必修三unit4warmingupandReading

HOWLIFEBEGANONTHEEARTHWarmingupWhatarethenamesoftheeightplanetsthatcircleoursun?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UranusAQuizGame1.Howoldistheearth?A.About3.5billionyearsB.About4.5billionyearsC.About5.5billionyearsD.About6.5billionyears2.______oftheearthsurfaceiscoveredbywater.A.20%B.30%C.50%D.70%3.HowmanyplanetsarethereintheSolarSystem?A.6B.7C.8D.94.Whatisthetotalpopulationofhumansontheearth?A.About3.5billionB.About4.5billionC.About5.5billionD.About6.5billion5.Howlongdoestherotation(自转)oftheearthtake?A.12hoursB.24hoursC.amonthD.365days6.Whichcontinentisthesmallest?A.AfricaB.NorthAmericaC.SouthAmericaD.Oceania7.OnwhatdayistheEarthdaycelebrated?A.April22B.May4C.August21D.November118.Whichoceanisthelargest?A.ThePacificOceanB.TheArcticOceanC.TheIndianOceanD.TheAtlanticOcean9.Whichcountryhasthelargestarea?A.CanadaB.ChinaC.RussiaD.U.S.APredictionLookatthepicture.Doyouknowthetopicofthisunit?海洋里的细胞开始分裂登陆爬行动物恐龙Mammals人类的兴起Doyouknowwhatitwaslikebeforelifeappearedonearth?可以演化成低级生命的小液滴水泡状的太空原始生命体Itwasfullofwater.1.Theoriginoflifeonearthisaquestionthatinterestsastronomers.Whatdoyouknowaboutit?Howoldistheuniverse?(severalbillionyearsago)HowoldistheEarth?(between4.5and3.8millionyearsago)WhichwerethefirstcreaturesorplantsonEarth?...Pre-reading2.Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknow?InChina,weallknowthatPanguseparatestheskyfromtheearthandNvwamadehumans.Panguseparatestheskyfromtheearth.中国神话传说中有盘古开天地的说法。巨人盘古用一把利斧劈开混沌,将天地分开。死后,他的气息化成风和云,声音变成轰轰的雷声,左眼化为太阳,右眼化为月亮,手足与四肢变成大地的四极与五方的名山,血液化成江河,筋脉铺成道路,肌肉形成田地,须发成为星星,牙齿和骨骼化为金属、珍珠、玉石,汗水成为滋润万物生长的甘霖和雨露。Nvwamadehumans.Otherlegendsaboutthebeginningofuniverse.TheBiblicalAccountDay1:GodspokeandseparatedlightfromdarknesscreatingDayandNight.Day2:Godspokeandseparatedthewatercreatingskyandocean.Day3:Godspokeandcreateddryland.Day4:Godspokeandcreatedthesun,moonandstars.Day5:Godspokeandcreatedlivingcreaturesintheairandsea.Day6:Godspokeandcreatedthelandanimalsandman.Day7:GodrestedandblessedthisdaycallingitHoly.▲BigBangGasNewstarsDyingstarsremnants平面图太阳系地球大气1.Whendidthe“BigBang”happen?Ithappenedseveralbillionyearsago.ScanningReadthepassagequicklyandanswerthequestions.2.Whatformwastheearthafterthe“BigBang”?Theearthwasstilljustacloudofdust.3.Whatmadeuptheearth’satmosphereaftertheearthexploded?Carbon,nitrogen,watervapourandothergases.4.Howdidwatercomeintobeingontheearth?Astheearthcooleddownafteritexploded,watercameintobeing.5.What’sthesignificanceofthepresenceofwaterontheearth?Itallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.6.Whatwasimportanttothedevelopmentoffish?oxygen.7.Whatmadepossibletheriseofmammalsontheearth?Thedisappearanceofdinosaursmadethepossibletheriseofmammalsontheearth.8.Whyaremammalsdifferentfromalllifeformsinthepast?Theygavebirthtoyoungbabyanimalsandproducedmilktofeedthem.CarefulreadingI.Readthepassagecarefullyandmatchthemainideawitheachparagraph.Para.1Theformation(形成)oftheearth.Para.2Theimportanceofwaterforlife.Para.3Awidelyacceptedtheoryabouttheformationoftheuniverse.Para.4Thearrivalofhumansandtheirimpactontheearth.Para.5Thedevelopmentofplantsandanimalsontheearth.II.Fillintheblanksinthefollowingform.______begantoformandcombinetocreatestarsandotherbodies.BigBangWhathappenedTimeAtoms●Dustsettledintoasolidand______globe.●Theearthexplodedtoproduceits___________.●Thecontinued________ofwaterallowedtheearthtodissolveharmfulgasesand_____intotheoceansandseas.Between4.5and3.8billionyearsagoviolentatmospherepresenceacids●Thefirstsmallplantsonthesurfaceofthewaterproduced_______.●Early________andallsortsoffishappeared.●Greenplantsbegantogrowonland.●Insectsand___________appeared.Manymillionsofyearslateroxygenshellfishamphibians●________appearedandtheylaideggs.●Dinosaursdeveloped,laideggsand_______formorethan140millionyears.●Mammalsroseand____________babies.ManymillionsofyearslaterReptilesexistedgavebirthtoHumansproducetoomuchcarbon_______,makingtheearthtoohot.Now●Somesmall______animalswithhandsandfeetappearedandspreadallovertheearth.About2.6millionyearsagocleverdioxideHowlifebeganontheearth.“BigBang”otherbodies_______starsEarth:acloudof_____atomsdustSummaryasolid______theearth’s___________other_____Water:___________tothedevelopmentoflifewatervapournitrogencarbonextremelysmall_______onthesurfaceofthewaterglobegasesatmospherefundamentalplantsearly_________andallsortsoffishgreenplantsonlandlandanimalsinsectsamphibians________hugeanimals(dinosaurs)theriseof__________humanbeingsshellfishreptilesmammalsWehaveonlyoneearth!!!SpeakingWhatshouldwedoforourearth?Youcanusethefollowingwordsorphrasestohelpyou:prevent…from…harmfulglobalwarmingcarbondioxideinturndependonasaresultthusatmosphereWhatshouldwedoforourearth?Let’stakepartintheactivitiestosavetheearth!Howlifebeganonearthisoneofthebiggestpuzzlesthatscientistsfoundhardtosolve.Whatotherpuzzlesarehiddeninthepassage?Findthemoutanddosomeresearch.