model+3+unit+4Astronomyppt課件.pptVIP

1,Unit4Astronomy:thescienceofthestars,2,explodesurfacemethodpreventspreaddevelopastronomy,E.burstsuddenlywithaloudnoise,A.outsideofsomething,B.wayofdoingsomething,F.stopsomethinghappening,D.becomewider;gotootherplaces,C.growup;takeshape;becomelargerormorecomplete,G.scientificstudyofthestars,3,quiz,1.WhowrotethebookTheOriginofSpecies(物種起源)?AIssaacNewtonBAlbertEinsteinCCharlesDarwin,2.WhoisfamousforthetheoryofBlackHoletheory?(黑洞)AHawkingBNewtonCEinstein,3HowmanybigplanetsarethereintheSolarSystem?A7B8C9,4.Whichonebelongstoamphibian?AfrogBsnakeCdinosaur,5.Whichonebelongstoreptile?AfishBsnakeCbird,4,8.Onwhichplanetaretherelivesatpresent?AtheVenusBtheEarthCtheMars,7.whichgasisthemostimportantforlife?A.carbondioxide(CO2)B.oxygen(O2)C.nitrogen(N2),6whichonebelongstomammal?AdinosaurBdogCfish,5,HOWLIFEBEGANONTHEEARTH,6,Scanthetextandputthedevelopmentoflifeintorightorder.,B.presenceofwater,A.greenplantsandanimalsonland,D.smallplantsandanimalsinthewater,C.humansappear,B,D,A,C,7,presenceofwater,greenplantsandanimalsonland,smallplantsandanimalsinthewater,humansappear,8,Whathappenedaftertheearthexploded?,theearthexploded,watervapour,carbondioxide,oxygen,nitrogen,othergases,9,A.theearthsatmosphere,B.BigBang,C.Theearthexplodedandproducedkindsofgases,D.water,E.theearthcooleddown,F.acloudofenergeticdust,G.slowlycombineintoaball,1,2,3,4,5,6,7,Putthesesentencesintotherightorder,10,A,H,B,D,F,G,E,C,A,H,B,C,F,G,E,D,11,water,Plantsinthewater,Shellfishandfish,Insectsandamphibians,Reptiles,Dinosaurs,Mammals,Plantsonland,12,1.Whatitwastobecomewasamysteryuntilthedustbegantoslowlycombineintoaballmovingaroundthesun.,_（使大家吃驚的是）isthathedidntcometothemeeting.,Whatsurprisedeverybody,2._（他所做的）addedtoourdifficulty.,Whathedid,_wecantgetseemsbetterthan_wehave.What;whatB.What;thatC.That;thatD.That;what_madetheschoolproudwas_morethan90%ofthestudentshadbeenadmittedtokeyuniversities.A.What;becauseB.What;that;C.That;whatD.That;because,A,B,13,2.Theproblemwasthattheearthbecameviolentbecauseitwasnotclearwhetherthesolidshapewastolastornot.問題是地球開始變得激烈動(dòng)蕩，不知道這個(gè)固體形狀是否會(huì)繼續(xù)下去。,n.固體solid,(liquid液體,gas氣體),solidfuelssolidfoodasolidspheresolidfurniture,1)Matterhasthreestates:solid,liquidandgas.,2)Whenwaterfreezes,itbecomessolidandwecallitice.,adj.固體的；實(shí)心的,無空隙的；結(jié)實(shí)的，堅(jiān)固的,14,beto(do):(something)willdefinitelyhappen,oritmusthappen不可避免要發(fā)生或必須發(fā)生,e.g.Theysaidgoodbye,knowingthattheywerenevertomeetagain.,Sheistobehonouredforthisgreatwork.,Mr.Clarksaidtohisdaughter,“Youaretobehomeby10oclock.”,15,3.Itexplodedloudlywithfireandrock,whichwereintimetoproducethewatervapour,1).（使某物）炸開，爆炸,2).（指感情）激發(fā),3).（指人口）突然或迅速增加,Thefireworkexplodedinhishandandhewashurtseriously.,Iwasfrightenedwhensheexplodedintoloudlaughter.,Nowitisnoteasytofindjobswiththeexplodingpopulation.,explosionn.爆炸（聲）,explosiveadj.爆炸性的，易爆炸的n.炸藥，爆炸物,16,intime(forsth/todosth):notlate及時(shí)；不遲她來得及回來準(zhǔn)備晚飯。,intime:soonerorlater;eventually遲早；最后總有一天我會(huì)遇見他。,in/outoftime:in/notinthecorrecttime合/不合節(jié)拍觀眾合著音樂的節(jié)拍拍手。,Shewillbebackintimetopreparedinner.,Illseehimintime.,Theaudienceclappedintimetothemusic.,17,與time相關(guān)的短語:innotimeattimesatatimeonceuponatime,立刻,馬上,有時(shí),每次;依次,從前,ontimeatonetimeforthetimebeingfromtimetotime,按時(shí);準(zhǔn)時(shí),從前,暫時(shí),不時(shí)地,18,4.Astheearthcooleddown,waterbegantoappearonitssurface.隨著地球的冷卻,地球的表面就開始出現(xiàn)了水。,cooladj.涼快；冷靜；冷淡,v.（使）變冷；冷靜下來,1)Letssitintheshadeandgetcool.,4)Therainhascooledtheair.,2)IknewIhadtokeepcool.,3)Hisplayreceivedacoolresponsefromthepublic.,5)Letyoursoupcoolalittlebeforeyoudrinkit.,6)Aheatedargumentcanbesettledbetterifbothsidescooldownfirst.,7)Itriedtocoolherdownbutshewasstillveryangry.,19,5.Nobodyknewthatitwasgoingtobedifferentfromotherplanetsgoingroundthesun.,bevery/much/quite/entirely/totallydifferentfrom與不同,Citylifeisquitedifferentfromcountrylife.,1）城市生活和農(nóng)村生活很不同。,2）他們的品位和我不同。,Theirtastesaredifferentfrommine.,Therearedifferencesbetweenandtellfromthesameasbesimilarto,與之間有不同之處,把與區(qū)分開來,與一樣,與相似,20,6.Itallowstheearthtodissolveharmfulgases,which,allowvt.允許、許可、容許allow+n./pron./doingallowsb.todobeallowedtodo,Myfatherdoesntallowsmokingathome.Infacthedoesntallowustosmokeanywhereatanytime.,父親不允許在家里吸煙。實(shí)際上，他不允許我們?cè)谌魏蔚胤饺魏螘r(shí)候吸煙。,Areweallowedtousethecomputer?,我們可以用電腦么？,21,beharmfulto,doharmtosb.=,1)Pollutionisespeciallyharmfultoanimals.,2)Smokingwilldoyoualotofharm.,對(duì)有害,dosb.harm傷害某人，對(duì)某人有害處,22,it作形式賓語，其真正的賓語可以是不定式，動(dòng)名詞和從句。,TheforeignMinistersaid,“_ourhopethatthetwosideswillworktowardspeace.”(2004BJ)A.ThisisB.ThereisC.ThatisD.Itis,2.Ilike_intheautumnwhentheweatherisclearandbright.(NMET2004)A.thisB.thatC.itD.one,3.Whydontyoubring_tohisattentionthatyouaretoobusytodoit?A.thisB.thatC.whatD.it,D,C,D,7.Thatmadeitpossibleforlifetobegintodevelop.,23,4.Why?Ihavenothingtoconfess._youwantmetosay?A.WhatisitthatB.WhatitisthatC.HowisitthatD.Howitisthat5.Wasitattheschool_wasnamedafterahero_hespenthischildhood?A.which;thatB.where;whereC.that;whereD.which;where,A,A,24,8.Theymultipliedandfilledthefirstoceansandseaswithoxygen.,multiply(數(shù)目上)增加，增多；乘；（使）繁殖,1)Ourproblemshavemultipliedsincelastyear.,2)multiply2and5andyouwillgetto10.,4)Theplantsheremultiplyrapidly.,3)6multipliedby5is30.,=Multiply6by5tomake30.,25,9.Thisencouragedthedevelopmentofearlyshellfishandallsortsoffish.,encourage鼓舞；促進(jìn)；慫恿。后接名詞、代詞，也可接不定式作賓語補(bǔ)足語。如：,Highpricesforcornandwheatwillencouragefarming.,玉米和小麥的高價(jià)將促進(jìn)農(nóng)業(yè)的發(fā)展。,Mysuccessencouragedmetocontinue.,我的成功鼓勵(lì)我繼續(xù)干下去。,Heencouragedmetolearndancing.,他鼓勵(lì)我去學(xué)跳舞。,26,10.Manymillionsofyearslaterthefirstgreenplantsbegantoappearonland.,late,adj.遲到的，晚的；前任的；以前的；已故的,later,adv.后來，較晚時(shí)候,過后adj.late的比較級(jí)(更遲的,更后的),latest,adj.最新的,lately,adv.=recently近來,1)Mr.ZhuRongjiisthelatePrimeMinisterofChina.,3)ShearrivedinLondononMonday,2dayslaterheleftforNewYork.,5)Whathaveyoubeendoinglately?,2)Heisoftenlateforschool.,4)Haveyouheardaboutthelatestnews?,27,11.Whentheplantsgrewintoforests,reptilesappearedforthefirsttime.,她漸漸出落成一個(gè)美麗的姑娘。,生長(zhǎng)成為,漸漸成為或變得（不用于被動(dòng)語態(tài)）,Sheisgrowingintoabeautifulyoungwoman.,28,12.Theyproducedyounggenerallybylayingeggs.,Itsgenerallybelievedthat一般認(rèn)為,generallyspeaking一般而言，概括來說,1)Itsgenerallybelievedthatgirlsworkharderthanboysdo.,2)Generallyspeaking,womencrymoreeasilythanmen.,29,Thenaughtyboy_tomethatthehenthat_therejustnowhad_twoeggsthedaybefore.A.laid;laid;laidB.laid;lay;lainC.lied;laid;lainD.lied;lay;laid,D,30,13.Smallcleveranimals,nowwithhandsandfeet,appearedandspreadallovertheearth.,vi.,散布,傳播，蔓延,伸展，擴(kuò)展,vt.,鋪開，攤開,1)Thenewsspreadthroughtheschoolveryquickly.,2)Ispreadanewclothonthetable.,31,14.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.,阻止某人做某事:,preventsb.(from)doingsth.,stopsb.(from)doingsth.,keepsb.fromdoingsth.,1)Wemustpreventthemfrommakingtrouble.,2)Youshouldpreventthechildfrominjuringhimself.,Ifnothingprevents,如果沒有什么阻礙的話,32,15.Whetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.,dependon,sb./sth.,sb.todosth.sb.doingsth.,sb./sth.forsth.,相信，信賴,依靠,依賴,視而定，取決于,1)Whenyouareinastrangeplaceyoudbetterdependonthemap.,2)Youcantdependonotherstohelpyou.,3)Hedependsonhispenforhisliving.,wh-,33,4)Successdependsonyourownhardwork.,dependonit沒問題，請(qǐng)放心（句末或句首）,That/It(all)depends.那得看情況而定,1)Dependonit,youllsucceed.,2)Hemaysupportme,butitdepends.,Tellhimwhatyouwanttosay;hesamanto_.A.countB.believeC.trustD.depend解析:相信/信賴某人:countonsb.believeinsb.dependonsb.trust(in)sb.,C,