Unit22EnvironmentalProtectionPeriodOneWarmupandLesson1课时精练(北师大版选修8,课标通用)时间:45分钟Ⅰ.用适当的介、副词填空1.Because________thegreenhouseeffect,theEarthiswarmedbygasestrapped________theatmosphere.2.Globalwarmingisanincrease________timeoftheaveragetemperature________theEarth.3.Globalwarmingrefers________anaverageincreaseintheEarth'stemperaturethat,inturn,leads________climatechange.4.Theamountofcarbondioxide________theatmospherehasrisen________morethan30%inthelast250years________halfofthisincreaseoccurringsince1960.5.Manyexpertsinsistthattheblame________thisglobalwarmingcanmostlybepinned________humanactivities.6.Ifwecontinuetoproducecarbondioxideandothergases________suchhugequantities,wearecondemninglife________Earth.7.Seriousdiseaseswillspreadandindustriesthatrely________naturesuch________fishingwillbebadlyaffected.8.Iflesscarbondioxidegoes________theatmosphere,globalwarmingwillslow________.9.Evensimplethingslikeusingrecycledpaperorswitching________thelightswhenyouleavearoomcanhelp.10.Ifweadd________allthesesmallchangesmade______everyoneworldwide,theywon'tbesuchsmallchanges.答案1.of;in2.over;of3.to;to4.in;by;with5.for;on6.in;on7.on;as8.into;down9.off10.up;byⅡ.单词拼写1.Becauseofthegreenhouseeffect,theEarthiswarmedbygases________(困在)intheatmosphere.2.Overfishingisharmfultothe________(生态)ofthesea.3.Breweriesareoftenbuiltinnature________(保护区).4.Inthelastfewdecades,scientistshavereached________(一致的意见)thathumanbeingsarecausingchangesintheEarth'sclimate.5.Howisglobalwarming________(……与相联系)toourlives?6.Withoutthesenaturallyoccurringgases,thesun'srayswouldb________backintospace.7.IfyoucontinutetoproduceCO2andothergases,youarec________lifeonEarth.8.Manypeoplebelievethattheyaresimplynotpreparedtos________theamountofmoneytheymakefromindustrytosavetheEarth.9.Theysuggestmakingsmallchangesliketakingpublictransportandr________.10.Afterall,there'snos________forourEarth.答案1.trapped2.ecology3.reserves4.consensus5.relevant6.bounce7.condemning8.sacrifice9.recycling10.substituteⅢ.佳句翻译与仿写1.Inthelastfewdecades,scientistshavereachedconsensusandreportedthathumanbeingsarecausingchangesintheEarth'sclimate—somethingpreviouslyseenasbeyondourcontrol.翻译:__________________________________________________________________________________________________________________________仿写:在过去的四年里,汤姆游遍了中国的大部分城市。__________________________________________________________________________________________________________________________2.Lookingahead,scientistsbelievethatglobalwarmingcouldbeoneofthebiggestenvironmentalproblemsfacingthe21stcentury.翻译:_____________________________________________________________________________________________________________________________仿写:受到老师的鼓励后,李华展望未来,充满了信心。______________________________________________________________________________________________________________________________3.Withoutthesenaturallyoccurringgases,thesun'srayswouldbouncebackintospaceleavingtheEarthcoldandimpossibletoliveon.翻译:__________________________________________________________________________________________________________________仿写:如果地球上没有水,植物就会死亡。_______________________________________________________________________________________...