高二英语it用法_公开课精品课件

YesterdayOnceMoreCarpentersWhenIwasyoungI'dlistentotheradioWaitingformyfavoritesongsWhentheyplayedI'dsingalong___mademesmileThoseweresuchhappytimesandnotsolongagoHowIwonderwherethey'dgoneButthey'rebackagainjustlikealonglostfriendAllthesongsIlovesowellEveryshalalala……everywowo……stillshineEveryshingalingalingthatthey'restartingtosingsofineWhentheygettothepartwherehe'sbreakingherheart____canreallymakemecryjustlikebeforeIt’syesterdayoncemoreLookingbackonhow___wasinyearsgonebyAndthegoodtimethatIhadMakestodayseemrathersadsomuchhaschanged______songsoflove_____IwouldsingtothemAndI'dmemorizeeachwordThoseoldmelodiesstillsoundsogoodtomeAstheymelttheyearsawayEveryshalalala……everywowo……stillshineEveryshingalingalingthatthey'restartingtosingsofineAllmybestmemoriesComebackclearlytomeSomecanevenmakemecryJustlikebefore_______________________WhenIwasyoungI'dlistentotheradioWaitingformyfavoritesongsWhentheyplayedI'dsingalong___mademesmileThoseweresuchhappytimesandnotsolongagoHowIwonderwherethey'dgoneButthey'rebackagainjustlikealonglostfriendAllthesongsIlovesowellEveryshalalala……everywowo……stillshineEveryshingalingalingthatthey'restartingtosingsofineWhentheygettothepartwherehe'sbreakingherheart____canreallymakemecryjustlikebeforeIt’syesterdayoncemorethekeysititLookingbackonhow___wasinyearsgonebyAndthegoodtimethatIhadMakestodayseemrathersadsomuchhaschanged_______songsoflove_____IwouldsingtothemAndI'dmemorizeeachwordThoseoldmelodiesstillsoundsogoodtomeAstheymelttheyearsawayEveryshalalala……everywowo……stillshineEveryshingalingalingthatthey'restartingtosingsofineAllmybestmemoriesComebackclearlytomeSomecanevenmakemecryJustlikebefore__________________________itItwasthatIt’syesterdayoncemoreTheuseof“it”byMarkGrammarIt用法归纳一、人称代词和非人称代词———指代二、引导词形式主语和宾语三、强调句四、特殊句式Guess:Whatdoesitrefertointhefollowingsentences?Lookatthepicture._____isapictureofourschool.It一、1.用作人称代词,代表前面提到的人或事物.Mypenismissing.Ican’tfind___anywhere.it2、可以用来指动物、婴儿和未确定身份的人。Whoisit?It’slovely.Itweighsonly3kilos.---Isthisjacketyours?---Yes,______is.3.用于代替指示代词this和that。itItisChristmastoday.Itissnowingheavily.ItisnotfarfromShiyantoYunxian.4.用以表示时间、距离、天气、季节、环境等.1).It’s10:08.2)It’sonlyhalfanhour’swalkfromheretoourschool.3)Itissunnytoday,isn’tit?4)It’sspringnow.5)It’squiethere.TimeDistanceWeatherSeasonCircumstance（环境）1.DongfengHighSchoolisbeautifulandIloveit.3.What’sthat?Itisadesk.4.Itiseighto’clock.代替前文出现名词代替指示代词泛指(时间，距离，天气，度量，温度等)2.-Whoisknockingatthedoor?-ItmightbeTom.总结：作代词代替不明身份的人高考再现Heaskedhisteacher,“Sir,thewaterisawful.Whydidyoupretendedtolike________?”(2010年广东高考语法填空题)it1.形式主语二、作引导词2）Itisnousecryingoverspiltmilk.3）Itisamazingthathemadesuchamistake.1）Itiseasiertosaythantodo.模仿造句2.嘲笑别人是不好的。3.据说他已经通过了考试。1.学习英语很有意思。代替todosth./doingsth./从句Itisnogoodlaughingatothers.Itissaidthathehaspassedtheexam.ItisinterestingtostudyEnglish.…possibleItis/was+adj.necessary+(forsb.)todosth./clauseimportant……one’sdutyIt+is/was+n.one’shope+clause/(forsb.)todosth.anhonour……saidItis/wasp.p.known+that-clausebelieved…形式主语高考再现Janewaswalkingroundthedepartmentstores.Sherememberedhowdifficult__31__wastochooseasuitableChristmaspresentforherfather.(2009年广东高考语法填空题)it2.形式宾语2)Ithinkitnousecryingoverspiltmilk.3)Ibelieveitamazingthathemadesuchamistake.1)Ifinditeasiertosaythantodo.模仿造句2.我认为像那样说话是很傻的。3.我想上课时记笔记是必要的。1.我觉得和你聊天很好。2)Ithinkitfoolishtalkinglikethat.3)Ibelieveitnecessarythatweshouldtakenotesinclass.1)Ifinditgoodtochatwithyou.代替todosth./doingsth./thatclause形式宾语动词+it+形容词/名词+（forsb）todo/doing+that从句think,believe,consider,feel,make,find…harduselessimportantnecessarynatural/essential…nouse/nogood/awasteoftime/ourdutyit作形式宾语的特殊句型结构动词+it+if/that/when动词有喜欢类：enjoy,like,appreciate,prefer讨厌类：hate,dislike如果你能给我这个机会我将不胜感激。Iwouldappreciateitifyoucanoffermethechance.Ilikeitwhenmymotherishappy.Ihateitwhenpeopletalkwiththeirmouthsfull.Hetookitforgrantedthathewouldpasstheexam.Don’tdepend/relyonitthathewillarriveontime.IowedittoTomthatIfoundthejobIwanted.想当然地认为指望把什么归功于某人3.强调句(emphaticsentence)结构：Itis(was)+被强调部分+that/who+句子其它成分①ItwasIthat/whosawTomyesterdayhere．②ItwasTomthat/whoIsawyesterdayhere．③ItwasyesterdaythatIsawTomhere．④ItwasherethatIsawTomyesterday．结论：强调句中，当去掉itis(was)….that/who后，句子仍然完整。IsawTomyesterdayhere.Itwasfiveo’clock_________Igothome.Itwasatfiveo’clock_______Igothome.whenthatAthatBwhenItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar.Itisnotuntil…+that...直到…才请指出下列句子的强调部分：1.Itwas_____theoldworkercamethatwe_____theexperiment.A.until;didn’tbeginB.notuntil;beganC.untilbeganD.notuntil;didn’tbegin2.ItisI____singinginthegarden.A.whoareB.whoisC.thatamD.thatisChoosethebestanswer.3.Isitinthefactory_____thistypeofcarsareproduced?A.whichB.whereC.thatD./4.Isitthefactory______thistypeofcarsareproduced?A.whichB.whereC.thatD./特殊句式2.Itisthefirst(second...)timethatsbhas/havedonesthItwasthefirsttimethatsbhaddonesthItisthefirsttimeIhavebeenhere.=ThisisthefirsttimeIhavebeenhere.3.Itis....since...。该句型主要用作处理瞬间动词的完成时，又要和表示一段时间的时间状语连用的问题，主句中是时间作表语，其时态是现在时或完成时，since引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。Itis