Unit4Astronomy：thescienceofthestarsSectionⅠWarmingUp&Reading课时精练（人教版必修3，课标通用）Ⅰ.课文缩写Theearthwasjustacloudof__1__afterthe“BigBang”．Theearth__2__loudlywithfireandrock.Theywerein__3__toproducemanythings,whichweretomaketheearth'satmosphere.Astheearthcooleddown，waterbegantoappearonitssurface.Itallowedtheearthtodissolve__4__gases.Thenlifebegantodevelop.Thefirstsmallplants__5__andfilledtheoceansandseaswithoxygen.Thisencouragedthe__6__ofearlyshellfishandfish.Landanimalssuchasinsects，reptilesanddinosaursandsoonappearedaftergreenplantsappeared.Smallcleveranimals__7__allovertheearth.Theyareputtingtoo__8__carbondioxideintotheatmosphere,which__9__heatfromtheearthintospace.Whetherlifewillcontinueontheearthformillionsofyearstocomewill__10__onwhetherthisproblemcanbesolved.答案1.dust2.exploded3.time4.harmful5.multiplied6.development7.spread8.much9.prevents10.dependⅡ.单词拼写1．Hewasinterestedin________(天文学)andalwaysstayedupatnighttowatchthestars.2．Computerhackershavebrokendownsecurity________(系统),raisingquestionsaboutthesafetyofinformation.3．Toomuchsugarcanbe________(伤害)tochildren'steeth.4．Thethreestarhoteloffersafriendly________(气氛)andpersonalservice.5．Whatyoudidwould________(阻止)thechildrenfromplayingcomputergamestoomuch.6．Mary's________(到场)atthepartylastnightwasnotnoticed.7．6________(乘)by5is30.8．________(理论)isbasedonpractice.9．Notlongagoa________(剧烈)earthquakeoccurredoffthecoastofIndonesia.10．Mysister________(困惑)meandcausesmeanxiety.答案1.astronomy2.systems3.harmful4.atmosphere5.prevent6.presence7.multiplied8.Theory9.violent10.puzzlesⅢ.翻译与仿写1．LastmonthIwasluckyenoughtohaveachancetomakeatripintospacewithmyfriendLiYanping,anastronomer.翻译：_____________________________________________________仿写：只有二十个学生被选出到国外学习，我很幸运成为其中一个。____________________________________________________________2．Whenwegetclosertothemoon,weshallfeelitsgravitypullingus,butitwillnotbeasstrongapullastheearth's.翻译：______________________________________________________仿写：她和她的姐姐一样有着吸引人的嗓音。____________________________________________________________3．ButwhenItriedtostepforward，IfoundIwascarriedtwiceasfarasontheearthandfellover.翻译：_______________________________________________________仿写：这个月汽车的产量是上个月的两倍。_____________________________________________________________4．NowthatyouwanttoimproveyouroralEnglish，youshouldspeakEnglisheveryday.翻译：________________________________________________________仿写：既然已经长大，你必须停止这种幼稚的行为。_____________________________________________________答案1.翻译：我的朋友李彦平是一位宇航员。上个月我有幸有机会同他一道去太空旅行。仿写：Therewere20studentschosentogoabroadtostudy,andIwasluckyenoughtobeoneofthem.2．翻译：当更接近月球时，我们就会感到月球的引力在拉我们。但是，月球的引力不像地球的引力那么大。仿写：Shehasasattractiveavoiceashersister.3．翻译：当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。仿写：Theoutputofcarsthismonthistwiceasmuchaslastmonth.4．翻译：既然你想提高英语口语，你应该每天说英语。仿写：Nowthatyouaregrownup,youmuststopthischildishbehaviour.Ⅳ.句型转换1．Hewentbackhome,andhefelttiredandhungry.Hewentbackhome，________________________.他回到家时又累又饿。2．Nowtheweatherisfine,let'sgofor...
