英语 Unit 4 Astronomy the science of the stars（5） 新人教版必修3 .ppt

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1、Unit4Astronomy:thescienceofthestarsHowlifebeganontheearth(languagepoints)Theearthwasjustacloudof_afterthe“BigBang”.Theearthwasjustacloudof_afterthe“BigBang”.Theearth_loudlywithfireandrock.TheywereTheearth_loudlywithfireandrock.Theywere_toproducemanythings,whichweretomakethe_toproducemanythings,which

2、weretomaketheearthsatmosphere.Astheearthcooleddown,waterearthsatmosphere.Astheearthcooleddown,waterbegantoappearonitssurface.Itallowedtheearthtobegantoappearonitssurface.Itallowedtheearthtodissolve_gases.Thenlifebegantodevelop.dissolve_gases.Thenlifebegantodevelop.Review the main idea of the text:du

3、stexplodedin timeharmfulSmallplants_andfilledthefirstoceansandseaswithoxygen.Thisencouragedthe_ofearlyshellfishandfish.Landanimalssuchasinsects,reptilesanddinosaursappearedaftergreenplantsappeared.Smallcleveranimals_allovertheearth.Theyareputting_carbondioxideintotheatmosphere,which_heatfromtheearth

4、intospace.Whetherlifewillcontinueontheearthformillionsofyearstocomewill_whetherthisproblemcanbesolved.multiplieddevelopmentspreadtoo muchpreventsdepend on请从课文中找出以下词汇和短语1在太阳系中_2八大行星_3生命的起源_4宗教与文化_5一个广泛认可的理论_6生命的演变_in the solar systemin the solar systemeight planestseight planeststhe origin of lifethe

5、 origin of lifereligion and culturereligion and culturea widely accepted theorya widely accepted theorythe development of lifethe development of life8水的持续存在_9一联串的反应_10在水的表面_11绿色植物_12陆地动物_13二氧化碳_14由于、的原因_15全球变暧_the continued presence of waterthe continued presence of watera chain reactiona chain reac

6、tionon the surface of the wateron the surface of the watergreen plantsgreen plantsland animalsland animalscarbon dioxidecarbon dioxideas a result ofas a result ofglobal warmingglobal warming比较Ved和Ving作定语的区别awidelyacceptedtheory一个广泛认可的理论thecontinuedpresenceofwater水的持续存在adevelopingcountryawaitingrooma

7、comingexam发展中国家候车室即将到来的考试请选择正确的词汇填空a_boya_cupan_match_leavesa_bird_airandwaterthe_sunbrokenbrokenrunningrunningfallenfallenexcitingexcitingpollutedpollutedrisingrisingflyingflyingrunningrunningbrokenbrokenexcitingexcitingfallenfallenflyingflyingpollutedpollutedrisingrising比较asaresult,asaresultof的区别H

8、ewaslateasaresultofthesnow.hedefeatedallcompetitorsandasaresult,hewonthescholarship.asaresultof表原因=becauseofasaresult,表结果Heworkedhardathisstudy._hepassedtheexameasily._hishardwork,hepassedtheexameasily.As a result,As a result,As a result ofAs a result of1However,accordingtoawidelyacceptedtheory,theu

9、niversebeganwitha“BigBang”.beginwith:起源于;开始(做)（译中）TheEnglishalphabetbeginswith“A”andendswith“Z”.(water,littledropsof,thefirstoceans,beginwith)Thefirstoceansbeganwithlittledropsofwater.(译英)海洋最初是由小水珠组成的.比较beginwith,startwith,endwith,endin,tobegin/startwith,的区别Athousandlijourney_thefirststep.They_thepl

10、ay_asong.Theirlongstruggle_failure._,hehadnomoney,butlaterhebecameveryrich.starts/begins withstarts/begins withendedendedwithwithended inended inTo begin withTo begin with2theearthexplodedloudlywithfireandrock.Theywereintimetoproducecarbon,nitrogen,watervapourandothergases,whichweretomaketheearthsat

11、mosphere.betodo:必将会命中注定常用来表示不可避免将要发生的事。（译中）Asayoungman,hedidntknowhewastowinworldfamelateron.（betodo,haveamajoreffecton,Thisdiscovery,thetreatmentof,heartdisease）Thisdiscoverywastohaveamajoreffectonthetreatmentofheartdisease.(译英)这个发现对心脏的治疗将产生重大的影响。比较betodo,beabouttodo,will,begoingtodo的区别Thefootballm

12、atch_beputoffifitrainstomorrow.Themid-termtest_arrive.Tomsaidhe_havealongtripduringthesummerholiday.Thestudentsweretoldthatthey_meetattheschoolgateat2:00thefollowingafternoon.willis about towas going towere to 3Theyproducedyounggenerallyby3Theyproducedyounggenerallybylaylayingingeggseggs.layeggslaye

13、ggs:下蛋下蛋lay（laid；laid；laying放放,把把放在放在；产卵；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;laidliedlaylaid4becausetheygavebirthtoyoungbabyanimalsandproducedmilktofeedthem.giveb

14、irthto:生下；产生（译中）Shesjustgivenbirthtoahealthybabygirl.（latestnovel,givebirthto,Theunforgettableexperience,his）Theunforgettableexperiencegavebirthtohislatestnovel.（译英）这段难忘的经历促成了他最新的一（译英）这段难忘的经历促成了他最新的一部小说的诞生。部小说的诞生。句型转换givebirthto,bearLynnsmothergavebirthtohiminGermany.Lynnsmother_himinGermany.Lynn_in

15、Germany.borewasborn5Thustheyhave,5Thustheyhave,intheirturnintheirturn,becomethemost,becomethemostimportantanimalsontheplanet.importantanimalsontheplanet.inonesturn:inonesturn:轮到某人；接着轮到某人；接着（译中）（译中）Then,intheirturn,theyraisedaquestionThen,intheirturn,theyraisedaquestionwhichcausedaheateddiscussion.wh

16、ichcausedaheateddiscussion.inturn,byturns,taketurnstodo,inonesturninturn,byturns,taketurnstodo,inonesturnTheywentintotheroom_tovisittheTheywentintotheroom_tovisitthepaintings.paintings.Thecouplewashdishes_.Thecouplewashdishes_.They_watchthedyke(They_watchthedyke(河堤河堤).).NowthatIhavefinishedbuying,To

17、m,_,NowthatIhavefinishedbuying,Tom,_,shouldcook.shouldcook.in turnin turnby turnsby turnstake turns totake turns toin his turnin his turn6Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.prevent（from）:制止(防止)某人(某物)做某事=stop（from）=keepfrom(译中)Nothin

18、gcanpreventthisplanfrombeingcarriedout.(sunbonnet,take,preventfrom,beburn,)Wealltookoursunbonnetstopreventusfrombeingburn.（译英）我们都带上了太阳帽防止被太阳晒伤。课堂复习whatdotheymean?givebirthtosolarsystembeartheoriginoflifelayeggsglobalwarmingbetodoasaresult,begoingtodocarbondioxidebeginwithendintobegin/startwithhomework一、完成讲义Unit 4 Astronomy:the science of the starsHow life began on the earth(reading)课后练习题二、准备听写课堂13个习惯表达