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课前自主预习单词闯关1.环境(n.)______________2．太阳的；与太阳有关的(adj.)________3．系统，体系(n.)________4．群；组(n.)________5．宇宙(n.)______________6.光线；光亮(n.)________7．可能的(adj.)________→(反义词)____________8．联系；交流(n.)______________→(v.)________9．没有一人；没有一个；一点儿也没有(pron.)_________→(反义词)________10.那，那个pron._________→(对应词)________groupuniverselightimpossiblepossibleenvironmentsolarsystemcommunicationcommunicatenoneallUnit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3thatthis短语互译1.数以亿计的____________________________________2.绕着……转_____________3．和……交流_____________________4.在地球上__________________5．solarsystem__________________6.asgoodas___________________7．takephotos______________8.noneof…______________________communicatewith…ontheearth太阳系和…一样好…中没有一个照相hundredsofmillionsofto…goaround…Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3连词成句1.them，has,that,of，an,like，noneof,environment,theearth(它们中没有一颗有像地球那样的环境。)______________________________________________________2．life,on,there,millionsof,theearth,for,hasbeen,years,hundredsof(地球上有生命已有数亿年了。)____________________________________________________________________________________________________________3．spaceship,travelled,reach,other,farenough,stars,to,however,no,has,inourGalaxy(然而，没有一艘宇宙飞船能飞得足够远以到达银河系的其他恒星。)____________________________________________________________________________________________________________4．impossible,large,itis,to,how,is,theuniverse,imagine(根本无法想象宇宙有多大。)______________________________________________________5．named,the,after,planet,Saturday,is,Saturn(星期六是以土星的名字命名的。)______________________________________________________Noneofthemhasanenvironmentlikethatoftheearth.Therehasbeenlifeontheearthforhundredsofmillionsofyears.However,nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.Itisimpossibletoimaginehowlargetheuniverseis.Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3SaturdayisnamedaftertheplanetSaturn.课文初探根据课文内容完成下列句子，每空一词。1．Therehasbeenlifeontheearthfor________________________________yearsaccordingtothescientists.2．Accordingtothepassage,________planetsgoaroundthesun.3．Wecallthesunanditsplanets________________________．4．Thelightoftheothergalaxieshastotravelfor________________toreachus.5．ScientistshavesentspaceshipstotheplanetMarsinorderto________________.eightmanyyearssystemofmillionsofthesolarUnit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3hundredstakephotos课堂互动探究词汇点睛1nonepron.没有一个；没有一人；一点儿也没有[观察]Noneofthemhasanenvironmentlikethatoftheearth.它们中没有一颗(行星)有像地球那样的环境。There'snooneintheclassroom.教室里没人。Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3[辨析]none与noonenone(1)意为“没有一个”。既可指______，又可指______，可与______连用。(2)①noneof与可数名词复数连用作主语时，谓语动词用单数或复数形式均可。Noneofthestudentscomes/comefromAmerica.②noneof与不可数名词连用作主语时，谓语动词用单数形式。(3)常用于回答howmany/howmuch引导的疑问句。noone(1)意为“________”。只可指人，不可指物，________(能/不能)与of连用。(2)作主语时，谓语动词用单数形式。(3)只能回答以who开头的疑问句。Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3人物of没有人不能—Howmanyboysarethereintheroom?房间里有多少个男孩？—None.一个也没有。—Whoisintheroom?谁在房间里？—Noone.没人。Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3活学活用(1)[2016·齐齐哈尔]—Whowashurtinthetrafficaccident？—.A.NoneB.NooneC.Nothing[答案]BUnit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3(2)[2017•武汉]—Thefrozenyogurttasteslikeicecreambuthas________ofthefat.—Itsuitsmefine.I'monadiet.A．noneB．neitherC．anyD．someUnit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3[答案]A[观察]AgroupofpeoplearewalkinguptheGreatWall.一群人正在登长城。[探究]group是可数名词，常构成短语agroupof,意为“”，其后只能接可数名词。2groupn.群；组Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3一群；一组[拓展](1)agroupof后面加复数名词时，谓语动词用复数形式；而apairof/apieceof等后面加复数名词时，谓语动词用单数形式；“数词＋pair(s)of”在句中作主语时，谓语动词要与pair的单复数保持一致。Agroupofstudentsarerunningontheplayground.一群学生正在操场上跑步。Threepairsofjeansareinthebag.包里有三条牛仔裤。(2)ingroups意为“成群结队地；以小组为单位”。Doyouteachyourstudentssinglyoringroups?你教学生是单个教还是按组教？Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3活学活用(1)用所给动词的适当形式填空①Look!AgroupofAmericans______________(visit)theHistoryMuseumnow.②Thepairofsunglasses________(look)cool.Thesunglasses________(be)verycolourful.(2)单项填空It'sagoodideatolearnEnglish________．A．bygroupsB．ingroupC．ingroupsD．atgrouparevisitingUnit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3[答案]Clooksare3communicatev.联系；交流[观察]Sheoftencommunicateswithhermotherbyphone.她经常用电话和妈妈通话。[探究]communicate用作不及物动词，意为“”。常用搭配：communicatewithsb.意为“”。Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3通讯；沟通；交流和某人沟通/交流/通话[拓展]communicate用作及物动词，意为“传达；传递”。其常用搭配：communicatesth.tosb.意为“把某事传达给某人”。Peoplenowcommunicategreetingstoeachotherbyemailorbymobilephone.人们现在使用电子邮件或手机传递问候。Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3[2016·菏泽]Today，WeChat（微信）becomesverypopular，andmoreandmorepeopleliketouseittoeachother.A.dependonB.communicatewithC.believein活学活用[解析]B考查动词短语辨析。句意：现在，微信变得非常受欢迎，而且越来越多的人喜欢使用它来与彼此________。dependon意为“依赖，依靠”；communicatewith意为“和……交流”；believein意为“相信”。由句意可知此处是指越来越多的人使用微信交流，故选B。Unit2Wehavenotfoundlifeonanyotherplanetsyet.&Unit3句型透视1Thesunanditsplanetsarecalledthesolarsystem…太阳和它的行星被称为太阳系……[探究]“arecalled”是被动语态形式。当主语是谓语动词的动作对象时，句子要用被动语态。被动语态结构是“主语＋be动词＋done＋其他”。Themachineismadein