Module-3-Unit-2--We-have-not-found-life-on-any-oth

Unit2Wehavenotfoundlifeonanyotherplanetsyet.Module3Thesunanditsplanetsarecalled_____________Theearthisa______anditgoesaroundthesun._______otherplanetsgoaroundtheSun.planetSeventhesolarsystem太阳系theGalaxy/theMilkyWay银河系Thereare________starsintheMilkyWay.billionsofOursolarsystemispartof____________.Scientistshavediscoveredmanyother_________intheuniverse.Soitis________toimaginehowlargetheuniverseis.galaxiesimpossibleScientistshavesentspaceshiptoMars.Thejourneyhastakenseveralmonths.Astronautshavealreadybeentothemoon.NoonehasbeentoMarsyet,becauseMarsisveryfaraway,muchfartherthanthemoon.LotsofscientistsareworkinghardinordertosendastronautstoMarsoneday.ScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.LookatthepictureandtalkaboutwhatyouknowaboutChinesespaceships.Shenzhou-9isamannedspaceship.Whendidwesendit?Wheredidwesendit?Howlongdiditstayinspace?Whendiditreturn?Whoaretheastronauts?on16thofJune2012Jiuquan,GansuProvince.Thirteendays.on29thotJune2012LiuYang,JingHaipeng,LiuWangLiuYangJingHaipengLiuWangnoneenvironmentthatsolarsystemsolarsystemgrouppron.没有一人n.环境pron.那，那个adj.太阳的n.系统，体系星系，太阳系n.群，组galaxyuniverselightimpossibleoutcommunicaten.星系n.宇宙n.光/光线/光亮adj.不可能的adv.在远方v.联系，交流1.Anyoneoutthere?2.Lifeontheearth3.Thesunandotherstars4.Thestarsatnight√Readthepassageandchoosethebesttitleforit.The1stPara.Questions:1.Howlonghastherebeenlifeontheearth?2.Havewefoundlifeonanyotherplanetsyet?Therehasbeenlifeontheearthforhundredsofmillionsofyears.No,wehaven’t.The2&3rdPara.2.Putthewordsandexpressionsfromthesmallesttothelargest:_____________A.galaxyB.planetC.solarsystemD.starE.universeBDCAE1.Whichistrue?A:Sevenplanetsgoaroundthesun.B:thereareonlystarsinthegalaxy.C.Thesolarsystemislargerthanthegalaxy.D:theEnvironmentoftheearthisdifferentfromthatotherplanetinthesolarsystem.√Spaceshipshavetravelledto____________and_______________________.Butnottravelled_______________________yet,becauseitistoo_______.The4thPara.theplanetMarsoutsidethesolarsystemtootherstarsinourGalaxyfarThe5thPara.Havescientistsdiscoveredanylifeinouterspaceyet?No,notyet.Istherelifeoutthesolarsysteminspace?Wedonotknowtheanswers…yet.1.Theearthisastar.2.Thesunisastar.3.Thereismorethanonegalaxyintheuniverse.4.Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus.5.Scientistshavereceivedmanymessagesfromspace.6.Scientistshavevisitedmostoftheuniverse.Checkthetruesentences:×√√√××Completethepassagewiththewordsandexpressioninthebox.Istherelifeonotherplanets?Therearesevenotherplanetsinour(1)____________,but(2)______ofthemhasa(n)(3)____________likethatoftheearth.solarsystemnoneenvironmentcommunicateenvironmentnonesolarsystemuniverseSpaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)_____________withus?Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe(5)_________yet,butsomescientistsbelievethattheywillfinditsomeday.communicateuniverse1.ScientiststhinkthattherehasbeenlifeontheEarthforhundredsofmillionsofyears.科学家认为地球上的生命已经有亿万年了。millionsof数百万hundredsof数百thousandsof成千上万billionsof数十亿e.g.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.银河系中有数十亿颗恒星，我们的太阳只是其中的一个。2.However,wehavenotfoundlifeonanyotherplanetsyet.然而，我们还没有在任何其他行星上发现生命。yet用于否定句和疑问句，意思是“还，尚”。not…yet的意思是“还没，尚未”，表示某事物在某一时间尚未发生，但未来也许会发生。例如：Ihaven’tlearntanyfartherinformationyet.我还没有得到进一步的信息。Haveyoureceivedherletteryet?你收到她的来信了吗？3.TheEarthisaplanetanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.地球是颗行星，它围绕着太阳转。此外还有七颗行星也围绕着太阳转。太阳系的其他七颗行星：水星(Mercury)、金星(Venus)、火星(Mars)、木星(Jupiter)、土星(Saturn)、天王星(Uranus)、海王星(Neptune)。4.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.Noneofushas/havebeentotheMars.我们中没一个去过火星。5.…oursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.......我们的太阳系只是一个由恒星和行星组成的星系的一小部分，这个星系比太阳系大得多，称作银河系或银河。注意：none与noone（nobody）的区别：(1)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：_________ofthereasonswastrue.A.NoneB.NooneC.All(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?-_________.ANooneNone这里的theGalaxy专指“银河系”，也可以称作theMilkyWay。而galaxy则泛指“星系”。e.g.Scientistshavediscoveredadistantgalaxy.科学家们发现了一个遥远的星系。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。…enough…todoadj./adv.+enough+todosth.足够…，可以…not+adj./adv.+enough+todosth.不够…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____________________________________.enoughmoneytospendfastenoughtoisn’toldenoughtolookafterhimself6.Sohowlargeistheuniverse?It’simpossibletoimagine.所以宇宙有多大？我们无从想象。句型:Itis+形容词+to+动词原形，意思是“做某事很……”e.g.Itisdifficulttoreadthesewords.读这些单词很难。7.Withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?宇宙中有这