成都外国语学校2019-2020年下学期开学考试高二英语试卷注意事项：1.本试卷分第I卷（选择题）和第II卷（非选择题）两部分。2.本堂考试120分钟，满分150分。3.答题前，考生务必先将自己的姓名、考号准确无误地填写在答题卡规定的位置上，并使用2B铅笔填涂。4.考试结束后，将答题卡交回，答题卡不得折叠。第I卷（选择题共70分）第一部分阅读理解（共两节，满分40分）(共15小题；每小题2分，满分30分)ACoronaviruses(冠状病毒)Coronaviruses(冠状病毒)arealargegroupofviruses.Theyconsistofacoreofgeneticmaterial（遗传物质）surroundedbyanenvelopewithproteinspikes(蛋白棘突).Thisgivesittheappearanceofacrown.CrowninLatiniscalled“corona”andthat’showthesevirusesgettheirname.Inthistext,we’lltakeaquicklookatwhat’scurrentlyknownaboutthevirus.Covid-2019The2019NovelCoronaviruswasfirstreportedDecemberinWuhan,centralChina'sHubeiProvince,hasquicklyspreadacrossthecountryandaroundtheworld.Itinitiallyoccurredinagroupofpeoplewithpneumonia(肺炎)who’dbeenassociatedwithaseafoodandliveanimalmarketinthecityofWuhan.Intermediatehosts:The2019-nCoVmayoriginateinbats,ateamledbyrenownedChinesevirologistShiZhenglisaidearlier,whiletheintermediaryhostremainsunknown.Incubationperiod(潜伏期):1-14days.Infection:Virusmayspreadbeforesymptomsshow.SARS-CoVTheSevereAcuteRespiratorySyndrome(SARS)coronaviruswasfirstidentifiedinChinain2003.Intermediatehosts:Batsaretheoriginalhost.Civetcatsandcatsserveasanimportantintermediarythatcarriesvirusfromthewingedmammaltohumans.Incubationperiod:2-7days.Infection:Virusspreadaftersymptomsshow.MERS-CoVTheMiddleEastRespiratorySyndrome(MERS中东呼吸综合征)coronavirusthatwasfirstidentifiedinSaudiArabia(沙特阿拉伯)in2012.Intermediatehosts:Batsaretheoriginalhost.MERS-CoVwastravelledfromdromedarycameltohumans.Incubationperiod:2-14days.Infection:Virusmayspreadbeforesymptomsshow.1.WhatistheintermediatehostsoftheCovid-2019?A.Bats.B.Civetcats.C.Camel.D.Unknownyet2.Whichkindsofcoronavirusesmayspreadbeforesymptomsshow?A.TheCovid-2019B.SARS-CoVC.TheCovid-2019andMERS-CoVD.MERS-CoV3.Whatisthefollowingstatementisnottrueaboutcoronaviruses?A.TheCovid-2019,SARS-CoVandMERS-CoVareallincludedincoronaviruses.B.TheanimalreservoiroftheCovid-2019isbats.C.Amysteriouspneumoniaoutbreakwasfirstide