高中英语Unit 4 Exploring planets单元综合测评新人教版Word格式.docx
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高中英语Unit 4 Exploring planets单元综合测评新人教版Word格式.docx
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每小题2分,满分30分)
A
Plantsarefloweringfasterthanscientistspredicted(预测)inreactiontoclimatechange,whichcouldhavelongdamagingeffectsonfoodchainsandecosystems.
Globalwarmingishavingagreateffectonhundredsofplantandanimalspeciesaroundtheworld,changingsomelivingpatterns,scientistssay.
Increasedcarbondioxide(CO2)intheairfromburningcoalandoilcanhaveaneffectonhowplantsproduceoxygen,whilehighertemperaturesandchangeablerainfallpatternscanchangetheirpatternsofgrowth.
“Predictingspecies'
reactiontoclimatechangeisamajorchallengeinecology,”saidtheresearchersofseveralU.S.universities.Theysaidplantshadbeenthekeyobjectofstudybecausetheirreactiontoclimatechangecouldhaveaneffectonfoodchainsandecosystemservices.
Thestudy,publishedontheNaturewebsite,usesthefindingsfromplantlifecyclestudiesandexperimentsacrossfourcontinentsand1,634species.Itfoundthatsomeexperimentshadunderestimated(低估)thespeedoffloweringby8.5timesandleafingby4times.
“Acrossallspecies,theexperimentsunderpredictedthespeedoftheadvance-forbothleafingandflowering-thatresultsfromtemperatureincreases,”thestudysaid.
Thedesignoffutureexperimentsmayneedtobeimprovedtobetterpredicthowplantswillreacttoclimatechange,itsaid.
PlantsarenecessaryforlifeontheEarth.Theyarethebaseofthefoodchain,usingphotosynthesis(光合作用)toproducesugarfromcarbondioxideandwater.Theyletoutoxygenwhichisneededbynearlyeveryorganismontheplanet.
Scientistsbelievetheworld'
saveragetemperaturehasrisenbyabout0.8℃since1900,andnearly0.2℃everytenyearssince1979.
Sofar,effortstocutemissions(排放)ofplanetwarminggreenhousegasesarenotseenasenoughtopreventtheEarthheatingupbeyond2℃thiscentury-apointscientistssaywillbringthedangerofachangeableclimateinwhichweatherextremesarecommon,leadingtodrought,floods,cropfailuresandrisingsealevels.
【语篇解读】 本文为科普类文章。
文章论述了全球变暖的气候环境会让植物提前开花,进而影响整个食物链及生态系统。
1.WhatisthekeyinformationtheauthorwantstogiveinParagraph1?
A.Plants'
reactiontoweathercouldhavedamagingeffectsonecosystems.
B.Theincreasingspeedoffloweringisbeyondscientists'
expectation.
C.Climatechangeleadstothechangeoffoodproductionpatterns.
D.Foodchainshavebeenseriouslydamagedbecauseofweather.
【解析】 细节理解题。
第一段话给读者传达的主要信息存在于主句,而不是which所引导的定语从句上。
根据“Plantsarefloweringfasterthanscientistspredicted(预测)”可知,作者是要告知读者植物开花的增速超出了科学家的预期。
故选B。
A为次要信息。
【答案】 B
2.WecanlearnfromthestudypublishedontheNaturewebsitethat.
A.plants'
floweringis8.5timesfasterthanleafing
B.thereare1,634plantspeciesonthefourcontinents
C.scientistsshouldimprovethedesignoftheexperiments
D.theexperimentsfailedtopredicthowplantsreacttoclimatechange
第五段话“Itfoundthatsomeexperimentshadunderestimated(低估)thespeedoffloweringby8.5timesandleafingby4times.”暗示读者:
对于植物所设计的实验应该有所改进,故答案选C。
【答案】 C
3.Scientistspayspecialattentiontothestudyofplantsbecause.
A.theycanprovetheclimatechangeclearly
B.theyareveryimportantinthefoodchains
C.theyplayaleadingroleinreducingglobalwarming
D.theyaregrowingandfloweringmuchfasterthanbefore
【解析】 推理判断题。
根据第四段“Theysaidplantshadbeenthekeyobjectofstudybecausetheirreactiontoclimatechangecouldhaveaneffectonfoodchainsandecosystemservices.”可知植物对气候变化的反应对整个食物链和生态系统都至关重要。
故答案选B。
4.Whatcanbeinferredfromthelasttwoparagraphsabouttheworld'
stemperature?
A.Ithasrisennearly0.2℃since1979.
B.Itschangewillleadtoweatherextremes.
C.Itis0.8℃higherin1979thanthatof1900.
D.Itneedstobecontrolledwithin2℃inthiscentury.
从倒数第二段“...hasrisenbyabout0.8℃since1900,andnearly0.2℃everytenyearssince1979.”可知A、C项错误;
从最后一段叙述可知,如果本世纪地球变暖超过2℃,便会出现weatherextremes。
暗示我们这个世纪地球温度的上升需要控制在2℃的范围之内。
故答案选D。
【答案】 D
B
(2015·
陕西高考)Theproductionofcoffeebeansisahuge,profitablebusiness,but,unfortunately,fullsunproductionistakingovertheindustryandbringingaboutalotofdamage.Thechangeinhowcoffeeisgrownfromshadegrownproductiontofullsunproductionendangerstheveryexistenceofcertainanimalsandbirds,andevendisturbstheworld'
secologicalbalance.
Onalocallevel,thedamageoftheforestrequiredbyfullsunfieldsaffectsthearea'
sbirdsandanimals.Theshadeoftheforesttreesprovidesahomeforbirdsandotherspecies(物种)thatdependonthetrees'
flowersandfruits.Fullsuncoffeegrowersdestroythisforesthome.Asaresult,manyspeciesarequicklydyingout.
Onamoregloballevel,thedestructionoftherainforestforfullsuncoffeefieldsalsothreatens(威胁)humanlife.Medicalresearchoftenmak
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