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