2014湖南英语高考答案（2018湖南郴州中考英语）

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AgainstthesuppositionthanforestfiresinAlaska,CanadaandSiberiawarmtheclimate,scientistshavediscoveredthatcoolingmayoccurinareaswhereburnttreesallowmoresnowtomirrormoresunlightintospace.

Thisfindingsuggeststhattakingstepstopreventnorthernforesttolimitthereleaseofgreenhousegasesmaywarmtheclimateinnorthernregions.Usuallylargefiresdestroyedforestsintheseareasoverthepastdecade.Scientistspredictthatwithclimatewarming,firesmayoccurmorefrequentlyovernextseveralcenturiesasresultofalongerfireseason.Sunlighttakeninbytheearthtendstocausewarming,whileheatmirroredbackintospacetendstocausecooling.

Thisisthefirststudytoanalyzeallaspectsofhownorthernfiresinfluenceclimate.Earlierstudiesbyotherscientistshavesuggestedthatfireinnorthernregionsspeedupclimatewarmingbecausegreenhousegasesfromburningtreesandplantsarereleasedintotheatmosphereandthustrapheat.

Scientistsfoundthatrightafterthefire,largeamountsofgreenhousegasesenteredtheatmosphereandcausedwarming.Ozone(臭氧)levelsincreased,andashfromthefirefellonfar-offseaice,darkeningthesurfaceandcausingmoreradiationfromthesuntobetakenin.Thefollowingspring,however,thelandwithintheareaofthefirewasbrighterthanbeforethefire,becausefewertreescoveredtheground.Snowonthegroundmirroredmoresunlightbackintospace,leadingtocooling.

―Weneedtofindoutallpossiblewaystoreducethegrowthofgreenhousegasesintheatmosphere.‖Scientiststrackedthechangeinamountofradiationenteringandleavingtheclimatesystemasaresultofthefire,andfoundameasurementcloselyrelatedtotheglobalairtemperature.Typically,fireinnorthernregionsoccursinthesameareaevery80to150years.Scientists,however,foundthatwhenfireoccursmorefrequently,moreradiationislostfromtheearthandcoolingresults.Specifically,theydeterminedwhenfirereturns20yearsearlierthanpredicated,0.5wattsper0.9wattspersquaremeterwillbesentbackintospace.Theneteffectiscooling.Wattsareusedtomeasuretherateatwhichenergyisgainedorlostfromtheearth.

1.Accordingtothenewfindings,takingstepstopreventnorthernforestfiresmay_______.

A.resultinawarmingclimate

B.causetheforestfirestooccurmorefrequently

C.leadtoalongerfireseason

D.protecttheforestsandtheenvironmentthere

【答案与解析】A根据第二段第一句Thisfindingsuggests??可知

2.ThefollowingarealltheimmediateeffectsafteraforestfireEXCEPT_________.

A.largeamountsofgreenhousegasesentertheatmosphere

B.thelevelsofozonewhichisatypeofoxygenincrease

C.snowonthegroundmirrorsmoresunlightbackintospace

D.ashesfromthefirefallontheicesurfaceandtakeinmoreradiationfromthesun

【答案与解析】C根据第四段可知

3.Earlierstudiesaboutnorthernforestfires_________.

A.analyzeallaspectsofhownorthernfiresinfluenceclimate

B.indicatethatforestfireswillpollutetheatmosphere

C.suggestthatpeopleshouldtakemeasurestoprotectenvironment

D.suggestthatthefireswillspeedupclimatewarming

【答案与解析】D根据第三段可知

4.Theunderlinedphrase―soakup‖inthelastparagraphmostprobablymeans________.

A.released

B.absorbed

C.created

D.distributed

【答案与解析】B根据??but0.9wattspersquaremeterwillbesentbackintospace可知soakup与sentback的意思相反

5.FromthepassagewecandrawaconclusionthatforestfiresinAlaska,CanadaandSiberiamay__________.

A.warmtheclimateasthesuppositiongoes

B.allowmoresnowtoreflectmoresunlightintospaceandthuscooltheclimate

C.destroylargeareasofforestsandpollutethefar-offseaice

D.helptogainmoreenergyratherthanreleasemoreenergy

【答案与解析】B根据第一段Againstthesupposition??scientistshavediscoveredthat??可知

高考英语试题分类小结篇：情态动词与虚拟语气

高考英语试题分类小结篇：代词

高考英语试题分类小结篇：名词与主谓一致

高考英语试题分类小结篇：冠词

高考英语试题分类小结篇：状语从句与并列句

高考英语试题分类小结篇：倒装强调与省略

高考英语试题分类小结篇：形容词与副词

高考英语试题分类小结篇：交际用语

高考英语试题分类小结篇：名词性从句

高考英语试题分类小结篇：状语从句

高考英语试题分类小结篇：介词

高考英语试题分类小结篇：非谓语动词

高考英语试题分类小结篇：动词与动词短语

高考英语试题分类小结篇：定语从句

高考英语试题分类小结篇：动词的时态和语态

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