Unit4Howlifebeganontheearth

Reading

高一英語組WarmingupLookatthepicturesanddiscusshowlifebeganontheearth.1.Panguseparatedtheskyfromtheearth2.Nvwacreatedhumans.

3.Godcreatedtheworld.

DiscussAretheyscientificideasorreligiousideas?Lookatthetitleofthetextandguessthemainideaofthepassage.Itismainlyabouthowlifecameintobeingontheearth.Skimming:Readthetextquicklyandfillinthefollowingchart.MainideaofthepassageTheappearanceanddevelopmentoflifeontheearthMainideaofparagraph1Mainideaofparagraph2Mainideaofparagraph3Mainideaofparagraph4Mainideaofparagraph5MainideaofthetextTheappearanceanddevelopmentoflifeontheearthMainideaofparagraph1Mainideaofparagraph2Mainideaofparagraph3Mainideaofparagraph4Mainideaofparagraph5TheformationoftheearthAwidelyacceptedtheoryabouttheformation(形成，產(chǎn)生)oftheuniverseTheimportanceofwaterforlifeThedevelopmentofplantsandanimalsontheearthTheappearanceofhumansandtheirimpactontheearthIntensivereading：Putthefollowingstatementsintheorderoftime.1.Waterwasfirstfoundontheearth.2.Theearthwasacloudofdust.3.Shellfishandotherfishcameintoexistence.4.Cleveranimalswithhandsandfeetappeared.5.Plantsbegantogrowondryland.6.Therewerefirstinsectsandamphibians.7.Dinosaursappeared.

2-1–3-5-6-7-4Decidethefollowingstatementstrueorfalseaccordingtothetext.（）1.Weallknowexactlyhowtheworldcameintobeing.（）2.Attheverybeginningtheearthwasveryviolentsothatitwasunclearwhethertheshapewouldlastornot.（）3.Thecontinuedpresenceofwaterontheearthmadeitpossiblethatlifeslowlydevelopedontheearth.（）4.Dinasaursexistedontheearthandtheywerethefirstmammals.（）5.Lifeissuretocontinueontheearthinthefuture.

()1.Weallknowexactlyhowtheworldcameintobeing.()2.Attheverybeginningtheearthwasveryviolentsothatitwasunclearwhethertheshapewouldlastornot.

FT()3.Thecontinuedpresenceofwaterontheearthmadeitpossiblethatlifeslowlydevelopedontheearth.()4.Dinasaursexistedontheearthandtheywerethefirstmammals.

TF()5.Lifeissuretocontinueontheearthinthefuture.FTranslatethedifficultsentences.Meanwhilepaymoreattentiontotheunderlinedparts.1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonthesurface.3.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospare.1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.該句中的whatitwastobecome是一個____從句，在整個句子中做主語，betodo這一結(jié)構(gòu)在本句中表示過去將來。whenthedustsettledintoasolidglobe是一個___從句。主語定語2.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonthesurface.該句中的Whatisevenmoreimportant是一個______從句，在整個句子中做主語。thatastheearthcooleddown,waterbegantoappearonthesurface是一個____從句，在這一從句中又含有一個as引導(dǎo)的______狀語從句。

主語表語時間3.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospare.該句中的whichpreventsheatfromescapingfromtheearthintospare是一個______從句，在整個句子中做定語，其中which指代______________________________________________________這個句子。定語TheyareputtingtoomuchcarbondioxideintotheatmosphereRetellthetextusingtheproperwords.

__________(1根據(jù)

)awidelyacceptedtheory,theuniverse__________(2從…開始)a“BigBang”.Forseveralmillionyearsafterthat,theearthwasstill_____________(3一團塵埃).Thedustcombinedintoaball,_____(4move)aroundthesun.Theearthbecameviolentanditexplodedloudly.Astheearth__________(5冷卻),waterbegantoappearonitssurface.Thecontinuedpresenceofwatermade_____(6)possibleforlifetodevelop.AccordingtobeganwithacloudofdustmovingcooleddownitFirstofall,smallplantsbeganto________(7出現(xiàn))onthesurfaceofthewater.Thereappearedshellfishandallsortsoffishinthewater.Latergreenplantsbegantogrow________(8在陸地上).Whentheygrewintoforests,reptilesappearedandtheyproducedyounggenerallyby________(9產(chǎn)卵)Thedisappearanceofdinosaurs___________(10還是一個謎)butitmadeitpossibleforthemammalstodevelopontheearth.Amongthemammalsthemostimportantanimalshumanbeingsproduced________(11太多)carbondioxide,whichpollutestheairandpreventsheatfromescapingfromtheearthintospace.Asaresult,thereissomedoubt________(12)lifewillcontinueontheearthformillionsofyearstocome.

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