外研版八下课件.pptx

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1、noneenvironmentsolarsystemsolarsystemgroupgalaxyuniverseimpossiblecommunicatepron.没有一个n.环境adj.太阳的，与太阳有关的n.系统，体系星系，(尤指)太阳系n.群，组n.星系n.宇宙adj.(事情)办不到的，不可能的v.联系，交流WordsandexpressionsPeriod2Unit2Wehavenotfoundlifeonanyotherplanetsyet.Module3JourneytospaceThesearethegreat

2、timeforeveryChinese.1.On15th,October20032.On12th,October20053.On25th,September20084.On16th,June20125.On11th,June20136.…Shenzhou-5Shenzhou-6Shenzhou-7Shenzhou-9Shenzhou-10SpacewalkWhydowesendspaceshipstotheuniverse?Matchthewordswiththepictures.earthplanetsolarsystem

3、starGalaxyMilkyWayUniverse1.Anyoneoutthere?2.Lifeontheearth3.Thesunandotherothers4.ThestarsatnightThebesttitleforthepassage_________.Fastreading:Readthepassagequicklyandchoosethetitle.Readingtip1:thebeginningandtheending1Putthewordsandphrasesintheorder(small—big)12

4、34earth,universe,galaxy,solarsystem2solarsystem1earth3galaxy4universeCarefulreading:ReadPara1carefullyandanswer:1.Howmanyyearshastherebeenlifeontheearth?Hundredsofmillionsofyears.2.Havewefoundlifeonotherplanets?No,wehaven’t.Theearthisa______andit___________thesun.S

5、evenotherplanetsalsogoaroundthesun.______ofthemhas____________like______oftheearth.Thesunanditseightplanetsarecalled____________.Oursolarsystemisasmallpartof______________.Therearemanyothergalaxiesinthe________.Carefulreading:ReadPara2carefullyagainandfill.thatsola

6、rsystemtheGalaxyortheMilkyWayuniversegoesaroundNoneanenviromentplanetCarefulreading:ReadPara3carefullyandanswer.Lightyear(光年)Whythestarslooksmall?Becausethayarefaraway.Theirlighthastotravelformanyyearstoreachus.Howfar?Howlaregeistheuniverse?Itisimpossibletoimagineh

7、owlargetheuniverseis.Scientists_______________manyotherglaxiesintheuniverse.Theyarefarawayandtheirlighthastotravelmanyyears___________.Soitis__________toimagine_______________________.havediscoveredtoreachusimpossiblehowlargetheuniverseisMarsCarefulreading:ReadPara

8、4carefullyandfinish.outsidethesolarsystem1.Havescientistssentthespaceshipstootherplaces?Where?Yes,theyhave.2.Havethespaceshipsreachotherstarsinou