广东省肇庆市高中毕业班第一次统一检测英语试题附答案文档格式.docx

广东省肇庆市高中毕业班第一次统一检测英语试题附答案文档格式.docx

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A

TheM3Challengeisacontestthatgiveshighschoolersthechancetoexperienceworkingasateamtodealwithapracticalproblemwithinlimitedtime.Thechallengeismeanttogivehighschoolersasenseofthekindsofproblemsfacedbyprofessionalmathematiciansworkingintherealworld.Studentswhoaregiftedatcoding（编程）mightconsiderthiscompetitionsinceextracreditawardsareavailableforteamswhoincludeoutstandingcodeaspartoftheirsolution.

HighschooljuniorsandseniorsfromanywhereintheU.S.arewelcometoparticipateintheM3Challenge.Teamsofstudentsmustconsistofthreetofivepeopleandatleastoneteacher-coach.Anothercoolthing?

TheM3Challengeis.entirelyonlineuntilthefinalround,andtherearenoparticipationfees!

.

AttheendoftheM3Challenge,sixteamsareidentifiedandinvitedtopresenttheirworkinNewYorkCity.Thefinalistteamsarealsoeligibletoreceivecashawards,whichareasfollows:

◆M3ChallengeChampions（SummaCumLaudeTeamPrize）$20,000

◆M3ChallengeRunnerUp（MagnaCumLaudeTeamPrize）$15,000

◆M3ChallengeThirdPlace（CumLaudeTeamPrize）$10,000

◆M3ChallengeFinalist（MeritoriousTeamPrize）$5,000（3teams）

Inadditiontothesetopprizes,therearealsoawardsintheamountof$1,500and$1,000forsemi-finalistandhonorablementionteamsrespectively.Finally,Challengefinalists,semi-finalists,andhonorablementionteamsmaybeinvitedtosubmitapplicationsforsummerinternshipsinSTEM.

1.What'

sthepurposeoftheM3Challenge?

A.Topromotecoding.

B.Toselectmathprofessionals.

C.Tosolvedifficultmathproblems.

D.Toenrichhighschoolers'

knowledge.

2.Whichofthefollowingwillleadtodisqualification?

A.Havingonlyonecoachinateam

B.ComingfromaremoteU.S.state.

C.Includingeightstudentsinateam.

D.Failingtopaytheparticipationfees.

3.Howmuchisthecashprizeforhonorablementionteams?

A.$1,000.B.$1,500.C.$5,000.D.$10,000.

B

Thewinterhadbeenbusyandlong.Idesperatelyneededagetawayfromwork

soIdecidedtobookatriptotheCaribbeanwithmywife.Butjustthreedaysbeforemytrip，thehuman-resourcesmanagerofthecompanycalledandaskedtospeakwithmeinhisoffice.Isensedsomethingwrong.Justmonthsshyofmyten—yearanniversarywiththecompany,Iwaslaidoff.

Iwasincompleteshock—tooshockedtoevencry.ButIwouldn'

tcancelmytrip,asIneededitnowmorethanever.Thenightbeforemytrip,IhadadreamthatthesuitcaseIhadbroughttothehotelwasempty.WhenIwoke,IinterpretedthisdreamtomeanthatIwasleavingallofmy“baggage”behind—andIdid.IenjoyedmyvacationmorethananyothersIhadtaken.AndwhenIwasback,IdecidedtodoonethingIlovedbutneverhadthesparetimetodo:

writing.

Myworkshadneverbeenpublished,butIwantedtotry.Iwroteafewpiecesandsentthemouttomagazinesandnewspapers.Afterseveralnon-responsesandrejections,themost-readnewspaperinCanadaagreedtopublishoneofmytravelstories.Isharedthethrillingnewswithmyfamilyandfriends.PeopleIhadn'

ttalkedtoinyearscontactedmetotellmetheyreadmystory.Howamazing!

IstartedwritingbecauseIlikedit.WhatIdidn'

trealizewasthatmyfirstpublishedstorywouldopenseveraldoors.Beingpublishedinamajorpublicationmademyresumeimpressiveandledtointerviewsforwritingpositions.ItalsoledtomorepublicationsnoticingthearticlesIsubmitted.IamsatisfiedthatnowIworkfull-timeasacorporatewriterandmyworkshavebeenpublishedinanumberofmagazines.

Gettinglaidoffwasanexperiencethatcouldhavebeenfatal（毁灭性的）,Buttherewassomethingaboutthatdreamafterithappened.Thatdreamhelpedmeputeverythingbehindmeandgavemetheconfidencetopursuenewpossibilities.

4.WhydidtheauthordecidetogotoCaribbean?

A.Togoonabusinesstrip.

B.Tohaveabreakfromwork.

C.Tofillapositioninthecompany.

D.Tocelebratehisweddinganniversary.

5.Whatcanweinferabouttheauthor?

A.Heisgiftedinwriting.

B.Heisanoptimisticperson.

C.Hegavebadjobperformance.

D.Hesufferedmuchfromlosinghisjob.

6.Howdidthefirstpublishedstoryhelptheauthor?

A.Ittightenedhisfamilybond.B.Itbroughtbacklong-lostfriends.

C.Itearnedhimajobinamagazine.D.Itenabledhimtobecomeawriter.

7.What'

sthebesttitleforthetext?

A.ATripHasChangedMyFutureB.FillYourLifewithSurprises

C.LeavetheBaggageBehindD.DaretoDream;

DaretoWin

C

Formanystudentstoday,distancelearninghasbecomethenewnormal.Butdistancelearningmeanslotsofscreentime.

Researchhasshownthatkidswhospendalotoftimeonscreensaremorelikelytohavevarioushealthproblemsandtroublewithreadingandlanguage.Yetinthecountriesstillsufferingfromtheepidemic（流行病），screensaretheonlysafewayformanyyoungpeopletolearnorsocialize.It'

sdifficultforkidsandteenstonavigatethisdilemma.

Inone2019study,TarenSanders,ahealthscientistatAustralianCatholicUniversityinNorthSydney,lookedathowkidsspenttheirscreentime.Hisgrouptheninvestigatedwhetherthetypeo£

screentimemadeadifferenceinhealthandschoolachievements.Theresearcherssortedscreentimeintofivetypes:

passive（suchaswatchingamovie）,interactive（suchas.playingavideogame）,social,educationalorsomethingelse.

Educationalscreentimewaslinkedtodoingbetterinschoolandhadnobadhealtheffects.Morepassivescreentimewaslinkedtoworseoutcomesinhealthandschoolachievements,Sanders'

groupfound,comparedwiththeothercategories.Buttheimpactwasquitesmall.Majorproblemsshowedupmainlyinkidsspendingmorethaneighthoursadayonscreens.

Themostseriousproblemcausedbytoomuchscreentimeisthatpeopleusuallysitstillwhiletheyareinfront,o£

ascreen."

Ifstudentsarespendingalldaysittingonscreens,whenaretheymoving?

”asksGuerrero,whostudiespatternsofdiseases.“Extendedtimesittingandnotmovingaroundleadstoobesity,diabetes,heartdiseaseandotherhealthissues.Soanimportantquestiontoaskyourselfisnothowmuchscreentimeareyougetting,buthowactiveareyou?

"

Sandersagrees."

Overall,I'

mnottooconcernedabouttheadditionalscreentimekidsarehavingbecauseofdistancelearning,"

hesays.“Thethingsyoushouldworryabout:

Theamountofexercisetheygetandthewaytheyspendtheirfreetime."

8.Whatdoestheunderlinedword"

navigate,inParagraph2mean?

A.Handle.B.Assume.C.Observe.D.Seize.

9.Whatdoesthe2019studyfind?

A.Therearemainlyfivetypesofscreentime.

B.Educationalscreentimedamageskids'

health.

C.Passivescreentimehasamajorinfluenceonkids.

D.Toomuchscreentimeisthemajorcauseofproblems.

10.WhatdoesGuerreroconcernmost?

A.Theproblemoflackingexercise.

B.Kidswayofspendingtheirfreetime.

C.Thenumberofdiseasesrelatedtoscreentime.

D.Distancelearningcausesadditionalscreentime.

11.Whatisthepurposeofthetext?

A.Toguideparentstoeducatetheirkids.

B.Toexplainthefindingofanewstudy.

C.Todiscusstheinfluenceofscreentime.

D.Toanalysetheeffectofdistancelearning.

D

Atanymoment,abouthalftheworld'

spopulationiswearingdenim（牛仔布）.Butfewrealizetinybitsofdenimhavebeenaddinguptoasurprisingamountofpollutioninwater,asanewstudyshows.

SamAthey,oneofthestudy'

sauthors,says,“Eventhoughdenimismadeofanaturalmaterial—cotton—itcontainschemicals."

Cottonfibersaretreatedwithmanytypesofchemicals,shenotes.Someimproveitsdurabilityandfeel.Othersgivedenimitsdistinctivebluecolor.

Atheyandherteamwashedjeansandfoundthatabout50,000microfiberscomeofffromeachpairperwash.Notallofthosefibersmaketheirwayintotheenvironment.Wastewatertreatmentplantscatchabout83to99percentofthem.Catching99percentmaysoundprettygood.Butonepercentof50,000isstill500fibersperwash.Andsinceeverypairofjeansiswashedagainandagain,itstilladdsuptolotsofmicrofibersenteringwaterenvironments.

Denimmicrofibersshowedupinsediment（沉淀物）fromtheGreatLakes.MoreofthesefiberspollutedaseriesofshallowlakesinsouthernOntario.TheyeventurnedupinsedimentfromtheArcticOceaninnorthernCanada.Theteamfounddenimaccountedfor12to23percentofmicrofibersinthesediment.Therewereothermicrofiberstoo.Buttheteamfocusedondenimbecausesomanypeoplewearjeans.

Everyonewearsjeanssotheycouldbeourlargestinputofmicrofibersintoourstreamsandsoils,“Atheysays."

Aneasywaytolimitthatisbywashingourjeanslessoften.”Atheygrewupthinkingsheshouldwashherjeansaftereverycoupleofwearings,butmostjeancompaniesrecommendwashingthemnomorethanonceamonth“Thesolutionisnotthatyoushouldn'

twearjeans,"

shesays."

Weneedtobuyfewerdenimclothesandonlywashthemwhentheytrulyneedit.”

12.Whyarechemicalsusedtodealwithcottonaccordingtothepassage?

A.Tolessenitharm.B.Toremoveitsbluecolor.

C.Tomakeitintodenim.D.Topreventfibersfromfalling.

13.Whatdoestheunderlinedword"

them"

inParagraph3referto?

A.ChemicalsB.Microfibers.

C.Jeans.D.Plants.

14.WhatisParagraph4mainlyabout?

Thewideusesofdenim.

B.Thetypesofwaterpollution.

C.Thelarg