2023学年完整版Unit4Astronomythescienceofthestars备课资料5

Unit4Astronomythescienceofthestars备课资料Period2知识讲练课学习目标theusagesofsuchimportantwordsandexpressionsas:exist,puzzle,intime,inone’sturn,prevent...from,cheerup,breakout,watchout;learntoexpressyourselfbyusingthem.themethodofconstructingknowledgetreesthroughself-studyandcooperativeexploration.thefunofexpressingyourselfbyusingEnglishandparticipateinclasswithastrongpassion.课堂探究一、词汇精粹学习建议:根据所列例句,理解并尝试总结下列词汇的用法。vi.存在;生存【教材原句】Theylaideggstooandexistedontheearthformorethan140millionyears.它们也生蛋,在地球上生存了一亿四千多万年。【观察思考】(1)Fishcan’texistoutofwater.鱼离开了水无法生存。(2)Doyoubelievetheexistenceofghosts?Perhapstheyonlyexistinsomepeople’simagination.你相信鬼魂的存在吗?或许他们只存在于一些人的想象里。(3)Thehostages(人质)existedonbreadandwater.人质靠水和面包生存。(4)ThereexistmanyancienttemplesofthiskindontheshoresoftheMediterranean.在地中海沿岸地带,有许多这样的古庙。(5)Astimewenton,thesmalltowncameintoexistence.随着时间的流逝,这个小城镇形成了。existvi.存在;生存(1)存在于……(2)靠……为生(3)某地存在……(4)开始存在;成立n.谜;难题vt.&vi.(使)迷惑;(使)为难【教材原句】Howlifebeganonearthisoneofthebiggestpuzzlesthatscientistsfoundhardtosolve.地球上的生命是如何起源的是科学家们最难以解答的问题之一。【观察思考】(1)Whatpuzzlesmewaswhytheydidn’ttakeheradvice.使我大惑不解的是他们为什么没有接受她的建议。(2)Theypuzzledoverthequestionforquiteawhile.这问题他们苦苦思索了很久。(3)Thepresentsituationispuzzling,andweareallpuzzledaboutwhatwillhappeninthedaystocome.目前的形势令人困惑,我们都对未来几天将会发生什么感到困惑。(1)puzzleover(2)对……迷惑不解(3)puzzlingadj.(4)puzzledadj.二、短语集锦time及时;终于【教材原句】Theywereintimetoproducecarbondioxide,nitrogen,watervapourandothergases,whichweretomaketheearth’satmosphere.它们最终产生了碳、氮气、水蒸气和其他多种气体,从而形成了地球的大气层。【观察思考】(1)Youareluckytobeintimeforourparty.你很幸运能及时参加我们的聚会。(2)Hemadeitintimewhenhefailedthousandsoftimes.当失败了成千上万次后,他终于成功了。【联系拓展】(1)Hecouldnotcomeontimebecauseofthetrafficjam.因为交通堵塞,他不能准时(按时)到了。(2)Atnotimeshouldwegiveintodifficulties.我们在任何时候都不能向困难屈服。(3)Thebuswasfilledwithstudentsinnotime.这辆公共汽车很快就被学生挤满了。(1)intime(2)按时;准时(3)立即;马上(4)从不;绝不one’sturn轮到某人;接着【教材原句】Thustheyhave,intheirturn,becomethemostimportantanimalsontheplanet.于是,它们接着成为了这个行星上最重要的动物。【观察思考】NowthatIhavefinishedbuying,Tom,inhisturn,shouldcook.既然我已经完成了采购,就该轮到汤姆来做饭了。【联系拓展】(1)Weprotecttheenvironmentandinturnitbenefitsusalot.我们保护环境,反过来保护环境会使我们受益匪浅。(2)Thechildrencalledouttheirnamesinturn.孩子们依次自报姓名。(3)Wetookturnstodrivethecarontheway.在路上我们轮流开车。(4)Itisyourturntodotheexperiment.轮到你做实验了。(1)反过来,转而;依次;轮流;逐个(2)轮流做……(3)轮到某人做某事...from...阻止;制止【教材原句】Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatformescapingfromtheearthintospace.他们把过多的二氧化碳释放到大气层中,这使得地球上的热不能释放到太空中去。【观察思考】Hesaidthiswouldpreventcompaniesfromcreatingnewjobs.他说这将阻止各公司创造新的职位。【联系拓展】(1)WeshouldtryourbesttostoptheWestLake(from)beingpolluted.我们应该尽力阻止西湖被污染。(2)We’llbeprevented/stopped/keptfromfinishingourexperimentalprogramme.我们将被阻止完成实验性项目。阻止……干某事:(1)(2)(3)up感到高兴;感到振奋;使高兴起来【教材原句】Icheeredupimmediatelyandfloatedweightlesslyaroundinourspaceshipcabinwatchingtheearthbecomesmallerandthemoonlarger.我立刻感到很高兴,由于失重我在太空舱里飘来飘去,我望着(身后的)地球越来越小,而(前方的)月球越来越大。【观察思考】(1)Cheerup!Ourtroubleswillbeoversoon.振作起来!我们的困难很快就会过去。(2)WhenI’mfeelingsadmymothertellsmefunnystoriestocheermeup.当我感到忧伤时,我的母亲就会给我讲有趣的故事让我高兴起来。【联系拓展】Wedidourbesttocheerhimonwhenhewasabouttogiveup.当他将要放弃时我们尽力鼓励他。(1)(使)感到高兴;(使)感到振奋(2)(赛跑比赛中)以喝彩声鼓励某人;为某人加油(3)cheerfuladj.out(火灾,战争,疾病)突发,爆发【教材原句】Wewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth’sgravityincreased.我们惊奇地看着,随着地球的引力增加,宇宙飞船的外层燃烧起火。【观察思考】Hewas29whenthewarbrokeout.战争爆发时他29岁。【辨析】breakout/takeplace/happen意为“发生、爆发”,常指战争、灾难、疾病或者争吵等事件的发生,也可以表示突然大声叫喊等。指某事按照计划进行或者按照计划发生,此外还有“举行”之意。一般用于偶然或突发性事件。(1)ThepartywilltakeplaceonSunday,rainorshine.不管下雨还是阳光明媚,聚会将在周日举行。(2)Theplanecrashhappenedonlyminutesaftertake-off.飞机起飞几分钟后就坠毁了。【联系拓展】逃脱;脱离出故障;垮掉强行进入;打断强行闯入;突然开始断开;中断;停顿突破;冲破破碎;解散;分手(1)Theybrokeawayfromthenationalunionandsetuptheirownorganization.他们脱离了总工会建立了他们自己的组织。(2)Theprintingmachinesarealwaysbreakingdown.这些打印机总是出故障。(3)Thievesbrokeinandstolethecomputerequipment.小偷破门而入盗走了电脑设备。(4)Herhousewasbrokenintolastweek.上周有人闯入了她的家。(5)Ibrokeofftheconversationandansweredthephone.我中断了谈话去接听电话。(6)Thesunsoonbrokethroughthemist.太阳很快就突破了云雾的包围。(7)Helosthisjobandhismarriagebrokeup.他失业了并且婚姻破碎了。out密切注意;当心;提防【教材原句】You’llbecheatedifyoudon’twatchout.如果你不小心,就会上当受骗。【观察思考】(1)Watchout!Themilkisboilingover.小心点儿,牛奶沸腾溢出来了。(2)Watchoutforanysignofunhappinessinyourself.一定要密切关注你自身出现的不高兴的迹象。【联系拓展】Theremusthavebeenanangelwatchingovermethatday.那天一定有天使在帮我。(1)密切注视;当心;提防(2)留意(3)照顾;监督;保护课堂练习can’tbeexistedwithoutwater.(改错)’llbepreventedfinishingourexperimentalprogramme.(改错)watched,amazedasfirewasbrokenoutontheoutsideofthespaceship.(改错)presentsituationis(令人困惑的),andweareall(感到困惑)tecttheenvironmentand(反过来)itbenefitsusalot.6.(密切关注)anysignofunhappinessinyourself.课后提升挑战一小试牛刀willsucceedintimeaslongasyoudon’tgiveup.(translation)2.我们要尽最大的努力阻止河流被污染。3.警告乘客当心小偷。4.用break的相关短语填空(1)Hemyhouseandstolemymoney.(2)Onceyoujointhem,youcanneverfromthem.(3)Ifyougoonworkinglikethis,youwillsoonerorlater.(4)Pleasedon’tonourconversation.(5)TheSecondWorldWarinSeptember1939.(6)Scientistssaythey’rebeginningtointhefightagainstcancer.(7)Theirmarriageis.suggestthattheyprovideaneffectivewarningsystemtomanyofthedisasters.;breakingout;fromhappening;frombeinghappened;fromtakingplace6.—I’mthinkingofthetest’mafraidIcan’tpassthistime.—!I’msureyouwillmakeit.ahead upproblem uptrytoavoidpublictransportdelaysbyusingtheirowncars,andthiscreatesfurtherproblems.case returnturn turnsthesituation,thesalesmanagerlooked.;puzzled;puzzling;puzzling;puzzled挑战二走进生活假设你到太空旅游,请你用本节课所学的知识描述你的太空之旅。课后作业whatwehavelearnedtoday.sentencesbyusingeachwordorphrase.参考答案课堂探究一、词汇精粹1.【归纳总结】(1)existin(2)existon(3)thereexist(s)...(4)comeintoexistence2.【归纳总结】(1)