2018版高中英语（人教版）选修6同步练习题：Unit 4　Global warming 单元综合测评.doc

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1、单元综合测评(时间：100分钟；满分：120分)Ⅰ.阅读理解(共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。AAfewweeksagoagroupofscientistsproducedareportaboutglobalwarmingandthenaturalworld.Theywantedtofindoutifglobalwarmingwasdangerousforplantsandanimals.Thescientistsweresurprisedby

2、whattheyfound.Theysawthatduringthenext50yearsabout25%oflandanimalsandplantswilldisappearfromtheearth.Morethan1millionplantsandanimalspecieswilldieoutby2050.Theheadoftheresearchteam，ChristThomas，whoisaprofessorofconservationbiologyatLeedsUniversity，saidtheresult

3、softheirresearchwerefrightening.Morethan10%ofallplantsandanimalswilldisappearfromtheearth.Itistoolatetosavemanyplantsandanimalsbecauseofthegreenhousegasesthatarealreadyintheatmosphere.Butthescientistssayifwecontrolgreenhousegasesnow，wecansavemanymoreplantsandan

4、imalsfromdisappearing.Thescientistsstudiedsomeareasoftheworldwithveryrichbiology.TheseareaswereEurope，Australia，CentralandSouthAmerica，andSouthAfrica.Theirstudiesshowedthatspecieslivinginmountainousareashadabetterchanceofsurvivalbecausetheycouldmoveuphilltogetc

5、ooler.Inflatareas，suchasdeserts，plantsandanimalswouldhavetomoveverylongdistancestogetcooler，sotheyareingreatdangerofdyingout.Thescientistsfoundmanysurprisingthings.Forexample，theyfoundthathalfofthe24speciesofbutterflytheystudiedinAustraliawouldsoondisappear.【语篇

6、解读】　本文是一篇记叙文。作者通过一组科学家所作的报告推测在不久的将来，温室气体量的增加对动植物物种有毁灭性的影响。由于全球变暖，动植物的生存空间也在发生改变，其数量和种类也在不断减少。作者试图通过分析现状唤起人们对环境保护的意识。1．Accordingtothispassage，globalwarmingcanbebestdescribedas________tomanyplantsandanimals.A．deadlyB．surprisingC．disappointingD．frightening【解析】　推理判

7、断题。尽管B、D两项分别在第三段和第二段中出现，但surprising是用来描述科学家在澳大利亚发现24个蝴蝶物种的一半将消失时的心情的，而frightening则用来描述科学家得到研究结果时的心情。根据文章大意可知，全球变暖带来的是动植物物种的不断减少，这种影响对动植物来说是致命的。【答案】　A2．What'sthepurposeoftheresearchledbyChristThomas?A．Toprotectanimalsandplantsfromglobalwarming.B．Tocallonpeopleto

8、controlgreenhousegases.C．Towarnusofthedyingoutofmanyanimalsandplants.D．Tostudytheeffectofglobalwarmingonanimalsandplants.【解析】　由文章第一段第二句可知这项研究的目的。【答案】　D3．Whatcanbethebesttitl