热点05 疫苗的作用及其研发等原卷版备战中考英语考前时事热点话题阅读+题型专练.docx

热点05 疫苗的作用及其研发等原卷版备战中考英语考前时事热点话题阅读+题型专练.docx

《热点05 疫苗的作用及其研发等原卷版备战中考英语考前时事热点话题阅读+题型专练.docx》由会员分享，可在线阅读，更多相关《热点05 疫苗的作用及其研发等原卷版备战中考英语考前时事热点话题阅读+题型专练.docx（9页珍藏版）》请在冰豆网上搜索。

热点05疫苗的作用及其研发等原卷版备战中考英语考前时事热点话题阅读+题型专练

备战2021年中考英语考前时事热点话题阅读+题型专练

热点05疫苗的作用及其研发等

一、阅读理解

1

Scientistsaroundtheworldareracingtocreateandtestvaccines（疫苗）tohelpprotectpeopleagainstthenovelcoronavirus（新冠病毒）.Theyaremakingprogress,butitwillbequiteawhilebeforeanyvaccinesareready.

Therearemanydifferentwaystomakevaccines.Atleast115differentvaccinesforthenovelcoronavirusarebeingdevelopedaroundtheworldrightnow.Manyofthemmaynotworkormayhavesideeffectsthatcanbedangerous.Thatiswhytestingisveryimportant.

Beforeavaccineisevertestedonhumans,it'sfirsttestedonanimalstomakesureitseemssafe.Testingthevaccineonhumansisdoneinseveraldifferentphases（阶段）.InPhase1,asmallgroupofpeoplearegivensmallamountsofthevaccinetoseeifithasanybadeffects.Phase2stillteststhevaccine’ssafety,butit'smainlyatesttoseeifthevaccineseemstowork,IfPhase2goeswell,thevaccinecanbeginPhase3.DuringPhase3,thevaccineistriedonamuchlargergroupofpeopletoseehowwellitworks.

Becauseoftheseriousandworldwideimpact（影响）ofthenovelcoronavirus,thereishugepressuretodevelopaworkingvaccinequickly.Itnormallytakessevenormoreyearstodevelopasafevaccinethatworkswell.Nowdrugcompaniesarehopingtocreateworkingvaccinesin12or18months.

Buthealthexpertsalsowarnthatrushingtoomuchcouldbedangerous.Avaccinewithharmfuleffectscouldcausemoreproblemsthanitsolves.

1.Accordingtothepassage,thescientistswhoaremakingvaccinesare____________.

A.hard-workingandcarefulB.patientandeasy-goingC.kindandcuriousD.caringandbrave

2.Howlongdoesittaketocreateworkingvaccinesintheusualway?

A.Lessthansixyears.B.Morethantenyears.

C.Twelvetoeighteenmonths.D.Aboutsevenyears.

3.WhichofthefollowingisTRUE?

A.Thereareonlythreephasesintestingvaccines.

B.Workingvaccinesmustbecreatedinashorttime.

C.Vaccineshavealreadybeendeveloped.

D.Rushingtooquicklyincreatingvaccinesmaybringmoreproblems.

4.What'sthebesttitleofthepassage?

A.RushforaVaccineB.FightagainsttheDisease

C.ProtectPeopleagainsttheVirusD.CreateWorkingVaccines

2

Itisacoldanddrywintermorning.Whenyouwakeup，youfeelthatyourthroathurts.Youbegintosneezeandlateryoumaycough.Youmusthaveacold!

Waitamoment.Coulditjustbeacommoncoldortheflu（流感）that’sbeengoingaround?

Acoldgivesyouarunnynoseandcough.Butit’susuallyeasytodealwith.Sometakemedicinewhileothersdrinkherbalteaorchickensoup.Usuallyyoufeelbetterafteraweek.

Ontheotherhand，theflucanbemuchmoredangerous.Itusuallygivesyoufever.Sometimesitcancausedeath.AccordingtoanAmericanmagazine，theworstflukilledabout50millionpeoplefrom1918to1919.

Don’tworry.Ifyougetafluvaccine（疫苗），itcanstopyoufromgettingthevirus.Fluvaccinesworkbygivingthebodyasmallnumberoffluviruses.Thiscausesyourbodytodevelopantibodies（抗体）.Sonexttimeyougettheflu，theantibodiesshouldhelpyou.

Thefluviruschangeseveryfewyears.Therefore，therearesomanytypesofflu，suchasHINIandH5Nl.Theantibodiesforonetypeofflucan’thelpusagainstalltypesofflu.That’swhyweneedtogetthevaccineeveryyear.

However，goodhealthhabitsmayalsohelpstopyoudevelopingacoldorflu.Washingyourhandsoftenhelpsstopyoufromgettingviruses.Itisalsoimportanttogetregularexerciseandeathealthyfood.Allthesecanhelpyoustrengthenyourimmunesystem（增强免疫系统）.

5.Ifyouhaveacommoncold，usuallyyou’llfeelbetterafter.

A.aweekB.twoweeks

C.tendaysD.twentydays

6.Accordingtothepassage，whichisTrueoftheflu?

A.Itfirsthappenedinl919.

B.Itusuallydoesn’tgiveyoufever.

C.Itiseasytodealwith.

D.Itcankillpeoplesometimes.

7.Weneedtogetafluvaccineeveryyearbecause.

A.weprobablyhaveacoldinwinter

B.thefluviruschangeseveryfewyears

C.thefluisverydangerous

D.youdon’tneedtotakeanymedicineafterthat

8.ThefollowingwayscanhelpstopthefluEXCEPT.

A.stayingindoors

B.gettingregularexercise

C.eatinghealthyfood

D.washingourhandsoften

3

SincetheoutbreakofthenovelcoronavirusbeganinWuhaninDec2019,Chinahasmobilized（调动）thepowerofthewholecountry.Now,epidemic（疫情）controlandpreventioneffortsarestartingtotakeeffect.

AccordingtoakeymeetingheldonFeb21,thespreadoftheepidemicisbeingcontained.OnFeb24,mainlandareasoutsideofHubeireportedninenewinfections（感染）,thefirstsingle—digit（个位数）increaseinweeks,accordingtotheNationalHealthCommission.

Vaccine（疫苗）developmentisalsoprogressing.Somevaccineshavebeentestedonanimals,accordingtotheMinistryofScienceandTechnology.“Ifvaccinedevelopmentiscomparedtobuildingahouse,wehavelaidthefoundation（地基）andthebuildingisstartingtoemerge（出现）fromtheground,”ZengYixin,deputydirectoroftheNationalHealthCommission,saidtoChinaDaily.

However,theturningpointoftheepidemicisyettocome.Aftermillionsofpeoplereturntoworkinmajorcities,thenumberofnewinfectionsshouldbekeptlowfortwoweeks.ThisisexpectedtobeaturningpointinChina,accordingtotheShanghaiInstitutesforInternationalStudies.ButthesituationinHubeiisstillserious.

ThesituationoutsideofChinaisconcerning.Asof4pmonFeb27,thetotalnumberofconfirmed（确诊）infectionsinSouthKoreahadrisento1,766,Xinhuareported.Italyhadreported470confirmedcasesasofFeb26,aswellas12deaths.Singapore,JapanandIranhavealsofoundcases.

“Thewindowofopportunity（thebesttimetocontaintheoutbreak）maybeclosing,”saidWHODirector—GeneralTedrosAdhanomGhebreyesus.Hecalledontheinternationalcommunitytoactquicklytocontroltheepidemicbeforethewindowclosescompletely.

9.HowmanynewinfectionswerereportedinmainlandareasoutsideofHubeionFeb24?

A.0B.9C.12D.470

10.Whatisthelatestnewsaboutvaccinedevelopment,accordingtothepassage?

A.Aspecialhospitalisbeingbuilttodevelopvaccines.

B.Someofthevaccineshavestartedtotakeeffect.

C.Scientistsstillneedtofigureouthowvaccineswork.

D.Scientistshavestartedtotestsomevaccinesonanimals.

11.Theunderlinedphrases“yettocome”inthe4thparagraphmeans________.

A.已经到来B.即将到来C.尚未到来D.不会到来

12.Thelasttwoparagraphstellusthat________..

A.Africancountriesarenotaffectedbytheepidemic

B.wehavemissedthebesttimetocontroltheepidemic

C.thevirusappearstobemoredangerousoutsideofChina

D.immediateactionisneededgloballytocontroltheepidemic

13.Whatcanweinferfromthestory?

A.Chinaisnolongerthecenteroftheepidemic.

B.TheturningpointinHubeiwillcomeintwoweeks.

C.Itisstillnottimeforustolowerourguard.

D.Newhospitalswillbebuiltinothercountries.

3

_________

ThreeCOVID-19vaccines（疫苗）haveenteredphaseIIclinicaltrials（临床试验）inBeijing,saidahealthofficialonSunday.

XuQiang,headoftheBeijingMunicipalScienceandTechnologyCommission,saidthatBeijinghasarranged21scienceandtechnologyprojectsinresponsetothenovelcoronavirusepidemic.Fiveinnovativedrugshavebeenapproved（批准）forclinicaltrials,andallofthemhaveenteredphaseIIclinicalstudies,hesaidataroutinepressconferenceonCOVID-19preventionandcontrol.

Shanghaischools

Shanghai’spublickindergartenswillreopenonJune2,alsofirst,secondandthird-gradersofelementaryschoolsinthecitywillreturntoschoolonthesamedayastheepidemicwanes.

Thejuniorstudentscanchoosetocontinuetheironlineeducationathomeifnecessary,whichwilllasttilltheendofthissemester.FromJune2,privatekindergartensinShanghaicandecidetheirowntimetoresumeclassesaftergettingapproval.

Onlinelearning

ChinesehighschoolstudentshavethemostpositiveattitudetowardonlinelearningcomparedwiththoseintheUnitedStates,JapanandtheRepublicofKorea,areportreleasedbyChinaYouthDailyhasfound.

Thereportshowedthatmostofthesurveyedstudentsinthefourcountriesembraceonlinelearning.Atotalof87.1percentofChinesestudentssaid“onlinelearningisimportant,”while91.2percentfound“onlinelearningisinteresting,”higherthanthatofanyoftheotherthreecountries.Morethan94percentofChinesehighschoolstudentsbelieveonlinelearningcanexpand（扩大）theirscopeofknowledge,while86.8percentbelievetheycanlearnfromfirst-classteachersviatheInternet,accordingtothereport.

14.Choosethebestsubheading（小标题）toputintheblank.

A.VirusvaccinesB.Pressconference

C.ClinicalstudiesD.COVID-19

15.Whatdoestheunderlinedword“wane”mean?

A.killB.appearC.becomeweakerD.destroy

16.Whichsentenceiscorrectaccordingtothepassage?

A.

Thejuniorstudentshavenochoicebuttoreturntoschool.

B.5COVID-19drugshaveenteredphaseIIclinicalstudies.

C.Chineseprimaryschoolstudentshaveapositiveattitudetowardsonlinelearning.

D.Morethan90percentofChinesestudentssaidonlinelearningisimportant.

17.Whatcanyouinferaccordingtothepassage?

A.TheonlinecoursesinShanghaiwillnotenduntiltheendofthisterm.

B.Chinesehighschoolstudentsdon'tlikeonlinelearning.

C.ChinahasnotachievedanysuccessinthedevelopmentofCOVID-19vaccine.

D.StudentsinprivatekindergartensinShanghaimayreturntoschoolinJune.

4

Sometimesvaccines（疫苗）donotprovidelifetimeimmunity（免疫）.Someareonlyeffective（有效）foralimitedamountoftime.In