現(xiàn)代大學(xué)英語精讀(第二版)Unit-5-課后手打答案

Unit51distributewealth4refine/extractoil7squandermoneywetlands10drain/removesewagemeetthedemands2不明智的補(bǔ)救方法5饑荒，瘟疫與大規(guī)模移民7大澡盆，電淋浴與抽水馬桶10物質(zhì)不滅定律／質(zhì)量守恒12供不應(yīng)求，超過需求3Replacedisastersdemands3desalinate,expensive,requireselaborate/sophisticatedapparatus4famines,pestilence,sweeptheglobe5overblown,remedies,ill-conceived,isboundto/is6routine,frequentlyequilibrium8perforated,aquifers,falling,glaciers,vanishing,4Translatetrillioncubicmetersofwaterresource,secondonlytoBrazil,RussiaandCanada,beupdated)intheworld.Butwhendividedby1.3billion,ouraverageper-capitashareofwaterresourceonlyamountstoaboutonequarteroftheworld’saverage.2.Wehavealwaysbeenheavilyburdenwiththeproblemmedium-sizedcitiesnationwide,abouttwo-thirdsaresufferingfromacuteshortageofwater.Beijingiswater,evenitsundergroundwaterisdangerousItisreportedtohavedroppedby90meters.Somescholarssuggestwemoveourcapitaltosomeotherplace.Thisisofcourseunfeasible/unrealistic,butthemessageisclear.3.Ourwaterresourcesfirstofallarenotevenlycausingfloods,ortoolittle,causingdroughts.harnessingourrivers,lakes,andreservoirs.Soilerosionanddesertificationareincreasinglythreateningoureconomyandpeople’slife.ManyofYellowRiverfailedtohaveenoughwatertoflowto5.Traditionally,ourwaterresourceshavemainlybeenusedtoirrigatelandbut,inrecentyears,demandsonwaterforindustrialanddomesticusehavealsobeensharplyontherise.Theyhaveseriousoutgrownsupplies.6.Todayourscarcewaterresourcesarebecomingevenscarcerbecausealotofwaterisbeingwastedoncapaciouspowershowers,flushlavatories,andgolfrinks.Moreover,alotofwaterbeingpolluted.7.Thesetworiversbothhavetheirheadwaterinthecountry.Itthereforepotentialseriousdisputebetweenthetwocountries.8.Inrecentyears,wehavepinnedgreathopesontheprobleminthesouthandthednorth.Buttherearescholarswhoseopinionsdiffer.cannotbetakenforgranted.1withbettermedicalcare,mygrandfathercouldhave3Furtherdelaywouldcauseusevengreaterloss.4.Butfortheseatbelt,shewouldhavebeenseverelyinjuredintheacctident.5Amanwithoutastrongsenseofjusticewouldn’thavebroughtthematterup.6Withoutanexperiencedguidelikeher,wemighthavebeentrappedinthejungle.7Iwonderhowmanyofuswouldhavedonehisposition8Withamoresophisticatedcomputer,wewouldhavecompletedtheprojectmuchsooner.9Withoutastrongwill,evenahealthynwouldn’thavereachedthetopoft