全面總結(jié)It用法及相關(guān)語境練習(xí)

1、全面總結(jié)口用法及相關(guān)語境練習(xí)用法第一類：It充當(dāng)句子的形式主語代指不定式t動(dòng)名詞及t從句。備注It難怪例：Ittt她學(xué)習(xí)如此勤奮，難怪她如此優(yōu)秀。口語中，前的t經(jīng)常省略；Itt某人做某事t令人遺憾。例tttttt他沒有好好利用這次機(jī)會(huì)真是太可惜了！此類句型中的名詞還有：It做i事是某ttdosth人的責(zé)任。例:Itesponsibility/dutytotteoftheelde：ly尊重照顧老年人是我們每個(gè)人的義務(wù)職責(zé)。Itset某人倍感高t./tha興/榮幸做某事。例：Ittu：togiveaspeechtt我很榮幸在此做關(guān)于創(chuàng)建和諧校園的演講！例：It有朋自遠(yuǎn)方來，不亦樂乎。5.ltis/

2、wasthe+序數(shù)詞+timeforsb.todo/thatsb.have/haddonesth某人第x次做某事。例：Itis/wasthefirsttimethathehas/hadtriedaski,butheis/wasdoingwell.這是他第一次嘗試滑雪，但他表現(xiàn)很棒。此句型中可用This代替It;that從句的時(shí)態(tài)注意前后一致。6.Itisadj.forsb.todosth./thatcl.Itisadj.ofsb.todosth./thatc某人做某事怎樣。例:ItisquitenecessaryforustoreaddifferentEnglishmaterialstoenl

3、argeourvocabulary.=Itisquitenecessarythatwe(should)readdifferentEnglishmaterialstoenlargeourvocabulary.為了擴(kuò)大我們的詞匯量，我們必須閱讀不同的英語材料。例：Itiswiseofparentstoreadbed-timestoriesfortheirchildrenbeforesleep.=Parentsarewisetoreadbed-timestoriesfortheirchildrenbeforesleep.父母親睡前給孩子講故事是非常智慧的行為。1)此句型中的形容詞還有很多，如：exc

4、iting,happy,surprising,terrible,common,clear,natural,important等o2)當(dāng)形容詞是描述人的性質(zhì)，品行，性格時(shí)，用ofsb.如：nice，kind,right,wrong,clever,stupid,careful,careless等。Itisworthwhiletodo/doingsth.某事值得做。例：Itisworthwhiletoread/readingDickensbooks.worth后面主動(dòng)形式表被動(dòng)。=Sth.isworthdoing.=Sth.isworthyofbeingdone/tobedone.=Dickensb

5、ooksareworthreading.=Dickensbooksareworthyofbeingread/toberead.狄更斯的書籍值得一讀。worthy后接tobedone或beingdone。Itisnouse/nogooddoingsth故某事無益/不好。例：Itisnousearguingwithhim.和他爭(zhēng)吵沒用。例：Itisnogoodworryingaboutit.沒必要擔(dān)心此事。Itis+過去分詞(said/reported/announced/believed/acknowledged/expected/supposed/known)+thatcl.據(jù)說/據(jù)報(bào)道/據(jù)宣

6、布大家公認(rèn)/預(yù)料/設(shè)想/知道例：Itissaidthatthisfluiscausedbyaspecialvirus.=Thisfluissaidtobecausedbyaspecialvirus.這種流感據(jù)說是由一種特殊的病毒引起的。該句型可變化為sb./sth.issaid/reported/announced/believed/expected/supposed/knowntodo（不定式根據(jù)具體表達(dá)而變化）10.Itcounts/mattersmuchthatcl.Itdoesntmatterwhethersb.dosth.ornot.很重要/有關(guān)系例：Itcounts/matters

7、alotthatyoucanleaveagoodimpressioninyourfirstinterview.初次面試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.他來的時(shí)候我碰巧出去了。12.Itoccurs/comestosb.thatcl.Itturnsoutthat某人突然想到.;最終證明.例：ItoccurredtomethatIsh

8、ouldhaveatry.我突然感到自己應(yīng)該試一試。有時(shí)人們也說Anideaoccured/cametomethatIshouldhaveatry.B.It用法第二類：It充當(dāng)句子的形式賓語代指不定式todo及that從句。13.Sb.feel/think/consider/find/believe/supposeit+adj./n.+todo/thatcl某人認(rèn)為做某事怎樣例：WeconsideritagreathonorthatourcountrycanholdtheWorldExpo.=WeconsideritagreathonorforourcountrytoholdtheWorldE

9、xpo.我們認(rèn)為在自己的國(guó)家舉辦世博會(huì)是一種榮譽(yù)。14.Sb.takeitforgrantedtodosth./that（某人認(rèn)為某事理所當(dāng)然例：Weshouldnttakeitforgrantedthatparentsshoulddoeverythingforus.我們不要理所當(dāng)然認(rèn)為父母親該為我們做一切事情。15.Sb./Sth.makeit+adj./n.+todo/thatcl某人/某事使怎樣例:Ourschoolmakesitaruletowearschooluniformsatschool.學(xué)校規(guī)定必須穿校服上學(xué)。16.Sb.seetoitthat+cl.保證，確保例：Please

10、seetoitthatkidmustbeawayfromfire.17.Sb.depend/relyonitthat+cl相信例:Youcandependonitthatwewontmissthisparty.18.Sb.like/hate/dislikeitthat/when+cl.Sb.appreciateitif/when+cl.Idislikeitwhenyouwhistle.我不愛聽你吹口哨。Wereallyappreciateitwhensheofferedtohelp.她來幫忙了，我們十分感激。能用于此結(jié)構(gòu)的動(dòng)詞不多，常見的還有enjoy,love,prefer等。It用法第三類

11、：It在指代時(shí)間意義時(shí)引導(dǎo)的特定句型。Itis/washightimeforsb.todosth./thatcl某人該做某事了例：Itistimetobeginourdiscussion.=Itistimethatweshouldbegin/beganourdiscussion.我們討論的時(shí)間到了。that從句用一般過去式或shoulddo,屬于虛擬語氣表達(dá)，其中should不省。Ittakessb.+時(shí)間段+todosth.=Ittakes+!寸間段+forsb.todosth.某人花多少時(shí)間做某事例：Usuallyitwilltakeusaboutoneweektogetusedtoane

12、wteachersteaching.=Usuallyitwilltakeaboutoneweekforustogetusedtoanewteachersteaching.通常需要大約一個(gè)星期我們才能適應(yīng)新老師的教學(xué)。該句型也可改為：Sb.spendtime(in)doingsth./onsth.故我們可以說：Weusuallyspendaboutoneweekgettingusedtoanewteachersteaching.Itwas/willbetook/willtake+時(shí)間段+before過多久才例：Itwaslongbeforetheyfoundouttheirwayoutinthe

13、rainforest.他們用了很久時(shí)間才走出熱帶森林。例：Itwillnotbelongbeforewesaygoodbyetoourhighschoollife.我們很快就要告別高中生活了。該句型主要使用一般過去時(shí)和一般將來時(shí)；before后的狀語從句用一般現(xiàn)在時(shí)表將來。Itis/hasbeen+時(shí)間段+sincecl.自從以來有多久例：ItisagessinceIenjoyedmyselflast.我很久沒有這么開心了。Since后面的動(dòng)詞一定要用一般過去式。23.ltwas/willbe+時(shí)間點(diǎn)+whencl.某人在某時(shí)做某事例：Itwas10oclockwhenthetrainleft

14、thestation.火車在十點(diǎn)離站。此處it表時(shí)間。C.It用法第四類：It的其他常用特定句型24.Itis/was+被強(qiáng)調(diào)的部分+that/who+原句其他部分.Itis/was+被強(qiáng)調(diào)的人+that/who+原句其他部分.就是例：Itwasnotuntil1978thatChinabeganitseconomicreform.中國(guó)在1978年才開始經(jīng)濟(jì)改革。Itlooks/seems/appears/feelslikethatcl./asifcl.看起來似乎/好像/例：Itseemsthat/asifitisgoingtosnowwiththefreezingwindintheair.寒

15、風(fēng)刺骨，好像要下雪了。asif/that引導(dǎo)表語從句。Whenitcomesto，主句.當(dāng)我們談道的時(shí)候,.。例：WhenitcomestoChinesefolkmusic,wecanthelpthinkingofafamoussinger,SongZuying.談到中Whenitcomesto.,=Comingto.,國(guó)民樂時(shí)，我們不免會(huì)想到一位著名的歌唱家宋祖英。二.讀下面的文章，并劃記理解相關(guān)It句型。（全篇13個(gè)it）Itwasaniceautumnafternoon.PresidentObamacametovisitFudanUniversityofShanghai.Hesaidit

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

17、hthoseuniversitystudents.ItisrecognizedthatShanghaihasavitalplaceinbuildingtherelationshipbetweenChinaandUS.Itwashere,37yearsago,thatShanghaiCommunique聯(lián)合公扌報(bào)）openedthedoortotheengagementbetweenthetwocountries.Sincethen,AmericastiestothiscitytoChinahavestretchedfurther.Actually,therelationshipcandateb

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

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

20、cooperateinamoreactiveway.Healsosaiditwonttakelongbeforetheworld,especiallytheUSAgetsridoftheinfluenceoftheeconomiccrisis.（改編自PresidentObama在復(fù)旦大學(xué)的演講稿）Expressthesentencesinanotherwayusingit.Playingbasketballafterschoolisgreatfun.Tomasteraforeignlanguageisachallengingtask.TomemorizetheEnglishwordseverydaytakesusonlyafewminutes.Theideahasprovedtobepractical.Thewaytur