全面总结It用法及相关语境练习

1、全面总结口用法及相关语境练习用法第一类：It充当句子的形式主语代指不定式t动名词及t从句。备注It难怪例：Ittt她学习如此勤奋，难怪她如此优秀。口语中，前的t经常省略；Itt某人做某事t令人遗憾。例tttttt他没有好好利用这次机会真是太可惜了！此类句型中的名词还有：It做i事是某ttdosth人的责任。例:Itesponsibility/dutytotteoftheelde：ly尊重照顾老年人是我们每个人的义务职责。Itset某人倍感高t./tha兴/荣幸做某事。例：Ittu：togiveaspeechtt我很荣幸在此做关于创建和谐校园的演讲！例：It有朋自远方来，不亦乐乎。5.ltis/

2、wasthe+序数词+timeforsb.todo/thatsb.have/haddonesth某人第x次做某事。例：Itis/wasthefirsttimethathehas/hadtriedaski,butheis/wasdoingwell.这是他第一次尝试滑雪，但他表现很棒。此句型中可用This代替It;that从句的时态注意前后一致。6.Itisadj.forsb.todosth./thatcl.Itisadj.ofsb.todosth./thatc某人做某事怎样。例:ItisquitenecessaryforustoreaddifferentEnglishmaterialstoenl

3、argeourvocabulary.=Itisquitenecessarythatwe(should)readdifferentEnglishmaterialstoenlargeourvocabulary.为了扩大我们的词汇量，我们必须阅读不同的英语材料。例：Itiswiseofparentstoreadbed-timestoriesfortheirchildrenbeforesleep.=Parentsarewisetoreadbed-timestoriesfortheirchildrenbeforesleep.父母亲睡前给孩子讲故事是非常智慧的行为。1)此句型中的形容词还有很多，如：exc

4、iting,happy,surprising,terrible,common,clear,natural,important等o2)当形容词是描述人的性质，品行，性格时，用ofsb.如：nice，kind,right,wrong,clever,stupid,careful,careless等。Itisworthwhiletodo/doingsth.某事值得做。例：Itisworthwhiletoread/readingDickensbooks.worth后面主动形式表被动。=Sth.isworthdoing.=Sth.isworthyofbeingdone/tobedone.=Dickensb

5、ooksareworthreading.=Dickensbooksareworthyofbeingread/toberead.狄更斯的书籍值得一读。worthy后接tobedone或beingdone。Itisnouse/nogooddoingsth故某事无益/不好。例：Itisnousearguingwithhim.和他争吵没用。例：Itisnogoodworryingaboutit.没必要担心此事。Itis+过去分词(said/reported/announced/believed/acknowledged/expected/supposed/known)+thatcl.据说/据报道/据宣

6、布大家公认/预料/设想/知道例：Itissaidthatthisfluiscausedbyaspecialvirus.=Thisfluissaidtobecausedbyaspecialvirus.这种流感据说是由一种特殊的病毒引起的。该句型可变化为sb./sth.issaid/reported/announced/believed/expected/supposed/knowntodo（不定式根据具体表达而变化）10.Itcounts/mattersmuchthatcl.Itdoesntmatterwhethersb.dosth.ornot.很重要/有关系例：Itcounts/matters

7、alotthatyoucanleaveagoodimpressioninyourfirstinterview.初次面试留下好印象十分重要。11.Ithappened/chancedthatcl.=Sb.happened/chancedtodostl碰巧某人做某事例：Ithappened/chancedthatIwasoutwhenhecame.=Ihappened/chancedtobeoutwhenhecame.他来的时候我碰巧出去了。12.Itoccurs/comestosb.thatcl.Itturnsoutthat某人突然想到.;最终证明.例：ItoccurredtomethatIsh

8、ouldhaveatry.我突然感到自己应该试一试。有时人们也说Anideaoccured/cametomethatIshouldhaveatry.B.It用法第二类：It充当句子的形式宾语代指不定式todo及that从句。13.Sb.feel/think/consider/find/believe/supposeit+adj./n.+todo/thatcl某人认为做某事怎样例：WeconsideritagreathonorthatourcountrycanholdtheWorldExpo.=WeconsideritagreathonorforourcountrytoholdtheWorldE

9、xpo.我们认为在自己的国家举办世博会是一种荣誉。14.Sb.takeitforgrantedtodosth./that（某人认为某事理所当然例：Weshouldnttakeitforgrantedthatparentsshoulddoeverythingforus.我们不要理所当然认为父母亲该为我们做一切事情。15.Sb./Sth.makeit+adj./n.+todo/thatcl某人/某事使怎样例:Ourschoolmakesitaruletowearschooluniformsatschool.学校规定必须穿校服上学。16.Sb.seetoitthat+cl.保证，确保例：Please

10、seetoitthatkidmustbeawayfromfire.17.Sb.depend/relyonitthat+cl相信例:Youcandependonitthatwewontmissthisparty.18.Sb.like/hate/dislikeitthat/when+cl.Sb.appreciateitif/when+cl.Idislikeitwhenyouwhistle.我不爱听你吹口哨。Wereallyappreciateitwhensheofferedtohelp.她来帮忙了，我们十分感激。能用于此结构的动词不多，常见的还有enjoy,love,prefer等。It用法第三类

11、：It在指代时间意义时引导的特定句型。Itis/washightimeforsb.todosth./thatcl某人该做某事了例：Itistimetobeginourdiscussion.=Itistimethatweshouldbegin/beganourdiscussion.我们讨论的时间到了。that从句用一般过去式或shoulddo,属于虚拟语气表达，其中should不省。Ittakessb.+时间段+todosth.=Ittakes+!寸间段+forsb.todosth.某人花多少时间做某事例：Usuallyitwilltakeusaboutoneweektogetusedtoane

12、wteachersteaching.=Usuallyitwilltakeaboutoneweekforustogetusedtoanewteachersteaching.通常需要大约一个星期我们才能适应新老师的教学。该句型也可改为：Sb.spendtime(in)doingsth./onsth.故我们可以说：Weusuallyspendaboutoneweekgettingusedtoanewteachersteaching.Itwas/willbetook/willtake+时间段+before过多久才例：Itwaslongbeforetheyfoundouttheirwayoutinthe

13、rainforest.他们用了很久时间才走出热带森林。例：Itwillnotbelongbeforewesaygoodbyetoourhighschoollife.我们很快就要告别高中生活了。该句型主要使用一般过去时和一般将来时；before后的状语从句用一般现在时表将来。Itis/hasbeen+时间段+sincecl.自从以来有多久例：ItisagessinceIenjoyedmyselflast.我很久没有这么开心了。Since后面的动词一定要用一般过去式。23.ltwas/willbe+时间点+whencl.某人在某时做某事例：Itwas10oclockwhenthetrainleft

14、thestation.火车在十点离站。此处it表时间。C.It用法第四类：It的其他常用特定句型24.Itis/was+被强调的部分+that/who+原句其他部分.Itis/was+被强调的人+that/who+原句其他部分.就是例：Itwasnotuntil1978thatChinabeganitseconomicreform.中国在1978年才开始经济改革。Itlooks/seems/appears/feelslikethatcl./asifcl.看起来似乎/好像/例：Itseemsthat/asifitisgoingtosnowwiththefreezingwindintheair.寒

15、风刺骨，好像要下雪了。asif/that引导表语从句。Whenitcomesto，主句.当我们谈道的时候,.。例：WhenitcomestoChinesefolkmusic,wecanthelpthinkingofafamoussinger,SongZuying.谈到中Whenitcomesto.,=Comingto.,国民乐时，我们不免会想到一位著名的歌唱家宋祖英。二.读下面的文章，并划记理解相关It句型。（全篇13个it）Itwasaniceautumnafternoon.PresidentObamacametovisitFudanUniversityofShanghai.Hesaidit

16、wasagreathonorforhimtocometoChina.HealsostatedthatitwashisfirsttimetoseethismajesticcountryanditwashishopenotonlytoanswerthestudentsquestionsbutalsototakequestionsbacktotheUS.HeevenlearnttospeaksomeShanghaidialect,whichleftahumorousandeasy-goingimpressionontheaudience.Itseemedthatheenjoyedthetimewit

17、hthoseuniversitystudents.ItisrecognizedthatShanghaihasavitalplaceinbuildingtherelationshipbetweenChinaandUS.Itwashere,37yearsago,thatShanghaiCommunique联合公扌报）openedthedoortotheengagementbetweenthetwocountries.Sincethen,AmericastiestothiscitytoChinahavestretchedfurther.Actually,therelationshipcandateb

18、ackto1784,whenGorgeWashingtonorderedashiptopursuetradewiththeQingDynasty.ThepartnershipwasstrengthenedintheWorldWarII.ItisknownthatAmericanpeoplefoughttogetherwithChinesepeopleagainsttheFascistandattainedthegreatsuccess.20yearslater,bothofthetwocountriesfounditnecessaryandimportanttorecontinuethefri

19、endshipsincewearetwobigcountriesintheworld.Itshouldbeourresponsibilitytodevelopbetterfriendshipinordertocreateabetterworld.AsanoldChinesesayinggoes,“Considerthepast,andyoushallknowthefuture”.IttookbothcountriesalongtimetounderstandeachotherandMr.ObamaexpressedthatitishightimethatChinaandtheUSAshould

20、cooperateinamoreactiveway.Healsosaiditwonttakelongbeforetheworld,especiallytheUSAgetsridoftheinfluenceoftheeconomiccrisis.（改编自PresidentObama在复旦大学的演讲稿）Expressthesentencesinanotherwayusingit.Playingbasketballafterschoolisgreatfun.Tomasteraforeignlanguageisachallengingtask.TomemorizetheEnglishwordseverydaytakesusonlyafewminutes.Theideahasprovedtobepractical.Thewaytur