八年級英語下冊 Module 3 Unit 2 We have not found life on any other planets yet 外研版

Module3Journeytospace編輯pptUnit2Wehavenotfoundlife編輯pptearthmoonRevision編輯pptspaceshipastronaut編輯pptspacetravel編輯pptScientistshavesentspaceshiptoMars.Thejourneyhastakenseveralmonths.編輯pptAstronautshavealreadybeentothemoon.編輯pptNoonehasbeentoMarsyet,becauseMarsisveryfaraway,muchfartherthanthemoon.編輯pptLotsofscientistsareworkinghardinordertosendastronautstoMarsoneday.編輯pptScientiststhinkthattherehasbeenlifeontheEarthforhundredsof

millionsofyears.However,wehavenotfoundlifeonanyotherplantsyet.Readthepassage.編輯pptTheEarthisaplantanditgoesaroundthesun.編輯pptSevenotherplanetsalsogoaroundthesun.Noneofthemhasanenvironmentlikethatoftheearth,soscientistsdonotthinktheywillfindlifeonthem.編輯pptThesunanditsplanetsarecalledthesolarsystem,andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets,calledtheGalaxyortheMilkyWay.編輯pptTherearebillionsofstarsintheGalaxy,andoursunisonlyoneofthem.編輯pptScientistshavealsodiscoveredmanyothergalaxiesintheuniverse.Theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus.Sohowlargeistheuniverse?Itisimpossibletoimagine.編輯pptScientistshavesentspaceshiptotheplanetMarstotakephotos.Theyhaveevensentspaceshipstotraveloutsidethesolarsystem.編輯pptHowever,nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.編輯pptLookatthepictureandtalkaboutwhatyouknowaboutChinesespaceships.Shenzhou-9isamannedspaceship.Workinpairs編輯ppt編輯ppt編輯ppt編輯pptListenandread編輯pptReadthepassageandchoosethebesttitleforit.1.Anyoneoutthere?2.Lifeontheearth3.Thesunandotherstars4.Thestarsatnight√

編輯ppt1.Theearthisastar.2.Thesunisastar.3.Thereismorethanonegalaxy intheuniverse.Check(√)thetruesentences.×

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編輯ppt4.Thelightfromthestarsinother galaxieshastravelledforalong timetoreachus.5.Scientistshavereceivedmany messagesfromspace.6.Spaceshipshavevisitedmostof theuniverse.√

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編輯pptCmunicateenvironmentnonesolarsystemuniverseIstherelifeonotherplanets?Therearesevenotherplanetsinour(1)____________,but(2)______ofthemhasa(n)(3)____________likethatoftheearth.solarsystemnoneenvironment編輯pptSpaceshipsfromtheearthhavedonesurveysoftheotherplanets,buttheyhavenotfoundanylifethere.Whyhasnoonefromotherplanetstriedto(4)_____________withus?Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe(5)_________yet,municateuniverse編輯ppt1.Scientiststhinkthattherehasbeenlife ontheEarthforhundredsof

millionsof years. 科學家認為地球上的生命已經(jīng)有億萬年了。 millionsof數(shù)百萬hundredsof數(shù)百 thousandsof成千上萬billionsof數(shù)十億Languagepoints編輯ppte.g.Therearebillionsofstarsinthe Galaxy,andoursunisonlyoneofthem. 銀河系中有數(shù)十億顆恒星，我們的太 陽只是其中的一個。2.However,wehavenotfoundlifeonany otherplanetsyet. 然而，我們還沒有在任何其他行星上 發(fā)現(xiàn)生命。編輯pptyet用于否定句和疑問句，意思是“還，尚”。not…yet的意思是“還沒，尚未”，表示某事物在某一時間尚未發(fā)生，但未來也許會發(fā)生。例如：Ihaven’tlearntanyfartherinformationyet.我還沒有得到進一步的信息。Haveyoureceived

herletteryet?你收到她的來信了嗎？編輯ppt3.TheEarthisaplanetanditgoesaround thesun.Sevenotherplanetsalsogo aroundthesun. 地球是顆行星，它圍繞著太陽轉(zhuǎn)。此外 還有七顆行星也圍繞著太陽轉(zhuǎn)。 太陽系的其他七顆行星：水星(Mercury)、金星(Venus)、火星(Mars)、木星(Jupiter)、土星(Saturn)、天王星(Uranus)、海王星(Neptune)。編輯ppt4.Noneofthemhasanenvironmentlike thatoftheearth,soscientistsdonot thinktheywillfindlifeonthem. 他們中沒有一個有像地球這樣的環(huán)境，因 此科學家們認為在他們上面找不到生命。 noneof…表示（三個以上）一個也沒有。做主語時，謂語動詞可用單數(shù)或復數(shù)。編輯ppte.g.Noneofushas/havebeentotheMars.我們中沒一個去過火星。5.…oursolarsystemisasmallpartofa muchlargergroupofstarsandplanets, calledtheGalaxyortheMilkyWay. ......我們的太陽系只是一個由恒星和行 星組成的星系的一小部分，這個星系 比太陽系大得多，稱作銀河系或銀河。編輯ppt這里的theGalaxy專指“銀河系”，也可以稱作theMilkyWay。而galaxy則泛指“星系”。e.g.Scientistshavediscoveredadistant galaxy. 科學家們發(fā)現(xiàn)了一個遙遠的星系。編輯ppt6.Sohowlargeistheuniverse?It’s impossibletoimagine. 所以宇宙有多大？我們無從想象。句型:Itis+形容詞+to+動詞原形，意思是“做某事很……”e.g.Itisdifficulttoreadthesewords. 讀這些單詞很難。編輯ppt7.Withsomanystarsintheuniverse,are wealone,oristherelifeouttherein space? 宇宙中有這么多星球，我們是孤獨的 嗎？或者太空中還有其他生命存在呢？with+名詞+介詞短語，表示伴隨情況，意思是“帶著……”。編輯ppte.g.Mr.Zhangiscomingwithabookin hishands. 張老師手里帶著一書進來了。alone在句中作形容詞，不作定語只做表語，也可作副詞。意思是“獨自地”。e.g.Shewasaloneinthatdarkroom. 她獨自一人呆在那黑屋子里。編輯pptWritingLookatthepicturefromasciencestoryforchildrenandanswerthequestions.編輯pptWhathavethescientistsjustreceived?(amessagefromoneofourspaceships)Theyhavejustreceivedamessagefromoneofourspaceships.1.Wherehasthespaceshiplanded?(Mars)IthaslandedonMars.

編輯ppt2.Whathasthespaceshipdiscovered?(peopleonMars)3.WhyhavethepeopleonMarsnotsentusamessage?(donotknow howto)IthasdiscoveredpeopleonMars.Wedonotknowhowtosendusamessage.編輯ppt4.WhyhavethepeopleonMarsnotvisitedusontheearth?(donotknowhowto)Wedonotknowhowtovisitusontheearth.

編輯pptWriteapassagetodescribethepicture.UseyouranswerstothequestionsinActivity5tohelpyou.WehavejustreceivedamessagefromourspaceshiptoMars…____________________________________________________________________________________________________________________________________編輯ppt中考鏈接1.—Where’sMrGreen?—He_____toChangsha. (2013湖南湘西)A.havebeen B.hasgone C.hasbeen編輯ppt2.—IsTomathome?—No,he