A. 　　Theworldisnothungry,butitisthirsty.Itseemsstrangethatnearly3/4oftheearthiscoveredwithwaterwhilewesayweareshortof(短缺)water.Why?Becauseabout97%ofwaterontheearthisseawaterwhichwecan'tdrinkoruseforwateringplantsdirectly(直接地).Mancanonlydrinkandusethe3%-thewaterthatcomesfromriversandlakes.Andwecan'tevenuseallofthat,becausesomeofithasbeenpolluted(污染). 　　Nowmorewaterisneeded.Theproblemis:Canweavoid(避免)aseriouswatershortagelateron?First,weshouldalllearnhowtosavewater.Secondly,weshouldfindoutthewaystoreuseit.Scientistshavealwaysbeenmakingstudiesinthefield.Today,inmostlargecitieswaterisusedonlyonceandthenrunstotheseaorrivers.Butitcanbeusedagain.Evenif(即使)everylargecityreuseditswater,stilltherewouldnotbeenough.Whatcouldpeopleturntonext? 　　Theseaseemstohavethebestanswer.Thereisalotofwaterinthesea.Allthatneedstobedoneistogetthesaltoutoftheseawater.Thisisexpensive,butit'salreadyusedinmanypartsoftheworld.Scientistsaretryingtofindacheaperwayofdoingit.Soyousee,ifwecanfindawayout,we'llbeinnodangerofdryingup. 　　1.Theworldisthirstybecause________. 　　A.3/4oftheearthiscoveredwithwater 　　B.wehaveenoughseawatertousedirectly 　　C.wehaven'tusedallthewaterinriversandlakes 　　D.about97%ofwaterontheearthcan'tbedrunkorusedforwateringplantsdirectly 　　2.Whichofthefollowingistrue? 　　A.3%ofwaterontheearthisinriversandlakes. 　　B.75%ofwaterontheearthisthesea. 　　C.97%oftheearthiscoveredwithwater. 　　D.3%ofwaterontheearthisseawater. 　　3.Fromthepassagewelearn_________. 　　A.ifeverycityreusesitswater,we'llbeinnodangerofdryingup 　　B.mancanonlydrinkanduseabout25%ofwaterontheearth 　　C.todayinmostlargecitieswaterisusedonlyonce 　　D.watercanbeusedonlyonce 　　4.Toavoidtheseriouswatershortage,whichofthefollowingisthemostimportant? 　　A.Savewaterandtrytomakegooduseofthewaterinriversandlakes. 　　B.Don'tpollutewaterandkeepallriversandlakesclean. 　　C.Makedirtywatercleanandthenreuseit. 　　D.Trytofindacheaperwaytogetthesaltoutoftheseawater. 　　5.Thenameofthepassagewouldbe________ 　　A.TheSeaWaterB.HowtoSaveWater 　　C.TheThirstyWorldD.ThePollutedWater 　　B. 　　VisitorstoLondonofteneatinrestaurants.Theownersandworkersinthemareallfromothercountries.Thevisitorssayintheserestaurantstheydon'tfeeltheyareinEngland.MostofEnglishpeopleeatathomeasmuchastheycan.Sometimestheythemselveswillthinktheyareinanothercountrywhentheyareinrestaurants.WhenanEnglishmangoesoutofarestaurant,hemayfindthathedoesn'tunderstandwhyeverythingiswritteninFrenchandItalian. 　　MostofEnglishpeoplethinkitisbettertoeatathome,becauseitischeaper.Theydon'twanttospendmuchmoneyonfoodandtheylikecookingathome.Theylikefastfood.ButforChristmas,theywillspendtwoorthreeweekstogetreadyforit,becausetheywanttohavegoodfood. 　　6.VisitorstoLondonofteneatinrestaurantsbecause_________. 　　A.theydon'tlikethefoodathomeB.theirhomesarenotinLondon