it作形式主语、形式宾语、it开头的短语省公共课一等奖全国赛课获奖课件.pptx

语法辅修刘爽第1页2Strength&courageIt takes strength to fit in.It takes courage to stand out.It takes strength to feel a friends pain.It takes courage to feel your own pain.It takes strength to hide your own pain.It takes courage to show them.It takes strength to survive.It takes courage to live.适应环境需要力量。适应环境需要力量。与众不一样需要勇气。与众不一样需要勇气。感觉朋友痛需要力量。感觉朋友痛需要力量。感觉自己痛需要勇气。感觉自己痛需要勇气。隐藏自己痛需要力量。隐藏自己痛需要力量。展示自己痛需要勇气。展示自己痛需要勇气。生存需要力量。生存需要力量。生活需要勇气。生活需要勇气。第2页It作形式主语作形式主语动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首。第3页10/10/It作形式主语1.It+be+形容词+主语从句ItisuncertainwhetherhecancometoJennysbirthdaypartyornot.第4页10/10/It作形式主语2.It+be+名词词组(+forsb.)+主语从句这类名词有：afact,apity,ashame,anhonor，aquestion等。Itsapitythatyoumissedtheexcitingfootballmatch.Itremainsaquestionwhetherhewillcomeornot.第5页10/10/It作形式主语3.It+be+过去分词+主语从句这类过去分词有：announced,believed,expected,hoped,decided,reported,said,shown等。Itisreportedthat16peoplewerekilledintheearthquake.Itisnotdecidedwhowillgivetheoperationtothepatient.第6页10/10/It作形式主语4.It+不及物动词(seem,appear,happen,occur等)+主语从句Itseemedthathedidnttellthetruth.IthappenedthatIwasoutwhenhecalled.ItneveroccurredtomethatIwouldtraveltoAmerica.Itappearsthattheywontbeabletocomeatall.第7页10/10/It作形式主语5.It+be+形容词+（forsb.）+动词不定式惯用形容词easy,difficult,hard,important,possible，wise等作表语Itsnecessaryfortheyoungtomastertwoforeignlanguages.Itisunwisetogivethechildrenwhatevertheywant.第8页10/10/It作形式主语6.It+be+形容词+ofsb.+动词不定式形容词：kind,nicestupid,clever,foolish,polite,impolite,silly,selfish,considerate等Itsverykindofyoutohelpmewiththework.=Youarekindtohelpme.Itseemedselfishofhimnottosharehisdictionarywithothers.=Heseemedselfishnottosharehisdictionarywithothers.第9页It作形式主语7.It+be+名词词组+动词不定式，如：Itisnotagoodhabittostayuptoolate.10/10/第10页It作形式主语8.It+be+名词或形容词+动名词，名词和形容词：good,nogood,nouse,awasteof,useless,senseless,nohope,hopeless等Itsawasteoftimetalkingtoheranymore.Itisnousearguingaboutthematterwithhim.10/10/第11页It作形式主语9.It+take(sb.)+时间（金钱）+动词不定式Ittooktheworkersalmostthreeyearstofinishbuildingthedam.Itwilltakeawholedaytogettothetopofthemountainonfoot.10/10/第12页练习题1.Infact，isahardjobforthepolicetokeeporderinanimportantfootballmatch.A.thisB.thatC.thereD.it10/10/It+be+名词词组（名词词组（+for sb.）+动词不定式动词不定式D第13页练习题2.Itisnevertoolatetolearn,_?A.isitB.isntitC.doesitD.doesntit10/10/BIt+be+形容词形容词+动词不定式动词不定式第14页练习题3.isafactthatEnglishisbeingacceptedasaninternationallanguage.A.ThereB.ThisC.ThatD.It10/10/It+be+名词词组名词词组+主语从句主语从句D第15页练习题4._willtakeyoualotoftimetofindhiminthecrowd.A.ItB.IC.WeD.They10/10/It+take(sb.)+时间（金钱）时间（金钱）+动词不定式动词不定式A第16页练习题1.(1)_isknowntousallisthatEnglishisausefullanguage.(2)_isknowntousall,Englishisausefullanguage.(3)_isknowntousallthatEnglishisausefullanguage.A.ItB.WhatC.ThatD.As10/10/BDAIt+be+过去分词过去分词+主语从句主语从句 第17页练习题2.(1)Itiskind_youtodoso.(2)Itiseasy_youtodoso.A.toB.forC.ofD.with10/10/CBIt+be+形容词形容词+for sb.+动词不定式动词不定式It+be+形容词形容词+of sb.+动词不定式动词不定式第18页练习题3.(1)_isafactthatEnglishisbeingacceptedasaninternationallanguage.(2)_isnoneedforustodiscusstheproblemagainsinceithasalreadybeensettled.(3)_isunnecessaryforyoutoexplainittousanymore.A.ThisB.ThatC.ItD.There10/10/CDCIt+be+名词词组名词词组+主语从句主语从句It+be+形容词形容词+（for sb.）+动词不定式动词不定式第19页以以It开头句型开头句型第20页以it开头句型1.it+特定动词+asif从句特定动词：appear,seem等。Itappearsasifyouareverytired.10/10/第21页以it开头句型2.ithasbeen/is+一段时间+since从句ItissixyearssinceIbegantoworkhere.IthasbeensixyearssinceIworkedhere.10/10/第22页以it开头句型3.it+be+一段时间+before从句Itwontbealongtimebeforewefinishcooking.Itwasfourdaysbeforetheyfoundthelostchild.10/10/第23页以it开头句型4.itis(high)time+that从句=itis(high)timeforsb.todosth从句谓语要用普通过去时，也可用shoulddoItishightimethatIwenttoseemymotherinthehospital.Itistimeforyoutodoyourhomework.10/10/第24页以it开头句型5.itis/was+强调内容+that/who从句ItisinthestreetthatIcameacrossMr.Li.Itwasmyfriendwhopickedmeupatthestation.10/10/第25页练习题1.(1)Itwaseightoclock_helefthere.(2)Itisateightoclock_hewillleavehere.(3)Itiseighthours_helefthere.(4)Itwillbeeighthours_wemeetagain.A.whenB.thatC.beforeD.since10/10/ABDC第26页练习题2.(1)Itsgood_youtotakeawalkaftersuppereveryday.(2)Itwasreallystupid_himtorefusetheinvitation.A.ofB.toC.forD.at10/10/CA第27页练习题3.(1)WasitonNov.lst,_thefamousscientistwasborn?(2)WasitNov.1st,_thefamousscientistwasborn?A.inwhichB.onthatC.thatD.when10/10/CD第28页练习题4.(1)Itisabouttendays_hereturnedhome.(2)Itwastendaysago_helefthome.A.beforeB.thatC.sinceD.when10/10/CD第29页练习题5.(1)ItwasnotuntilIhadreadyourletter_thetruth.(2)NotuntilIhadreadyourletter_thetruth.A.didIlearnB.IdidntlearnC.thatIlearnedD.thatIhadlearned10/10/CA 第30页练习题10/10/有必要把这一切都告诉他父亲吗?熬夜没有好处。很显然，他读过这本书。他说什么没关系。Isitnecessarytotellhisfathereverything?Itsnogoodsittinguptoolate.Itisquiteclearthathehasreadthebook.Itdoesntmatterwhathesays.第31页It作形式宾语作形式宾语当不定式（短语）、动名词（短语）或从句在某个句子中作宾语时，惯用it作形式宾语.第32页It作形式宾语有宾语补足语情况10/10/第33页It作形式宾语it代替不定式短语表示“感觉”/“对待”动词+it+形容词/名词+不定式短语Ifinditpleasanttoworkwithhim.Theyfeltitdifficulttofinishtheworkinsuchashorttime.Shethinksitherdutytohelpus.Ithinkitmyhonortobeinvitedtospeakhere.TomdidntfinditdifficulttowritelettersinChinese.Allthesenoisesmadeitimpossibleformetogoonwiththework.10/10/第34页It作形式宾语it代替动名词短语Theprofessorconsidersitnogoodreadingwithoutunderstanding.Doyouconsideritanygoodtryingagain?Hefoundituseless(nouse)arguingwithhim.Hethoughtitabsolutelysenselessattemptingtheimpossible.Idontthinkitworthwhilegoingtosuchaplace.10/10/第35页It作形式宾语it代替宾语从句Weallthoughtitapitythattheconferenceshouldhavebeencancelled.Itookitforgrantedthattheywerenotcoming.Illseetoitthateverythingisreadyintime.10/10/第36页练习题1.Idontthink_possibletomasteraforeignlanguagewithoutmuchwork.A.thisB.thatC.itsD.it10/10/Dit代替不定式短语代替不定式短语 第37页It作形式宾语没有宾语补足语情况10/10/第38页It作形式宾语1.动词itwhen/if 从句常见动词appreciate,enjoy,like,dislike,love,hate,preferWe would much appreciate it if you could do us that favor.Id prefer it if I didnt have to finish the work.10/10/第39页It作形式宾语2.动词+it+that从句。常见动词like,take,have,putI take it that they will succeed sooner or later.The newspapers have it that some Japanese firms have gone bankrupt.10/10/第40页It作形式宾语3.动词+it+介词短语+that从句。常见短语bring it to ones attention;owe it to sb;take it for granted I owe it to you that I finished my work in time.Dont take it for granted that they will support you.10/10/第41页It作形式宾语4.动词+介词(短语)+it+that从句。常见介词answer for,depend on,rely on,insist on,look to,see to,stick to Ill see to it that everything is ready in time.You may depend on it that Tom will help you with your English.10/10/第42页5.动词+it+过去分词+从句。常见于几个能够带过去分词作宾语补足语动词之后。I heard it said that that factory was founded in 1995.They havent made it known where the meeting is to take place.10/10/第43页It作形式宾语1.I would appreciate it_ you call back this afternoon for the doctors appointment.A.until B.if C.when D.that10/10/B第44页练习题2.Wealltook_forgrantedthathewouldagreewithus.A.itB.himC.thatD.what10/10/A第45页It作形式宾语3.Why dont you bring _ to his attention that you are too ill to go on working?A.this B.you C.him D.it10/10/D第46页