现代大学英语精读(第二版)Unit-5-课后手打答案

Unit51distributewealth4refine/extractoil7squandermoneywetlands10drain/removesewagemeetthedemands2不明智的补救方法5饥荒，瘟疫与大规模移民7大澡盆，电淋浴与抽水马桶10物质不灭定律／质量守恒12供不应求，超过需求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