howlifebeganontheearth2016.pptx
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1、我想知道你们是否介意帮我翻译几句句子?我想知道你们是否介意帮我翻译几句句子?如果你觉得翻译这几句句子有点难,如果你觉得翻译这几句句子有点难,那是时那是时候静下心来好好复习了。候静下心来好好复习了。让我们使得今日事今日毕成为一项规定。让我们使得今日事今日毕成为一项规定。Tom 把自己能说一口流利的英语这件事归功把自己能说一口流利的英语这件事归功于经常性的练习。于经常性的练习。我喜欢我的学生对学英语学习充满热情。我喜欢我的学生对学英语学习充满热情。When watching the video,what are you thinking about?vast&endless _universemy
2、steriousattractive/appealingworth exploring_ humanstinytiny but _humansintelligentAstronomyAstronomyAstronomyAstronomyUnit 4 Unit 4 AstronomyAstronomyAstronomyAstronomy:the science of the stars the science of the starsA s t r o n o m e rplanetssatellites/moonscometsgalaxiesdust.A s t r o n a u tThe
3、Solar SystemMyVeryExcellentMotherJustSentUsNinePizzasHowtoremembertheorderoftheeightplanets.EarthJupiterMarsMercuryNeptuneSaturnUranusVenusGoodbye,Pluto!Solar SystemMercuryNeptuneMarsEarthVenusUranusSaturnJupitersunWhat other subjects of science do we learn?mathsgeographymathematicianphysicistchemis
4、trychemistbiologybiologistgeolographerphysicsgeologygeologistHow did life begin on the earth?the origin/mystery of life on the earthTest your Memory!宇宙宇宙行星行星卫星卫星太阳系太阳系天文学(家)天文学(家)物理(学家)物理(学家)化学(家)化学(家)生物(学家)生物(学家)数学(家)数学(家)地理(学家)地理(学家)地质(学家)地质(学家)科学(家科学(家/的)的)科学理论科学理论宗教(的)宗教(的)起源起源神秘(的)神秘(的)创造(力创造(力
5、/者者/的的)生命的起源生命的起源把把A和和B相分离相分离Each religion and culture has its own legends about how life began on earth.What do you know?Big BangreligioustheoriesPangu separated the sky from the earthIneasternculture:Ineasternculture:The Goddess Nuwa mended the heaven and created human beings from the clay.Inweste
6、rnculture:God created the world in six daysGod created the world in 6 daysDay 7:God rested and blessed this day calling it Holy.Whats the scientific theory?HowLifeBeganontheEarth?Unit4 Reading:SkimmingforthemainideaofeachPara.Para.1:Para.2:Para.3:Para.4:Para.5:The importance of _for life A widely ac
7、cepted _about theformation of the universeThe development of _and _on the earthThe formation of the _The arrival of _and their impact on the earth theorywaterhumansearthplantsanimalsMain bodyPara 1:Para 2:Para 3:Para 5:AwidelyacceptedtheoryabouttheformationoftheuniverseTheformationoftheearth.Theimpo
8、rtanceofwaterforlife.Thedevelopmentofplantsandanimalsontheearth.Thearrivalofhumansandtheirimpactontheearth.Analyse the structure and get the main idea of each part.Para 4:ThedevelopmentoftheearthTheevolutionoflifeBig Banga cloud of dust a solid globeexplosion gasesatmosphereHowtheearthcameintobeing
9、oceans and seas watercarbon,nitrogen,water vapor,and other gasesLife began!Why was the earth different from the other planets?Scanning The evolution of life 12345678910smallplantsinwatershellfishandallsortsoffish insectsreptilesamphibiansmammalsdinosaurshumansplantsanimalsgreenplantsonlandforestsWhy
10、 did the plants grow before the animals came?What are the differences between reptiles and mammals?How did dinosaurs disappear?Describe the videoTeamworkPut a sound track into the video dubbing(配音配音)Use the sentence in the text to describe the picture:They are putting toomuch carbon dioxideinto the
11、atmosphere,which prevents heat from escaping from the earth into space.Para.5greenhouse effectTheearthmaybecometoohottoliveon.Further understanding:What attitude does the author hold towards the humans future?A.Optimistic(积极的)积极的)B.Pessimistic(悲观的)悲观的)C.Worried D.Indifferent(漠不关心的)漠不关心的)Put a sound
12、track into the video dubbing(配音配音)Replace the underlined parts,using the vocabulary from the reading passage.1.However,accordingtoawell-knowntheory,theuniversestartedwitha“BigBang”thatthrewmatterineverydirection.2.Theywerefinallytoproducecarbon,nitrogen,watervapourandothergases.3.Itwasnotimmediately
13、obviousthatwaterwastobebasictothedevelopmentoflife4.Theextremelysmallplantsspreadandmadetheoceansandseasfilledwithoxygen.5.Therefore,itstheirturntobecomethemostimportantanimalsontheplanet.6.Whetherlifewillcontinueontheearthforthenextmillionsofyearswilldependonwhetherthisproblemcanbesolved.However,ac
14、cordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.Theywereintimetoproducecarbondioxide,nitrogen,watervapourandothergases,whichweretomaketheearthsatmosphere.Thisprododucedachainreaction,whichmadeitpossibleforlifetodevelop.Theymultipliedandfilledtheoceansandse
15、aswithoxygen,whichencouragedthelaterdevelopmentofearlyshellfishandallsortsoffish.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.No one knows exactly _ the earth began,as it happened._ it was to become was uncertain until between 4.5 and 3.8 bil
16、lion years ago _ the dust settled into a solid globe.The earth became so violent that it it was not clear _the shape would last or not.It was not immediately obvious _ water was to be fundamental to the development of life._ is even more important is _ as the earth cooled down,water began to appear
17、on its surface._ many scientists believe is _ the continued presence of water allowed the earth to dissolve harmful._ they suddenly disappeared still remains a mystery/unknown.As a result of this,many scientists believe_ the earth may become too hot to live on._ life will continue on the earth for m
18、illions of years to come will depend on _ this problem can be solved._ life began on earth is one of the biggest puzzles.howWhatwhenwhetherthatWhatWhatWhythatWhetherwhetherHowthatthat1.Thisprododucedachainreaction,whichmadeitpossibleforlifetodevelop.which引引导导的的非限制性非限制性定从(表示定从(表示结结果果)(thus)doing作作结结果
19、状果状语语makingTheymultipliedandfilledtheoceansandseaswithoxygen,whichencouragedthelaterdevelopmentofearlyshellfishandallsortsoffish.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.thusencouragingthuspreventing2.Thisdisappearancemadepossibletheriseo
20、fmammalsontheearth.Thedinosaursdisappeared,_.Thedisappearanceofdinosaursmadeitpossibleformammalstoriseontheearth.make sth.possibleThedinosaursdisappeared,_./thusmakingpossibletheriseofmammals.make it possible for sb.to doformammalstoriseontheearth.whichmadeitpossiblethusmakingitpossibleformammalstor
21、iseontheearth3.No one knows exactly how the earth began,as it happened so long ago.No one knows exactlyWhytheysuddenlydisappearedstillremainsamystery/unknown.Howlifebeganonearthisoneofthebiggestpuzzlesthatscientistsfoundhardtosolve.Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastorno
22、t.Whatitwastobecomewasuncertainuntil.when.ItwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflifeIt remains to be seen wh-4.Itwasnotclearwhethertheshapewouldlastornot.Whethertheshapewouldlastornotwasnotclear.Whatitwastobecomewasuncertainuntil.when.Itwasnotimmediatelyobviousthatwa
23、terwastobefundamentaltothedevelopmentoflife.Whytheysuddenlydisappearedstillremainsamystery/unknown.Howlifebeganonearthisoneofthebiggestpuzzlesthatscientistsfoundhardtosolve.Paraphrase the sentences accordingly“it”作作形式主形式主语语That water.was not.5.Whatisevenmoreimportantisthatastheearthcooleddown,waterb
24、egantoappearonitssurface.Whatimpresses/concerns/interests/surprises/excitessb.(most)is+sth./thatclause.More/mostimportantly,astheearthcooleddown,waterbegantoappearonitssurface.Whatmattersevenmoreisthatastheearthcooleddown,waterbegantoappearonitssurface.6.Accordingtoawidelyacceptedtheory,theuniverseb
25、eganwitha“BigBang”thatthrewmatterinalldirections.Itiswidelyacceptedthatthetheuniversebeganwitha“BigBang”.Itisawidelyacceptedtheorythatthetheuniversebeganwitha“BigBang”.Itiswidely/generally/universallyacceptedthat.believed/consideredagreedadmitted/acknowledgedrecognized1.As a result of this,many scie
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