八年级下册英语外研版【快乐学案】Unit2

Module3Unit2Wehaven’tfoundlifeonotherplanetsyet.课型：读写课1.阅读文章，能了解文章大意；2.了解天体中各类星球的排列顺序；3.会用本单元的新词汇4.能根据关键词或者图例复述课文，并发表自己的看法。【课前准备】课前朗读本模块的词汇（学生自己朗读、领读或齐读）【学习过程】1.采用多种形式对听说课学习内容进行复习。2.背景知识——OursolarsystemOursolarneighborhoodisanexcitingplace.TheSolarSystemisfullofplanets,moons,asteroids,comets,minorplanets,andmanyotherexcitingobjects.Learnaboutit,theexplosivemoonthatorbitstheplanetJupiter,orexplorethegiganticcandesertsonMars.TheSunLikealltheotherplanetsinSolarSystem,theEarthrevolvesaroundamedium-sizedstar.ThisstarprovidesalltheenergynecessarytosustainlifeonEarth.Mercurymeans：Inastronomymythology,MercurywastheRomanversiomofthegoodHermes.Hewadthemessengerfortheothergods,andforthisreasomMercuryisoftendepictedinpictureswithwingedsandals.Inadditiontodeliveringmessages,hewasalsotheprotectoroftravelers,andmerchants.Venusmeans:Inastromomymythology,VenuswasRomangoddessofloveandbeauty,InGreekhernamewasAphrodite.Earthmeans:Inastronomy,mythology,HerGreeknamewasGaea.Earthwasthemotherofthemountains,streamsandallotherlandformations.ShewasmarriedtoUranus.Marsmeans:Inastronomymythology,MarswastheRomangodofwarandagriculture.Itmaynotseemlikethesetwothingsgotogether,buttheydo.Marsprotectedthosewhofoughtfortheircommunities,andstayedhometoraisecropsforfood.Jupitermeans:Inastronomymythology,JupiterknownasZeusisGreeceoverthrewhisfatherSaturntobecomekingofthegods.HethenUniversewithhisbrothersNeptuneandPluto.Saturnmeans:Inastronomymythology,Saturnwasthegodofagriculture,hewascalledCronusbytheGreeks.HeisthesonofUranus,andfatherofJupiter.Saturnoverthrewhisfathertobecomekingofthegods,butwasthenoverthrownhimselfbyhissonJupiter.Uranusmeans:Inastronomymythology,UranuswasthelordlftheskiesandhusbandofEarth.HewasalsothekingofthegodsuntilhissonSaturnoverthrewhim.Neptunemeans:Inastronomymythology,Neptunewasoriginallyonlythegodofwater,butwaslaterextendedtotheoceanwhenhebecameassociatedwiththeGreekgodPoseidon.3.多层阅读。a.快速默读文章，回答下面的问题：（1）Howlonghasthelifebeenontheearth？（2）Howmanystarsinourgalaxy？（3）Whohasdiscoverddanylifeinspaceyet?b.再次阅读文章，把下列单词按从小到大的顺序排序。planetsolarsystemstaruniversegalaxyc.小组讨论：根据课文中出现的内容，判断句子正误，并能够把错误的句子改正过来。（P21Part4）4、语言知识归纳。（1）请精读文章，找出并写下疑难问题。（2）结队或小组内交流，记下仍然解决不了的问题。（3）语言点导学：1）ScientiststhinkthattherehasbeenlifeonEarthformillionsofyears.Therehasbeen早就已经有/存在了。Therebe句型在现在完成时中的运用形式要注意助动词has或者have位置。我们想在教室里早就有许多学生了。Wethinktherestudentsintheclassroom.2)Noneofthemhasanenvironmentwithair.Noneofthem它们中一个也没有。其后的谓语动词根据需要用单数。他们中一个也没有想乘飞船去太空的。ofthemtogospacebyspaceship.3)Thestarsweseeatnightarethesunsinothersolarsystems.Thestarsweseeatnight我们在夜晚看到的星星。注意“星星”后面的成分运用。如我们在白天看到的太阳——thesunweseeinthedaytime他们在操场上看到的人是我们校长。Thepersonintheplaygroundisourprinciple.4)Itishardtounderstandhowlargetheuniverseis.It’shardtodosth.干某事很困难.（hard可以用其它的形容词代替变换成不同的意思。如It’seasytodosth.干某事很容易。It’sexcitingtodosth.干某事很令人兴奋。）学好英语是件很困难的事。LearnEnglishwell.看英语电影是件很令人兴奋的事。It’sseefilmsinEnglish.5)Scientistshavesentlotsofspacecrafttolookatotherplanetsinoursolarsystem.sendsb.sth.=sendsth.tosb.Hehassentmelotsofphotos.（同义句）.注意：当sth.和sb.是代词时，不能相互替换。只能用sendsth..tosb.形式。Sendittome.Sendmeit（错误）6)Havetheytriedtosendinformationtous?trytodosth.努力做某事trynottodosth努力不要做某事tryone’sbesttodosth.尽力做某事你最好努力去把英语读出来，努力不要翻译每个单词，并尽力天天这样做。You’dbetterreadEnglish,trytranslateeveryword,andtrybestdoiteveryday.注意：trydoingsth.尝试做某事Trythebackdoorifnooneanswersthefrontdoor.AknockBknockingCknockatDknockingatmessage信息(CN)apieceinformation消息(UN)apieceofmessage他喜欢我住在北京的生活的信息。HehasenjoyedmyaboutmylifehereinBeijing.他有许多关于如何提高英语的信息。HehasgotsomeaboutimprovingEnglish.（4）朗读课文，写出下列重点和词组。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）拥有空气的环境6）太阳系7）一小部分8）我们在夜晚看到的星星9）超过10）银河系11）在宇宙中12）距离好远的距离13）干某事困难14）许多太空飞船15）去太阳系外16）给我们发送信息17）努力做某事5、写作训练。__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Module3Journeytospace前置语法课：综合运用：A:1.yet,yet,already2.yet,justB:略C:略Unit1:Hasitarrivedyet?学以致用；31.D2.D3.A4.BCADUnit2:Wehaven’tfoundlifeonotherplanetsyet.(略)Unit3;Languageinuse模块练习：一；:略二：a)severalb)recentlyc)billiond)discoverede)environmentf)monthsg)aloneh)costi)showj)still三：1.Ihaven’tseenthefilmyet2.Havetheplayersf