unit4 astronomy- the science of star-warming up & reading教案

《unit4 astronomy- the science of star-warming up & reading教案》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、Unit4Astronomy:thescienceofstar-Warmingup&Reading教案Unit4Astrn:thesienefstar-aringup≈Reading教案HlifebeganntheearthStepne:aringupTas1:sense(常识)fsienePhsis,heistr,bilg（studflife),gelg(地质学)andatheatisaresienesubetsSesienesubetsillstudtrrefthesesubets,frexaple

2、,thestudfphsisandatheatisisastrn(天学)anuunderstandthefllingbinedsienesubets1phsis+atheatis=astrn2gelg+phsis=gephsis（地球物理学）3bilg+heistr=biheistr()/ediine()4geplitis（地缘政治学）=_________+_________biengineering(_____________)=_____________+_______________tas2:nsens

3、efbilg------studfthegrupsflife(生命的种类/物种)Latthepituresnthesreenandudgethegrupsasquilasuanhatisthestiprtantnditinfrlifetdevelp(gr)?(ater,air---xgen)SteptPre-readingTherldislieabigfailIt’snderfulandlrfulbeausefdifferentindsflifelivingtgetherButhdidlifebeginnth

4、eearth?Thefirstquestinfrsientiststanserishaterappearedntheearth?Stepthree:ReadingTas1:Fast-reading(Para1)1hatistheiprtantevent(事)ttheearthbefretheappearanefater?2hisateriprtantfrthebeginningflife?Tas2:Sanning(Para1,2,3)thebeginningfater≈thebeginningflife

5、SanPara1:thebeginningfater1theBigBang2aludfdust(bineint)3aball/aslidshape(explde)4atervapur,xgen,…andthergas(ldn)aterSanPara2,3:thebeginningflife(puttheintrightrder)AinsetsandaphibiansappearBreptilesappearshellfishandtherfishappearDdinsaursappearEsallplants

6、grntheaterFplantsbegintgrndrlandGaals(inludinghuans)appearater6______7_______8_______9______10______11______12______Tas3:areful-reading1htheearthasdifferentaftertheaterappeared?2hdidplantsgrbefreanials?3hdidanialsfirstappearintheseantntheland?4hatistheaindi

7、fferenebeteenreptilesandaals?anugiveseexaplesfaals?StepFur:perativelearningDissussthefllingquestins,andusePara4thelpu1hdpeplebeethestiprtantanialsntheplanet?2Dpepletaeareftheearth?hatarethedingttheplanet?3hatistheresult?Stepfur:Disussfrraleduatin•hdid

8、dinsaursdieut?•Duthinthereillbeasuddenhangefeatherntheearth?•hatshuldpepledtprteturearth?Exxfrevaluatin:Afterthe“BigBan”,theearthasustaludf__________dustIt________ludlithfireandrs,hihere___