外研版初中英语八年级下册Module 3《Unit 2 We have not found life on any other planets yet》课件.ppt

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1、Module3Module3JourneytospaceUnit2Wehavenotfoundlifeonanyotherplanetsyet.earthmoonRevisionspaceshipastronautspacetravelScientistshavesentspaceshiptoMars.Thejourneyhastakenseveralmonths.Astronautshavealreadybeentothemoon.NoonehasbeentoMarsyet,becauseMarsisveryfaraway,muchfartherthanthemoon.Lotsofscie

2、ntistsareworkinghardinordertosendastronautstoMarsoneday.ScientiststhinkthattherehasbeenlifeontheEarthforhundredsofmillionsofyears.However,wehavenotfoundlifeonanyotherplantsyet.Readthepassage.TheEarthisaplantanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethat

3、oftheearth,soscientistsdonotthinktheywillfindlifeonthem.Thesunanditsplanetsarecalledthesolarsystem,andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.Scientistshavealsodiscoveredmanyothergalaxiesi

4、ntheuniverse.Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.Sohowlargeistheuniverse?Itisimpossibletoimagine.ScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.However,nospaceshiphastravelledfarenoughtoreachotherstarsinourG

5、alaxy.LookatthepictureandtalkaboutwhatyouknowaboutChinesespaceships.Shenzhou-9isamannedspaceship.WorkinpairsListenandreadReadthepassageandchoosethebesttitleforit.1.Anyoneoutthere?2.Lifeontheearth3.Thesunandotherstars4.Thestarsatnight√1.Theearthisastar.2.Thesunisastar.3.Thereismorethanonegalaxyinthe

6、universe.Check(√)thetruesentences.×√√4.Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus.5.Scientistshavereceivedmanymessagesfromspace.6.Spaceshipshavevisitedmostoftheuniverse.√××Completethepassagewiththewordsandexpressioninthebox.communicateenvironmentnonesolarsystemuniverseIsth

7、erelifeonotherplanets?Therearesevenotherplanetsinour(1)____________,but(2)______ofthemhasa(n)(3)____________likethatoftheearth.solarsystemnoneenvironmentSpaceshipsfromtheearthhavedonesurveysoftheotherplanet