2018-2019学年度下期高二第一次质量检测英语试题注意事项：答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上，写在本试卷上无效。考试结束后，将本试卷和答题卡一并交回。第一部分听力（略）第二部分阅读理解(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A、B、C和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。ATeenswhoarechangingtheworldTeenagersare,infact,solvingtheproblemsoftodaywithgroundbreakinginventions.KeianaCavé,U.S.A.Thelargestoilslick(浮油)causedbytheoiloverflowoccurringintheGulfofMexicoin2010ledtobabydolphinsdyingatsixtimestheusualrate.WatchingthenewsonTV,Cavéfeltthattheremustbesomehiddenenvironmentaldamage.Agedjust15,shebeganstudyingwhathappenstooilwhenit'sleftontheocean’ssurface.Theteenagerdiscoveredthatwhenit’shitbyUVraysfromthesun,oilreactstoformchemicalswhichcausecancer.Cavéhasturnedherworkintotwopatentsformethodsofdetecting(发现)thedangerouschemicals.WangSunmingandLiJingpeng,ChinaRealizingtheextenttowhichbacteriaspreadonpublicdoorhandles,WangandLisoughtamaterial—titaniumoxide(钛白粉)—thatcouldadequatelykillbacteria.However,thechemicalisn’tveryeffectiveunlessexposedtoUVrays.Sincemostdoorhandlesareinsidebuildings—beyondthereachofUVraysfromthesun,WangandLiturnedtoLEDlightsandcreatedaLEDdoorhandle.Whenapersontouchesthehandle,theUVlightswitcheson,activating(使活跃)thetitaniumoxideonitandinstantlykilling99.8percentofthebacteriathatmightotherwisehavebeenspread.JulianRiosCantu,MexicoThisinventorwasjust13yearsoldwhenhismotherwasdiagnosed(诊断)withbreastcancer.Hewatchedinhorrorasthetumor(肿瘤)grewfromthesizeofagreenbeantothesizeofagolfball.Afterhismotherrecovered,Cantusetouttoprotectothersfromthedisease.Hedevelopedawearabledevicethatmaybeabletodetecttheearlysignsofbreastcancer.Iftheprojectsucceeds,itcansavemillionsoflives.WhydidCavébeginstudyingoilleftontheocean’ssurface?A.Totestheruniqueprediction.B.Topreventtheoiloverflowing.C.Toapplyforapatentonherinvention.D.Tofindthecauseofbabydolphins’deaths.22.Whatisspecialaboutthebacteria-killingdoorhandle?A.Thetitaniumoxideisanactivechemical.B.LEDl