外研版八年级下册英语M3U2ppt课件

.,1,Module3,Journeytospace,.,2,Unit2,Wehavenotfoundlifeonanyotherplanetsyet.,.,3,ScientistshavesentspaceshiptoMars.Thejourneyhastakenseveralmonths.,.,4,Listenandread,.,5,Readthepassageandchoosethebesttitleforit.1.Anyoneoutthere?2.Lifeontheearth3.Thesunandotherstars4.Thestarsatnight,.,6,1.Theearthisastar.2.Thesunisastar.3.Thereismorethanonegalaxyintheuniverse.,Check()thetruesentences.,.,7,4.Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus.5.Scientistshavereceivedmanymessagesfromspace.6.Spaceshipshavevisitedmostoftheuniverse.,.,8,1.ScientiststhinkthattherehasbeenlifeonEarthformillionsofyears.,宾语从句therehasbeen:therebe的完成时,科学家们认为，,地球上已有生命数百万年了。,ReadPara1andfindoutthissentence.,Theythink_(曾有过)lifeonthemoon.,用现在完成时,therebe,hasever,been,.,9,ReadPara2andanswerquestions:,1.WhatdoestheEarthgoaround?2.Howmanyplanetsgoaroundthesun?3.Whatisthesolarsystem?,Itgoesaroundthesun.,Eightplanets.,Thesunanditsplanetsarecalledthesolarsystem.,围着转,.,10,2.Noneofthemhasanenvironmentwithair.(L3-4),none:一个（人物）也没有用来回答howmany的提问（noone用来回答who的提问）noneof+n.复（谓语动词单复均可）with:有,他们中没有一个有空气的环境。,.,11,Howmanypeoplearethereintheclassroom?_.A.NooneB.NoneC.Nothing这些宇航员没人去过火星。_theastronauts_Mars.这里曾经有个带花园的房子。_somehouses_gardens.,Noneof,have/hasbeento,Therehavebeenwith,.,12,3.Thesunanditsplanetsarecalledthesolarsystem.(L5-6)becalled:被叫做（被动语态）,那个演唱组合叫S.H.E.。Thepopgroup_S.H.E.,iscalled,.,13,ReadPara3fillintheblanks:,Thestarswesee_arethesunsinothersolarsystem.Thereare_200billonstarsinourgalaxy,calledthe_,andoursunisonly_.,atnight,morethan,MilkyWay,oneofthem,.,14,4.Thestarsweseeatnightarethesunsinothersolarsystems.(L1-2),定语从句：用来解释前面的名词。的+前面的名词,我们晚上看到的星星是其他星系的恒星。,TheboywhoistalkingtotheteachercomesfromEngland.,正在和老师谈话的男生来自英国。,.,15,ReadPara4answerquestions:,Whathavescientistsdiscovered?2.Whyisithardtoknowhowlargetheuniverseis?,Theyvediscoveredmanyothergalaxies.,Becausetheyareveryfaraway.,.,16,5.theirlighthastravelledformanyyearstoreachus.,他们的光线需要好几年才能到达地球。,到达某地arrivein+大地方at+小地方getto+地方reach+地方,【温故知新】,后面没有地点只用arrive,.,17,Hewillcallyouassoonashe_Foshan.A.arriveinB.getsC.reachesWhocantellmewhenhe_?A.reachedB.gottoC.arrivedThelightistoohigh.Icant_it.A.reachB.arriveC.get,.,18,6.Itshardtounderstandhowlargetheuniverseis.,()Itshardforthestudents_theEnglishwell.A.learnB.tolearnC.learning,Itis+形+(forsb.)todo,B,很难明白宇宙有多大。,.,19,ReadPara5、6andanswerquestions:,Hasanyonediscoveredlifeinspace?,Noonehasdiscoveredanylifeinspaceyet.,(P5,L4),.,20,7.Withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?(P6,L3),bealone:孤单的，孤独的行为动词+alone孤单地，独自loney寂寞的,孤单的feellonely感到孤单的,宇宙中有这么多的星体，我们是单独的吗？太空中还有其他生命吗？,.,21,用lonely，alone填空Theoldmanlives_butheneverfeels_.Becausehehasmanyfriendsthere.Dontleaveyourchild_athome.,alone,lonely,alone,.,22,Completethepassagewiththewordsandexpressioninthebox.,Istherelifeonotherplanets?Therearesevenotherplanetsinour(1)_,but(2)_ofthemhasa(n)(3)_likethatoftheearth.,solarsystem,none,environment,.,23,Spaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)_wit