内蒙古北京八中乌兰察布分校 高二英语下学期教学质量调研试题三 试题VIP专享VIP免费

内蒙古北京八中乌兰察布分校2018-2019学年高二英语下学期教学质量调研试题三分值：120分时间：100分钟）注意事项：1．答卷前，考生务必将自己的姓名、考号填写在答题卡上。2.将答案写在答题卡上。写在本试卷上无效。3.考试结束后，将答题卡交回。第I卷（选择题，共70分）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，从每小题所给的四个选项（A、B、C和D）中，选出最佳选项。ATomostofus,medicinecomesfromadrugstore.Butoriginally,muchofthemedicinedevelopedinthelastcenturycamefromnaturalsources:plantsorbacteria.Now,agroupofscientistsinGreatBritainarehopingtodevelopamedicinefrompoisonousinsects.Theyareresearchingwhetherthedeadlyvenom（毒液）ofsomeinsectscanworkagainstbacteria.VenomtechlaboratoryAbout400insectsliveinplasticcontainersintheVenomtechlaboratory.Eachcontainerhasanimageofaskullandcrossbones.Theimageswarnthatabitefromtheinsectsinsidecanbeanythingfrompainfultodeadly.Thevenomfromtheseinsectscontainshundredsofchemicalcomponents.Eachcomponenthasadifferenttargetandeffect.Medicalresearchersseparatethevenomintoitscomponentparts.Thentheycreatealibraryofthosecomponents,lookingfortheonesthatcouldbeturnedintonewdrugs.“Someofthemwefoundcankillbacteria,likeEColi,sothey’reveryrelevantatthemomentwheremodernmedicinesarefailing.Andwe’realsofindingvenomthatischangingandkillingcancercells.”Findingnewwaystokillbacteriaisimportanttoresearchers.Onereasonisthatpeoplehaveusedantibiotics(抗生素)somuchthatsomebacteriacannowresistit.Forexample,tuberculosisusedtobecurablewithantibiotics.Nowitisnot.Howdotheygetthevenomout?Togetasmuchvenomaspossible,researchersfeedtheinsectswellandthenputthemtosleeptemporarily.StevenTrimofVenomtechsaysresearchersanaesthetizetheinsectstomakeremovingthevenomsafer.Afterall,animmobileinsectcannotbite.Researchersthenelectricallystimulatetheinsecttocontract(收缩)themuscleandsqueezethegland(腺).Thepressureproducesasmallamountofvenom.Researchersseparatethevenomintohundredsofproteins.Eachproteincontainsbetweenoneandfivedifferentmolecules(分子).Someday,thosetinymoleculesmightbeturnedintopowerfulnewdrugs.1.Theskullandcrossbonesimagesinplasticcontainersareusedto____________.A.warnpeopleB.comfortpeopleC.frightenpeopleD.encouragepeople2.Whatdoestheunderlinedword“anaesthetize”probablymean?A.Tokillsomethingdangerous.B.Toremovesomethingharmful.C.Toprotectsomethingbeneficial.D.Tomakesomethingunconscious.3.Whatcanwelearnfromtheresearch?A.Tuberculosisiscurablewithantibiotics.B.Thevenomfromtheinsectscancurecancerdiseases.C.Someofthecomponentsfromvenomcankillbacteria.D.Thechemicalcomponentsfromvenomcanbeturnedintonewdrugs.4.Theresearchersgetvenomfrompoisonousinsectsby____________.A.makingthemsleepforsometimeB.squeezingtheglandcontainingantibioticsC.separatingthevenomintoproteinsD.stimulatingtheinsectstorelaxthemuscleBAwomanwaswalkingherdogalongabeachinNewZealandinlateJunewhenshesawsomethingthatlookedlikeawhiteballinthesand.ItturnedouttobeayoungEmperorPenguinthatwaslost.Athisage，heshouldhavebeenclosetotheAntarctic，swimmingforfishandplayingontheicefloes(冰川)．Butthispenguinstartedswimmingnorthandjustkeptgoing.ThepenguinattractedalotofattentioninNewZealand.Ithasbeen40yearssinceanEmperorPenguinwaslastseenthere.ResearchersattheDepartmentofConservationwerecalledin.Theydecidedtowatchthepenguinclosely，butnottodisturbitinanyway.ManyNewZealanderscametoPekaPekaBeachto...