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ID:62131558
大小:2.01 MB
页数:31页
时间:2021-04-18
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1、必修三-Unit4-language-pointsAstronomyisthescientificstudyoftheu______andtheheavenbodies(suchasthesun,themoon,ands_____),gas,andd____withinit.astronomerniversetarsustsolarsystem[ˈjʊrənəs][ 'viːnəs][mɑ:z][ˈmɜrkjəri][ˈdʒu:pɪtə][ˈneptju:n][ˈsætɜ:n]Choosethemaini
2、deaforeachparagraph()Thearrivalofhumansandtheirimpactontheearth()Theformationoftheearth()Thedevelopmentofplantsandanimalsontheearth()Awidelyacceptedtheoryabouttheformationoftheuniverse()Theimportanceofwaterforlife54213Para.1Itisawidelyacceptedtheorythatth
3、euniversebeganwitha___________.“BigBang”threw________inalldirections,andatomsbegantoformandcombinetocreate_____andother______.“BigBang”matterstarsbodiesPara.2:TheformationoftheearthForseveralbillionyearsafterthe“BigBang”,theearthwasa______________andwhati
4、twastobecomewas_________.Between4.5and3.8billionyearsago,thedustsettledintoa_____________.However,theearthwasso______thatitexplodedwith____and_____.Asaresult,theyproduced_______,________,_______andothergases,whichmakestheearth’s_________.Astheearthcooledd
5、own,______begantoappearonitssurface.cloudofdustwateratmospherecarbondioxidenitrogenwatervapourrockfireviolentsolidglobeuncertainPara.3:TheimportanceofwaterforlifeWhichwordinpara.3hassimilarmeaningwith“important”?fundamentalThe_________________ofwateristot
6、hedevelopmentoflife.continuedpresence同义句改写:Thecontinuedpresenceofwater_____________________________.madeitpossibleforlifetodevelopTimePlacePlantsAnimals3billionyearsago540millionyearsago250millionyearsago65millionyearsagoPara.4:The___________oflifeontheEa
7、rthOceansandseasSmallplantsEarlyshellfishandallsortsoffishlandforestsGreenplantsInsects;amphibiansReptilesdinosaursMammalsdevelopmentevolutionPara.5:ThearrivalofhumansandtheirimpactontheearthWhat’sthemainproblemthathumansbringtotheearth?Theyareputtingtoom
8、uchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearth.Asaresult,theearthmaybecometoohottoliveon.WhatwillhappenwhenweputtoomuchCO2intotheatmosphere?greenhouseeffectglobalwarminganimalswilldieout
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