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。_______________________________________________________________________________________...
