精选幻灯片-新外研版八年级下册M3U2

Module3,Journeytospace,1,Theearthisa_andit_thesun.,Scientiststhinkthattherehasbeenlifeontheearthfor_years.,Leadin,planet,goesaround,hundredsofmillionsof,数以百万计的,However,havewefoundlifeonanyotherplanetsyet?,2,Unit2,Wehavenotfoundlifeonanyotherplanetsyet.,3,noneenvironmentthatsolar,pron.没有一人；没有一个；一点儿也没有n.环境pron.那；那个（指代已被提及的事物）adj.太阳的；与太阳有关的,Wordsandexpressions,4,systemsolarsystemgroupgalaxyuniverse,n.系统；体系星系；（尤指）太阳系n.群；组n.星系n.宇宙,Wordsandexpressions,5,lightimpossibleoutcommunicate,n.光；光线；光亮adj.（事情）办不到的，不可能的adv.在远方v.联系；交流,Wordsandexpressions,6,LookatthepictureandtalkaboutwhatyouknowaboutChinesespaceships.Shenzhou-9isamannedspaceship.,Workinpairs,7,1.Anyoneoutthere?2.LifeonEarth3.Thesunandotherstars4.Thestarsatnight,Readthepassageandchoosethebesttitleforit.,8,planets,theSun,theEarth,Mars,thesolarsystem,行星,200billionstars,Itsapartoftheuniverse(宇宙).,theMilkyWay,9,A.galaxyB.planetC.solarsystemD.starE.universe,Matchthewordswiththepictures.,A,B,C,D,E,B,10,Putthewordsandexpressionsfromthesmallesttothelargest:,A.galaxyB.planetC.solarsystemD.starE.universe,B,D,C,A,E,11,Check()thetruesentences.1.Theearthisastar.2.Thesunisastar.3.Thereismorethanonegalaxyintheuniverse.4.Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus.5.Scientistshavereceivedmanymessagesfromspace.6.Spaceshipshavevisitedmostoftheuniverse.,12,Answersomequestionsaboutthepassage:,1.HavewefoundlifeonMars?,2.Howmanyplanetsarethereinthesolarsystem?,3.Whichislarger,thegalaxyortheuniverse?,4.Whathavescientistsdonetolookatotherplanets?,5.Istherelifeoutthereinspace?,No,wehavent.,Eight.,Theuniverse.,Theyhavesentlotsofspaceships.,Wedontknow,wehaveneverfoundanylifeonotherplanets.,13,The1stPara.Questions:,1.Howlonghastherebeenlifeontheearth?2.Havewefoundlifeonanyotherplanetsyet?,Therehasbeenlifeontheearthforhundredsofmillionsofyears.,No,wehavent.,14,1.Whatiscalledthesolarsystem?Whatisit?2.Howmanyplanetsarethereinthesolarsystem?3.Whydontscientiststhinktheyllfindlifeontheotherplanets?,Thesunanditsplanetsarecalledthesolarsystem.,ItisasmallpartoftheGalaxy/theMilkyWay.,The2ndPara.Questions:,Thereareeightplanets.,Becausenoneofthemhasanenvironmentlikethatoftheearth.,15,Whathavescientistsdiscovered?2.Whyisitimpossibletoimaginehowlargetheuniverseis?,Theyvediscoveredmanyothergalaxiesintheuniverse.,Becausetheyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.,The3rdPara.Questions:,16,Scientistshave_theplanetMarsto_.Theyhaveevensentspaceshipsto_thesolarsystem.However,nospaceshiphastravelled_otherstarsinourGalaxy.,The4thPara.,sentspaceshipsto,takephotos,traveloutside,farenoughtoreach,17,1.成百万年2.在其它的行星上3.绕太阳转4.他们中没有人5.被叫做6.太阳系7.一小部分8.几十亿的星星9.在宇宙中10.许多其他的星系11.距离好远12.不得不，必须13.足够远14.如此多15.和某人联系,millionsofyearsonanyotherplanetsgoaroundthesunnoneofthembecalledthesolarsystemasmallpartofbillionsofstarsintheuniversemanyothergalaxiesfarawayhave/hastofarenoughsomanycommunicatewithsb.,phrasesKey,18,Languagepoints,1.Scientiststhinkthattherehasbeenlifeontheearthforhundredsofmillionsofyears.科学家们认为地球上的生命已经有上亿年的历史。,hundred前加基数词，表示“一百、二百、三百”，hundred要用单数形式；hundred与of连用表示“数百”时，hundred要用复数形式，即hundredsof。,19,例如：Thereareeighthundredstudentsinourschool.Therearehundredsofpeopleinthepark.,Weplanted_treeslastyear.A.hundredsofB.hundredofC.fivehundredsD.fivehundredof,thousand,million,billion和hundred的用法相同。,Practise,20,2.Withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?宇宙中有这么多星球，我们是孤独的吗？抑或太空中还有其他生命存在呢？Withsomanythingstodo,wehavenotimetoplay.要做的事情这么多，我们都没时间玩了。,withsomanystarsintheuniverse是介词短语，作伴随状语。类似的例子还有：,21,Thewomanstoodtherewithherhandsinthepockets.那个女士站在那里，手插在口袋里。,Practise,Whydoyoualwayssleep_?BecauseImafraidofthedark.A.byyourselfB.withthedooropenC.withthewindowopenD.withthelighton,22,3.Noneofthemhasanenvironmentlikethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.他们中没有一个有像地球这样的环境，因此科学家们认为在他们上面找不到生命。noneof表示（三个以上）一个也没有。做主语时，谓语动词可用单数或复数。,e.g.我们中没一个人去过火星。,Noneofushas/havebeentoMars.,23,注意：none与noone（nobody）的区别：none既可指人也可指物，通常与表范围的of短语连用；noone(=nobody)只能指人，不能与of短语连用。如：Noneofushas/havebeentoSanya.我们都没去过三亚。,(2)none与数量有关，可回答howmany问句，表示“一个也没有”；而noone表示“什么人也没有”，可回答who问句。如：,-Whoareyouspeakingto?-_.-Howmanystudentsarethereintheroom?-_.,Noone,None,24,that是指示代词。为避免重复，可用that或those来代替前面已提到过的人或事物；Theairinthecountrysideisfresherthan_inthecity.Thestreetsinthecityarewiderandthebuildingsaretallerthan_inthecounty.Theenvironmentismuchcleanerthan_inthecity.ThepopulationofShanghaiismuchlargerthan_ofNanning.,that,those,that,that,25,4.However,nospaceshiphastraveledfarenoughtoreachotherstarsinourGalaxy.然而，没有一个航天器去到足以到达我们银河系其他恒星那么远的地方。enoughtodoadj./adv.+enough+todosth.足够，可以not+adj./adv.+enough+todosth.不够，不可以(1)我们有足够的钱花。Wehave_.(2)他跑得够快，很快追上了我们。Heran_catchupwithussoon.(3)他年龄不够大，照顾不了自己。He_.,enoughmoneytospend,fastenoughto,isntoldenoughtolookafterhimself,26,Completethepassagewiththewordsandexpressioninthebox.,communicateenvironmentnonesolarsystemuniverse,Istherelifeonotherplanets?Therearesevenotherplanetsinour(1)_,but(2)_ofthemhasa(n)(3)_likethatoftheearth.,solarsystem,none,environment,27,Spaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)_withus?Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe(5)_yet,butsomescientistsbelievethattheywillfinditsomeday.,communicate,universe,28,Quiz,.用方框中的单词的正确形式完成下列句子。1._ofthestudentshasbeentoAustralia.2.A:Howmuchisyournewcoat.B:It_me150yuan.,billioncostplanetalonenone,None,cost,29,3.A:Doyouoftengoonline,ZhaoHui?B:No.IliketogoonlinewhenIam_athome.4.A:HowmanypeoplearethereinChinanow?B:Ithasreached1.3_.5.Theboyisonlyfiveyearsold,butheknowsaboutmany_.,alone,billion,planets,30,.用already,yet,just,ever或never完成下列句子。1