


如果您无法下载资料,请参考说明:
1、部分资料下载需要金币,请确保您的账户上有足够的金币
2、已购买过的文档,再次下载不重复扣费
3、资料包下载后请先用软件解压,在使用对应软件打开
第PAGE\*MERGEFORMAT3页共NUMPAGES\*MERGEFORMAT3页 2021年6月六级听力冲刺训练(12) (1)A)Becausebothhavealimitedsupplyofair,water,andotherresources.B)BecausetheEarthmovesaroundthesunasfastasaspaceship.C)Becausewecantraveltoouterspace.D)BecausetheEarthneverstopsmoving.(2)A)About80milespersecond.B)About70milespersecond.C)About18milesp0ersecond.D)About17milespersecond.(3)A)BecausetheEarthisheavilypolluted.B)Becausenaturecannotrecycleitsresources.C)BecausetherearemoreandmorepeoplelivingontheEarth.D)Becausenomorenewresourcescanbeadded.(4)A)Naturehaschangedourenvironmentovertheyears.B)Wemustavoidwastingresourcesandpollutingourenvironment.C)Ourresourcesarenearlyusedup.D)Tripstootherplanetswillhelpeliminatepollution.答案:ACDBPassageThreeInaway,allofusareonaspaceship-theplanetEarth.Wemovearoundthesunat18milespersecondandneverstop.Onourspaceship,wehave5billionpeopleandlimitedsupplyofair,waterandland.Thesesupplieshavetobeusedcarefullybecausewecan'tbuynewair,waterorlandfromanywhereelse.Environmentonourplanetisaclosedsystem.Nothingnewiseveradded.Naturerecyclesitsresources.Water,forexample,evaporatesandrisesasvisibledropstoformclouds.Thesamewaterreturnstotheearthasrainorsnow.Therainthatfallstodayisactuallythesamewaterthatfellontheland70millionyearsago.Today,theearthisintrouble.Factoriespourdirtywaterintoourrivers,manyfishdieandwaterbecomesunhealthyforpeopletodrink.Carsandfactoriesputpoisonsintotheairandcauseplants,animalsandpeopletogetsick.Peoplethrowbottlesandpaperoutoftheircarwindowsandroadsidebecomescoveredwithallsortsofwastes.Overtheyearspeoplehavechangedenvironmentandwehavepollution.Tocontinuetosurvive,wemustlearnhowtousetheearthresourceswisely.Wehavetochangeourhabitsandstopdroppingsuchenormousamountsofindustrialwasteintothewaterandair.Wemustcooperatewithnatureandlearnbetterwaystouse,notabuseourenvironment.Questions17to20arebasedonthepassageyouhavejustheard.17.Whydoesthespeakercomparetheearthtoaspaceship?18.HowfastdoestheplanetEarthtravelaroundthesun?19.Whydoesthespeakeradviseustouseth

王子****青蛙
实名认证
内容提供者


最近下载