TPO24阅读 文本 题目 答案.pdf

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1、iBT-TPO之家ContentsTPO软件免费版下载..............................................................................................2LakeWater..............................................................................................................3QuestionsforPassage1...............................

2、...........................................................5Passage2:BreathingDuringSleep..........................................................................9QuestionsforPassage2........................................................................................11Passage3.Movinginto

3、Pueblos............................................................................15QuestionsforPassage3........................................................................................171iBT-TPO之家注：本文所有资料来源于网络。TPO软件免费版下载如需要TPO单机软件版本（非PPS，无需联网，听力图、文、音同步）可以到http://dl.dbank.com/c080pabu

4、a0免费下载试用版，另外TPO18软件免费使用下载地址：http://dl.dbank.com/c0q9yvdj3i2iBT-TPO之家LakeWater<1>◆Wheredoesthewaterinalakecomefrom,andhowdoeswaterleaveit?Waterentersalakefrominflowingrivers,fromunderwaterseepsandsprings,fromoverlandflowoffthesurroundingland,andfromrainfallingdirectlyonthelakesurface.Water

5、leavesalakeviaoutflowingrivers,bysoakingintothebedofthelake,andbyevaporation.[1]Somuch[/1]isobvious.<2>◆<3>◆<4>◆Thequestionsbecomemorecomplicatedwhenactualvolumesofwaterareconsidered:howmuchwaterentersandleavesbyeachroute?Discoveringtheinputsandoutputsofriversisamatterofmeasuringt

6、hedischargesofeveryinflowingandoutflowingstreamandriver.Thenexchangeswiththeatmospherearecalculatedbyfindingthedifferencebetweenthe[2]gains[/2]fromrain,asmeasured(ratherroughly)byramgauges,andthelossesbyevaporationmeasuredwithmodelsthatcorrectfortheothersourcesofwaterloss.Forthemajorityoflake

7、scertainlythosesurroundedbyforests,inputfromoverlandflowistoosmalltohaveanoticeableeffect.Changesinlakelevelnotexplainedbyriverflowsplusexchangeswiththeatmospheremustbeduetothenetdifferencebetweenwhatseepsintothelakefromthegroundwaterandwhatl