新外研版八年级下册M3U2.ppt

Module3 Journeytospace Theearthisa andit thesun Scientiststhinkthattherehasbeenlifeontheearthfor years Leadin planet goesaround hundredsofmillionsof 数以百万计的 However havewefoundlifeonanyotherplanetsyet Unit2 Wehavenotfoundlifeonanyotherplanetsyet noneenvironmentthatsolar pron 没有一人 没有一个 一点儿也没有n 环境pron 那 那个 指代已被提及的事物 adj 太阳的 与太阳有关的 Wordsandexpressions systemsolarsystemgroupgalaxyuniverse n 系统 体系星系 尤指 太阳系n 群 组n 星系n 宇宙 Wordsandexpressions lightimpossibleoutcommunicate n 光 光线 光亮adj 事情 办不到的 不可能的adv 在远方v 联系 交流 Wordsandexpressions LookatthepictureandtalkaboutwhatyouknowaboutChinesespaceships Shenzhou 9isamannedspaceship Workinpairs 1 Anyoneoutthere 2 LifeonEarth3 Thesunandotherstars4 Thestarsatnight Readthepassageandchoosethebesttitleforit planets theSun theEarth Mars thesolarsystem 行星 200billionstars It sapartoftheuniverse 宇宙 theMilkyWay A galaxyB planetC solarsystemD starE universe Matchthewordswiththepictures A B C D E B Putthewordsandexpressionsfromthesmallesttothelargest A galaxyB planetC solarsystemD starE universe B D C A E Check thetruesentences 1 Theearthisastar 2 Thesunisastar 3 Thereismorethanonegalaxyintheuniverse 4 Thelightfromthestarsinothergalaxieshastravelledforalongtimetoreachus 5 Scientistshavereceivedmanymessagesfromspace 6 Spaceshipshavevisitedmostoftheuniverse Answersomequestionsaboutthepassage 1 HavewefoundlifeonMars 2 Howmanyplanetsarethereinthesolarsystem 3 Whichislarger thegalaxyortheuniverse 4 Whathavescientistsdonetolookatotherplanets 5 Istherelifeoutthereinspace No wehaven t Eight Theuniverse Theyhavesentlotsofspaceships Wedon tknow wehaveneverfoundanylifeonotherplanets The1stPara Questions 1 Howlonghastherebeenlifeontheearth 2 Havewefoundlifeonanyotherplanetsyet Therehasbeenlifeontheearthforhundredsofmillionsofyears No wehaven t 1 Whatiscalledthesolarsystem Whatisit 2 Howmanyplanetsarethereinthesolarsystem 3 Whydon tscientiststhinkthey llfindlifeontheotherplanets Thesunanditsplanetsarecalledthesolarsystem ItisasmallpartoftheGalaxy theMilkyWay The2ndPara Questions Thereareeightplanets Becausenoneofthemhasanenvironmentlikethatoftheearth Whathavescientistsdiscovered 2 Whyisitimpossibletoimaginehowlargetheuniverseis They vediscoveredmanyothergalaxiesintheuniverse Becausetheyareveryfarawayandtheirlighthastotravelformanyyearstoreachus The3rdPara Questions Scientistshave theplanetMarsto Theyhaveevensentspaceshipsto thesolarsystem However nospaceshiphastravelled otherstarsinourGalaxy The4thPara sentspaceshipsto takephotos traveloutside farenoughtoreach 1 成百万年2 在其它的行星上3 绕太阳转4 他们中没有人5 被叫做6 太阳系7 一小部分8 几十亿的星星9 在宇宙中10 许多其他的星系11 距离好远12 不得不 必须13 足够远14 如此多15 和某人联系 millionsofyearsonanyotherplanetsgoaroundthesunnoneofthembecalledthesolarsystemasmallpartofbillionsofstarsintheuniversemanyothergalaxiesfarawayhave hastofarenoughsomanycommunicatewithsb phrasesKey Languagepoints 1 Scientiststhinkthattherehasbeenlifeontheearthforhundredsofmillionsofyears 科学家们认为地球上的生命已经有上亿年的历史 hundred前加基数词 表示 一百 二百 三百 hundred要用单数形式 hundred与of连用表示 数百 时 hundred要用复数形式 即hundredsof 例如 Thereareeighthundredstudentsinourschool Therearehundredsofpeopleinthepark Weplanted treeslastyear A hundredsofB hundredofC fivehundredsD fivehundredof thousand million billion和hundred的用法相同 Practise 2 Withsomanystarsintheuniverse arewealone oristherelifeoutthereinspace 宇宙中有这么多星球 我们是孤独的吗 抑或太空中还有其他生命存在呢 Withsomanythingstodo wehavenotimetoplay 要做的事情这么多 我们都没时间玩了 withsomanystarsintheuniverse是介词短语 作伴随状语 类似的例子还有 Thewomanstoodtherewithherhandsinthepockets 那个女士站在那里 手插在口袋里 Practise Whydoyoualwayssleep BecauseI mafraidofthedark A byyourselfB withthedooropenC withthewindowopenD withthelighton 3 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 我们中没一个人去过火星 Noneofushas havebeentoMars 注意 none与noone nobody 的区别 none既可指人也可指物 通常与表范围的of短语连用 noone nobody 只能指人 不能与of短语连用 如 Noneofushas havebeentoSanya 我们都没去过三亚 2 none与数量有关 可回答howmany问句 表示 一个也没有 而noone表示 什么人也没有 可回答who问句 如 Whoareyouspeakingto Howmanystudentsarethereintheroom Noone None that是指示代词 为避免重复 可用that或those来代替前面已提到过的人或事物 Theairinthecountrysideisfresherthan inthecity Thestreetsinthecityarewiderandthebuildingsaretallerthan inthecounty Theenvironmentismuchcleanerthan inthecity ThepopulationofShanghaiismuchlargerthan ofNanning that those that that 4 However nospaceshiphastraveledfarenoughtoreachotherstarsinourGalaxy 然而 没有一个航天器去到足以到达我们银河系其他恒星那么远的地方 enough todoadj adv enough todosth 足够 可以 not adj adv enough todosth 不够 不可以 1 我们有足够的钱花 Wehave 2 他跑得够快 很快追上了我们 Heran catchupwithussoon 3 他年龄不够大 照顾不了自己 He enoughmoneytospend fastenoughto isn toldenoughtolookafterhimself Completethepassagewiththewordsandexpressioninthebox communicateenvironmentnonesolarsystemuniverse Istherelifeonotherplanets Therearesevenotherplanetsinour 1 but 2 ofthemhasa n 3 likethatoftheearth solarsystem none environment Spaceshipsfromtheearthhavedonesurveysoftheotherplanets buttheyhavenotfoundanylifethere Whyhasnoonefromotherplanetstriedto 4 withus Itistruethatscientistshavenotdiscoveredlifeonotherplanetsinthe 5 yet butsomescientistsbelievethattheywillfinditsomeday communicate universe Quiz 用方框中的单词的正确形式完成下列句子 1 ofthestudentshasbeentoAustralia 2 A Howmuchisyournewcoat B It me150yuan billioncostplanetalonenone None cost 3 A Doyouoftengoonline ZhaoHui B No IliketogoonlinewhenIam athome 4 A HowmanypeoplearethereinChinanow B Ithasreached1 3 5 Theboyisonlyfiveyearsold butheknowsaboutmany alone billion planets 用already yet just ever或nev