甘肃省会宁县第一中学2015-2016学年高二上学期期末考试英语试题Word版含答案.doc

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1、2015-2016第一学期高二质检英语试卷第一部分阅读理解（共两节，满分40分）第一节（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、D）中，选出最佳选项，并在答题卡上该项涂黑。（A）Eatingtoomuchfattyfood,exercisingtoolittleandsmokingcanraiseyourfutureriskofheartdisease.Butthereisanotherfactorthatcancauseyourheartproblemsmoreimmediately:th

2、eairyoubreathe.Previousstudieshavelinkedhighexposure(暴露）toenvironmentalpollutiontoanincreasedriskofheartproblem,buttwoanalysesnowshowthatpoorairqualitycanleadtoheartattackorstroke(中风）withinaslittleasafewhoursafterexposure.Inonereviewoftheresearch,scientistsfoundthatpeop

3、leexposedtohighlevelsofpollutants(污染物）wereupto5%morelikelytosufferaheartattackwithindaysofexposurethanthosewithlowerexposure.AseparatestudyofstrokepatientsshowedthatevenairthattheU.S.EnvironmentalProtectionAgency(EPA)considerstobeof“moderate”(良好）qualityandrelativelysafe

4、forourhealthcanraisetheriskofstrokeasmuchas34%within12to14hoursofexposure.Theauthorsofbothstudiesstressthattheserisksarerelativelysmallforhealthypeopleandcertainlymodestcomparedwithotherriskfactorssuchassmokingandhighbloodpressure.However,itisimportanttobeawareoftheseda

5、ngersbecauseeveryoneisexposedtoairpollutionregardlessoflifestylechoices.SostricterregulationbytheEPAofpollutantsmaynotonlyimproveenvironmentalairqualitybutcouldalsobecomenecessarytoprotectpublichealth.21.Thetextmainlydiscussestherelationshipbetween______.A.heartproblems

6、andairqualityB.heartproblemsandexercisingC.heartproblemsandsmokingD.heartproblemsandfattyfood22.Theunderlinedword“modest”inParagraph3mostprobablymeans______.A.relativelyhighB.extremelylowC.relativelylowD.extremelyhigh23.Theauthor’spurposeofwritingthetextismostlikelyto__

7、_____.A.describeB.persuadeC.informD.entertain（B）Desertsarefoundwherethereislittlerainfallorwhererainforawholeyearfallsinonlyafewweeks'time.Teninchesofrainmaybeenoughformanyplantstosurvive(存活)iftherainisspreadthroughouttheyear,Ifitfallswithinoneortwomonthsandtherestofthe

8、yearisdry,thoseplantsmaydieandadesertmayform.Sandbeginsastinypiecesofrockthatgetsmallerandsmalleraswindandweat