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1、Module3Unit2Wehavenotfoundlifeonanyotherplanetsyet?本課時編寫：合肥英倫教育學(xué)校闞娜老師WatchthevideoandtalkaboutwhatyouknowaboutChinesespaceships.Shenzhou-9isamannedspaceship.創(chuàng)設(shè)情境spacetravelScientiststhinkthattherehasbeenlifeontheEarthforhundredsofmillionsofyears.Howeve
2、r,wehavenotfoundlifeonanyotherplantsyet.Readthepassage啟發(fā)思考TheEarthisaplantanditgoesaroundthesun.Sevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.Thesunanditsplanetsarecalledth
3、esolarsystem,andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.TherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.Scientistshavealsodiscoveredmanyothergalaxiesintheuniverse.Theyareveryfarawayandtheir
4、lighthastotravelformanyyearstoreachus.Sohowlargeistheuniverse?Itisimpossibletoimagine.ScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.However,nospaceshiphastravelledfarenoughtoreachothersta
5、rsinourGalaxy.Putthewordsandexpressionsintheboxinorder:small–large.galaxy,planet,solarsystem,star,universe3213451.planet2.star3.solarsystem4.galaxy5.universe天體系統(tǒng)的層次月球地球地月系太陽系河外星系其他恒星系銀河系總星系其他行星—衛(wèi)星系TheMilkyWayGalaxy銀河系主體部分的直徑約為10萬光年銀河系銀河系有太陽這樣的恒星2000多億顆
6、ThesolarsystemWhenyoureadapassagewithatitleandpictures,thinkaboutthewordsyoumayfindinthepassage,andthequestionsyoumaywanttoaskbeforeyoustarttoread.Learningtolearn2.Readthepassageandchoosethebesttitleforit.Anyoneoutthere?Lifeontheearth3.Thesunandotherst
7、ars4.Thestarsatnight________________________________Scientiststhinkthattherehasbeenlifeontheearthforhundredsofmillionsofyears.However,wehavenotfoundlifeonanyotherplanetsyet.1.Anyoneoutthere?1.Theearthisastar.□2.Thesunisastar.□3.Thereismorethanonegalaxy
8、intheuniverse.□4.Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus.□5.Scientistshavereceivedmanymessagesfromspace.□6.Spaceshipshavevisitedmostoftheuniverse.□3.Check(√)thetruesentences.√√√自主或小組探究1.自主探究Languagepoints1.S
