新外研版八年级下册Module3 Unit2(共34张PPT).ppt

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1、Module3,Journeytospace,Theearthisa_andit_thesun.,Scientiststhinkthattherehasbeenlifeontheearthfor_years.,Leadin,planet,goesaround,hundredsofmillionsof,数以百万计的,However,havewefoundlifeonanyotherplanetsyet?,Unit2,Wehavenotfoundlifeonanyotherplanetsyet.,noneenvironmentthatsolar,pron.没有一人；没有一个；一点儿也没有n.环境p

2、ron.那；那个（指代已被提及的事物）adj.太阳的；与太阳有关的,Wordsandexpressions,systemsolarsystemgroupgalaxyuniverse,n.系统；体系星系；（尤指）太阳系n.群；组n.星系n.宇宙,Wordsandexpressions,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,LookatthepictureandtalkaboutwhatyouknowaboutChinesespaceships.Shenz

3、hou-9isamannedspaceship.,Workinpairs,1.Anyoneoutthere?2.LifeonEarth3.Thesunandotherstars4.Thestarsatnight,Readthepassageandchoosethebesttitleforit.,planets,theSun,theEarth,Mars,thesolarsystem,行星,200billionstars,Itsapartoftheuniverse(宇宙).,theMilkyWay,A.galaxyB.planetC.solarsystemD.starE.universe,Matc

4、hthewordswiththepictures.,A,B,C,D,E,B,Putthewordsandexpressionsfromthesmallesttothelargest:,A.galaxyB.planetC.solarsystemD.starE.universe,B,D,C,A,E,Check()thetruesentences.1.Theearthisastar.2.Thesunisastar.3.Thereismorethanonegalaxyintheuniverse.4.Thelightfromthestarsinothergalaxieshastravelledforal

5、ongtimetoreachus.5.Scientistshavereceivedmanymessagesfromspace.6.Spaceshipshavevisitedmostoftheuniverse.,Answersomequestionsaboutthepassage:,1.HavewefoundlifeonMars?,2.Howmanyplanetsarethereinthesolarsystem?,3.Whichislarger,thegalaxyortheuniverse?,4.Whathavescientistsdonetolookatotherplanets?,5.Isth

6、erelifeoutthereinspace?,No,wehavent.,Eight.,Theuniverse.,Theyhavesentlotsofspaceships.,Wedontknow,wehaveneverfoundanylifeonotherplanets.,The1stPara.Questions:,1.Howlonghastherebeenlifeontheearth?2.Havewefoundlifeonanyotherplanetsyet?,Therehasbeenlifeontheearthforhundredsofmillionsofyears.,No,wehaven

7、t.,1.Whatiscalledthesolarsystem?Whatisit?2.Howmanyplanetsarethereinthesolarsystem?3.Whydontscientiststhinktheyllfindlifeontheotherplanets?,Thesunanditsplanetsarecalledthesolarsystem.,ItisasmallpartoftheGalaxy/theMilkyWay.,The2ndPara.Questions:,Thereareeightplanets.,Becausenoneofthemhasanenvironmentl

8、ikethatoftheearth.,Whathavescientistsdiscovered?2.Whyisitimpossibletoimaginehowlargetheuniverseis?,Theyvediscoveredmanyothergalaxiesintheuniverse.,Becausetheyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.,The3rdPara.Questions:,Scientistshave_theplanetMarsto_.Theyhaveevensentspaceshipst

9、o_thesolarsystem.However,nospaceshiphastravelled_otherstarsinourGalaxy.,The4thPara.,sentspaceshipsto,takephotos,traveloutside,farenoughtoreach,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,millionsofyearsonanyotherplanetsgoaroundthesunnoneo

10、fthembecalledthesolarsystemasmallpartofbillionsofstarsintheuniversemanyothergalaxiesfarawayhave/hastofarenoughsomanycommunicatewithsb.,phrasesKey,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；

11、hundred与of连用表示“数百”时，hundred要用复数形式，即hundredsof。,例如：Thereareeighthundredstudentsinourschool.Therearehundredsofpeopleinthepark.,Weplanted_treeslastyear.A.hundredsofB.hundredofC.fivehundredsD.fivehundredof,thousand,million,billion和hundred的用法相同。,Practise,2.Withsomanystarsintheuniverse,arewealone,oristher

12、elifeoutthereinspace?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：,Thewomanstoodtherewithherhandsinthepockets.那个女士站在那里，手插在口袋里。,Practise,Whydoyoualwayssleep_?BecauseImafraidofthedark.A.byyourselfB.withthedo

13、oropenC.withthewindowopenD.withthelighton,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.,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

14、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,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

15、.Thestreetsinthecityarewiderandthebuildingsaretallerthan_inthecounty.Theenvironmentismuchcleanerthan_inthecity.ThepopulationofShanghaiismuchlargerthan_ofNanning.,that,those,that,that,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./

16、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,Completethepassagewiththewordsandexpressioninthebox.,communicateenvironmentnonesolarsystemuni

17、verse,Istherelifeonotherplanets?Therearesevenotherplanetsinour(1)_,but(2)_ofthemhasa(n)(3)_likethatoftheearth.,solarsystem,none,environment,Spaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)_withus?Itistruethatscientistshaveno

18、tdiscoveredlifeonotherplanetsinthe(5)_yet,butsomescientistsbelievethattheywillfinditsomeday.,communicate,universe,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,3.A:Doyouoftengoonline,ZhaoHui?B:No.Iliketogoonl

19、inewhenIam_athome.4.A:HowmanypeoplearethereinChinanow?B:Ithasreached1.3_.5.Theboyisonlyfiveyearsold,butheknowsaboutmany_.,alone,billion,planets,.用already,yet,just,ever或never完成下列句子。1.Ihave_donetheheavyworkandnowIfeelverytired.2.Mary,haveyoureadanybooksaboutMars?No,Ihave_readawordaboutit.,just,never,3

20、.Haveyou_beentotheGreatWallinChina,Vicky?Ofcourse,Ihave.4.Dontworry.Wehave_helpedyousweeptheclassroom.5.Haveyoudoneyourwork_?Sorry,butIwillfinishitinonehour.,ever,already,yet,.下列各句中均有一处错误，请指出并改正。1.Mymotherisntin.Shehasbeentothesupermarket._2.Footballissoexcitingthatmillionofpeopleintheworldplayit._3.Thatisveryhardtoreachtheapplesonthetree._,gone,millions,It,Thankyou!,