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Unit2We havenot foundlife onany otherplanets yet.I TeachingmodelReading andwriting.II TeachingmethodTop-down approachIIITeaching aims
1.Listen forspecific information.
2.Talk aboutspace travel;participating ina role-play.
3.Read andfind outinformation fromsimple textsand choosethe besttitle.
4.Write apassage todescribe thepicture.IVTeaching ObjectivesKeyvocabulary:none,environment,that,solar,system,solar system,group,galaxy,universe,light,impossible,take-took-taken,out,communicateV TeachingaidsRecorder,OHP,videoVI TeachingStepsStep1Warming-up
1.Show somepictures toreview thetext ofUnit
1.
2.Show somepictures.
3.Talk aboutthe pictures.
4.Introduce thenew words.
5.Read thewords afterthe teacher.Step2Work inpairs.Step3Reading
1.Play therecording andlisten to the tapecarefully.
2.Ask thestudents toread throughthe passage.Step4Check Vthe truesentences.
1.Ask thestudents toread thesentences inActivity
3.
2.Read thepassage again.
3.Check Vthe truesentences.
4.Check witha partner.
5.Call backthe answersfrom thewhole class.Step5Complete thepassage.Step6Language points
1.Scientists thinkthat therehas beenlife onEarth forhundreds ofmillions ofyears.科学家认为地球上的生命已经有亿万年了数百万,数百,成千上万,millions ofhundreds ofthousands ofbillions of数十亿e.g.There arebillions of stars inthe Galaxy,and oursun isonly oneof them.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,we havenot foundlife onany otherplanets yet.然而,我们还没有在任何其他行星上发现生命用于否定句和疑问句,意思是“还,尚“的意思是“还没,yet not…yet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我还没有得到进一步的信息I haventlearnt anyfarther informationyet.你收到她的来信了吗?Have youreceived herletter yet
3.The Earthis aplanet andit goesaround theSun.Seven otherplanets also.地球是颗行星,它围绕着太阳转还有其他七颗行go aroundthe sun星也围绕着太阳转太阳系的其他七颗行星:水星、金星、火星、木Mercury VenusMars星、土星、天王星、海王星Jupiter SaturnUranus Neptune
4.None of them hasan environmentlike thatoftheearth,so scientistsdonot thinkthey willfind lifeon them.他们中没有一个有像地球这样的环境,因此科学家认为在他们上面找不到生命表示三个以上一个也没有做主语时,谓语动词可用单数none of...或复数如:我们中没一个去过火None ofus has/have beentotheMars.星
5....our solarsystem isa smallpart ofa muchlarger groupofstarsand我们的太阳系只是一个由恒星planets,called the Galaxy orthe MilkyWay.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专指银河系”,也可以称作而theGalaxythe MilkyWay galaxy则泛指“星系”例如:科学家们发现了一个遥远的星Scientists havediscovered adistant galaxy.系
6.So howlarge isthe universeIts impossibleto imagine.所以宇宙有多大?我们无从想象句型形容词动词原形,意思是“做某事很……”:ltis++to+读这些单词很难It isdifficult toread thesewords.她独自一人呆在那黑屋子里She wasalone inthat darkroom.Step7Writing.Write apassage todescribe thepicture.Use youranswers tothe questionsinActivity5to helpyou.。