2014高考英语阅读理解巩固练习（43）

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1、2014高考英语阅读理解巩固练习（43）及答案阅读理解Arainforestisanareacoveredbytalltreeswiththetotalhighrainfallspreadingquiteequallythroughtheyearandthetemperaturerarelydippingbelow16℃.Rainforestshaveagreateffectontheworldenvironmentbecausetheycantakeinheatfromthesunandadjusttheclimate.Withouttheforestcover,thesearea

2、swouldreflectmoreheatintotheatmosphere，warmingtherestoftheworld.Losingtherainforestsmayalsoinfluencewindandrainfallpatterns,potentiallycausingcertainnaturaldisastersallovertheworld.Inthepasthundredyears,humanshavebegundestroyingrainforestsinsearchofthreemajorresources(资源):landforcrops,woodforpa

3、perandotherproducts,landforraisingfarmanimals.Thisactionaffectstheenvironmentasawhole.Forexample，alotofcarbondioxide(二氧化碳)intheaircomesfromburningtherainforests.Peopleobviouslyhaveaneedfortheresourceswegainfromcuttingtreesbutwewillsuffermuchmorethanwewillbenefit.Therearetwomainreasonsforthis.Fi

4、rstly,whenpeoplecutdowntrees,generallytheycanonlyusethelandforayearortwo.Secondly,cuttinglargesectionsofrainforestsmayprovideagoodsupplyofwoodrightnow,butinthelongrunitactuallyreducestheworld’swoodsupply.Rainforestsareoftencalledtheworld’sdrugstore.Morethan25%ofthemedicinesweusetodaycomefrompla

5、ntsinrainforests.However,fewerthan1%ofrainforestplantshavebeenexaminedfortheirmedicalvalue.Itisextremelylikelythatourbestchancetocurediseasesliessomewhereintheworld’sshrinkingrainforests.【文章大意概括】　文章论述了热带雨林的重要作用以及对环境的影响。1、、Rainforestscanhelptoadjusttheclimatebecausethey________.A.reflectmoreheat

6、intotheatmosphereB.bringabouthighrainfallthroughouttheworldC.rarelycausethetemperaturetodroplowerthan16℃D.reducetheeffectofheatfromthesunontheearth【详解剖析】　因果判断题。由文章第一段内容可以得出答案。【最佳选项】　D2、、Whatdoestheword“this”underlinedinthethirdparagraphreferto?A.Wewilllosemuchmorethanwecangain.B.Humanshavebegun

7、destroyingrainforests.C.Peoplehaveastrongdesireforresources.D.Muchcarbondioxidecomesfromburningrainforests.【详解剖析】　由上下文内容可知，A项正确。【最佳选项】　A3、、Itcanbeinferredfromthetextthat________.A.wecangetenoughresourceswithoutrainforestsB.thereis