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ModuleIIIUnit4抄写asaresult结果asaresultof...由于...的结果too...to...太...而不能...dependon依赖，取决于lookafter照顾prevent...from(doing)...阻止...做...escapefrom...逃离...inone'sturn轮到某人，接着bedifferentfrom...与...不同givebirthto...产生；分娩layeggs下蛋allowdoing允许做某事allowsb.todo允许某人做某事beallowedtodo被允许做某事befundamentalto对...是重要的intime及时ontime按时accordingto根据beginwith起源于inalldirections=朝四面八方1.What’sthemeaningoftheword“Astronomy”?I.Warmingupthescienceofstars;thescientificstudyofstarsandplanets.2.Whatwordswillyouthinkofwhenwetalkaboutthistopic?star,planet,thesun/moon/earth,solarsystem恒星行星太阳月球地球太阳系3.Howmanyplanetsareinthesolarsystem?ScientistsnowthinkPlutoistoosmalltobecalledaplanet.TheSolarSystem11115.Thenamesofeightplanets.•Mercury•Venus•Earth•Mars•Jupiter•Saturn•Uranus•Neptune1)水星2)金星3)地球4)火星5)木星6)土星7)天王星8)海王星II.Pre-reading1.Haveyoueveraskedyourmother,“Mom,wheredoIcomefrom”?2.Nearlyeverybodyhasthisorthatpuzzles:Howdohumanbeingscomeintobeing?Howdoestheearthcomeintobeing?3.InChina,therearetwolegendsaboutthesepuzzles.Doyouknowthenames?盘古开天辟地女娲补天造人4.Inthewesternculture,whocreateseverythingintheworld?III.Fast-reading1.Doyoubelieveinsuchstories?Aretheybasedonscience?2.Inthisunit,we’lllearnsomethingmorescientific.3.What’sthetitleofthetext?4.Fromthetitle,wecanpredictthatthetextmaytellustheoriginoflifeontheearth.5.Let'senjoyashortvideo.生命进化史HOWLIFEBEGANONTHEEARTH地球上生命的起源•Nooneknowsexactlyhowtheearthbegan,asithappenedsolongago.However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.Afterthat,atomsbegantoformandcombinetocreatestarsandotherbodies.•没有人确切知道地球是怎样开始形成的，因为在很早很早以前它就形成了。然而，一种普遍为人们所接受的理论是：宇宙起源于一次大爆炸，这次大爆炸将物质投射到四面八方。然后，原子开始形成并结合成恒星和其他天体。1.accordingto根据2.widelyaccepted广泛接受的3.beganwith=startwith起源于，开始于4.inalldirections=朝四面八方[句型]beginwith/startwith以……开始，从……着手[仿写]认识从实践开始。Knowledge_________________________.beginswithpractice•Forseveralbillionyearsafterthe“BigBang”,theearthwasstilljustacloudofdust.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.Itexplodedloudlywithfireandrock.•大爆炸后好几十亿年过去了，但地球还只是一团尘埃。随后它会变成什么没人能知道，直到38-45亿年前，这团尘埃才慢慢地形成一个固体的球状物。地球（开始）变得激烈动荡，不知道这个固体形状是否会继续存在下去。它（地球）猛烈的爆炸喷出了烈火与岩石。•Itwasnotclearwhether...“是否....是不清楚的”，it是形式主语，whether从句为真正的主语，即Whethertheshapewouldlastornotwasnotclear.what引导的主语从句，what作become的表语，when引导的是定语从句，修饰between4.5and3.8billionyearsago。一团不确定的，certain确定的vi.持续vilent激烈的，violence暴力2.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.1.________________________（使大家吃惊的是）isthathedidn’tcometothemeeting.Whatsurprisedeverybody2.____________（他所做的）addedtoourdifficulty.Whathedid_____wecan’tgetseemsbetterthan____wehave.A.What;whatB.What;thatC.That;thatD.That;what_____madetheschoolproudwas_____morethan90%ofthestudentshadbeenadmittedtokeyuniversities.A.What;becauseB.What;that;C.That;whatD.That;becauseAB•Theywereintimetoproducecarbondioxide,nitrogen,watervapourandothergases,whichweretomaketheearth’satmosphere.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.•最终产生了碳、氮气、水蒸气和其他多种气体，从而形成了地球的大气层。更为重要的是，地球冷却了下来，地球的表面就开始出现了水。•intime及时；终于intimetodosth及时做某事，来得及做某事ontime按时•Whatisevenmoreimportantisthat...更为重要的是...•cooldown凉下来，冷却定语从句2.Whatisevenmoreimportantisthatastheearthcooleddown，waterbegantoappearonitssurface.(P26L13)［句式分析］句中what引导的是一个__________，what做从句主语，that引导的是一个_________，as引导的是一个_________________。时间状语从句主语从句表语从句•WaterhadalsoappearedonotherplanetslikeMarsbut,unliketheearth,ithaddisappearedlater.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.•在火星这些其他行星上都出现了水，但和地球不同的是，这些水后来都消失了。水会对生命的发展起关键作用，这一点在当时并不明显。•befundamentalto对...是重要的•It是形式主语，真正的主语是thatwaterwastobefundamentaltothedevelopmentoflife.•Itis/was(not)obviousthat.......是（不）明显的，如:Itisnowonderthathehaspassedtheexam.•Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.很多科学家相信，由于地球表面上长期有水存在，它使得地球得以把有害气体和酸性物质溶解在海洋里。这就产生了一系列的反应，使得生命就有可能开始发展了。•thecontinuedpresenceofwater水的长期存在allowvt.允许、许可、容许allowdoing允许做某事allowsb.todo允许某人做某事beallowedtodo被允许做某事主语从句that引导表语从句continued持续不断的连锁反应which引导定语从句beharmfulto对…有害doharmtosb.=dosb.harm伤害某人，对某人有害处1)Pollutionisespeciallyharmfultoanimals.2)Smokingwilldoyoualotofharm.Stage1:Thedevelopmentoftheearth(1)AftertheBigBang,whatwastheearthlike?acloudofdustasolidglobeexplodedwithfireandrockproducedwatervapourandgases(2)Whathappenednext?(3)Whatdidthewatervapourandgasesform?theearth’satmosphereWaterappeared(4)Whatappearedastheearthcooleddown?waterisimportantforthebeginningoflifeontheearth.Whyiswatersoimportantforthebeginningoflife?Becausewaterallowedtheearthtodissolveharmfulgasesintooceansandseas.•Manymillionsofyearslater,thefirstextremelysmallplantsbegantoappearonthesurfaceofthewater.Theymultipliedandfilledtheoceansandseaswithoxygen,whichencouragedthelaterdevelopmentofearlyshe