河南省洛阳一高学年高二下学期周练418英语试题 Word版含答案Word格式文档下载.docx
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河南省洛阳一高学年高二下学期周练418英语试题 Word版含答案Word格式文档下载.docx
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TherangeofproductsandservicesavailableattheOttawaMuseumofNatureisasbroadandinterestingastherangeofactivities.
·
BirthdayParties:
Giveyourchild—agedfrom4to12—anunforgettablebirthdaypartyatthemuseum.
FacilityRentals:
PlanninganeventinOttawa?
Letourelegant,historic,castle-likesettingandourdedicatedstaffhelpyoucreateamagicaleventtoremember!
TravellingExhibitionRentals:
Lookingfornewprogrammingforyourinstitution?
Wehavemanypopulartravellingexhibitions—smallandlarge—thattouracrossOttawa.
PhotoandFilmShoots:
Eitherofouruniquebuildingswouldmakegreatbackdropsforyourproject.Whetherforacommercial(广告)education,media,orfashionproduction,we’vegotalocationforyou.
HowtoGetHere?
IfyouareonHighway417(theQueensway),taketheMetcalfeexit,No.119.Youcanseethemuseumfromthehighway—lookfora“castle”onthenorthside.
Walkingfromthedowntown:
Themuseumisonlya20-minutewalkfromParliamentHill.MetcalfeStreettakesyoudirectlytothemainentranceofthemuseum.ElginandO’Connorstreetstakeyoutotheouteredgesofthemuseumgrounds.
Membership
Westronglyadviseyoutoapplyforourmembership.Alotofon-sitebenefitsarewaitingforyou:
Freeadmissiontothemuseumforoneyear;
Freeadmissiontotemporaryblockbusterexhibitions(i.e.nospecial-exhibitionsurcharge);
Discountonmuseumprograms,includingadultworkshopsandspeciallectures(toamaximumof20%);
10pointsforuseattheNatureTrade;
10%discountattheNatureCafe.
21.Whatcanpeopledointhemuseum?
A.Holdbirthdaypartiesforfriends.B.EnjoyamoviefromHollywood.
C.OrganizeatouracrossOttawa.D.Shootanadvertisingvideo.
22.Whatdoesthemuseummainlydo?
A.Offervisitorsvariouskindsofexhibitions.B.Carryoutdifferentsocialservices.
C.Providespecialoccasionsandservices.D.Helpfamilyandfriendsgettogether.
23.Whatcanyougetasamemberofthemuseum?
A.Freesnacksandcoffeeforayear.B.On-sitediscountsandoffers.
C.Atleasta20%discountonmuseumprograms.D.Life-longfreeadmissiontothemuseum.
B
ThispastsummerIwentonajourneytoCanada’sArcticwithStudentsOnIce.WhenIleftCalgary,IwonderedwhatIwouldfind,whatIwouldlearnandwhoIwouldmeet.OnthetriptoOttawaIwaswrappedinablanketofuncertaintyandexcitement.ButwhenIfirstmetthegroupofstudents.Scientistsandleaders.IknewthatIdidn’thaveanythingtoworryabout.ThegroupwasamazinglyreceptiveandIwassoonpartofabigfamilysettingoutonanamazingadventure—anadventureofalifetime!
WhenwereachedtheArctic,Isawavastlandthatappeareduntouchedandoriginal.Iwassurprised
byitsgreatsizeandbeautyandmysenseswererepeatedlyshockedandamazed.IstoodontheKapitanKhlebnikovandsawtwelvepolarbears.Theywalkedinsearchofsealholesandpatientlywaitedforameal.Ilearnedthatpolarbearsaresuccessfulonlyoneoutofeverytwentyhuntingattempts.
However,IlearnedthattheArcticanditspeoplearebeingthreatenedbypollutionandglobalwarming.IlearnedthatpollutantsarecarriedbyoceanandairandhaveabadeffectonallArcticpeople.Ilearnedthatglobalwarminghasputpolarbearsatriskbecauseawarmerclimatemeansthattheyhaveashortertimetohuntsealsontheice.
Thetripwasafeastforthesenses.IhavelearnedmoreaboutourenvironmentandparticularlyhowaliveandinterestingtheArcticisandwhyitissoimportanttotakecareofit.Ilearnedpollutionignoranceofindividualandglobalproblemsneedtobesolved.TheArcticdeservestobepreserved.MytripwithStudentsOnIcehasmadememoredeterminedtotrytoensurethatIdonotleaveharmfulfootprintsoneitherEarthoritspeople.
24.Whatcanwelearnfromthefirstparagraph?
A.Thewriterwastooexcitedtobringablanket.
B.Thewriterwasthrilledandfullofwonderbeforethetrip.
C.Thegroupthewriterjoinedwasstrictwithitsmembers.
D.Thewriterfoundithardtofitinwiththegroup.
25.Whichistrueaboutthepolarbearsaccordingtothepassage?
A.It’snoteasyforthemtocatchseals.
B.Theyareatriskbecausethelandisvastanduntouched.
C.Theypreferalittlewarmerclimate.
D.Theywarmlywelcomedthewriterandherparty.
26.Howdidthewriterfeelaboutthetripaccordingtothelastparagraph?
A.Surprising.B.Alarming.C.Appealing.D.Rewarding.
27.Whatwouldbethebesttitleforthepassage?
A.GlobalWarmingandCanada’sArcticB.TheArcticIsunderSevereThreat
C.MyTriptotheCanadianArcticD.PolarBearsandMe
c
Scientistshavefoundanunexpecteduseforvirtualrealityheadsets(耳机).Thedevices,widelyusedbycomputergamers,showpicturesthatcanbeusedtotestthenavigational(导航)skillsofpeople,whowerethoughttobeatriskofdementia(痴呆).ThosewhodoworseinthetestswillbetheonesmorelikelytodevelopAlzheimer’sdiseaselaterinlife.scientistsnowbelieve.
ThediscoverythatthelossofnavigationalskillswasassociatedwithAlzheimer’swasmadeseveralyearsagobyDennismChanandhiscolleaguesbasedatseveralcentersintheUK.Thesestudiesusedcomputerstotestnavigationaltasks.Butnowscientistsplantotaketheirteststoanewlevelwiththeuseofthevirtualrealityheadsetsinwhichwearersareplacedinman-madeenvironmentsthroughwhichtheymustnavigate.
Around300peopleagedbetween40and60,willbearrangedtoparticipateinthestudy.SomewillhaveagenethatputsthematriskoftheconditionorwillcomefromafamilywithahistoryofAlzheimer’s.Notallwillcertainlybeaffectedbythedisease.However,Chan’sprojectaimstofindoutwhowill.Wearingtheheadsets,participantswillbeaskedtonavigatetheirwaythroughaseriesofdifferentenvironmentsandthenrememberthedetails.
Researchersrecentlypointedoutthesignificanceofatinyareaofthebrainknownastheentorhinalcortex(animportantmemorycenterinthebrain).Itactsasacenterinawidespreadbrainnetworkthatcontrolsnavigation.ThisnowappearstobethefirstpartofthebrainthatseemstobeeasilyharmedbyAlzheimer’s.
Thegoaloftheworkistohelppeopleastheydevelopthedisease.“Sofar,drugtrialsforAlzheimer’shavebeenappliedwhenpeoplehavealreadygotdementia,bywhichtimeconsiderabledamagetothebrainhasalreadyoccurred,”ChantoldtheObsenver.“Ifwecandevelopdrugsandusethemearlier,forexample,beforethediseasehasspreadbeyondtheentorhinalcortex,thenthiswouldhavethepotentialtopreventthedementia.”
28.WhatdoestheunexpecteduseofVRheadsetsmentionedinParagraph1referto?
A.Makinggamesmoreinterestingforcomputergamers.
B.Testingone’spotentialtodevelopdementia.
C.HelpingpeoplesufferingAlzheimer’srecover.
D.Reducingtheriskofhavingdementia.
29.Whataretheparticipantsrequiredtodointhestudy?
A.Knowunfamiliarenvironmentsbyusingtabletcomputers.
B.Identifydirectionsinsomeman-madeenvironments.
C.Playcomputergamesbyusingnavigationalskills.
D.Createspecialenvironmentsbyusingnavigationalskills.
30.What’simplied(暗示)abouttheentorhinalcortexinthebrain?
A.Itsfunctionshavebeenknownforyears.
B.ItcanbeexpandedbyusingVRheadsets.
C.Itcandirectlyaffectone’snavigationalskills.
D.Itssizedependsonthatofone’smemorycenter.
31.FromChan’swordswecanknow
A.hewillspreadthenewdrugB.hewilltryoutthedrug
C.thestudyhelpstopreventdementiaD.thestudystillneedstobeimproved
D
Afterdecadesofcat-and-mousebetweenathletesandtheworldanti-dopingagency(WADA),athletesfoundwhattheymusthavebelievedtobetheultimate(终极的)dopingagent:
theirownblood.Toenhanceathleticperformancewithyourownblood,youdrawyourbloodandstoreitinafreezer.Yourbodycompensatesbycreatingmoreblood.Then,monthslater,justbeforeacompetition,youcanre-inject(注射)theoldbloodforaboost.Asthered-blood-cellcountgoesup,sodoesanathlete’sabilitytoabsorboxygen.Themoreoxygenyougetwitheachbreath,themoreenergyyourbodyisabletoburnandthebetteryouareabletoperform.
Althoughtheenhancementissmalltoactualdrugs,itcanbethedifferencebetweenagoldmedalandasilvermedal.Bestofall,“extrablood”wasneversomethingWADAtestedfor.
ButWADAwasn’tgoingtositbyandbefooled.Whatitcameupwithinresponsemightbeasolutiontostopdopingonceandforall:
anathletebiologicalpassport(ABP).Theideaistorecordsomebiologicalfeaturesofanathletethroughtestingdoneatregularintervals.Thebiologicalpassport’spartialimplementation(实施)—recordingbloodandsteroidlevels—beganinJanuary2014.
Whenallnecessarybiologicalfeaturesarefinallycombined,WADAwillnolongerneedtoworryaboutfindingnewmethodstodetectadrug.Itwillonlyhavetodetect(检测)resultingchangesinthebody.Inthecaseofblooddoping,iftheathlete’snormalred-blood-cellcountis,say,47%,butthenisfoundtobe51%afteracompetition,cheatingmayhavebeeninvolved.
WADAisconfidentthatthebiologicalpassportcouldevenpreventgeneticchanges—theultimate,ever-lastingenhancement—whicharesurelycomingnext.Ifanathleteinsertsaperformanceenhancinggene,itwillprobablyleavedetectablechangesinthebody,thatwoulddifferfromtheathlete’sfeatureinthebiologicalpassport.
32.Whatdoestheunderlinedword“boost”inParagraph1probably
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