公开课it用法全

.carefulperson.Theuseof"It"It’s7:00It’slovely

-Whatdoyouthinkofthemovie?-It’s

oneofthebestmoviesthatI’veseen.Who’sthelovelybaby?MyfatherisMr.Black.It’sMr.Black’s.Who’sknockingatthedoor?Itmightbethemilkman.一.代词1.人称代词a.用作人称代词，代替前文提到过的事物，以避免重复:b.也可以指动物或婴儿(未知性别的婴儿或孩子):c.指代未出场的身份不明确的人。2.非人称代词有时并不指具体的东西，可指天气、时间、距离、环境等

3.指示代词指代this或thatThisisyourpen,isn’tit?What’sthatonthedesk?Iguessitmightbearobot.

summaryTohavesuchamagichouseispleasant.It’spleasanttohavesuchamagichouse.

Whetherwewillgototheoceanarium

hasnotbeendecided.Ithasnotbeendecidedwhetherwewillgototheoceanarium.替代作主语的从句、动词不定式、动名词,而把真正作主语的从句、动词不定式、动名词置于句尾。二.it

用作形式主语Itisillegal(forateenager)todriveacarwithoutalicense.It'skindofyoutohelpmewiththeproblem.1.Itbeadj.(forsb.)todosth.此处adj.

通常为描述事件的形容词:easy,difficult,hard.Itbeadj.ofsb.todosth.此处adj.通常为描述人的形容词:kind,unkind,nice,rude,cruel,considerate.It’snogood/use/useless

doing…It’s

worthwhiledoing…It’sawasteoftimedoing…It’snousecryingoverspiltmilk.2.Itbe+adj./n.+doing…做…是…的Itissaid(reported/learned/believed/thought/known/told/hoped...)that...ItissaidthathehascometoBeijing.Itissaidthatheisagreatartist.Itissaidthatheisworkinginthatbigcompany.

3.Itisv-edthat…=sb./sth.istodo

其变式为:sb/sthis/wassaid/reportedtodobedoinghavedone例题1.Robertissaid____abroad,butIdon’tknowwhichcountryhestudiedin.A.tohavestudiedB.tostudyCtobestudyingD.tohavebeenstudying2.Robertissaid___inAfrica,butnooneknowshowsoonhewillbeback.A.travellingB.totravelC.tobetravellingDtravelled3.Yourcousinissaid___anewcomputerprogrammerecently,butdoyouknowwhenhewillfinishit?A.todesignB.tobedesigningC.tohavebeendesigningD.tohavedesigned4.Itis+noun/adj.+

从句

a.Itisapity(ashame/anhonor/afact/asurprise/...)that...b.Itisimportant(necessary，strange，natural...)that...

Itisapitythatsuchathing(should)happeninyour

class.

Itisapitythatheisill.

c.Itisclear

(obvious，true，possible，certain....)

that.....

Itisveryclearthathe’sroundandtalllikeatree.

5.Ithappens

(seems，looks，appears)

that...

Ithappened(sohappened)thathemethisteacherinthestreet.碰巧．．.

Itseemsthathewillbebackinafewdays.看来．．．6.Ittakessb.sometime

todosth.Itwilltakeyou20minutestogettherebybus.___isexpected,accordingtosurvey,pricesofhouseswillnotgoupanylonger.A.ItB.ThisC.WhatD.As

1.S+think+it+necessary+(forsb.)todosth.

Thechairmanthought___necessarytoinviteProfessorSmithtospeakatthemeeting.(05全国)A.thatB.itC.thisD.himSentencepatterns:B

…find

…possiblefeel…important…/clause形式宾语

2.S+V+it+one’sduty+(forsb.)todosth./clause

3.S+V+it+nogood+doingsth.nouse/useless形式宾语Ithinkithisdutytocleantheblackboard.Sentencepatterns:

…aruleanhonour…

……findpossibleS+think+it+necessary+(forsb.)todosth./clausefeelimportant……Sentencepatterns:形式宾语

…arule2.S+V+it+one’sduty+(forsb.)todosth./clauseanhonour…3.S+V+it+nogood+doingsth.nouse/useless三.作形式宾语(PreparatorySubject)为了记忆方便我们把该句型总结为"6123结构"。

6指主句中常用的动词：think,believe,make,find,consider,feel；

1指的是形式宾语it；

2指的是宾补的两种形式：形容词或名词；

3指的是真正宾语的三种形式：不定式短语，动名词短语或从句。Wethinkitourdutytocleanourclassroomeveryday.

HefeltitimportantlearningEnglishwell.

Ilike___intheautumnwhentheweatherisclearandbright.(04全国)A.thisB.thatC.itD.one点拨:这里的代词it指的是theweatherisclearandbright.少数动词(如like,love,enjoy,dislike,hate,appreciate等)或包含介词的动词短语(如seeto,dependon等)后接宾语从句,必须先由it担任形式宾语,再接从句.Ilike(enjoy,hate…)itwhen….Iwouldappreciateitif…3.seeto(depend/rely/counton…)itthat…Sentencepatterns:C四.It的常用句型Itistime

(abouttime，hightime)

that...

是（正是）．．．的时侯

孩子们该上床了。Itistimethatchildrenshouldgotobed.

=Itistimethatchildrenwenttobed.It/That/Thisis/wasthefirst

(second...)

timethat...

ItisthefirsttimeIhavebeenhere.

Itbe+…+when...

常译为“当．．．的时候，是．．．”

Itwas5o’clockwhenhecamehere.

Itbe+…+before...

常译为“．．．之后．．．”。

Itwas3daysbeforehewenttoBeijing.

Itwillnotbelongbeforehefinisheshisjob.Itbe+…+since…

Itis(hasbeen)5yearssincehisfatherdied.---It’salongtimesincewelast___.---Yes,it’sreallypityit’llbeanotherhalfayearbeforewe___again.A.met;metB.met;meetC.meet;willmeetD.meet;meet1.It’syears___(since,before,that)Ipaintedthisbeautifulpicture.2.Itwillbeyears___(since,before,that)Ipaintthisbeautifulpicture.3.Itwasyears___(since,before,that)Ipaintedthisbeautifulpicture.4.It’sforyears___(since,before,that)Ihavepaintedthisbeautifulpicture.易误辨析:______________________TheParkersboughtanewhousebut___willneedalotofworkbeforetheycanmovein.A.theyB.itC.oneD.which2.We’vebeenlookingathousesbuthaven’tfound___welikeyet.A.oneB.onesC.itD.them3.I’mmovingtothecountrysidebecausetheairthereismuchfresherthan___inthecity.A.onesB.oneC.thatD.those易误辨析:it/one/thatBACthehousethattheParkersboughtahousetheair

Doyouwanttoliveanother100yearsormore?Someexpertssaythatscientificadvanceswillonedayenablehumanstolasttensofyearsbeyondwhatisnowseenasthenaturallimitofthehumanlifespan…Thereisagreatpushsothatpeoplecanlivefrom120to180years,”hesaid.“Somehavesuggestedthatthereisnolimitandthatpeoplecouldliveto200or300or500years.”However,manyscientistswhospecializeinageingaredoubtfulaboutit.(04全国D)

Theunderlined“it”refersto____A.agreatpushB.theideaoflivingbeyondthepresentlifespanC.theideaoflivingfrom200to300yearsD.theconservativeestimateReadingcomprehension___wasmostimportanttoher,shetoldme,washerfamily.A.ItB.ThisC.WhatD.As---___noad.duringTVplays.---Greatmore!Ican’ttoleratethoseannoyingadsappearingeveryseveralminutes.A.ThereissaidtohaveB.ItissaidtohaveC.ThereissaidtobeD.Itissaidtobe注：ItissaidthatthereisnoadduringTVplays.的变式Howlongdoyousupposeitis_hegotthenews?A.beforeB.whenC.sinceD.afterI’mterriblysorrytohavekeptyouwaitingsolong,butit’lltillbesometime__Tonygetsback.A.beforeB.sinceC.tillD.afterItwillbeseveralmonths__weattendCollegeEntranceExamination,forwhichwehavepreparedyears.A.whenB.untilC.whileD.beforeTranslatethefollowing:过了很久他才回来.2.我们很久后才会见面的.3.我离开这所学校已经很久了.Itwaslongbeforehecameback.Itwillbelongbeforewemeetagain.ItislongsinceIleftthisschool.Itis+时间段+since(过去时)...It+willbe+时间段+before(一般现在时)…It+was+时间段+before(过去时)…易误辨析:六.在一些固定用法中考查

及相关谚语makeit成功，安排在或定在某时间forgetit

别提了，忘了它吧buyit相信Imeanit我认真地blowit犯错，搞砸/错过大好机会Don’tmentionit

别提了，表示不用谢Itdoesn’tmatter没关系It(That)depends

视情况而定Youguessed/gotit你猜着了It’shardtosay很难说It’suptoyoutodosth.由你来决定做某事Takeit/thingseasy放轻松，别紧张Takeone’stime

别着急，慢慢来Takeitforgranted(that)

想当然地认为Takesb/sthforgranted

对……不予重视;不把…当回事it常用的固定搭配

makeit在口语当中相当于succeed,表示:成功、做到、说定、赶上、及时到达如:It'shardtomakeittothetopinshowbusiness.2)在口语中相当于fixthedatefor,表示“约定好时间”如:

—Shallwemeetnextweek?—OK.WejustmakeitnextSaturday.2.buyitYoucouldsayyouwereillbutIdon’tthinkthey’dbuyit.3.Italldepends/thatalldepends

在口语中,相当于ithasn’tbeendecidedyet,表示“那得看情况,还没有定下来”—Areyougoingtothecountrysideforholiday?—It/Thatalldepends.4.It'suptosb.

在口语中,相当于it'sdecidedbysb.表示“由……决定,由……负责,取决于……”

—Shallwegooutfordinner？

—It'suptoyou.5.Takeitforgranted(that)

想当然地认为Ijusttakeitforgrantedthathe’dalwaysbearound.Takesb/sthforgranted

对……不予重视;不把…当回事Herhusbandwasalwaysthereandshejusttookhimforgranted.1.Itisnevertoooldtolearn.

活到老,学到老。2.Itisnousecryingoverspilt(溢出的)milk.

覆水难收。3.Itneverrainsbutitpours(泼水).

不鸣则已,一鸣惊人。4.

It

rainscatsanddogs(倾盆大雨)Proverbs(谚语)with“It”七.用于强调结构Itis/was+被强调部分+that/who...+其他成分ImetTom

inthestreet

yesterday.强调结构的一般疑问句型：

Is/was+it+所强调的部分+that/who…?WasityouthatmetTominthestressyesterday?强调结构的特殊疑问句型：

疑问词+is/was+it+that/who…?

Whowasitthatyoumetinthestreetyesterday?WherewasitthatyoumetTomyesterday?...not…until….句式用于强调句型要注意否定词not前移构成：Itis/wasnotuntil+被强调部分+that...Idid’tgotobaduntil10o’clockyesterdayevening.Itwasnotuntil10o’clockyesterdayeveningthatI

wenttobad.Ididn’trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.ItwasnotuntilshetookoffherdarkglassesthatI

realizedshewasafamousfilmstar.㈡.引导词it

1.Itis+被强调部分+that...

使用该句型有以下几点请注意：

①强调句的谓语is或was永远用单数.

ItwasyesterdaythatImetyourfatherinthestreet．

②不管被强调部分是哪种状语，只能用that连接，不得使用where、when等连词.

ItwasinthestreetthatImetyourfatheryesterday．③被强调部分为人时，可用who(主格或宾格)和whom(宾格)代替that，用that也行。Itwasyourfatherthat/whom/whoImetinthestreetyesterday．2)ItwasIthat/whometyourfatherinthestreetyesterday．

④强调句中也要注意主谓一致、人称一致和否定转移的问题。

Itistheywhoareourfriends．

Itwasnotuntilteno'clockthatwegothomelastnight．

⑤注意不要混淆强调句和其他从句。Itiswas…that…为强调句标志，去掉后仍可组成一个完整的句子，只是没被强调,而其他从句一般不具备这一特征。

比较：

1)Itwasteno'clockwhenwegothomelastnight．我们昨晚到家时已十点了。

2)Itwasatteno'clockthatwegothomelastnight．我们昨晚是在十点到家的。

要点点拔第一句不是强调句，when不可改为that,因为去掉itwas和that后，只能组成“Wegothometeno'clocklastnight．”这样一个不完整的句子；第二句是强调句，that不可改为when．2.Itisnotuntil+被强调部分+that...

该句型也是强调句型。主要用于强凋时间状语，译成汉语＂直到．．．才．．．＂，可以说是not...until...的强调形式。

ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar.

=NotuntilshetookoffherdarkglassesdidIrealizeshewasafamousfilmstar.

=Ididn’trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.Itwasnot_____shetookoffherdarkglasses____Irealizedshewasafamousfilmstar.A.when,thatB.until,whenC.until,thatD.when,then2)Itwasnotuntil____that____topreparehislessons.A.didhisfathercomein,theboybeganB.didhisfathercomein,didtheboybeginC.hisfathercamein,didtheboybeginD.hisfathercamein,theboybeganC

D

Itistheabilitytodothejob__mattersnotwhereyoucomefromorwhatyouare.A.oneB.thatC.whatD.itItis/was+被强调的部分+that/who+句子其他成分强调句型高考真题

Itwas___backhomeaftertheexperiment.A.notuntilmidnightdidhegoB.untilmidnightthathedidn’tgoC.notuntilmidnightthathewentD.untilmidnightwhenhedidn’tgo

Inwhichplayis___yourbrotherappears?A.thatwhereB.thiswhenC.itthatD.itwhere

Itwasinthelab___wastakenchargeofbyProfessorZhang___theydidtheexperiment.A.where;thatB.which;whereC.that;whereD.which;that强调句型被强调的部分是notuntil引导的时间状语?强调句型用于疑问句,被强调的部分是特殊疑问词或从句引导词?Inwhichplayisitthat…?Itis…that…Isit…that…?Idon’tknowinwhichplayitisthat…强调句型和各种从句高考热点?【2013天津】11.Itwasnotuntilneartheendoftheletter

shementionedherownplan.A.thatB.whereC.whyD.when【解析】考查强调句。此处考查固定句型not…until的强调句，其句型结构为：Itwasnotuntil…that+句子。故答案选A。【2013新课标II卷】10.Itwasonlyafterhehadreadthepapers

Mr.Grossrealizedthetaskbeforehimwasextremelydifficulttocomplete.whenB.thatC.whichD.what【解析】考查强调句。题干可还原为：Mr.Grossrealizedthetaskbeforehimwasextremelydifficulttocompleteonlyafterhehadreadthepapers，即可判断为强调句，因此填that。【2013重庆】27.Itwaswiththehelpofthelocalguide

themountainclimberwasrescued.A.whoB.thatC.whenD.how【解析】考查强调句。该句可还原为themountainclimberwasrescuedwiththehelpofthelocalguide，故可知为强调句，答案选B。走进高考1.(2005,全国Ⅲ)ThedoctoradvisedVesastronglythatsheshouldtakeaholiday,but__didn’thelp.

A.it

B.sheC.whichD.he

正确答案：A。根据句意：医生的建议未起作用。it代替整个句子。

2.(2004,全国Ⅲ)-Doyoulike__here?-Oh,yes.Theair,theweather,thewayoflife.Everythingisnice.A.thisB.theseC.thatD.It

正确答案：D。根据下文，提问者不能确定被问者喜欢什么，it用于不确定指代或模糊指代。

3.(2000,上海)Someoneisringingthedoorbell.Goandsee__.A.whoisheB.whoheisC.whoisitD.whoitis

正确答案：D。说话时，不知道对方的性别。注意在宾语从句中需用陈述语序。

4.(2007,全国Ⅰ)–Haveyouheardthelatestnews?–No,what__?A.isitB.isthereC.aretheyD.arethose

正确答案：A。it指代上文提及的latestnews。5.(2006,全国Ⅰ)IfIcanhelp__,Idon’tlikeworkinglateintothenight.A.soB.thatC.itD.them

正确答案：C。help是“阻止、避免”的意思，it指代下文的事情。6.(2002,北京)-Hewasnearlydrownedonce.-Whenwas_?-__wasin1998whenhewasinMiddleSchool.A.that,ItB.this,ThisC.this,ItD.that,This

正确答案：A。it指时间。

7.(2005，浙江)We’vebeenlookingatthehousesbuthaven’tfound__welikeyet.

A.oneB.onesC.itD.them

正确答案：A。表示任意一幢房子。

8.（2005，江苏）I’mmovingtothecountrysidebecausetheairthereismuchfresherthan__inthecity.

A.onesB.oneC.thatD.those

正确答案：C。分析语境和逻辑关系可以知道：该空指代theair，且有inthecity后置定语修饰。9.(2004,北京)TheForeignMinistersaid,“__ourhopethatthetwosideswillworktowardspeace.A、ThisisB、ThereisC、ThatisD、Itis

正确答案：D由句意易知：that从句是真正的主语;it为形式主语。10.

(2005,上海)____intheregulationsthatyoushouldnottellotherpeoplethepasswordofyoure-mailaccount.A.WhatisrequiredB.WhatrequiresC.ItisrequiredD.Itrequires

正确答案：C。it为形式主语，在此结构中done为required/suggested/demanded/recommended等时，从句必须用should+动词原形，且should可以省略。11.(2004,上海春)Itwasfoolishofhimto__hisnotesduringthatimportanttest,andasaresult,hegotpunished.A.sticktoB.refertoC.keeptoD.pointto

正确答案：B。短语辨析题，referto有“参考”的意思，符合句意。12.(2006,全国Ⅱ)Itisno__arguingwithBillbecausehewillneverchangehismind.A.useB.helpC.timeD.way

分析：正确答案：A。为固定结构。13.(2007,天津)Hedidn’tmake__clearwhenandwherethemeetingwouldbeheld.

A.thisB.thatC.itD.these

正确答案：C。it为形式宾语，clear后的从句为真正的宾语。14.(2006,湖南)AsthebusiestwomaninNorton,shemade__herdutytolookafteralltheotherpeople’saffairsinthattown.

A.thisB.thatC.oneD.it

正确答案：D。真正宾语为不定式。

15.(2005,江苏)–Don’tyouthinkitnecessarythathe__toMiamibuttoNewYork?–Iagree,buttheproblemis__hehasrefusedto.willnotbesent;thatB.notbesent;thatC.shouldnotbesent;whatD.shouldnotsend;what

正确答案：B。表示“理应如此”需用should＋动词原形，should可以省略。在做it形式宾语和形式主语的复合句中如果从句表示的是“惊奇、惋惜或者理应如此”等含义时，需用should＋动词原形，should可以省略。16、(2004,全国Ⅰ)Ilike__intheautumnwhentheweatherisclearandbright.A、thisB、thatC、itD、one

正确答案：C。love/enjoy/hate和like的用法相同，后接宾语从句时需用it作形式宾语，宾语从句后置。17、(2003,上海)Iwouldappreciateit__youcallbackthisafternoonforthedoctor’sappointment.A、until

B、if

C、when

D、that正确答案：B。18.

(1998，上海)Don’t__thatallthosewhogetgoodgradesintheentranceexaminationwillprovetobemostsuccessful.A.takeasgrantedB.takethisforgrantedC.takethatforgrantedD.takeitforgranted

正确答案：D。takeitforgrantedthat…意为：想当然的认为某事。it为形式宾语，真正的宾语为that从句。另外我们也应该注意：depend(rely)onit（相信某事）和seetoit（负责某事）的用法。

19.(2008,全国Ⅱ)ItwasinNewZealand__ElizabethfirstmetMr.Smith.A.thatB.howC.whichD.when

正确答案：A。将itwas去掉句子结构完整，易知是考查it的强调句型。20.(2004,福建)Itwaswithgreatjoy__hereceivedthenewsthathislostdaughterhadbeenfound.

A.becauseB.whichC.sinceD.that正确答案：D。21.(1997,全国)Wasit__thatIsawlastnightattheconcert?A.youB.notyouC.yourselfD.thatyourself

正确答案：A。强调句型的一般疑问式的基本结构为：Is/Wasit+被强调部分+that…将该句恢复为陈述语序，去掉Itis/was…that结构，易判断是强调you的强调句型。22.Is__student__wascaughtsmokingintheclassroom?A.itthat,thatB.thatit,itC.itit,thatD.itwhich,that

正确答案：A。23.(2004,上海)Why!Ihavenothingtoconfess.__youwantmetosay?A.WhatisitthatB.WhatitisthatC.HowisitthatD.Howitisthat

正确答案：A。强调句型的特殊疑问式的基本结构为：wh-+is/wasitthat+其它成分，故选B。24.(2005,山东)-__thathemanagedtogettheinformation?-Oh,afriendofhishelpedhim.

A.Wherewasit

B.WhatwasitC.Howwasit

D.Whywasit

正确答案：C。25.(2007,浙江)It__wehadstayedtogetherforacoupleofweeks__Ifoundwehadalotincommon.

A.was;whenB.wasthat;thatC.wasn’tuntil;whenD.wasn’tuntil;that

正确答案：D。易判断这是考查notuntil的强调形式。

26.(2008，重庆)Itwasnotuntilmidnight__theyreachedthecampsite.

A.thatB.whenC.whileD.as

正确答案：A。27.(2007,山东)–Wheredidyougettoknowher?–Itwasonthefarm_weworked.A.thatB.thereC.whichD.where正确答案：D。答句完整形式应为：ItwasonthefarmwhereweworkedthatIgottoknowher.28.-Whomadesuchastupidmistake?-__Tom.A.ItwasB.HewasC.ThatwasD.Therewas

正确答案：A。答句完整形式应为：ItwasTomwhomadesuchastupidmistake.29.Itwastheuniversity__hewasteaching__senthimtoAmerica.A.which;thatB.where;thatC.that;whichD.that;had

正确答案：B。本题是考查：itwas+university+引导的定语从句+that…。30.(2007,陕西)Itisnotwhoisrightbutwhatisright__isofimportance.

A.whichB.itC.thatD.this正确答案：C。本题是考查强调句型和名词性从句连用。31.(2006,辽宁)Itwasafterhegotwhathehaddesired__herealizeditwasnotsoimportant.

A.thatB.whenC.sinceD.as

正确答案：A。本题是考查强调句型和状语从句连用。32.ItmighthavebeenTom__boughtJohnanewpenyesterday.A.whatB.sinceC.thatD.then正确答案：C。去掉Itmighthavebeen…that句子仍然是完整的，所以选C。33、(2008,北京)I’msorryyou’vebeenwaitingsolong,butit’llstillbesometime__Briangetsback.

A.beforeB.sinceC.tillD.after正确答案：A。Itbe+时间+before…表示过了一段时间才……