tfinishthejobontime?

A.thisB.thatC.heD.it

5.Hehasn'thadanyfoodfortwodays.thatheissohungry.

A.ThereisnopointB.Thereisnoneed

C.ItisnowonderD.Itisnoway

6.hehasbeenfiredbecauseofhisabsenceforalongtimewithnoreason.

A.ItissaidthatB.Theyallsaidthat

C.ThatisannouncedthatD.Itwasreported

7.Itisnousebookswithoutreading.

A.tobuyB.inbuyingC.ofbuyingD.

buying

8.humanbeingscanliveonthemooninthenexttwentyyears.

A.ThereseemsimpossibleB.Thisisimpossiblefor

C.ItisimpossibleofD.Itseemsimpossiblethat

9.intheschoolregulationthatstudentsshouldwearschooluniformsat

school.

A.WhatisrequiredB.Whatrequires

C.ItisrequiredD.Itrequires

10.——Howdoyouknowhimwell?

一thatweliveinthesameneighbourhood.

A.ItisB.ThatisC.ItisbecauseD.It

happens

11.1don'tthinkpossibletocompletethetaskwithoutgoodpreparation.

A.thisB.thatC.heD.it

12.1hatewhenpeopletalkwiththeirfullmouth.

A.itB.thatC.theseD.them

13.Hetodomorningexerciseinthepark.

A.tookaruleB.madearuleC.madeitaruleD.took

itarule

14.1wouldappreciateyouwouldturnofftheTVset.

A.thatB.itifC.theseifD.it

that

15.1thinkhardforyouthetaskonyourown.

A.itis...doB.this...todoC.thatis...doingD.it...

todo

16.Don'tforgrantedthathewillkeephispromise.

A.takethatB.takeitC.makethatD.make

it

17.Hesoonwhyhehaddoneit.

A.spokeclearlyB.madeitclearC.toldclearD.said

itclear

18.Doyouthink____nouseanotherapologytohim?

A.it...tomakeB.itis...makeC.it...makingD.that...

ofmaking

19.Weshouldregardasasocialdutytohelpthesepoorandhomelesspeople.

A.ourselvesB.theseC.itD.us

20.1foundtowatchthefootballmatchonTV.

A.itrelaxingB.thatisrelaxingC.itrelaxedD.that

isrelaxed

Keys:1-5DBCDC6-10ADDCD

11-15DACBD16-20BBCCA

三、it在强调结构中

强部例句说明

调分

主语ItisIwhoamtoblame.是我该受原句的谓语动词如果是现在或将来时态用It

责怪。is...that(who)如果原句谓语动词是过去时态，

Itwasyourunclethat(who)came则用Itwas...that(who)。在

yesterday.

昨天来的是你叔叔。

宾语ItwasanewpenthatMothergave强调时间，地点，原因或方式时不要用when,

me.where,how,必须用that。

母亲给我的是一支新钢笔。

地ItwasintheclassroomthatIleftmy

点umbrella.

我把雨伞就落在了教室里。

时Itisateleventhatthetrainleaves.

状间火车是在十一点钟离开。

方ItwasjustasheorderedthatIacted.

式我正是照他吩咐的那样做的。

语原Itwasbecausehewasintroublethat

因Itriedmybesttohelphim.

正是因为他处境困难我才尽力帮

助他。

宾补Itwasredthatwepaintedthegate.

我们把门油漆成红的颜色。

Itwaschairmanthattheyelected

him.

他们选他担任的是主席的职务。

强调句型：Itis(was)+被强调部分+that(who)+其它

专项练习

l.Itwaswhotelephonedmeyesterday.

A.himB.hisC.himselfD.he

2.wasahandbagthatJohngaveMaryatChristmas.

A.ItB.ThisC.ThatD.Such

3.Wastheroomthefamouswriterhadeverlivedin?

A.that,itB.it,thatC.it,whereD.that,which

4.Whyisiteveryonethinkshe'sathief?

A.becauseB.asC.whenD.that

5.isknowntousMarydancesbest.

A.She,xB.It,thatC.It,sheD.She,who

Keys:1-5AABDB

四、Itis…的其他句型

1.Itistime(hightime,abouttime)that…should/did...(从句用虚拟语气)

Itistimeforsbtodosth

2.Itis/hasbeenH段时间十since...

3.Itwas/willbe+long/一段时间十before...

Itwasn't/won'tbelongbefore...

4.Itis+时间+when...

5.Itisthefirst(second,third...)timethat...

6.Itisuptosbtodosth.

7.Itseems(appears,lookes)asif....

专项练习

1.Itwassometime—___werealizethetruth.

A.whenB.untilC.sinceD.

before

2.Itisfiveyears_____Ileftmyhometown.

A.whenB.beforeC.sinceD.after

3.Itwas_____thepolicearrived.

A.longuntilB.notlongC.alongtimewhenD.not

longbefore

4.Itwasmid-autumn-nightwetogethersatontheriversidewatchingthefull

moon.

A.thatB.whichC.themomentD.when

5.Mumcriticizedhimseverelybecausewasthethirdtimethathe

hiskeytothehouse.

A.it...hadlostB.this...lostC.that...hadforgotD.it...

forget

Keys:1-5DCDDA

练习题：

单项选择

1.thatIwaswatchingTVwhenhecametoseeme.

A.IthappenedB.Whathappened

C.ThathappenedD.Itwashappened

2.ThechairmanthoughtnecessarytoinviteProfessorSmithtospeakatthe

meeting.

A.thatB.itC.thisD.him

3.TheForeignMinistersaid,"ourhopethatthetwosideswillworktowards

peace."

A.ThisisB.ThereisC.ThatisD.It

is

4.isreportedinthenewspaperthattheterriblefloodhascausedalossof10

millionyuan.

A.ItB.ThisC.ThatD.As

5.Itsuptoyouwhetherweshouldgototheartexhibitionrightnow.

A.decidingB.todecideC.ofdecidingD.

decide

6.WasthatIsawlastnightatthecorner?

A.ityouB.notyouC.youD.that

yourself

7.ItisabouttwomonthsJamesleavesschool.Heisgoingtobealawyer.

A.whenB.beforeC.sinceD.that

8.turnistocleantheblackboard?

A.Which...itB.Whose...itC.Which...thatD.

Whose...that

9.Theseriouslyinjuredmanhasstoppedbreathing.willbenopossibilityof

makinghimcometolife.

A.ItB.ThereC.ThatD.This

10.Spaceexplorationhasbeenmadewiththedevelopmentofmodemscience.

A.itpossibleB.itwasC.thatbeingpossibleD.

possible

11.ToimprovemyspokenEnglish,ImaketoreciteapassageofEnglishevery

day.

A.aruleB.itaruleC.arulethatD.a

ruleitis

12.Hemovedtoanewflatbecauseisonlyfiveminutes*walkfromthenew

flattohisoffice.

A.itB.thisC.thatD.

there

13.ItwasseveralyearsIhadanopportunityofseeingthebirdagain.

A.for...beforeB.notfor...thatC.for...whenD.not

for...then

14.Itwaswiththegreatestdifficultytheboygatheredthestrengthtorise.

A.withwhichB.thatC.whichD.

what

15.ItisofgreathelpRadioEnglishonSunday.Itiswellreceived.

A.topickupB.ofpickingupC.topickD.

pickingup

Keys:1-5ABDAB6-10ABDBD11-15BABBA

基础题：

一.单项选择：

1.Itishightimethatourchild________todosomehomework.

A.learnedB.learnC.willlearnD.

wouldlearn

2.Itisessentialthateverychild________thesameeducationalopportunity.

A.hasB.couldhaveC.haveD.had

3.Itwasgoingtobesometime________hesawhisparentsagain.

A.sinceB.untilC.whenD.

before

4.the1500!sthefirstEuropeanexploredthecoastofCalifornia.

A.Itisnotuntil...thenB.Itwasuntil...that

C.It'snotuntil...whenD.Itwasnotuntil...that

5.1justwonderthatmadethemsodepressed.

A.whyitdidB.whattheydidC.howitwasD.

whatitwas

6.Itwaseighto'clockIgottotheschoolthismorning,madeour

teacherveryangry.

A.when...thatB.that...thatC.that...whenD.

when...which

7.,theyallwenttothelaketoswim.

A.ItwasahotdayB.Beingahotday

C.ItbeinghotD.Foritwasahotday

8.1don'tmindhercriticizingme,butishowshedoesthatIobjectto.

A.itB.thatC.thisD.

which

9.一seemstobesomethingwrongwiththemachine.

一Yes,gotalotofnoise.

A.It...it'sB.There...itsC.It…there'sD.

There...there's

10.acertaindoubtamongtheworkersastothenecessityofthework.

A.ThereareB.ThereisC.TheyareD.It

is

11.JoanhadoftenheardsaidthatMarleyhadnomoney.

A.oneB.onceC.itD.her

12.Whenyougooutingwithyoursisters,youmustseetothattheyaresafe.

A.everythingB.itC.thatD.

yourself

13.Hesaid,Halongwaytoschool.alongwaytogoyetbefore

wearrive."

A.Itis...ThereisB.Thereis...ItisC.Thereis...Thereis

D.Itis...Itis

14.一Isitmyagethebossminds?

——I'mafraidnot.Hewillconsidernecessarytohaveanexperienced

assistant.

A.which...itB.that...itC.which...thatD.

that...that

15.easytodotherepair.Allyouneedisahammerandsomenails.

A.YouareB.ThatisC.ThereisD.It

is

Keys:1-5ACDDD6-10DCABB11-15CBABD

提升题：

一、翻译。(要求运用it的相关句型)

1.一个既没有人生目标也不为其而奋斗的人注定是要失败的。(It)

2.抱怨太多作业是于事无补的，你不妨学学如何合理管理时间。(It5snouse)

3.到底是什么促使你放弃了这么稳定的工作，来到这个偏远地区保护野生动物？(it)

4.无人驾驶技术解决了人们的困惑，使开车打电话成为可能。(...it...)

5.人工智能正以如此快的速度改变着整个世界你很难预测未来的生活究竟会是什么样子。

(it)

6.缩小贫富差距是政府面临的主要挑战之一。(it)

7.毫无疑问，无人驾驶汽车在批量生产和大范围商用之前还有不少问题需要解决。(it)

8.人工智能正以如此快的速度改变着整个世界，你很难预测未来的生活究竟会是什么样子。

(it)

9.多参加志愿者活动，它能使你成为更好的人。(it)

10.大多数市民在网上高度赞扬这个主意，因为它不仅有助于传播信息，而且还提高了人们

保护孩子的意识。(it)

Keys:

1.Ifscertainthatonewillfailifhedoesn'tknowwhathisambition(s)/goal(s)is(are)

orstrivefor/workhardfor/fightfor/struggleforit(them).

2.Ifsnousecomplainingabouttoomuchhomework;youmayaswelllearnhowto

manageyourtimeproperly.

3.Whatwasitthatmadeyougiveupsuchastablejobandcometotheremoteareato

protectwildanimals?

4.Driverlesstechnologysolvespeople'spuzzleandmakesitpossibletomake

aphonecall/talkonthephonewhiledriving.

5.Soquicklyisartificialintelligencechangingthewholeworldthatitishardforyou

topredictwhatlifewillbelikeinthefuture.

6.Itisoneofthemainchallengesforthegovernmenttoreducethegapbetween

richandpoor.

7.Itisnodoubtbutthatanumberofproblemsremaintobesolvedbeforethemass

productionandlarge-scalecommercialapplicationofself-drivingvehicles.

8.Soquicklyisartificialintelligencechangingthewholeworldthatitishardforyou

topredictwhatlifewillbelikeinthefuture.

9.Takepartinmorevolunteeractivities,anditcanmakeyouabetterperson.

10.Mostcitizensspeakhighlyoftheideaonline(ontheInternet),becauseitnotonly

helpstospreadinformation,butalsoraisespeople'sawarenessofprotectingchildren.

二、语法填空

【徐汇区】

TravelingFrogStimulatesReflection

AfreemobilegameaboutatravelingfroghasbecomeahitinChina,(21)being

availableonlyinJapanese.

Called“Tabikaeru:TravelFrog”,themaincharacterofthegameisafrogthatgoeson

adventuresaroundJapan.Playerscollectclovers(四叶草)thatgrowinthefrog5sgarden

(22)theycanusethemtobuysuppliesforthefrog5sjourneys.Inturn,the

frogsendsplayerssouvenirsandsnapshotsfromitstravels.Userscannotcontrolwhenthefrog

choosestogoonitsadventures.

Whilenewsofthegame9sappealamongmobilephoneusersonthemainla