2014年八年级下册英语module 3 unit2导学案(外研版)

精品文档2016全新精品资料全新公文范文全程指导写作独家原创1/62014年八年级下册英语MODULE3UNIT2导学案外研版MODULE3JOURNEYTOSPACEUNIT2WEHAVENOTFOUNDLIFEONANYOTHERPLANETSYET学习目标1知识目标掌握重点单词和词组的意思及用法2能力目标TOWRITEABOUTSPACETRAVELUSINGPRESENTPERFECTTENSE3情感目标通过本课的学习增加学生的天文知识，培养学生的民族意识。重点难点整体把握文章，理清文章思路。并能根据科学故事图片写短文。学习过程课前延伸READTHENEWWORDSBEFORECLASS课内探究（一）、情景导入WORKINPAIRSLOOKATTHEPICTUREANDTALKABOUTWHATYOUKNOWABOUTCHINESESPACESHIPS（二）多层阅读精品文档2016全新精品资料全新公文范文全程指导写作独家原创2/6IFASTREADINGREADTHEPASSAGEANDCHOOSETHEBESTTITLEFORIT（）1ANYONEOUTTHERE2LIFEONEARTH3THESUNANDTHESTARS4THESTARSATNIGHTIICAREFULREADINGREADAGAIN,CHECK（）THETRUESENTENCESTHEEARTHISASTARTHESUNISASTARTHEREISMORETHANONEGALAXYINTHEUNIVERSETHELIGHTFROMTHESTARSINOTHERGALAXIESHASTRAVELLEDFORALONGTIMETOREACHUSSCIENTISTSHAVERECEIVEDMANYMESSAGESFROMSPACESPACESHIPSHAVEVISITEDMOSTOFTHEUNIVERSEIIICOMPLETETHEPASSAGEWITHTHEWORDSANDEXPRESSIONINTHEBOXCOMMUNICATEDOUBTENVIRONMENTNONESOLARSYSTEMUNIVERSEISTHERELIFEONOTHERPLANETSTHEREAREEIGHTPLANETSINOUR_,BUT_OFTHEMHASAN_LIKETHATOFTHEEARTHSPACESHIPSFROMTHEEARTHHAVEDONESURVEYSOFOTHERPLANETS,BUTTHEYHAVENOTFOUNDANYLIFETHEREWHYHASNOONEFROMOTHERPLANETSTRIEDTO_WITHUSITISTRUETHATSCIENTISTSHAVENOTDISCOVEREDLIFEONOTH精品文档2016全新精品资料全新公文范文全程指导写作独家原创3/6ERPLANETSINTHE_YET,BUTSOMESCIENTISTSDONOT_THATTHEYCANFINDITSOMEDAY三、精讲点拨1SCIENTISTSTHINKTHATTHEREHASBEENLIFEONTHEEARTHFORHUNDREDSOFMILLIONSOFYEARS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EGTHEREAREBILLIONSOFSTARSINTHEGALAXY,ANDOURSUNISONLYONEOFTHEM银河系中有数十亿颗恒星，我们的太阳只是其中的一个。2NONEOFTHEMHASANENVIRONMENTLIKETHATOFTHEEARTH,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。WNONEOF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。EGNONEOFUSHAS/HAVEBEENTOTHEMARS我们中没一个去过火星。THEYAREVERYFARAWAYANDTHEIRLIGHTHASTOTRAVELFORMANYYEARSTOREACHUS精品文档2016全新精品资料全新公文范文全程指导写作独家原创4/6它们离我们很遥远，它们的光必须要经过很多年才能到达地球。REACH为_动词，后接宾语。ARRIVE为_动词，后接介词_构成动词短语。介词_后接大地方，介词_后接小地方。若后跟地点副词HERE,THERE,HOME等，介词省略。GET为_动词，和介词_连用后才可接宾语。若后跟地点副词HERE,THERE,HOME等，介词省略。4SOHOWLARGEISTHEUNIVERSEITSIMPOSSIBLETOIMAGINE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”EGITISDIFFICULTTOREADTHESEWORDS读这些单词很难。5WITHSOMANYSTARSINTHEUNIVERSE,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”。EGMRZHANGISCOMINGWITHABOOKINHISHANDS精品文档2016全新精品资料全新公文范文全程指导写作独家原创5/6张老师手里带着一书进来了（四）TEST单项选择1SHE_THETEACHERSOFFICEYOUCANFINDHERTHEREAHASBEENTOBHASGONETOCHASLEFTDWENT2I_TOCANADAITSSOBEAUTIFULAWONTGOBHAVEGONECDONTGODHAVEBEEN3HASDAVECOME_YES,SHEHAS_BEENHEREFOR10MINUTESAYET,ALREADYBALREADY,YETCALREADY,ALREADYDYET,YET4_YOURHELP,IFINISHEDTHEWORKEASILYAWITHBWITHOUTCUNDERDBELOW5ITSIMPOSSIBLE_HOWLARGEISTHEGALAXYAIMAGINEBTOIMAGINECIMAGININGDIMAGINED我是小小翻译家1地球是一颗行星，它围绕着太阳转动。THEEARTHISAPLANETANDIT_THESUN2我们还没有在其它行星上发现生命。WEHAVENOTFOUNDLIFE_PLANETS_精品文档2016全新精品资料全新公文范文全程指导写作独家原创6/63科学家们已经在宇宙中发现了许多其他星系。SCIENTISTSHAVEDISCOVEREDMANYOTHERGALAXIES_4太阳系只是