【5A文】It用法汇总总结.ppt

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Theuseof"it"it的用法 2021/7/10Discovering“It”Itrainsheavily.2.Itis20kilometersfromGranddad'shousetoJames’.3.ItisNovember11,2005.4.Itis9o’clockatnight.5.It'llbelovelyinthegardentonight．6.Itisbadtosmoke.7.Itislikelythathewillsucceed.天气距离日期时间形式主语环境形式主语 内容提要it作人称代词,代替前面提到的事物.it作指示代词,指代this/that3.it作非人称代词，指代时间,日期，温度，季节,距离，金钱，天气，环境等4.it作形式主语.当动名词,不定式,从句作主语时,常用it作形式主语.5.it作形式宾语,常用在6123结构中.(think,find,make,believe,…)6.Itis…that/who….的强调句型. 1.用作人称代词代替前文提到的事物，或指代性别不详的人Mypenismissing.Icannotfinditanywhere.Hernewbabyistiny.Itonlyweighs2kg.一.代词it 2.作为指示代词相当于this或that，it有时不特指某件东西，而代表前面已提到的或将会发生的某件事情。Ihadatalkwiththestudents.Itwasveryhelpfultoher 3.作为非人称主语可用来指代时间、距离、自然现象（天气、气候、气温）、环境等，通常不翻译出来。Itistwoo’clocknow.ItisSundaytoday.Itissummer.Itisnotfartothepostoffice.Itisgettinghot.Itwillbeafinedaytomorrow.Itisquietintheclassroom. Eg:IboughtadictionarythreeyearsagoandIamstillusing______now.IboughtadictionarythreeyearsagobutIamgoingtobuyanew_______soon.It用以指特定的前面提到过的事物，即：it和它替换的是同一个事物，it前无修饰语；而one用于替换与前提事物有共同之处但并不完全一样的事物，因此，one之前或之后一定有修饰语来加以区别。It和oneitone 1.Tom'smotherkepttellinghimthatheshouldworkharder,but___didn’thelp.A.heB.whichC.sheD.it2.Europeanfootballisplayedin80countries,making___themostpopularsportintheworld.whichB.thisC.thatD.it3.---Thereisacopyofthebookinthelibrary.Willyougoandbuy_______?---No,I'dratherbuy_____inthebookstore.A.it;oneB.one;oneC.one;itD.it;itDDA 二.引导词it1.it作形式主语当主语由动词不定式短语，动名词短语和主语从句充当时，为了避免头重脚轻，使整个句子平衡，常把这些主语放在句末，而把it放在句首充当形式主语。如：Itisnecessaryforyoutogetupearly.Itisnousearguingwithhim.ItisafactthatEnglishisbeingacceptedasaninternationallanguage. 作形式主语,代替不定式,动名词或从句表示的真正主语代替不定式1)Itbe+adj.+ofsb.todoItbe+adj./n.+forsb.todo.当形容词表示的是不定式逻辑主语sb.的性质的时候，用of，可以改写为：sb.iskindtodosth.其他的形容词用for。ItisimportantforustolearnEnglish.Itisapityforyoutomisstheconcert.ItiskindofyoutohelpmeYouarekindtohelpme. 2.代替动名词Itbe+adj./n.+doing.当形容词或名词为useless,nouse,nogood时,后面必须跟动名词.Itisnousearguingwithhim.3.代替从句主语从句通常不放在句首，一般把它移到句子后面，前面用“it”作形式主语。Itisstrangethathedidn’tcomeyesterday.Itisnotknownyetwhethertheywillreturntoday. 1.______worriesmethewayhekeepschanginghismind.(2007..山东)A.ThisB.ThatC.WhatD.It2._________excitedusChinesegreatlythatLiuXiangbroketheworldrecordofthe110--meterhurdlerace.A.WhatB.ThatC.ItD.AsDC 当复合宾语中的宾语是不定式、动名词、宾语从句时,往往把宾语放在它的补足语后面,而用it作形式宾语,放在宾语补足语之前。e.g.Ithinkitnousearguingwithhim.我认为和他争吵没有用。2.作形式宾语 该句型中的it作形式宾语。为了记忆方便我们可称该句型为：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that引导的宾语从句。Wethinkitourdutytocleanourclassroom.HefeltitimportantlearningEnglishwell.Theyfounditdifficultthattheywouldfinishtheirworkintwodays. 1.Hedidn'tmake_____clearwhenandwherethemeetingwouldbeheld.(2007.天津)A.thisB.thatC.itD.there2.Idon'tthink______possibletomasteraforeignlanguagewithoutmuchmemorywork.A.thisB.oneC.itsD.itCD 3.用于强调句中1.Itis+被强调部分+that/who+句子剩余部分该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，that可以由who换用。如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 Iplantedtreesatthegatethismorning.ItwasIthat/whoplantedtreesatthegatethismorning.ItwastreesthatIplantedatthegatethismorning.ItwasatthegatethatIplantedtreesthismorning.ItwasthismorningthatIplantedtreesatthegate. 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。Ididnotrealizeshewasafamousfilmstaruntilshetookoffherglasses.=ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar. Itwasabout600yearsago______thefirstclockwasmade．A．that　B．untilC．before　D．when2.Was__________thatIsawlastnightattheconcert?A.ityouB.notyouC.youD.thatyourselfAA 3.ItwasonlywhenIreadhispoemsagain____Ibegantoappreciatetheirbeauty．A．untilB．that　C．then　D．so4.Itwasnotuntil1920__regularbroadcastsbegan.A.whileB.whichC.thatD.sinceBc 2021/7/10六、It常用的固定搭配makeit（1）在口语当中相当于succeed，表示：成功、做到、说定、赶上、及时到达例It'shardtomakeittothetopinshowbusiness.（2）在口语中相当于fixthedatefor，表示“约定好时间”例—Shallwemeetnextweek？—OK.WejustmakeitnextSaturday. 2021/7/102.takeit/thingseasy相当于Don‘tworryordon’thurry.用来劝告别人，表示“不要慌，别担心，沉住气”Takeiteasy！Hewilldoitwell.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. Tom‘smotherkepttellinghimthatheshouldworkharder,but___didn’thelp.A.heB.whichC.sheD.itAs___happens,Ihavebroughtmyumbrellawithme.A.itB.thisC.thatD.such3.___hasalreadybeenpointedout,grammarisnotasetofdeadrules.A.AsB.ItC.ThatD.This4.Itwassevenforty-five___hefinishedthework.A.whenB.thatC.whenD.beforeDAAA 5.Wasitbecauseitsnowedlastnight___hedidn‘tcome?A.whyB.thatC.whenD.which6.Does___matterifhecan’tfinishthejobontime?A.thisB.thatC.heD.it7.Europeanfootballisplayedin80countries,making___themostpopularsportintheworld.whichB.thisC.thatD.it8.___isnodoubtthathewillsucceedinhisexperiment.A.ItB.ThisC.ThatD.ThereBDDD 9.Itworriedabit___herhairwasturninggray.A.whileB.thatC.ifD.for10.Itwasnot___shetookoffherdarkglassesIrealizedshewasafamousfilmstar.A.when;thatB.until;thatC.until;whenD.when;thenBB ThankYou!