初中英语-M3U2Wehavenotfoundlifeonanyotherplanetsyet.教学课件设计

Module3Unit2

Wehavenotfoundlifeonanyotherplanetsyet.TaskWatchtheradioandputthewordsandexpressionsintheboxinorder:smalltolarge.galaxy,planet,solarsystem,star,universeWarming-upWarming-upTaskWatchtheradioandputthewordsandexpressionsintheboxinorder:smalltolarge.galaxy,planet,solarsystem,star,universe1.planet2.star3.solarsystem4.galaxy5.universeWarming-upPre-readingTaskIhaveafriend,Tom.Hewouldliketoknowsomethingabouttheuniverse.Youcantellhimwithane-mail,accordingtothewordswhichIhavegivenyou.theEarththesunthemoonMars火星Pre-readingVenus金星

Mercury

水星Jupiter

木星Saturn土星Pre-readingUranus天王星Neptune海王星Pre-readingWhile-readingTask1Fast-reading:Readthepassageandchoosethebesttitleforit.1.Anyoneoutthere?2.LifeonEarth3.Thesunandotherstars4.ThestarsatnightWhile-readingCareful-readingTask1:Readthepassageandtellmehowmanyparagraphs.Scientists

think

that

therehasbeenlife

ontheearthforhundredsofmillionsofyears.However,wehaven’tfoundanylifeonotherplanetsyet.Theearthisaplanetanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.Thesunandtheotherplanetsarecalledthesolarsystem，andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.Scientistshavealsodiscoveredmanyotherplanetsintheuniverse.Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.Sohowlargeisouruniverse?Itisimpossibletoimage.ScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.However,nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.Scientisthavealwaysaskedthequestions:withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?Havetherebeenvisitorstotheearthfromfromotherplanets?Whyhasnoonecommunicatedwithus?Wedonotknowtheanswers...yet.12345While-readingCareful-readingTask2:ReadPara.1tofindthemainideaandanswerthequestions.1.Howlonghastherebeenlifeontheearth?

2.Havewefoundlifeonanyotherplanetsyet?Therehasbeenlifeontheearthforhundredsofmillionsofyears.No,wehaven’t.While-readingScientists

think

that

therehasbeenlife

ontheearthforhundredsofmillionsofyears.However,wehaven’tfoundanylifeonotherplanetsyet.Theearthisaplanetanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.Thesunandtheotherplanetsarecalledthesolarsystem，andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.Scientistshavealsodiscoveredmanyotherplanetsintheuniverse.Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.Sohowlargeisouruniverse?Itisimpossibletoimage.ScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.However,nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.Scientisthavealwaysaskedthequestions:withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?Havetherebeenvisitorstotheearthfromfromotherplanets?Whyhasnoonecommunicatedwithus?Wedonotknowtheanswers...yet.12345Careful-readingTask2:ReadPara.1tofindthemainideaandanswerthequestions.While-readingMind-mapLifeWhile-readingCareful-readingTask3:ReadPara.2&3tofindthemainideaandanswerthequestions.1.Howmanyplanetsarethereinthesolarsystem?

2.Whathavescientistsdiscovered?Thereareeightplanets.They’vediscoveredmanyothergalaxiesintheuniverse.While-readingScientists

think

that

therehasbeenlife

ontheearthforhundredsofmillionsofyears.However,wehaven’tfoundanylifeonotherplanetsyet.Theearthisaplanetanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.Thesunandtheotherplanetsarecalledthesolarsystem，andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.Scientistshavealsodiscoveredmanyotherplanetsintheuniverse.Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.Sohowlargeisouruniverse?Itisimpossibletoimage.ScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.However,nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.Scientisthavealwaysaskedthequestions:withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?Havetherebeenvisitorstotheearthfromfromotherplanets?Whyhasnoonecommunicatedwithus?Wedonotknowtheanswers...yet.12345Careful-readingTask3:ReadPara.2&3tofindthemainideaandanswerthequestions.While-readingMind-mapLifeGalaxyOthergalaxiesUniverseWhile-readingCareful-readingTask4:ReadPara.4tofindthemainideaandcheckthesentences.1.Scientistshavereceivedmanymessagesfromspace.□2.Spaceshipshavevisitedmostoftheuniverse.□While-readingScientists

think

that

therehasbeenlife

ontheearthforhundredsofmillionsofyears.However,wehaven’tfoundanylifeonotherplanetsyet.Theearthisaplanetanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.Thesunandtheotherplanetsarecalledthesolarsystem，andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.Scientistshavealsodiscoveredmanyotherplanetsintheuniverse.Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.Sohowlargeisouruniverse?Itisimpossibletoimage.ScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.However,nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.Scientisthavealwaysaskedthequestions:withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?Havetherebeenvisitorstotheearthfromfromotherplanets?Whyhasnoonecommunicatedwithus?Wedonotknowtheanswers...yet.12345Careful-readingTask4:ReadPara.4tofindthemainideaandcheckthesentences.While-readingMind-mapLifeGalaxyOthergalaxiesSpaceshipUniverseWhile-readingScientists

think

that

therehasbeenlife

ontheearthforhundredsofmillionsofyears.However,wehaven’tfoundanylifeonotherplanetsyet.Theearthisaplanetanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.Thesunandtheotherplanetsarecalledthesolarsystem，andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.Scientistshavealsodiscoveredmanyotherplanetsintheuniverse.Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.Sohowlargeisouruniverse?Itisimpossibletoimage.ScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.However,nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.Scientisthavealwaysaskedthequestions:withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?Havetherebeenvisitorstotheearthfromfromotherplanets?Whyhasnoonecommunicatedwithus?Wedonotknowtheanswers...yet.12345Careful-readingTask5:ReadPara.5tofindthemainidea.While-readingMind-mapLifeGalaxyOthergalaxiesSpaceshipQuestionsUniversePost-readingTaskRetellthepassagewiththewordsandexpressioninthebox.communicateenvironmentnonesolarsystemuniverseIstherelifeonotherplanets?Therearesevenotherplanetsinour(1)_______，but(2)_____ofthemhasa(n)(3)____________likethatoftheearth.Spaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)____________withus?Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe(5)_______yet,butsomescientistsbelievethattheywillfinditsomeday.solarsystemnoneenvironmentcommunicateuniverseDevelopmentTaskFinishtheemail.(Tomwouldliketoknowsomethingabouttheuniverse.)DearTom,I’mreceivedyourletter.I'mverygladtotellyousomethingabouttheuniverse:_______________________________________________________