《用百分?jǐn)?shù)看水的世界》storage-完整版課件

Group2LindseyHua(Leader),Richard,David,Jina,Jessica,JennyQuestionsMeandMyGroupHadtoAnswerWhatpercentagedoesthefreshwateravailabletakeupoftheworld’swaterreserve?Howmuchfreshwaterisavailableincubickilometer?

人類真正可采用的淡水占世界水儲量的百分之幾？人類真正可采用的淡水大約為多少立方千米？WhatpercentagedoesthefreshwateravailableinChinatakeupoftheoverallamountintheworld?HowmuchfreshwateravailableisthereinChinaincubickilometer?

中國可采用的淡水資源占世界水儲量的百分之幾？中國擁有多少立方千米可采用的淡水？ThetotalamountoffreshwaterinChinaishugebutitdoesn’tscatterevenlyintermsofthedistricts.PleasedescribethedistributionofthefreshwaterinChinabypercentage.Andthenshareyourthoughts.

中國的淡水資源總量較大，但地區(qū)分布不均。請用百分比描述中國淡水資源的地區(qū)分布，并談?wù)勀愕母惺?。PercentageofFreshwaterontheEarth

淡水資源占世界總水量的百分比2.5%97.5%PercentageofFreshwaterAvailable

可采用的淡水占淡水資源的百分比HowweCalculated…Whatpercentagedoesthefreshwateravailabletakeupoftheworld’swaterreserve?Howmuchfreshwaterisavailableincubickilometer?(Thetotalresourceoffreshwateris1400000000km3)人類真正可采用的淡水占世界水儲量的百分之幾？人類真正可采用的淡水大約為多少立方千米？（世界水儲量為1400000000立方千米）1400000000×2.5%×0.34%=119000(km3)WaterUsedinChinaoutofthe

FreshwaterAvailableontheEarth

中國的淡水資源占世界可采用淡水的百分比HowweCalculated…WhatpercentagedoesthefreshwateravailableinChinatakeupoftheoverallamountintheworld?HowmuchfreshwateravailableisthereinChinaincubickilometer?

中國可采用的淡水資源占世界水儲量的百分之幾？中國擁有多少立方千米可采用的淡水？Muchlessthanwhatwethink,right?1400000000×2.5%×0.34%=119000(km3)119000×6%=7140(km3)Citiesweareinterestedin…CitiesinChinaThewaterreserveinthecity(hundredmillion

km3)ThepercentagethewaterreserveinthecitytakingupofthatinChinaShanghai28000×0.09%=25.20.09%NanjingBeijingChengduHangzhou0.11%0.21%0