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高一英语A.IfyoutravelbyairacrossthecenterofAfricaorSouthAmerica,youflyoverforestsforthousandsofkilometers.Thesegreatforestsaretheoceansoftrees.Therearefullofthousandsandthousandsofdifferentkindsofplantsandanimals.However,theworld’sforestsaregettingsmallerallthetime.Wearecuttingdownthetreesbecauseweneedwood,andweneedmorefarmland.Somepeoplesaythattherewillnotbeanyforestslikethesein20or30years.Whatwillhappeniftheydisappear?Ifwecutdownourforests,alotofplantsandanimalswilldisappearfromtheworld.Inalotofplacesthenewfarmlandwillsoonlookliketheolddeserts.Cropswillnotgrowthere.Itwillnotrainveryoften,andtheweatherwillgetveryhot.Perhapstheclimateoftheworldwillchange.Thiswillbedangerousforeveryoneintheworld.Thatiswhywemusttakecareofourforests.1.Thepassagemainlytellsusabout____.A.theimportanceoftakingcareofourplantsB.theresultofcuttingdownthetreesC.thelocationsofgreatforestsD.thereasonsforformingthedeserts2.Whichofthefollowingistrueaccordingtothepassage?A.AfricaandSouthAmericaaretheoceansoftrees.B.Forestsarehomesfordifferentkindsofanimals.C.ForestsareusuallyseveralsquarekilometerslargeD.Differentplantscan'tbefoundinthesameforest.3.Theneedformorewoodandmorelandresultsin____.A.thechangeoftheworldclimateB.thedisappearanceofmanyplantsandanimalsC.moredesertsandlessfarmland.D.alloftheabove4.Whatwillhappenin20or30yearsinsomepeople'sview?A.We'llhavemoreandgreaterforests.B.We'llhaveenoughlandtosupportourpeople.C.We'llhavenoforestslikethoseinthecenterofAfrica.D.We'llhaveenoughwoodtodosomecooking.5.Thewriterthinks____.A.itdangerousforeveryonetocutdowntheforestsB.itnecessaryforeveryonetoprotecttheforestsC.itimportantforeveryonetotakecareoftheworldD.itimportantforeveryonetokeepanimalsBAtravelerhurrieddowntothehallofanAmericanhotelandwenttothecash-desk.Hehadjust15minutestopayhisbillandgettothestation.Suddenlyherememberedthathehadleftsomethinginhisroom."Lookhere,boy,“hesaidtothebellboy,"runuptomyroomandseeifIhaveleftaparcelonthetablethere.Bequickaboutit.”Theboyranupstairs.Fiveminutespassed.Thetr