Unit4-Astronomy-the-science-of-the-stars-Language-points课件3(新人教版必修三)

人教课标版高一必修3

Unit4英语课件Languagepoints展示同学：要求板书规范工整，动作迅速；发言声音洪亮，表达清楚。点评同学：由每组A层同学点评。要求声音洪亮，表达清楚，语速适中，并对于不足之处及时补充。其他同学：学会倾听，整理、完善答案，能够大胆质疑。预习案一1.Itwasalmostmidnightthatafirebrokeout

intheneighborhood.2.Nowthat

youarehere,whynothaveadrink?3.---Didyoucatchyourplane?---Yes,wegottherejustintime.4.Astimegoesby,everythingwillbeOK.5.Thewomanfinallygavebirthtoaboyaftersufferingsomuchpain.6.Innearfuture,itwillnotbeonlyadreamforhumantomakeatrip

intospace.7.Thedishtastesgoodafteritcoolsdown.8.---Willyougofishingthisafternoon?---Well,italldependsontheweather.9.AfterawhileIgotthehangofitandwebegantoenjoyourselves.10.Thecrowdcheeredupwhentheysawtheteamsarrive.展示同学：要求板书规范工整，动作迅速；发言声音洪亮，表达清楚。点评同学：由每组A层同学点评。要求声音洪亮，表达清楚，语速适中，并对于不足之处及时补充。其他同学：学会倾听，整理、完善答案，能够大胆质疑。探究点一PhrasesandUsefulExpressionscirclearound绕…转accordingto…根据

awidelyacceptedtheory熟知的理论inalldirections向着四面八方

intime及时；终于cooldown冷却befundamentalto…对…关键achainreaction连锁反应

…makeitpossiblefor…todo…使…可能11.(除...之外)也，又12.成长为，渐成，变为13.下蛋14.产生，分娩15.轮到某人，接着16.阻止…17.逃离，漏出18.作为...的结果，由于aswellasgrowintolayeggsgivebirthtoinone’sturnprevent…fromescapefromasaresultofmillionsofyearstocome未来的几百万年dependon依靠,依赖1.Nooneknowsexactly

howtheearthbegan,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.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.[考点]what引导的主语从句，第一句what在从句中作become的宾语，第二句what在从句中作主语。[考例1]_____wasmostimportanttoher,shetoldme,washerfamily.（山东2008）A.It B.This C.What D.As[点拨]选B。what引导主语从句，并在从句中作主语。若选it则应去掉第二个is；as引导定语从句，若选as则应去掉isthat。[考例2]______isknowntousallisthatthe2008OlympicGameswilltakeplaceinBeijing.（福建2008）A.It B.WhatC.As D.Which[点拨]what引导主语从句并且在从句中作sayanddo的宾语。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.Theearthbecomesoviolentthat

itwasnotclearwhethertheshapewouldlastornot.导学案P105--25.Theywereintimetoproducethewater...

intime:soonerorlater;eventually;I’llseehimintime.

intime(forsth./todosth.):notlateShewillbebackintimetopreparedinner.(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!6.…astheearthcooleddown,waterbegantoappearonitssurface.导学案P106--3

随着地球的冷却,地球的表面就开始出现了水。1)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.cooldowncooleddown2)appear“出现,似乎”是不及物动词当表示“似乎,好像”时是系动词,该词无被动语态。OurteacherappearedonTVthismorning.I.含义上的差异

appear是指根据事物的外表表象做出判断的,但实质上并不一定如此;seem是表示说话人主观上的判断,暗含有一定的根据,往往接近事实的判断;look是根据视觉印象而得出的判断,实质上也可能如此。Sheisfiftybutsheappearsyoung.她五十岁了,但看起来很年轻。(其实并非如此)Sheseemsyoung.她看起来很年轻。(根据个人的主观判断而推断出)Shelooksyoung.她很年轻。(从她外表可以感觉出)7.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.8.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.Chainreaction连锁反应Makeitpossibleforlifetodevelop.

使生命的发展成为可能

makeit+adj./n.sb./sth.todosth.导学案P106--4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________________________________________________.makeitpossibleforustoworktogethermadeiteasyforthemtounderstandthequestion9.Theyproducedyounggenerallybylayingeggs.lay-laid-laid-laying放,把......放在......;产卵Helaidhisbooksonthedesk.注意:

lay(laid;laid;laying)放置;产卵lie(lay;lain;lying)躺;位于lie(lied;lied;lying)说谎Thenaughtyboy___tomethatthehenthat___therejustnowhad___twoeggsthedaybefore.A.laid;laid;laidB.laid;lay;lainC.lied;laid;lainD.lied;lay;laidD10.…theygavebirthtoyoungbabyanimals1)生（孩子）

She’sjustgivenbirthtoahealthybabygirl.她刚刚生了个健康的女婴。

2)产生Theextraordinaryexperiencegavebirthtohislatestnovel.这段奇特的经历促成了他的最新的一部小说的诞生。11.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.他们把太多的二氧化碳释放到大气层中,这就是使得热量不能从地球上散发到太空中去。阅读下列句子,注意prevent...from的意思和用法。1.Therewasnothingtopreventherfromdoingso.2.Wemustpreventthewaterfrombeingpolluted.3.Theemperororderedhisporterstopreventthespeakerenteringthebuilding.[归纳]prevent...from的意思是____________________________。from后多跟动词-ing形式(句1、句2)；有时可省略from(句3)。[拓展]

近义短语有:stop...from阻止……干某事;keep...from阻止……干某事。注意:prevent和stop后的from都可以省略,而keep...from中的from则不能省略，如果省略了,其意义将发生改变。制止、阻止、使……不做某事1).Noonecanpreventtheplans___out.A.tobecarriedB.fromcarrying C.nottocarryD.frombeingcarried2).Theytriedtopreventtheplanefrom___ontherunway.A.land B.landing C.toland D.beinglanded12.…theearthmaybecometoohottoliveon.地球可能会因此变得太热而不适合生物的生存。有关too的一些用法too作“太”讲。Thereistoomuchwater.水太多了。Thisshirtistoolargeforme.这衬衫我穿起来太大。Theproblemisrathertoohardforme.这个问题对我来说太难了。2)当“too＋adj.(形容词)＋inf.(动词不定式)”时,有两种不同的意义,一种为“太……以至(不)……”,在翻译时要加上一个否定词;另一种是“太……”,语意肯定,但too后的形容词常用ready,heavy,beautiful等。Thequestionistoohardtounderstand.问题太难,理解不了。Heistooproudtoseehisownshortcomings.他太骄傲了以至于看不到自己的缺点。Youaretooreadytofindfaultwithothers.你太爱挑别人的毛病了。3)当“only/all/not/but＋too＋adj.(形容词)＋inf.(动词不定式)”时,后面的动词不定式在翻译时不必加否定词。only等与too连用等于very(非常)。Ishallbeonlytoopleasedtohearfromyoufurther.我非常欢迎你再来信。Theyarebuttoogladtodoso.他们非常喜欢这么做。Weareonlytoopleasedtoworktogetherwiththeworkers.我们和工人们一起劳动,非常高兴。4)在“cannot／cannever...too”结构中，应理解为“无论怎样……也不会过分”。Youcannotpraisehimtoohighly.你无论怎样表扬他也不过分。Wecannotbetoocarefulindoingexperiments.我们做实验无论怎样小心也不过分。Youcanneverbetoocarefulofyourhealth.你越注意健康越好。----Areyougoingtothefootballgame?----No.Theticketsare__expensiveforme.A.verymuchB.fartooC.highlyD.somuch解析:too+形容词+forsb.表示 “太……”,far可置于too前表示 程度。B13.…whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.在未来的千百万年中,生命能否在地球一延续将取决于这个问题能否得到解决。dependvi.相信,信赖;依靠,依赖(尤指钱);视……而定①YoucandependonJohn—heisalwaysontime.你可以相信约翰,他总是很准时。相关短语：believesb.相信某人（所说的话）believeinsb.信任/信赖某人trust(in)sb.相信/信任/信赖某人dependoncountonsb.relyon信任/相信/依赖/依靠某人Tellhimwhatyouwanttosay;he’samanto__.A.countB.believeC.trustD.depend解析:相信/信赖某人:counton sb./believeinsb./dependon sb./trust(in)sb.CI.根据下列各句句意及所给单词的首字母或汉语提示，写出该单词的正确形式。1.This_____(理论)helpstoexplainhowanimalscommunicatewitheachother.2.Thefinalcostcouldbeasmuchasoneb_____dollars.3.31peoplehavebeeninjuredin_____(暴力的)incidentsthroughouttheday.练习坊theorybillionviolent4.Acrosstheg_____,sealevelvariesbyhundredsoffeet.5.A(n)_____(原子)issosmallthatwecannotseeit.6.Smokingish______tohealth,butsomepeoplecannotgetridofit.7.Thebestwaytogetthat_____________(二氧化碳)intotheatmosphereistowarmtheentireplanet.globeatomharmful

carbondioxide8.Thenewownershavetriedtogivetherestaurantamorefamily-friendly__________(气氛).9.O_____isakindofgasthatisnecessaryformostanimalsandplantstolive.10.Iwassurprisedbythe_________(出席)ofsomanypeopleatthemeeting.atmosphereOxygenpresenceII.用括号中所给单词的适当形式填空。1.Theshiprocked_________(violent)fromsidetoside,causingmanypassengerstofeelseasick.2.Thereisa___________(fundament)differenceinattitudebetweenthesetwopoliticians.3.Itisgenerallyacceptedthatsmokingis_______(harm)toourhealth.violentlyfundamentalharmful4.Ourproblemshave_________(multiply)sincelastyear.5.Scientistswanttoknowwhetherlife______(exist)onotherplanets.6.Shelistenedwitha_______(puzzle)expressiononherface.multipliedexistspuzzledIII.用适当的介词填空。1.According___ourrecords,thebooksyouhaveborrowedshouldnowbereturnedtothelibrary.2.Tobegin_____,weoughttoknowwhatwearestudyingfor.3.Whenthefirebrokeoutinthemovietheater,peoplelosttheirheadsandran___alldirections.towithin4.Thecarcametoastopjust___timetopreventanaccident.5.Heusuallycomestoschoolearly.It’svery______himtobesolatetoday.6.Aknowledgeofphysicsisfundamental___anyunderstandingofthisproblem.7.Thesmellofrainandwetnesswaseverywhere.Itseemedtofillme_____energy.inunliketowith8.Whenyouareyoung,youdreamaboutallsorts___things.9.Hegrowsnotonlyvegetablesbutalsoflowersinhisgarden;that