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Unit4ReadingHowlifebeganontheearth?Pleaseretellthepassageaccordingtothepictures.RevisionBigBangAcloudofdustAtmosphereTheearthAsolidballwaterwaterPlantsinthewaterShellfishandfishPlantsonlandInsectsandamphibiansReptilesDinosaursMammalshumanscameintobeingandspreadallovertheworld.LanguagepointsUnit41.Nooneknowsexactlyhowtheearthbegan,asithappenedsolongago.——————————————————Nooneseeswhathe’ssaying,asitistoohard.仿写：没人明白他在说什么，因为那太难理解了。2.However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.beginwith=startwith：“以……开始”.1)tobeginwith=tostartwith以…为起点;开始(做)这两个词组都可以单独使用,表示“首先;第一;起初;最初”.在句中作时间状语.e.g.Tobegin/startwith,Icouldn’tlikehimatall.起初,我一句也没弄明白.3.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.1._________________（使大家吃惊的是）isthathedidn’tcometothemeeting.Whatsurprisedeverybody2.___________（他所做的addedtoourdifficulty.Whathedid仿写:李老师明天将去北京，直到那时才能知道谁将代替她给我们上课。________________________________________________________________________________WhowillgiveuslessonsinplaceofMissLiisn’tknownuntiltomorrowwhenshewillgotoBeijing.4.Theearthbecamesoviolentthatitwasnotclearwhetherthesolidshapewouldlastornot.问题是地球开始变得激烈动荡，不知道这个固体形状是否会继续下去。n.固体(solid,liquid,gas)adj.固体的,实心的,无空隙的；结实的,Solid:2)violent猛烈的，激烈的violencen.暴力3)lastv.持续好天气只会持续几天Thefineweatheronlylastedforafewday友谊长存Friendshiplastsforever.5.Itexplodedloudlywithfireandrock,whichwereintimetoproducecarbon,nitrogen,watervapourandothergases,whichwerewomaketheearth’satmosphere.1).（使某物）炸开，爆炸2).（指感情）迸发搭配：3).（指人口）突然或迅速增加eg:Thefireworkexplodedinhishandandhewashurtseriously.eg:Thechildrenexplodedintolaughter.eg:Theteacherexplodedwithanger.explosionn.爆炸（声）explosiveadj.爆炸性的，易爆炸的explodewith/in/into...eg:Nowitisnoteasytofindjobswiththeexplodingworldpopulation.(sth)beto(do):1.不可避免要发生或必须发生。Sheistobehonouredforthisgreatwork.2表示按计划、安排要发生的动作Whenaretheytohandintheirplan？3表命令Tellhersheisnottobebacklate!intime:soonerorlater;eventually迟早;最终我迟早会遇见他.I’llseehimintime.intime(forsth./todosth.):notlate及时；不迟她会及时回来准备晚餐.Shewillbebackintimetopreparedinner.你认为我们能及时赶上火车吗?Doyouthinkwecangetthere_________thetrain?intimeforexercise:与time相关的短语:ontime按时;准时innotime立刻,马上attimes有时atatime每次;依次onceuponatime从前atonetime从前forthetimebeing暂时fromtimetotime不时地cooldown变凉,冷却,平息，冷静晒了一天的太阳之后,他喜欢在海水中凉快一下.Afteradayinthesun,helikedto________inthesea.他的话平息了她的怒气.Hiswords_____________heranger.cooleddowncooldown6.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.随着地球的冷却,地球的表面就开始出现了水。7.WaterhadalsoappearedonotherplanetslikeMarsbut,unliketheearth,ithaddisappearedlater.仿写：他们尽了最大的努力，但让他们失望的是他们没有赢得那场比赛。___________________________________Theytriedtheirbestbut,totheirdisappointment,theydidn’twinthegame.8.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.水会对于生命的发展起关键作用,这一点在当时并不太明显.本句体现的是名词性从句在句中作主语的作用,虽然是以It开头,可是It只起到形式主语的作用,真正的主语是thatwaterwastobefundamentaltothedevelopmentoflife.用It做形式主语是因为that引导的从句较长,如果按照正常语序来安排的话就显得头重脚轻了.如:Itisnowonderthathehaspassedtheexam.ItisquitenecessaryforustolearnEnglishwell.1)allow…to…=permit…todo…2)harmfuladj.Opp:harmlessharmn./v.beharmfultosb./sth.=doharmtosb./sth.=dosb/sthharm对…有害过多的二氧化碳对环境有害.Toomuchcarbondioxideisharmfulto/doesharmtotheenvironment.9.Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.10.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.1)Chainreaction连锁反应2)Makeitpossibleforlifetodevelop.使生命的发展成为可能makeit+adj./n.sb./sth.todosth.组长让我们可以一起合作.Thegroupleader_____________________老师让他们跟容易地明白那个问题.Theteacher_________________________________.makeitpossibleforustoworktogether.madeiteasyforthemtounderstandthequestion1)multiplyv.乘:增加,繁殖；7乘以4等于28.4multipliedby7istwenty-eight.我们的功课自上以来增多了.Ourhomeworkhavemultipliedsincewecametohighschool.蚊子在夏天繁殖得很快.Mosquitoesmultiplyrapidlyinsummer.11.Theymultipliedandfilledtheoceansandseaswithoxygen,whichencouraged…=4and7multiplytomake28.=Multiply7by4tomake28.allsortsof=allkindsof各种各样的12.…whichencouragedthelaterdevelopmentofearlyshellfishandallsortsoffish.13.Others,calledamphibians,wereabletoliveonlandaswellasinthewater.另外一些叫作两栖动物,它们既能在陆地上生活也能在水里生存.aswellas表示“(除….之外)也;既……又”.如:I’mlearningFrenchaswellasEnglish.我学英语之外还学法语.Hegrowsflowersaswellasvegetables.他既种菜也种花.“就远原则”：HeaswellasI______rockmusic.likes14.Theyproducedyounggenerallybylayingeggs.It’sgenerallybelievedthat…一般认为…generallyspeaking一般而言，概括来说1)It’sgenerallybelievedthatgirlsworkharderthanboysdo.2)Generallyspeaking,womencrymoreeasilythanmen.15.Theyproducedyounggenerallybylayingeggs.它们一般是通过孵蛋而繁衍后代的.lie,lie,lay的区别如下:动词原形第三人称单数过去式过去分词现在分词中文释义lieliesliedliedlying撒谎;谎话lielieslaylainlying躺;位于laylayslaidlaidlaying放置;下蛋16.Theylaideggstooandexistedontheearthformorethan140millionyears.existin存在与…之中existon靠…为生existby靠…生存Itwasimpossibleforthemto________suchasmallincome.Theuniverse_________space.existonexistsinThewildman__________huntingwildanimalintheforest.existedbyinexistence现存的comeintoexistence=comeintobeing开始