英语课件：人教版必修三Unit4SectionⅠ.ppt

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1、Unit4Astronomy：thescienceofthestarsSectionⅠWarmingUp&Reading—Preparing预习多维感知SectionⅠ预习多维感知►StepOne：AskandDiscussion1．Doyouknowhowmanyplanetscirclearoundthesuninoursolarsystem?__________________________________________________________答案：Venus(金星)；Earth(地球)；Mars(火星)；Mercury(水星)；Jupiter(木星)；Saturn

2、(土星)；Uranus(天王星)；Neptune(海王星)2．Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknow?________________________________________________________________________答案：InChina，weallknowthatPanguseparatestheskyfromtheearth.Inwesternculture，Godcreatedtheworldinsixdays.Manyscientistsb

3、elievethattheuniversebeganwithahugeexplosioncalledthe“BigBang”．►StepTwo：FastReadingScanthetextandthenchoosethebestansweraccordingtothetext.1．Whatisthecorrectorderaccordingtothetext?①Thecleveranimalswithhandsandfeetappearedandspreadallovertheearth.②The“BigBang.”③Smallplantsbegantoappearonthesurf

4、aceofthewater.④65millionyearsago，theageofthedinosaursended.A．②①③④B．④③②①C．②④③①D．②③④①答案：D2．Howdidtheatmosphereontheearthappear?A．Itcamefromspace.B．Itcamefromtheexplosion.C．Itcamefromtheoceans.D．Itcamefromtheforests.答案：B3．Inoursolarsystem，whydoeslifeonlyexistontheearth?A．Becauseitisverywarmontheea

5、rth.B．Becauseitiscoolenoughontheearth.C．Becausethereisplentyofwaterontheearth.D．Becauseitisbigenough.答案：C4．Whydidplantsappearearlierthananimals?A．Becauseplantscouldproduceoxygen，whichwasimportantforanimals.B．Becauseplantsweremoreadvancedthananimals.C．Becauseanimalsneededmorewater.D．Becauseplant

6、sneededmorewater.答案：A5．Accordingtothepassagewecanknow________.A．onlytheearthhaslifeonitinspaceB．oxygenintheatmosphereontheearthcamefromthe“BigBang”C．humansarethecleverestanimalsoftheearthD．plantsplayedanimportantpartintheappearanceofanimals答案：D►StepThree：CarefulReading1．Readthetextcarefullyandt

7、henanswerthefollowingquestions.(1)Whywastheearthdifferentfromotherplanets?___________________________________________答案：Becausethewaterremainedontheearth.(2)Whydidtheplantsgrowbeforetheanimalscame?_________________________________