必修3u4warming&reading

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1、Unit4Astronomy:thescienceofthestarsWarmingup&ReadingTask1:WarmingupStep1:GuessingCanyouguesswhatkindofPhenomenonitisorwhoishe?Thetotalsolareclipse日全食onJuly222009inourcityaChinesemananastronautShenzhouⅤOct.15,2003YangLiweiApicturetakenbyYangLiweiSeeingtheearthfromspaceTh

2、eSolarsystemWarmingupStep2:DoingDoyouknowhowmanyplanetscirclearoundthesuninoursolarsystem?Whatarethey?Canyoumatchthenameswiththeplanets?海王星Neptune水星Mercury金星Venus地球Earth火星Mars木星Jupiter土星Saturn天王星UranusOnwhichplanetaretherelivesatpresent?theEarthHowLifeBeganontheEarth？？？Ho

3、wdidtheearthbegin?Eachreligionandculturehasitsownideasaboutthebeginningoftheearthandlife.Task2:Pre-readingWhatdoyouknow?Panguseparatedtheskyfromtheearth盘古开天Nuwamendedtheheavenandcreatedhumanbeingsfromtheclay(粘土).GodReligiousBeliefsAccordingtotheBible,Godcreatedtheworldins

4、evendays.Howaboutfromscientificpoints?Reading:HowlifebeganontheearthTask3:whilereadingStep1.SkimmingandScanningReadthetextquicklyandtrytogetkeywordsandmatchthemainideaofeachPara.Para.1a.Theformation(形成)oftheearth.Para.2b.Theimportanceofwaterforlife.Para.3c.Awidelyaccepted

5、theoryabouttheformationoftheuniverse.Para.4d.Thearrivalofhumansandtheirimpactontheearth.Para.5e.Thedevelopmentofplantsandanimalsontheearth.1.Readparagraph1quicklyandanswerthequestion:Step2.CarefulreadingWhatdidtheuniversebeginwith?2.Readparagraph2—3.Let’sgettoknowhowlifeb

6、eganontheearth.CarefulreadingAfterthe“BigBang”,whathappenedontheearth?forseveralbillionyearsafter“BigBang”between4.5and3.8billionyearsagoWhathappenedontheearthatthattime?whatdidtheexplosionproduce?AcloudofdustsettleintoasolidglobeExplode…withfire&rock(produceC,N2,H2O,ando

7、thergases)madeatmospherewaterappearedCooldownLifebeganontheearthWhatdidthewaterdoontheearth?dissolveharmfulgasesinto…3.Readparagraph4and5quickly,andfindouttheorderofdevelopmentoflifeontheearth.whatkindoflifeformappearedfirst?smallplantsonthewatershellfish&otherfishGreenpl

8、antsbegantogrowonlandinsectsandamphibianscanliveonlandandinthewatertheplantsgrewintoforestsrepti