广东省惠东县教育教学研究室八年级英语下册 Module 3 Unit 2 We have not found life on any other planets yet课件 （新版）外研版.ppt

module3 journeytospace unit2 wehavenotfoundlifeonanyotherplanetsyet earth moon revision spaceship astronaut spacetravel scientistshavesentspaceshiptomars thejourneyhastakenseveralmonths astronautshavealreadybeentothemoon noonehasbeentomarsyet becausemarsisveryfaraway muchfartherthanthemoon lotsofscientistsareworkinghardinordertosendastronautstomarsoneday scientiststhinkthattherehasbeenlifeontheearthforhundredsofmillionsofyears however wehavenotfoundlifeonanyotherplantsyet readthepassage theearthisaplantanditgoesaroundthesun sevenotherplanetsalsogoaroundthesun noneofthemhasanenvironmentlikethatoftheearth soscientistsdonotthinktheywillfindlifeonthem thesunanditsplanetsarecalledthesolarsystem andoursolarsystemisasmallpartofamuchlargergroupofstarsandplanets calledthegalaxyorthemilkyway therearebillionsofstarsinthegalaxy andoursunisonlyoneofthem scientistshavealsodiscoveredmanyothergalaxiesintheuniverse theyareveryfarawayandtheirlighthastotravelformanyyearstoreachus sohowlargeistheuniverse itisimpossibletoimagine scientistshavesentspaceshiptotheplanetmarstotakephotos theyhaveevensentspaceshipstotraveloutsidethesolarsystem however nospaceshiphastravelledfarenoughtoreachotherstarsinourgalaxy lookatthepictureandtalkaboutwhatyouknowaboutchinesespaceships shenzhou 9isamannedspaceship workinpairs listenandread readthepassageandchoosethebesttitleforit 1 anyoneoutthere 2 lifeontheearth3 thesunandotherstars4 thestarsatnight 1 theearthisastar 2 thesunisastar 3 thereismorethanonegalaxyintheuniverse check thetruesentences 4 thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus 5 scientistshavereceivedmanymessagesfromspace 6 spaceshipshavevisitedmostoftheuniverse completethepassagewiththewordsandexpressioninthebox istherelifeonotherplanets therearesevenotherplanetsinour 1 but 2 ofthemhasa n 3 likethatoftheearth solarsystem none environment spaceshipsfromtheearthhavedonesurveysoftheotherplanets buttheyhavenotfoundanylifethere whyhasnoonefromotherplanetstriedto 4 withus itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe 5 yet butsomescientistsbelievethattheywillfinditsomeday communicate universe 1 scientiststhinkthattherehasbeenlifeontheearthforhundredsofmillionsofyears 科学家认为地球上的生命已经有亿万年了 millionsof数百万hundredsof数百thousandsof成千上万billionsof数十亿 languagepoints e g therearebillionsofstarsinthegalaxy andoursunisonlyoneofthem 银河系中有数十亿颗恒星 我们的太阳只是其中的一个 2 however wehavenotfoundlifeonanyotherplanetsyet 然而 我们还没有在任何其他行星上发现生命 yet用于否定句和疑问句 意思是 还 尚 not yet的意思是 还没 尚未 表示某事物在某一时间尚未发生 但未来也许会发生 例如 ihaven tlearntanyfartherinformationyet 我还没有得到进一步的信息 haveyoureceivedherletteryet 你收到她的来信了吗 3 theearthisaplanetanditgoesaroundthesun sevenotherplanetsalsogoaroundthesun 地球是颗行星 它围绕着太阳转 此外还有七颗行星也围绕着太阳转 太阳系的其他七颗行星 水星 mercury 金星 venus 火星 mars 木星 jupiter 土星 saturn 天王星 uranus 海王星 neptune 4 noneofthemhasanenvironmentlikethatoftheearth soscientistsdonotthinktheywillfindlifeonthem 他们中没有一个有像地球这样的环境 因此科学家们认为在他们上面找不到生命 noneof 表示 三个以上 一个也没有 做主语时 谓语动词可用单数或复数 e g noneofushas havebeentothemars 我们中没一个去过火星 5 oursolarsystemisasmallpartofamuchlargergroupofstarsandplanets calledthegalaxyorthemilkyway 我们的太阳系只是一个由恒星和行星组成的星系的一小部分 这个星系比太阳系大得多 称作银河系或银河 这里的thegalaxy专指 银河系 也可以称作themilkyway 而galaxy则泛指 星系 e g scientistshavediscoveredadistantgalaxy 科学家们发现了一个遥远的星系 6 sohowlargeistheuniverse it simpossibletoimagine 所以宇宙有多大 我们无从想象 句型 itis 形容词 to 动词原形 意思是 做某事很 e g itisdifficulttoreadthesewords 读这些单词很难 7 withsomanystarsintheuniverse arewealone oristherelifeoutthereinspace 宇宙中有这么多星球 我们是孤独的吗 或者太空中还有其他生命存在呢 with 名词 介词短语 表示伴随情况 意思是 带着 e g mr zhangiscomingwithabookinhishands 张老师手里带着一书进来了 alone在句中作形容词 不作定语只做表语 也可作副词 意思是 独自地 e g shewasaloneinthatdarkroom 她独自一人呆在那黑屋子里 writing lookatthepicturefromasciencestoryforchildrenandanswerthequestions whathavethescientistsjustreceived amessagefromoneofourspaceships theyhavejustreceivedamessagefromoneofourspaceships 1 wherehasthespaceshiplanded mars ithaslandedonmars 2 whathasthespaceshipdiscovered peopleonmars 3 whyhavethepeopleonmarsnotsentusamessage donotknowhowto ithasdiscoveredpeopleonmars wedonotknowhowtosendusamessage 4 whyhavethepeopleonmarsnotvisitedusontheearth donotknowhowto wedonotknowhowtovisitusontheearth writeapassagetodescribethepicture useyouranswerstothequestionsinactivity5tohelpyou wehavejustreceivedamessagefromourspaceshiptomars 中考链接 1 where smrgreen he tochangsha 2013湖南湘西 a havebeenb hasgonec hasbeen 2 istomathome no he totown 2013天津 a hasbeenb hasgonec goesd willgo3 hepromisedtopickmeupattheschoolgate however he yet 2011安徽 a didn tarriveb doesn tarrivec isn tarriving