安徽省合肥一中六中八中学年高一上学期期末英语试题.docx

安徽省合肥一中六中八中学年高一上学期期末英语试题.docx

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安徽省合肥一中六中八中学年高一上学期期末英语试题

安徽省合肥一中、六中、八中2020-2021学年高一上学期期

末英语试题

学校:

姓名：

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考号：

一、阅读选择

UnsolvedMysteriesAboutthePlanetEarth

J

♦Mystery1:

Wheredidallthewatercomefiom?

Watercovers70percentofEarth'ssurfaceandearnsitthenickname"theblueplanet.Butwherediditcomefrom?

ThemostpopularscientifictheorystatesthattheH：

Ocamefromseveralviolentasteroids（小行星）filledwithice.AnothersuggeststhatthewateractuallyhasbeenaroundsinceEarth'sfbniiation.Howeverithappened,though,ifscertamlyworkedoutwellforEarth'slifefoniis.

♦Mystery2:

Whataboutalltheoxygen?

Anothertilingistheplanefsoxygen.Tinycreaturesreleasedoxygenasawasteproduct,fillmgtheatmospherewithit.Afterthat,thelevelofoxygeninEarth'satmospherewentwildlyupanddownuntilitfiliallycalmeddownaround540millionyeaisago.Smcethen,it'sremamedataboutthebreathablelevelweexperiencetoday.Butwhatcausedittobesuddenlysteady?

♦Mystery3:

WhatcausedtheCambrian（寒武纪）Explosion?

TheCambrianExplosionlefeistotheexplosionofcomplexlifeformsthatoccurredonEarthabout540millionyearsago.Beforethen,lifehadconsistedmostlyofbacteria・ButatthebegummgoftheCambrianpenod,complexcreatinesbegandevelopmgatarateneverseenbefore・Suddenly,lifeformshadbrains,eyes,andbones.MostlivmgcreatuiestodaycantracethekbloodbacktotheCambrianperiod・

♦Mystery4:

Willweeverbeabletopredictearthquakes?

Westillhaven'tbeenabletocomeupwithawaytoaccuratelypredictearthquakes.Wecancertauilytry.butourcurienttechnologycannotpredicttliemexactly.Weknowthatearthquakesstartwhenrockscrackundergroundandsendeaitliquakewavestowardthesurface,butwehaven'tfiguredoutwhythathappens,orhowtopredictit.

1・WhatwascreatedlaterbycreatuiesonEarth9

A.Oxygen・E.Water.C.Bacteria.D.Ice.

2.Wliichofthefollowingistmeaccordingtothetext?

A・Earthiscalledthebluestarbecauseofwatercoverage・

B.Thelevelofoxygenhasbeensteadyallthetime・

C.ComplexcreatureshadrapiddevelopmentintheCambrianperiod・

D・knownothmgaboutpredictingeaithquakes・

3.WhatdoweknowaboutMysteiy4?

A.Itistheoldestmysteryoftliefour.

B・Itwillbesolvedinthenearfuture・

C.Itisthemostdifficultmysterytosolveofthefour.

D.Itisamatterthathasextremelypracticalsignificance.

Rambeatsagainstthewindow,niatchmgmymood・Ishouldhaveknownthatmynewjobatthehospitalwastoogoodtobetine.Tluoughouttheday,mmorswarnedthatthenewestemployeefromeachdepartmentwouldbelaidoff.Iwasthenewestoneinthetrainingdepaitment.

Mybossappeared."Yduprobablyknowwerecuttingbackonstaffdiesaid."Administrationwantsustoofferoutplacementclassestohelpthoseemployeesfindotherjobs,showingthemhowtoactinailinterview,forexample.”"Fine,”Iansweredimwillingly,notknowingwhatelsetosay.

Idecidedtogohomeearlythatday.InthehaltImettheladywhobroughtuscookieseveiyFriday.Shewasalittlewomanwithgrayhair.Onlyherheadandthetopofhergreenapronwerevisibleoverthecart（/J、车）loadedwithcleaningsupplies.Atleastshehadajob!

Atthefinalmeetmg,laidoffworkersformedalmeatthedoor.Acolleaguewhispeied."Ican'tbelieveourCookieLadyisbemglaidoff.We'llniissherasmuchaswe'llmisshercookies.nWhenthecolleaguespoketoherinSpanish,Iknewmyclasseswouldbeuselessforher

Idecidedtodosometluiigforher.IwrotetoanewspaperexpressinghowIfeltabouttlieunselflslmessoftlieCookieLadywhoneededajob・Afewdayslater,myarticleappealedinthenewspaperandtheCookieLadywasallowedtostayinherposition.Onthesameday,Ireceivedaletter,wliichseemedsounlikelythatIreadittwice・Aneditorofalocalniagazmelikesyourpieceandwantsyoutocallhernexttimeyouarelookmgforwork."

4.Howdidtheauthorfeelonthatrainyday?

A.NenrousB・Excited

C.Aiigiy.

5.Whatwastlieautlioraskedtodo?

A,Takecareofpatients・

C・Resignfromthehospital・

6.

D・Proud.

B.Leaveearlierthatday

D・Helpthelaid-offworkers.

HowdidtheauthorhelptheCookieLady?

Listencaiefullvtothefootstepsinthefamilyhome,andyoucanprobablyworkoutwhoiswalkuigabout.Thefeaturesmostconunoiilyusedtoidentifypeoplearefaces,voicesandfingeiprints.Butthewaytheywalkisalsoagiveaway.

Reseaivhershaveusedvideocamerasandcomputerstoanalyzepeople'sgaits（步态），andarenowquitegoodatit.Buttranslatmgsuchknowledgemtoapracticalidentificationsystemcanbetricky.Camerasareoftenvisible,aiedifficulttosetup.requuegoodlightmgandmayhavethekviewblockedbyotlierpeople・AteamledbyDr.OzaiivanandDr.Scullyhavebeenlooknigforabetterwaytolecogiiizegaits.Thekanswer:

pressure-sensitivemats・

Suchmatsarenothingnew.Theyhavebeenpaitofsecuritysystems・ButOzanyanandScullyuseacomplicatedversiontliatcanrecordtheamountofpiessuieappliedindifferentplacesassomeonewalksacrossit.Thesemeasurementsformapatternuniquetothewalker.Thereseaichersturnedtoanaitificial-mtelligencesystemtorecognizesuchpatterns,anditseemedtowork・Inastudyin2018,theytestedthesystemonadatabaseoffootstepsof127people・Theyfounditserrorrateinidentifymgwhowaswhowasamere0.7%・AndScullysaysevenwithoutadatabaseoffootstepstoworkwith,thesystemcandetemunesomeone'ssexand,withreasonableaccuracy,asubject'sage.

Oneapplicationofthemat-basedgait-iecogmtionsystemmightbeinhealthcare,particulailyfortlieelderly.Amatplacedinanursinghomeoranoldperson'sownresidencecouldmonitorchangesinanmdividuaFsgaitthatindicatescertainillnesses.Thatwouldprovideearlywainmgofsomeonebeingatgreaterriskoffallingover.

Gaitanalysismightalsobeusedasasecuritymeasureintheworkplace,monitoiiiig

accesstorestiictedareas,suchaspartsofinilitaiybases,serv-erfaimsorlaboratoriesdealingwitlidangerousmaterials.Perhapsthemostinterestinguseofthemats,though,wouldbeinpublicplaces,suchasanpoils.

8・WhatismainlytalkedaboutinParagraph2?

A.Researchequipment・B.Researchfindings・

C.Researchassumption・D.Researchbackground・

9・AccordingtoPaiagraph3、thematisusedto・

A.collectdataB.ensuresafetv

J

C.determineageD.analysepressure

10.

Thegait-recognitionsystemmightbeappliedto・

DoyoutakeafancytoOlafthesnowmaninthemovieFrozen?

You'llfindanancestorofOlafwhenlookingintomanyofhistory'sculturalsymbols.Itappearedonsomeofthefiistpostcards,starredinsomeoftheearliestsilentmovies,andwasthesubjectofacoupleoftlieearliestphotos,datmgallthewaybacktothe1800s・Idiscoveredevenmoreaboutoneofhumanity'searliestfoniisoffolkartduringseveralyearsofresearcharoundtheworld.

Forexample,snowmenwereaphenomenonintheMiddleAges,builtwithgreatskillandthouglit.Atatuneoflimitedmeansofexpression,snowwaslikefreeartsuppliesdroppedfromtliesky.Itwasapopularactivityforcouplestoleisuielywalktluoughtowntoviewtlietemporaiyworksofchillyart.Somewerecreatedbyfamousartists,mcludmga19-year-oldMichelangelo,whoill1494wasappomtedbythemlerofFlorence,Italy,tobuildasnowmaninhismansion^courtyard.

TheMiiacleof1511tookplacedunngsixfieeziiigweekscalledtheWinterofDeath・ThecityofBmsselswascoveredmsnowmen—animpressivescenethattoldstoriesoneveiystieetcomer.Somewerepoliticalinnature,criticizmgthechuichandgovenunent.Somewereareflectionofpeople'smiagmation.ForthepeopleofBrussels,thiswasadefiimigmomentofaitisticfreedom,atleastuntilspringarrived,bywliichtimetlieyweredealingwithdamagingfloods・

Ifyoufeai-theheydayofthesnowmanhaspassed,don'tworryPvelearnedthatsomeexplosivesnowmanhistoryisstillbeingmadetoday.Eveiyyearsince1818,thepeopleofZurich,Switzerland,celebratethebegHiningofsprmgbyblowingupasnowman.OntliethiidMondayofApriLtheholidaySechselauteniskickedoffwhenacottonsnowmancalledtheBooggisstuffedwithexplosiveandparadedtluoughtownbybakersandothertiadesmenwhotluowbreadtothecrowds・TheparadeendswiththeBooggbemgplacedona40・footpileoffiiewood.AfterthebellsoftlieChurchofSt.Peterhavemngsixtimes,representingthepassmgofwinter,thepileislit.Whenthesnowmanexplodes,wmterisconsideredofficiallyover^thequickeritisburntdown,tlielongersununerissaidtobe.

12.Accordingtotliepassage,whydidsnowmenbecomeaphenomenonintheMiddleAges?

A.Peoplethoughtofsnowasholyartsupplies.

B・Peoplelongedtoseemasteipiecesofsnow.

C.Buildmgsnowmenwasawayforpeopletoexpressthemselves.

D.Buildmgsnowmenhelpedpeopledevelopthekskillandthought.

13・"Theheydayofthesnowman"（Paragiaph4）probablymeansthetmiewhen・

A.snowmenweremadeinauilybyartistsB・snowmeneiijoyedgreatpopularity

C.snowmenwerepoliticallycriticizedD.snowmencauseddamagingfloods

14.IllZurich,theblowingupoftlieBooggsymbolizes.

A.thestartoftheparadeB・tliecomingofalongersuimner

C.tliepassingofthewinterD.tliesuccessoftradesmen

15.Whatcanbeconcludedaboutsnowmenfromthepassage?

A.Theywereappreciatedmhistory.B・Theyhavelosttheirvalue.

C.Theywererelatedtomovies・D.Theyvaiymshapeandsize.

二七JO

Therearenumerousbenefitsofieadmggoodbooks.16,Whateveryourfieldmightbe,ifsveiymipoitanttocreateagoodhabittoleadbeyondyourhorizons・Hewaietipstohelpyoucultiva