2023學(xué)年完整公開課版米占東直播9

米占東名師網(wǎng)絡(luò)工作室直播課堂Unit4Astronomy:thescienceoftheearthReading主講：米占東Unit4Astronomy:thescienceofthestarsReadingHOWLIFEBEGANONTHEEARTHWarmingupWhatarethenamesoftheeightplanetsthatcirclethesun?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Uranus

AQuizGame1.Howoldistheearth?

A.About3.5billionyearsB.About4.5billionyearsC.About5.5billionyearsD.About6.5billionyears

2.______oftheearthsurfaceiscoveredbywater.A.20%B.30%C.50%D.70%3.HowmanyplanetsarethereintheSolarSystem?

A.6B.7C.8D.9

4.Whatisthetotalpopulationofhumansontheearth?

A.About3.5billionB.About4.5billionC.About5.5billionD.About6.5billion5.Howlongdoestherotation(自轉(zhuǎn))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.APrediction

Lookatthepictures.

Doyouknowthetopicofthisunit?海洋里的細(xì)胞開始分裂登陸爬行動物恐龍Mammals人類的興起Doyouknowwhatitwaslikebeforelifeappearedonearth?1.Theoriginoflifeonearthisaquestionthatinterestsastronomers.Whatdoyouknowaboutit?Pre-reading2.Eachreligionandculturehasitsownideasabouthowlifebeganonearth.Whatdoyouknow?

InChina,weallknowthatPanguseparatestheskyfromtheearthandNvwamadehumans.Panguseparatestheskyfromtheearth.

Nvwamadehumans.Otherlegendsaboutthebeginningofuniverse.TheBiblicalAccountDay1:GodspokeandseparatedlightfromdarknesscreatingDayandNight.Day2:Godspokeandseparatedthewatercreatingskyandocean.Day3:Godspokeandcreateddryland.Day4:Godspokeandcreatedthesun,moonandstars.Day5:Godspokeandcreatedlivingcreaturesintheairandsea.Day6:Godspokeandcreatedthelandanimalsandman.Day7:GodrestedandblessedthisdaycallingitHoly.IndiaBrahmaisthegodfirstrepresentedintheHinduTriad.Heisthecreatoroftheuniverseandalllivingbeingsaresaidtohaveevolvedfromhim.▲BigBangGasNewstarsDyingstarsremnantsReadthetextquicklyandfillintheblanks.

Thetextmainlytellsustheformationofthe________andthedevelopmentof______onit.Scanning

earth

lifeHowlifebeganontheearthReadthewholepassagequicklyandmatchthemainideaofeachparagraph.

Para.1Para.2Para.3Para.4Para.5TheimportanceofwaterTheformationoftheuniverseThearrivalofhumanbeingsTheformationoftheearthThedevelopmentofplantsandanimals1.Whendidthe“BigBang”happen?

Ithappenedseveralbillionyearsago.Readthepassagequicklyandanswerthequestions.Skimming2.Whatformwastheearthafterthe“BigBang”?

Theearthwasstilljustacloudofdust.3.Whatmadeuptheearth’satmosphereaftertheearthexploded?

Carbon,nitrogen,watervapourandothergases.4.Howdidwatercomeintobeingontheearth?

Astheearthcooleddownafteritexploded,watercameintobeing.5.What’sthesignificance