2023學(xué)年完整版Unit4Astronomythescienceofthestars備課資料5

Unit4Astronomythescienceofthestars備課資料Period2知識講練課學(xué)習(xí)目標(biāo)theusagesofsuchimportantwordsandexpressionsas:exist,puzzle,intime,inone’sturn,prevent...from,cheerup,breakout,watchout;learntoexpressyourselfbyusingthem.themethodofconstructingknowledgetreesthroughself-studyandcooperativeexploration.thefunofexpressingyourselfbyusingEnglishandparticipateinclasswithastrongpassion.課堂探究一、詞匯精粹學(xué)習(xí)建議:根據(jù)所列例句,理解并嘗試總結(jié)下列詞匯的用法。vi.存在;生存【教材原句】Theylaideggstooandexistedontheearthformorethan140millionyears.它們也生蛋,在地球上生存了一億四千多萬年。【觀察思考】(1)Fishcan’texistoutofwater.魚離開了水無法生存。(2)Doyoubelievetheexistenceofghosts?Perhapstheyonlyexistinsomepeople’simagination.你相信鬼魂的存在嗎?或許他們只存在于一些人的想象里。(3)Thehostages(人質(zhì))existedonbreadandwater.人質(zhì)靠水和面包生存。(4)ThereexistmanyancienttemplesofthiskindontheshoresoftheMediterranean.在地中海沿岸地帶,有許多這樣的古廟。(5)Astimewenton,thesmalltowncameintoexistence.隨著時(shí)間的流逝,這個(gè)小城鎮(zhèn)形成了。existvi.存在;生存(1)存在于……(2)靠……為生(3)某地存在……(4)開始存在;成立n.謎;難題vt.&vi.(使)迷惑;(使)為難【教材原句】Howlifebeganonearthisoneofthebiggestpuzzlesthatscientistsfoundhardtosolve.地球上的生命是如何起源的是科學(xué)家們最難以解答的問題之一?！居^察思考】(1)Whatpuzzlesmewaswhytheydidn’ttakeheradvice.使我大惑不解的是他們?yōu)槭裁礇]有接受她的建議。(2)Theypuzzledoverthequestionforquiteawhile.這問題他們苦苦思索了很久。(3)Thepresentsituationispuzzling,andweareallpuzzledaboutwhatwillhappeninthedaystocome.目前的形勢令人困惑,我們都對未來幾天將會發(fā)生什么感到困惑。(1)puzzleover(2)對……迷惑不解(3)puzzlingadj.(4)puzzledadj.二、短語集錦time及時(shí);終于【教材原句】Theywereintimetoproducecarbondioxide,nitrogen,watervapourandothergases,whichweretomaketheearth’satmosphere.它們最終產(chǎn)生了碳、氮?dú)狻⑺魵夂推渌喾N氣體,從而形成了地球的大氣層?！居^察思考】(1)Youareluckytobeintimeforourparty.你很幸運(yùn)能及時(shí)參加我們的聚會。(2)Hemadeitintimewhenhefailedthousandsoftimes.當(dāng)失敗了成千上萬次后,他終于成功了。【聯(lián)系拓展】(1)Hecouldnotcomeontimebecauseofthetrafficjam.因?yàn)榻煌ǘ氯?他不能準(zhǔn)時(shí)(按時(shí))到了。(2)Atnotimeshouldwegiveintodifficulties.我們在任何時(shí)候都不能向困難屈服。(3)Thebuswasfilledwithstudentsinnotime.這輛公共汽車很快就被學(xué)生擠滿了。(1)intime(2)按時(shí);準(zhǔn)時(shí)(3)立即;馬上(4)從不;絕不one’sturn輪到某人;接著【教材原句】Thustheyhave,intheirturn,becomethemostimportantanimalsontheplanet.于是,它們接著成為了這個(gè)行星上最重要的動物?！居^察思考】NowthatIhavefinishedbuying,Tom,inhisturn,shouldcook.既然我已經(jīng)完成了采購,就該輪到湯姆來做飯了?！韭?lián)系拓展】(1)Weprotecttheenvironmentandinturnitbenefitsusalot.我們保護(hù)環(huán)境,反過來保護(hù)環(huán)境會使我們受益匪淺。(2)Thechildrencalledouttheirnamesinturn.孩子們依次自報(bào)姓名。(3)Wetookturnstodrivethecarontheway.在路上我們輪流開車。(4)Itisyourturntodotheexperiment.輪到你做實(shí)驗(yàn)了。(1)反過來,轉(zhuǎn)而;依次;輪流;逐個(gè)(2)輪流做……(3)輪到某人做某事...from...阻止;制止【教材原句】Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatformescapingfromtheearthintospace.他們把過多的二氧化碳釋放到大氣層中,這使得地球上的熱不能釋放到太空中去?！居^察思考】Hesaidthiswouldpreventcompaniesfromcreatingnewjobs.他說這將阻止各公司創(chuàng)造新的職位。【聯(lián)系拓展】(1)WeshouldtryourbesttostoptheWestLake(from)beingpolluted.我們應(yīng)該盡力阻止西湖被污染。(2)We’llbeprevented/stopped/keptfromfinishingourexperimentalprogramme.我們將被阻止完成實(shí)驗(yàn)性項(xiàng)目。阻止……干某事:(1)(2)(3)up感到高興;感到振奮;使高興起來【教材原句】Icheeredupimmediatelyandfloatedweightlesslyaroundinourspaceshipcabinwatchingtheearthbecomesmallerandthemoonlarger.我立刻感到很高興,由于失重我在太空艙里飄來飄去,我望著(身后的)地球越來越小,而(前方的)月球越來越大?！居^察思考】(1)Cheerup!Ourtroubleswillbeoversoon.振作起來!我們的困難很快就會過去。(2)WhenI’mfeelingsadmymothertellsmefunnystoriestocheermeup.當(dāng)我感到憂傷時(shí),我的母親就會給我講有趣的故事讓我高興起來?！韭?lián)系拓展】Wedidourbesttocheerhimonwhenhewasabouttogiveup.當(dāng)他將要放棄時(shí)我們盡力鼓勵他。(1)(使)感到高興;(使)感到振奮(2)(賽跑比賽中)以喝彩聲鼓勵某人;為某人加油(3)cheerfuladj.out(火災(zāi),戰(zhàn)爭,疾病)突發(fā),爆發(fā)【教材原句】Wewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth’sgravityincreased.我們驚奇地看著,隨著地球的引力增加,宇宙飛船的外層燃燒起火?！居^察思考】Hewas29whenthewarbrokeout.戰(zhàn)爭爆發(fā)時(shí)他29歲?！颈嫖觥縝reakout/takeplace/happen意為“發(fā)生、爆發(fā)”,常指戰(zhàn)爭、災(zāi)難、疾病或者爭吵等事件的發(fā)生,也可以表示突然大聲叫喊等。指某事按照計(jì)劃進(jìn)行或者按照計(jì)劃發(fā)生,此外還有“舉行”之意。一般用于偶然或突發(fā)性事件。(1)ThepartywilltakeplaceonSunday,rainorshine.不管下雨還是陽光明媚,聚會將在周日舉行。(2)Theplanecrashhappenedonlyminutesaftertake-off.飛機(jī)起飛幾分鐘后就墜毀了?！韭?lián)系拓展】逃脫;脫離出故障;垮掉強(qiáng)行進(jìn)入;打斷強(qiáng)行闖入;突然開始斷開;中斷;停頓突破;沖破破碎;解散;分手(1)Theybrokeawayfromthenationalunionandsetuptheirownorganization.他們脫離了總工會建立了他們自己的組織。(2)Theprintingmachinesarealwaysbreakingdown.這些打印機(jī)總是出故障。(3)Thievesbrokeinandstolethecomputerequipment.小偷破門而入盜走了電腦設(shè)備。(4)Herhousewasbrokenintolastweek.上周有人闖入了她的家。(5)Ibrokeofftheconversationandansweredthephone.我中斷了談話去接聽電話。(6)Thesunsoonbrokethroughthemist.太陽很快就突破了云霧的包圍。(7)Helosthisjobandhismarriagebrokeup.他失業(yè)了并且婚姻破碎了。out密切注意;當(dāng)心;提防【教材原句】You’llbecheatedifyoudon’twatchout.如果你不小心,就會上當(dāng)受騙。【觀察思考】(1)Watchout!Themilkisboilingover.小心點(diǎn)兒,牛奶沸騰溢出來了。(2)Watchoutforanysignofunhappinessinyourself.一定要密切關(guān)注你自身出現(xiàn)的不高興的跡象?！韭?lián)系拓展】Theremusthavebeenanangelwatchingovermethatday.那天一定有天使在幫我。(1)密切注視;當(dāng)心;提防(2)留意(3)照顧;監(jiān)督;保護(hù)課堂練習(xí)can’tbeexistedwithoutwater.(改錯(cuò))’llbepreventedfinishingourexperimentalprogramme.(改錯(cuò))watched,amazedasfirewasbrokenoutontheoutsideofthespaceship.(改錯(cuò))presentsituationis(令人困惑的),andweareall(感到困惑)tecttheenvironmentand(反過來)itbenefitsusalot.6.(密切關(guān)注)anysignofunhappinessinyourself.課后提升挑戰(zhàn)一小試牛刀willsucceedintimeaslongasyoudon’tgiveup.(translation)2.我們要盡最大的努力阻止河流被污染。3.警告乘客當(dāng)心小偷。4.用break的相關(guān)短語填空(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挑戰(zhàn)二走進(jìn)生活假設(shè)你到太空旅游,請你用本節(jié)課所學(xué)的知識描述你的太空之旅。課后作業(yè)whatwehavelearnedtoday.sentencesbyusingeachwordorphrase.參考答案課堂探究一、詞匯精粹1.【歸納總結(jié)】(1)existin(2)existon(3)thereexist(s)...(4)comeintoexistence2.【歸納總結(jié)】(1)