高二英语语法课件it用法.ppt

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1、人教版选修6Unit3-4单元语法It用法江西省临川二中高二英语备课组FuGuoming2011.12.24.人称代词1.指代前文提到的事物/件、情况、地方2.代替整个句子或谓语部分所表达的情况/意思3.指代身份不明的人、性别不明的婴孩4.指代无生命物、动物、植物5.代替指示代词this/that或某些复合不定代词6.指明某人/某物的身份7.表示未知事物YouhelpedmealotwhenIwasintrouble.Ishallneverforgetit.Sheisverystubbornthoughshedoesn’tlookit.Sheisne

2、arlyfifty,butshedoesn’tlookit.-Whoissinging?-ItmustbeMary.-Whenshallwemeetagain?-Makeitanydayyoulike;it’sallthesametome.-What’sthat/this?-Itisabook./Maybeit’saUFO.-Whoisit?-It’sme.Isitaboyoragirl?Hereismydog.IcallitTommy.Idroppedmycoffeecupanditbroke.Itishardwork,butIenjoyit.Th

3、ereisaknockonthedoor.Itmustbethepostman.Nothingiswrong,isit?Ithoughtittobeher.Itwasthoughttobeshe.It’sIwhodidit.Heboughtanewhouselastyearandhehasmovedintoit.It’sacold-bloodedcreature.Ireadaboutitinsomebookorother.Doesitmatterwhichitwas?-What’sthis?-It’saflag.-Whosebookisthat?-I

4、t’shers.-Whoisknockingatthedoor?-It’sme.-Whoismakingsuchanoise?-Itmustbethechildren.-Whereismypen?-Itwasonthedeskaminuteago.-Youleftitonthetelephone.Lookatthebird.Italwayscomesonmywindow.Youhavehelpedmealot.Ishallneverforgetit.Itriedmybesttopersuadehim,butitdidn’thelp.Thebabyis

5、crying.Itmightbehungry.IthasapopulationoftwomillionpeopleandislocatedintheeastofShanghai.Heissixty-six,buthedoesn’tlookit.-Whosaidso?-Oh,somebodyorother.Ican’trememberwhoitwas.II.非人称代词常用作主语，可表示天气、时间(时刻/日期/星期/年月/季节)、环境、自然现象、温度、距离、价值、度量衡、Itwasveryquietatthemoment.-Whattimeisit?-I

6、tiseighto’clock.Itoftenrainsinsummer.Itisalongwaytothefactory.Itisfivekilometersfromtheofficetomyhome.Itwasonlyashortride.Itwasalreadyoneinthemorningandtherainfellagainstthewindow.Itisveryquiethereatnight.-What’sthecostofthebike?-It’s300yuan.Itiswinternow.Itistoowindyinthenorth

7、.Itistoolate.Ihavetobeoffnow.Itrainedalldayyesterday.Itcanbeveryhothere.It’stoolatetogotherenow.Prettyhotandwetinthesummer,butitcanbequitecoldinwinter.Ididn’trealizeitwasgoingtobethisfar.III.先行代词1.作形式主语Itbe+adj.+主语从句.Itbe+p.p.+主语从句.Itbe+n.+主语从句.It+vi+主语从句.Itis+adj.+for/ofsbtodo

8、sth.Itisnouse/gooddoingsth.Itiseasy/fun/interesting/ha