必修3 Unit4 Astronomy

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1、Astronomy:thescienceofthestarsUnit4Inoursolarsystemeightplanetscirclearoundthesun.1111TheSolarSystem地球______木星______火星______水星________海王星_______F.土星________G.天王星_______H.金星________EarthJupiterMarsMercuryNeptuneSaturnUranusVenusTheSolarSystemCanyounametheeightplanets?Let’sappreciatesomebeautifulpi

2、cturesofthesolarsystem.Totallunareclipse(月全食)Totalsolareclipse(日全食)Meteorrain(流星雨)Comet(彗星)HowdidlifebeginonEarth?Howwastheuniverseformed?TheuniversebeganfromtheBigBang.Lifefirstbeganintheseaontheearth.Studyofthegroupsoflife(种类/物种)Lookatthepicturesandtellthegroups.plantsreptiles(爬行类)shellfish(贝类)f

3、ishinsectsmammalsamphibians(两栖类)SkimmingtogetgeneralideasReadingComprehensionIWhoknowsexactlyhowtheearthbegan?A.Scientists.B.Astronomers.C.Noone.D.Aliens(外星人).2.Whatdoes“smallcleveranimals”referto?A.Insects.B.Reptiles.C.Dinosaurs.D.Humans.SkimmingReadthepassagequicklytofindthemainideaofeachparagra

4、ph.Paragraph1:AwidelyacceptedtheoryabouttheformationoftheuniverseParagraph2:TheformationoftheearthParagraph3:TheimportanceofwaterforlifeParagraph4:ThedevelopmentofplantsandanimalsontheearthParagraph5:ThearrivalofhumansandtheirimpactontheearthScanningtogetdetailinformation1.Theearthwasdifferentfrom

5、theotherplanetsinthat__________.A.acloudofdustwasaroundtheearthB.comfortableclimateremainedontheearthC.waterremainedontheearthD.carbonremainedontheearthReadingComprehensionIIScanning2.Theplantsgrewbeforetheanimalsbecausetheyprovide__________.A.nutrientsforanimalstoabsorb(吸收)B.oxygenforanimalstobre

6、atheC.necessarytemperatureforanimalstokeepwarmD.watervapourforanimals3.Whichofthefollowingstatementsistrue?A.Thedustsettledintoasolidglobebetween4.5and3.6billionyearago.B.Thefirstsmallplantsbegantoappearonthesurfaceoftheland.C.About2.6millionyearsagosomesmallcleveranimalsappearedandspreadintheocea

7、n.D.Dinosaursdiedoutlongbeforehumanbeingsdevelopedontheearth.Puttheorderofdevelopmentoflifeintoatimeline.Usethereadingpassagetohelpyou.(P.27:2)1Insectsandamphibiansappeared.2Dinosaursappeared.3Theearthbecameasoli