选修6 unit3 Grammar最新精美课件１.ppt

Period4Grammar,Grammar,Theuseof“it”,Leadin1.ItisTuesdaytoday.2.ItisMarch10th,20083.Itissunny.4.Itis7:30.Letsbeginourclass.5.Itis25kilometersfrommyhometoFenghuihighschool.,Whosit?_me.Lookatthepicture._isapictureofourschool.1.用作人称代词，代表前面提到的人或事物。,Its,It,-Isthisjacketyours?-Yes,_is.2.用于代替指示代词this和that.,it,一、it做代词,Itishalfpasteightnow.Itsonlyhalfanhourswalkfromheretoourschool.Ihopethatitwillbefinetomorrow.Ithasrainedmuchthisyear.Itsspringnow.Itsquiethere.,Time,Distance,Weather,Weather,Season,Circumstance,3.用以表示时间、距离、天气、气候、季节、环境等,it做形式主语,（1）It+be+名词+that从句e.g.Itisapity/afact/awonder/nowonderthat（2）It+be+形容词+that从句e.g.Itisimportant/likely/possible/rightthat（3）It+不及物动词+that从句e.g.Itseems/happens/appearsthat（4）It+be+动词的过去分词+that从句e.g.Itissaid/believed/known/reportedthat,ItissaidthatTomisafaithfulworker.Itisreportedthatthemurdererhasbeenarrested.Itisbelievedthatallthestudentshavedonetheirbest.,=Tom_afaithfulworker.,issaidtobe,=Themurdererisreportedtohavebeenarrested.,=Allthestudentsarebelievedtohavedonetheirbest,it做形式主语,（5）It+be+形容词/名词+(forsb./ofsb.)+todoe.g.Itscarelessofhertomakeaspellingmistake.Itshardformetofinishitintwodays.Itsmydutytotakecareofallthestudents.（6）It+be+名词+doinge.g.Itsfun/nouse/nogood/awasteoftimedoingsth.,Itisimportanttoknowyourlimitations.Itisagoodideatohavealittlenotebookathand.Itisnotworthwhilequarrellingwithhim.Itisstrangethatithasntbeennoticedbefore.Ithappenedthattheharvestwashadthatyear.Itisstillaquestionhowmanypeoplewillbelieveyou.ItisnobusinessofyourswhereIspendmywinter.Itwasclearenoughwhathemeant.,你知道下列句中“it”分别指什么吗?,Itisimportanttoknowyourlimitations.Itisagoodideatohavealittlenotebookathand.Itisnotworthwhilequarrellingwithhim.Itisstrangethatithasntbeennoticedbefore.Ithappenedthattheharvestwasbadthatyear.Itisstillaquestionhowmanypeoplewillbelieveyou.ItisnobusinessofyourswhereIspendmywinter.Itwasclearenoughwhathemeant.,Letspractice!,Togiveupsmokingisverydifficult.2.Arguingwithamanlikehimisofnouse.3.Dontspeakillofher.Itswrong.4.Hedidntpasstheexam.Itisashame.5.Hehadnodesireforsuccess.Itisquiteclear.,Itisverydifficulttogiveupsmoking.,Itisnousearguingwithamanlikehim.,Itiswrong(foryou)tospeakillofher.,Itisashamethathedidntpasstheexam.,Itisquiteclearthathehadnodesireforsuccess.,6.Whetherhewillcomeornotdoesntmatter.7.Whenwewillcelebratetheartfestivalisstillunknown.8.Thatheturnedouttobethiefsurprisedmealot.9.Thenewshasreachedeverypartoftheworld.Someonesaysthat.,Itdoesntmatterwhetherhewillcomeornot.,Itisstillunknownwhenwewillcelebratetheartfestival.,Itsurprisedmealotthatheturnedouttobethief.,Itissaidthatthenewshasreachedeverypartoftheworld.,10.Whetheritwilldousharmorgoodremainstobeseen.11.Workingforhimisfun.12.Doeswastingalittlemoneymatter?13.Howmanypeoplearetocomeisstillaquestion.14.Thatheisstillaliveisawonder.,Itremainstobeseenwhetheritwilldousharmorgood.,Itisfunworkingforhim.,Doesitmatterwastingalittlemoney?,Itisstillaquestionhowmanypeoplearetocome.,Itisawonderthatheisstillalive.,Page21,Itiswonderfulthatmyfatherhasquitsmoking.,2.Myfatherhasquitsmoking.Thatiswonderful.,Itislikelythatyoucouldsufferfrombadhealthifyoukeepsmoking.,Rewritethefollowingsentences,using“Itsthat”.,3.Youcouldsufferfrombadhealthifyoukeepsmoking.(Itislikely).,Imstillfitenoughtocycle20kilometersinanafternoon.Thatisamazing.,ItisamazingthatIamstillfitenoughtocycle20kilometersinanafternoon.,Itisknowntousthatbirdflu(禽流感)hitChinaagain.,ItissaidthatLiYuchungotmorethanonemillionyuanfortheadvertisement.,Birdflu(禽流感)hitChinaagain.Thatisknowntous.,6.LiYuchungotmorethanonemillionyuanfortheadvertisement.Peoplesaythat.,4.Chinaproducesonethirdoftheworldscigarettes.Itisreported.,ItisreportedthatChinaproducesonethirdoftheworldscigarettes.,7.Someyoungpeoplethinkthattheylookattractivewhentheysmoke.Itseemsthat,Itseemsthatsomeyoungpeoplethinktheylookattractivewhentheysmoke.,Ah!Mymilkisspilt（溢出）,“Itoldyounottoplaywithfire!”,该死的电脑游戏！,Iloveit!,Itisnousecryingoverspilt（溢出的）milk.覆水难收。,Specialnotice:,itbevstherebe,“是”,“有”,_someoneatthedoor.Ithink_themantodeliverthemilk.Letshurry!_alongwaytogo._noneedtohurry.Westillgetmuchtime._awonderthatherefusessuchagoodoffer.,Thereis,itis,Thereis,Thereis,Itis,Itis?Thereis?,5._nodoubtthathehasdonesomethingbad.6._nopossibilitythathewillcheatus.7._nogoodarguingwiththeunreasonablewoman.8._nodifferencebetweenthetwoplans.,Thereis,Thereis,Itis,Thereis,it做形式宾语,“主语+动词+it+形容词/名词+不定式/动名词/that从句”e.g.Iconsideritwrongtocheatinanexamination.Dontyoufinditawasteoftimewatchingtelevisiontoomuch?IthoughtitstrangethatJackshouldhavehadsomuchmoneytospendthesedays.,it的模糊指代,指it用来指代后面从句的情况,因为后面的从句不能充当宾语.e.g.Icanthelpitifsheisalwayslate.Ihateitwhenpeopletalkwiththeirmouthfull.IdontlikeitwhenaChinesehosekeepsservingmethefoodIdontlike.Idappreciateitifyoucangivemesomeusefulinformation.,it的其他句型,强调句:“Itis(was)+被强调部分+that/who+剩余部分”注意:who只用于被强调部分是人的时候注意疑问句语序注意not和until,Imetwithhimintheparklastnight.ItwasIwho/thatmetwithhimintheItwashimwhom/thatImetwithintheparklastnight.ItwasintheparkthatImetwithhimlastItwaslastnightthatImetwithhiminthepark.Ididmeetwithhimintheparklastnight.,Itwasattenoclock_Igothome.Itwastenoclock_Igothome.Itwasintheroom_Iwasborn.Thisistheroom_Iwasborn.,that,where,that,when,Puzzle!,Wherewereyouborn?Whatdidyoubuyinthesupermarket?Whyareyoulateforclass?Whendoyouwanttohavethemeeting?,Wherewasitthatyouwereborn?,Whatwasitthatyouboughtinthesupermarket?,Whyisitthatyouarelateforclass?,Whenisitthatyouwanttohavethemeeting?,将此句改成强调句:Shedidntgotobeduntilherfathercameback.,Itwasuntilherfathercamebackthatshedidntgotobed.,Wrong!,Itwasnotuntilherfathercamebackthatshewenttobed.,Right!,2.“Itstimethatsb.did(shoulddo)sth.”虚拟语气=Itstimeforsb.todosth.3.“Itsthefirst/second/thirdtimethat”注意:必须用完成时态.,be+时间段+before“过多久才”4.Itbenot+时间段+before“没过多久就”,Itwastwohoursbeforethefiremanarrivedhere.Itwasnotfiveminutesbeforethefiremanarrivedhere.,过两个小时消防员才到.,没过五分钟消防员就到了.,Translation,1.帮助我你真是太善良了。Itskindofyoutohelpme.2.每天做早锻炼有益于身体健康。Itsgoodforustodomorningexerciseseveryday.=Itdoesusgoodtodomorningexerciseseveryday.3.我们认为帮助灾区的人民抗风雪暴是我们的职责。Wefeelitourdutytohelpthepeopleindisaster-strickenareastofightagainstthesnowstorm.4.三天之后他将要回来。Itwillbe3daysbeforehecomesback.,5.在英国懂得英语是非常重要的.ItseemsveryimportantthatyouknowEnglishinBritain.6.碰巧我看过这部电影IthappensthatIhaveseenthisfi