it的用法、常用句型.ppt

it的用法 常用句型 知识梳理 it可以作代词 如人称代词 非人称代词 和引导词 也可以用于强调句式中 还可以用于一些固定表达中 一 it作代词1 用作人称代词 指代 上文提到过的人 事 物或情况等 婴儿 性别不明或没必要区分性别的人或动物 此外 it也可指代未知的人 如 Inmyopinion lifeinthetwenty firstcenturyismucheasierthanitwasusedto Someoneisringingthedoorbell Goandseewhoitis It sJohnonthephone 2 用作非人称代词 指时间 天气 距离或自然现象等 如 Itisonlyhalfanhour swalktothehospital It sabouttwokilometersfromheretothestation Itisrainingheavilyoutside 二 it作引导词1 it作形式主语的常用句型 It be 名词 主语从句 中从句谓语常用 should 动词原形 常用于本句型的主要有apity ashame nowonder noaccident等 如 Itisagreatpitythatheshouldbesogreedy Itisashamethatheshouldattempttoinjurethereputationofanhonestman Itwasnoaccidentthatsuchabookshouldappearinthe18thcentury It be 形容词 主语从句 中从句谓语常用 should 动词原形 或完成时 常用于本句型的形容词主要有impossible strange surprising等 如 Itisimpossiblethatitshouldbeamerecoincidence It sstrangethatsheshouldhavebeenarrestedforstealing Itwassurprisingthatheshouldhavefinishedwritinganovelinonlytwentydays It 动词 宾语或状语 主语从句 常用于本句型的动词主要有please happen等 如 Itpleasedmeverymuchthathesucceeded Itpleasesmethatheshouldwanttotalkwithme ItsohappenedthathehadjustleftforTianjin It 动词的被动语态 主语从句 常用于本句型的动词主要有accept admit allow announce等 如 It sacceptedthattheuniverseisendless Itisgenerallyadmittedthatheisatrustworthyperson Itwasannouncedthatallprisonerswouldbesetfree ItwasannouncedthatthePrimeMinisterwouldspeakontelevisionthatevening 2 it作形式宾语 根据句子结构的需要 人们常用it作形式宾语 而将真正的宾语放在宾语补足语后 常用于这种句型的动词有believe bring consider declare feel find make prove think等 如 Ifinditamazingthatanyonewouldwanttolistentothatmusic Idon tthinkitpossibletomasteraforeignlanguagewithin3months Ifounditworthwhilereadingthisbook it作形式宾语的常用句型 1 动词 it if when从句当enjoy like dislike love hate prefer appreciate等动词后需要接一个if或when引导的从句时 需要在动词后接it作形式宾语 如 Shewon tlikeitifyouarrivelate Hehatesitwhenpeopleusehisbike I dpreferitifIdidn thavetodosomuchwork Iwouldappreciateitverymuchifyouwouldhelpmewithit 2 动词 介词 it that从句能用于此句型的主要有 dependon answerfor seeto 如 Youmaydependonitthathewillturnupintime Ican tanswerforitthattheboyishonest I llseetoitthatalltheseletterswillbesenttothepostbeforetwelve 三 it用于强调句型中强调句型可以对句中除谓语动词以外的成分加以强调 四 it用在一些固定表达中Assomeoneputsit 像某人所说的那样Pleaseseetoitthat 请务必 Whenitcomesto 当提到 时Itlooks seemsasif 看起来好像 It stimeforsth 该做某事了It stime forsb todosth 某人 该干某事了Itis high timethat 早就 该 It sfirst second third time that 这是某人第几次干某事 从句谓语用现在完成时 Itis hasbeen 一段时间 since 自从 已经 Itwasn t won tbelongbefore 没过多久就 很快 It s 时间段 before 过 时间才 五 it与one的区别两者均可代替前面提到的事物 区别是 it指的是与前面已提到的事物为同一物 此时的it等于 the 名词 而one指的是与前面已提到的事物为同一类物 此时的one等于 a 名词 如 IhaveadictionarybutI velentittoMary Ihaven tadictionary canyoulendmeone 巩固练习 I 选用括号内合适的单词填空 1 Itwasonlyaftershehadbeguntocarryoutthetask that when Maryrealizeditwasextremelydifficulttocomplete 2 It As isourbeliefthatwecanmakeagoodlifeifweworkhard 3 It What issuggestedthatparentsshouldpaymoreattentiontotheirchildren sinnerworld that It It 4 Asamatteroffact that it isnotfailureitself butwhatwethinkoffailureandwhatwedoafterwardsthatcounts 5 DoyoustilldriveyourFordcar No Isold it that twoyearsago 6 Youmustkeep it what inmindthatyoucanneverbetoocarefulwhenproofreadingthenewspaper 7 Will that it beconvenientforyoutostartworktomorrow it it it it 8 There It isnodoubtthatthevisitingteam whichhasbetterplayers willwinthematch 9 Idon tthinkIcanworkoutthemathsproblem It stoodifficult Thinkitover andperhapsyouwillmake it that There it II 用there或it的正确形式填空 1 DuringmystaythereImade arulenottoeatfattyfoods 2 I dappreciate ifyoucouldhelpmefindoutthereasonwhythecomputerdoesn twork 3 IkepttellingMarynottostayuptoolateanymore but didn thelp 4 isanurgentneedforqualifiedteachers 5 Ilike whenIamwithpeoplelikeMr Ma whoisalwayswillingtohelpothers it it it There it 6 Whoismakingloudnoisesoutsidethewindow isTom myneighbour sson 7 wasnopointinstayinganylonger 8 I masgoodacookassheisexceptwhen comestomakingpizza 9 Ihavenoideawho wasthattaughtmethetrick whichhelpedmetosolvetheproblem 10 isahardjobforsuchalittleboytocarrytheheavyboxupstairs Let sgivehimahand It There it it It III 选用正确的词完成下面短文 it these that what the Doyouhaveadraweroraboxofyourspecialstuff 1 maylooklikejunktoanybodyelse buttoyou2 maybeveryimportant Maybe3 isyoursetoflastyear shockeycards abottletopyouhopedwouldshowthewinningnumber thesmoothestpebblesyoucouldfindonthebeach andyourclassphoto Ifyouhavekeptthingslike4 thenyouareacollector Somepeoplemightcall5 collectionjunk it it It these the butyoucancall6 MEMORABILIA MEM or a BILLY a 值得纪念的事物 Thatsoundsmoreimpressive doesn t7 Ifyouthinkabout8 happenswhenyoulookthroughyourcollection youmightguesswhatmemorabiliaare Sometimesjustlookingatoneofyourspecialthingshelpstotrigger 触发 amemoryofhowyougot9 Inmostkindsofcollections10 iseasytoseehowtheitemsbelongtogether it it what it it Ifyoucollectstamps anybodycanseehowtheymakeacollection 11 isnotsoeasyforsomebodyelsetounderstandhowyourmemorabiliamakeacollection That swhyotherpeoplethinktheyarejunk Buttheydobelongtogetherbecausetheyareallpartofyourlife Theyarepartofthatspecialsomething12 makesyoudifferentfromanybodyelse It that 真题再现 从A B C D四个选项中 选出可以填入空白处的最佳选项 1 Sarahmade totheairportjustintimetocatchherplanethismorning 2012大纲全国卷II A herselfB thisC thatD it 2 Newtechnologieshavemade possibletoturnoutnewproductsfasterandatalowercost 四川2012 A thatB thisC oneD it3 Theemploymentratehascontinuedtoriseinbigcitiesthankstotheeffortsofthelocalgovernmentstoincrease 北京2011 A themB thoseC itD that 4 Whydon tyoubring tohisattentionthatyou retooilltoworkon 江西2011 A thatB itC thisD him