高三英语课外阅读短文练习

PassagereadingcomprehensionI一Russia'sgovernmentsaysPresidentVladimirPutinisinself-isolation

afterseveralmembersofhisteambecameinfectedwithCOVID-19.GovernmentspokesmanDmitryPeskovtoldreportersTuesdaythatPutinhimselftested

negative

forCOVID-19andwas"absolutely

healthy."ButtheRussianleaderdecidedtoself-isolatebecausehehadbeeninclosecontactinrecentdayswithotherswhowereinfected.PeskovdidnotsayhowlongPutinwouldremaininself-isolation.Hedidnotnameanyoftheindividualsaroundthepresidentwhowereinfected,buthedidsaytherewereseveralcases.PeskovaddedthatPutin'sisolationwouldnotgreatlyaffecthiswork.HesaidthatwhilePutinwillnotholdin-personmeetings,thepresident"willcontinuehisactivityviavideoconferences."The68-year-oldPutinhashadtwoinjectionsofRussia'sSputnikVvaccine.Thepresidentexplainedthesituationatagovernmentmeetingbyvideoconference."It'sanaturalexperiment.Let'sseehowSputnikVworks

in

practice,"Putinsaid."Ihavequitehighlevelsofantibodies.Let'sseehowthatplaysoutinreallife.Ihopeeverythingwillbeasitshouldbe."PutinsaidthesituationforcedhimtocancelaplannedtriptoTajikistanthisweekforsecuritymeetingsexpectedtocenteronAfghanistan.Headdedthatheplannedtotakepartinthosemeetingsbyvideoconferenceinstead.GovernmentspokesmanDmitryPeskovreportersTuesdaythatPutinhimselftested

negative

forCOVID-19andwas"absolutely

healthy."Thepresidentexplainedthesituationatagovernmentmeetingvideoconference.PutinsaidthesituationhimtocancelaplannedtriptoTajikistanthisweekforsecuritymeetingsexpectedtocenteronAfghanistan.Referenceanswers:toldByforced 二WorldHealthOrganizationAfricadirectorMatshidisoMoetisaysthatAfricawillget25percentfewerCOVID-19vaccine

doses

thanexpectedbytheendof2021.HercommentstoreporterslastweekcameastheAfricaCentersforDiseaseControlandPreventionsaidjustover3percentofpeopleinAfricahavebeenfullyvaccinated.AfricanhealthofficialsweresurprisedbytheannouncementthattheCOVAXefforttogivevaccinestolow-andmiddle-incomecountriesisagainloweringitsdeliveryexpectations.TheUnitedNationsrunstheCOVAXplan,whichwasorganizedtomakecertainpoorercountriesgetthevaccine.Moetitoldreportersthattheannouncementwas"inpartbecauseofthe

prioritization

of

bilateral

dealsoverinternational

solidarity."MoetinotedthatcertainCOVAXdifficulties,suchasexportcontrolsonvaccinedosesandtheintroductionofboostershotsbysomecountries,arethereasonsforthe25percentreduction.Aboostershotisanextraamountofavaccinegiventoprovideaddedprotectionagainstadisease.MoetinotedthatCOVAXhasdeliveredover5millionvaccinedosestoAfricancountriesinSeptember.But,sheadded,"threetimesasmanydoseshavebeenthrownawayintheUnitedStatesalone"sinceMarch."Everydoseis

precious,"Moetisaid.Shesaidthatwealthycountrieshavepromisedtoshare1billiondosesworldwide,but,sofar,only120millionhavebeenreleased.TheUnitedNationstheCOVAXplan,whichwastomakecertainpoorercountriesgetthevaccine.Whatisanextraamountofavaccinegiventoprovideaddedprotectionagainstadisease?Whatdidshesaidaboutwealthycountries?Referenceanswers:runsorganizedAboostershot3.Shesaidthatwealthycountrieshavepromisedtoshare1billiondosesworldwide,but,sofar,only120millionhavebeenreleased.三SouthKoreanresearcherssaytheyhavedevelopedaskin-likematerialthatbehavesliketheskinofa

chameleon.Itcanchangecolorstolooklikeitssurroundings.TheteamwasledbyKoSeung-hwan,amechanicalengineeringprofessoratSeoulNationalUniversity.Theteamcreatedtheskinwithaspecialliquidthatturnscolorsindifferenttemperatures.Thesechangesarecontrolledby

flexible

heatersmadeofverysmallwires.Ifyouareinadesert,andyouwearforest-coloredclothing,youcaneasilybeseen,KotoldReutersnewsagency.Changingcolorsandformsactivelywithyoursurroundingsiscentraltothetechnology,Kosaid.Thetechnologyusessomethingcalledthermochromicliquid

crystal

andsilvernanowireheaters.Thermochromicmeansheatcausesthecolorstochange.Nanowiresarejustlikenormalelectricalwires,buttheyareextremelysmall.Koandtheteamdemonstratedthistechnologyusingachameleon-shapedrobotwithcolor-seeking

sensors.

Theskintriedtocopywhatevercolorsthesensors"saw"aroundit.Inavideo,therobotwalkedonred,blueandgreenfloors.WholeadTheteam?Thetechnologysomethingcalledthermochromicliquid

crystal

andsilvernanowireheaters.Theskintriedtocopycolorsthesensors"saw"aroundit.Referenceanswers:1.TheteamwasledbyKoSeung-hwan,amechanicalengineeringprofessoratSeoulNationalUniversity.2.uses3.whatever四AndrewwantedtogetaCOVID-19vaccine,butwasafraidhisparentswouldnotapprove.Hesignedupforavaccineinsecret.Thenhetoldhisparentsjustbeforehewastoreceivethevaccine.Buthisfathertoldhimno."Hesaid,‘You'renotgettingthis...vaccine."Andrewsaiditwasthefirsttimehisfatherhadeverdonesomethinglikethat."Hegrabbedmyshirtandyelledinmyface,"saidAndrew,a17-year-oldstudentinHoover,Alabama.Childrenunder18needtheirparents'permissiontogetmedicaltreatmentsuchasthevaccineagainstCOVID-19.Studentsandorganizersofcampaignsthatdirectlytargetyoungpeopleforvaccinationeffortsarefacingreactionsfromfamilies.MillionsofAmericanstudentshavereturnedtoschoolinrecentweeks.Atthesametime,thecoronaviruscontinuestospreadathighratesinsomeplaces.U.S.PresidentJoeBidenhaspushedschool

districts

topersuadestudentstogetvaccinated.Biden'sadministrationhasalsopushedfor

clinics

inschoolsthatprovidevaccines.Butdistrustofthevaccineandotherconcernsr