Adesertisaverydrylandwherethereishardlyanyrain.Inthedayitcanbesohotthatyoucouldfryaneggontheground.Butduringthenightitissometimessocouldthatwaterwouldturnintoice.Manydessertsarecoveredinsa

　　Adesertisaverydrylandwherethereishardlyanyrain.Inthedayitcanbesohotthatyoucouldfryaneggontheground.Butduringthenightitissometimessocouldthatwaterwouldturnintoice.

　　Manydessertsarecoveredinsand.Butsomehavemountainsrocksorlakesthathavedriedupintheheat.TheGreatAmericanDesserthascliffs(悬崖)thathavebeenmadeintoamazingandbeautifulshapesbythewind.TheSaharaDesertinAfricaismostlysand.TheAustralianDeserthasredsand.

　　Sometimesitdoesnotrainforawholeyearinthedesert.Butthereiswaterdeepunderthegroundandsomeplantshaverootsthatgoverydeeptofindit.Otherplantshaverootsthatspreadout(延伸)alongwaysotheycansuckuptherainassoonasitfalls.

　　Onedesertplantisthecactuswhichhaslongspreadingroots.Thecactusstoreswaterinsideitshardskin.Thisskinprotectsitfromheatandcold.

　　Camelsareabitlikecactusplants!Theystorewatertoo—insidetheirbodies.Theyhavespecialfurwhichprotectsthemfromthesunduringthedayandkeepsthemwarmatnight.

　　Someotheranimalsliveindesertstoo.Theyhavetobeverygoodatseeingandhearingbecausemostofthemonlycomeoutatnight.Thisiswhymanydesertanimalshaveextrabigeyesorears.

　　Adesertfoxhasbiggerearsthananormalfor.Agerbilhashugeeyesothatitcanseeatnight.Itstayscoolinthedaybystayingundergroundlikemostdesertanimals.

　　Somepeopleliveinthedesertbuttheyalwaysmaketheirhomesnearanoasis.Anoasisiswherewatercomesfromanundergroundriver.Nearanoasispeoplecangrowlotsofplantsandkeepanimals.

　　Lifeishardinthedesertforpeopleanimalsandplants.Butdesertpeopleliketolivethere.

　　1.Adesertisverydrybecause__________.

　　A.itissandy B.thereissolittlerain

　　C.thewindisstrong D.thereisnowaterdeepundertheground

　　2.Whatdoestheunderlinedphrase"suckup"inparagraph3mean_________?

　　A.围堵 B.讨好 C.释放 D.吸收

　　3.Somedesertanimalshaveextrabigeyesorearsbecause__________.

　　A.thesunlightistoostrongintheday B.theyneedtoseeandhearwellatnight

　　C.itisverycoldatnigh D.theystorewate