人教課標版高一必修3

Unit4英語課件Languagepoints展示同學：要求板書規范工整，動作迅速；發言聲音洪亮，表達清楚。點評同學：由每組A層同學點評。要求聲音洪亮，表達清楚，語速適中，并對于不足之處及時補充。其他同學：學會傾聽，整理、完善答案，能夠大膽質疑。預習案一1.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.展示同學：要求板書規范工整，動作迅速；發言聲音洪亮，表達清楚。點評同學：由每組A層同學點評。要求聲音洪亮，表達清楚，語速適中，并對于不足之處及時補充。其他同學：學會傾聽，整理、完善答案，能夠大膽質疑。探究點一PhrasesandUsefulExpressionscirclearound繞…轉accordingto…根據

awidelyacceptedtheory熟知的理論inalldirections向著四面八方

intime及時；終于cooldown冷卻befundamentalto…對…關鍵achainreaction連鎖反應

…makeitpossiblefor…todo…使…可能11.(除...之外)也，又12.成長為，漸成，變為13.下蛋14.產生，分娩15.輪到某人，接著16.阻止…17.逃離，漏出18.作為...的結果，由于aswellasgrowintolayeggsgivebirthtoinone’sturnprevent…fromescapefromasaresultofmillionsofyearstocome未來的幾百萬年dependon依靠,依賴1.Nooneknowsexactly

howtheearthbegan,asithappenedsolongago.Nooneseeswhathe’ssaying,asitistoohard.

仿寫：沒人明白他在說什么，因為那太難理解了。2.However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.

beginwith=startwith：“以……開始”.1)tobeginwith=tostartwith以…為起點;開始(做)這兩個詞組都可以單獨使用,表示“首先;第一;起初;最初”。在句中作時間狀語。e.g.Tobegin/startwith,Icouldn’tlikehimatall.起初,我一句也沒弄明白。3.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.[考點]what引導的主語從句，第一句what在從句中作become的賓語，第二句what在從句中作主語。[考例1]_____wasmostimportanttoher,shetoldme,washerfamily.（山東2008）A.It B.This C.What D.As[點撥]選B。what引導主語從句，并在從句中作主語。若選it則應去掉第二個is；as引導定語從句，若選as則應去掉isthat。[考例2]______isknowntousallisthatthe2008OlympicGameswilltakeplaceinBeijing.（福建2008）A.It B.WhatC.As D.Which[點撥]what引導主語從句并且在從句中作sayanddo的賓語。1.______________________（使大家吃驚的是）isthathedidn’tcometothemeeting.Whatsurprisedeverybody2.___________（他所做的）addedtoourdifficulty.Whathedid仿寫:李老師明天將去北京，直到那時才能知道誰將代替她給我們上課。___________________________________________________________________________WhowillgiveuslessonsinplaceofMissLiisn’tknownuntiltomorrowwhenshewillgotoBeijing.4.Theearthbecomesoviolentthat

itwasnotclearwhethertheshapewouldlastornot.導學案P105--25.Theywereintimetoproducethewater...

intime:soonerorlater;eventually;I’llseehimintime.

intime(forsth./todosth.):notlateShewillbebackintimetopreparedinner.(sth)beto(do):

1.不可避免要發生或必須發生。Sheistobehonouredforthisgreatwork.2.表示按計劃、安排要發生的動作Whenaretheytohandintheirplan?3.表命令Tellhersheisnottobebacklate!6.…astheearthcooleddown,waterbegantoappearonitssurface.導學案P106--3

隨著地球的冷卻,地球的表面就開始出現了水。1)cooldown變涼,冷卻,平息,冷靜曬了一天的太陽之后,他喜歡在海水中涼快一下。Afteradayinthesun,helikedto__________inthesea.他的話平息了她的怒氣。Hiswords_____________heranger.cooldowncooleddown2)appear“出現,似乎”是不及物動詞當表示“似乎,好像”時是系動詞,該詞無被動語態。OurteacherappearedonTVthismorning.I.含義上的差異

appear是指根據事物的外表表象做出判斷的,但實質上并不一定如此;seem是表示說話人主觀上的判斷,暗含有一定的根據,往往接近事實的判斷;look是根據視覺印象而得出的判斷,實質上也可能如此。Sheisfiftybutsheappearsyoung.她五十歲了,但看起來很年輕。(其實并非如此)Sheseemsyoung.她看起來很年輕。(根據個人的主觀判斷而推斷出)Shelooksyoung.她很年輕。(從她外表可以感覺出)7.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.水會對于生命的發展起關鍵作用,這一點在當時并不太明顯。

本句體現的是名詞性從句在句中作主語的作用,雖然是以It開頭,可是It只起到形式主語的作用,真正的主語是thatwaterwastobefundamentaltothedevelopmentoflife。用It做形式主語是因為that引導的從句較長,如果按照正常語序來安排的話就顯得頭重腳輕了。如:Itisnowonderthathehaspassedtheexam.ItisquitenecessaryforustolearnEnglishwell.8.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.Chainreaction連鎖反應Makeitpossibleforlifetodevelop.

使生命的發展成為可能

makeit+adj./n.sb./sth.todosth.導學案P106--4組長讓我們可以一起合作。Thegroupleader____________________________________.老師讓他們跟容易地明白那個問題。Theteacher________________________________________________.makeitpossibleforustoworktogethermadeiteasyforthemtounderstandthequestion9.Theyproducedyounggenerallybylayingeggs.lay-laid-laid-laying放,把......放在......;產卵Helaidhisbooksonthedesk.注意:

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

She’sjustgivenbirthtoahealthybabygirl.她剛剛生了個健康的女嬰。

2)產生Theextraordinaryexperiencegavebirthtohislatestnovel.這段奇特的經歷促成了他的最新的一部小說的誕生。11.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.他們把太多的二氧化碳釋放到大氣層中,這就是使得熱量不能從地球上散發到太空中去。閱讀下列句子,注意prevent...from的意思和用法。1.Therewasnothingtopreventherfromdoingso.2.Wemustpreventthewaterfrombeingpolluted.3.Theemperororderedhisporterstopreventthespeakerenteringthebuilding.[歸納]prevent...from的意思是____________________________。from后多跟動詞-ing形式(句1、句2)；有時可省略from(句3)。[拓展]

近義短語有: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則不能省略，如果省略了,其意義將發生改變。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.地球可能會因此變得太熱而不適合生物的生存。有關too的一些用法too作“太”講。Thereistoomuchwater.水太多了。Thisshirtistoolargeforme.這襯衫我穿起來太大。Theproblemisrathertoohardforme.這個問題對我來說太難了。2)當“too＋adj.(形容詞)＋inf.(動詞不定式)”時,有兩種不同的意義,一種為“太……以至(不)……”,在翻譯時要加上一個否定詞;另一種是“太……”,語意肯定,但too后的形容詞常用ready,heavy,beautiful等。Thequestionistoohardtounderstand.問題太難,理解不了。Heistooproudtoseehisownshortcomings.他太驕傲了以至于看不到自己的缺點。Youaretooreadytofindfaultwithothers.你太愛挑別人的毛病了。3)當“only/all/not/but＋too＋adj.(形容詞)＋inf.(動詞不定式)”時,后面的動詞不定式在翻譯時不必加否定詞。only等與too連用等于very(非常)。Ishallbeonlytoopleasedtohearfromyoufurther.我非常歡迎你再來信。Theyarebuttoogladtodoso.他們非常喜歡這么做。Weareonlytoopleasedtoworktogetherwiththeworkers.我們和工人們一起勞動,非常高興。4)在“cannot／cannever...too”結構中，應理解為“無論怎樣……也不會過分”。Youcannotpraisehimtoohighly.你無論怎樣表揚他也不過分。Wecannotbetoocarefulindoingexperiments.我們做實驗無論怎樣小心也不過分。Youcanneverbetoocarefulofyourhealth.你越注意健康越好。----Areyougoingtothefootballgame?----No.Theticketsare__expensiveforme.A.verymuchB.fartooC.highlyD.somuch解析:too+形容詞+forsb.表示 “太……”,far可置于too前表示 程度。B13.…whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.在未來的千百萬年中,生命能否在地球一延續將取決于這個問題能否得到解決。dependvi.相信,信賴;依靠,依賴(尤指錢);視……而定①YoucandependonJohn—heisalwaysontime.你可以相信約翰,他總是很準時。相關短語：believesb.相信某人（所說的話）believeinsb.信任/信賴某人trust(in)sb.相信/信任/信賴某人dependoncountonsb.relyon信任/相信/依賴/依靠某人Tellhimwhatyouwanttosay;he’samanto__.A.countB.believeC.trustD.depend解析:相信/信賴某人:counton sb./believeinsb./dependon sb./trust(in)sb.CI.根據下列各句句意及所給單詞的首字母或漢語提示，寫出該單詞的正確形式。1.This_____(理論)helpstoexplainhowanimalscommunicatewitheachother.2.Thefinalcostcouldbeasmuchasoneb_____dollars.3.31peoplehavebeeninjuredin_____(暴力的)incidentsthroughouttheday.練習坊theorybillionviolent4.Acrosstheg_____,sealevelvariesbyhundredsoffeet.5.A(n)_____(原子)issosmallthatwecannotseeit.6.Smokingish______tohealth,butsomepeoplecannotgetridofit.7.Thebestwaytogetthat_____________(二氧化碳)intotheatmosphereistowarmtheentireplanet.globeatomharmful

carbondioxide8.Thenewownershavetriedtogivetherestaurantamorefamily-friendly__________(氣氛).9.O_____isakindofgasthatisnecessaryformostanimalsandplantstolive.10.Iwassurprisedbythe_________(出席)ofsomanypeopleatthemeeting.atmosphereOxygenpresenceII.用括號中所給單詞的適當形式填空。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.用適當的介詞填空。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