四川泸县第四中学高二下学期下学期期中英语 含答案Word文件下载.docx

四川泸县第四中学高二下学期下学期期中英语 含答案Word文件下载.docx

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听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

1．WhenwillthemanmeetJohn?

A．Tonight．B．Tomorrow．C．Thedayaftertomorrow．

2．Whatisthepossiblerelationshipbetweenthespeakers?

A．Waitressandcustomer．B．Cookandwaiter．C．Husbandandwife．

3．Whatwillthemandonext?

A．Searchforhisroomkey．B．Gotothefrontdesk．C．ChangehisIDcard．

4．Whydoesthemantelephonethereservationoffice?

A．Tocancelhisflight．B．Toconfirmhisflight．C．Tobookaticket．

5．Whatdoesthewomanadvisethemantodo?

A．Payextramoney．B．Dropthelessons．C．Continuelearning．

第二节（共15小题；

每小题1.5分，满分22.5分）

听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；

听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

6．Whatdoesthewomando?

A．Sheisahostess．B．Sheisastudent．C．Sheisateacher．

7．Whatwillthemandonext?

A．Listentothetape．B．Memorizethedialogue．C．Finishthequestions．

听第7段材料，回答第8至10题。

8.WhydidTeresaraiseherhandthefirsttime?

A.Shehadaquestion.B.Sheneededtorelaxherarm.

C.Shewantedtousethebathroom.

9.WhatdidMr.Johnsonasktheclasstodo?

A.Turntopage55.B.Seeafamouspainting.C.Askquestionslateron.

10.Whenwillthefilmbeshown?

A.Attheendofclass.B.AfterTeresagelsback.C.Inmorethantwominutes.

听第8段材料.回答第11至13题。

11.Whatdidthemanstartdoingtwoyearsago?

A.Teaching.B.Raisingmoney.C.Savingwildanimals.

12.Whyisthemantired?

A.Hetookcareofabearallnight.B.Hestayedupsendingemails.C.Hehasalotofhomeworktograde.

13.Whatdoesthemansayaboutthebearsattheendoftheconversation?

A.Theyaredirty.B.Theyarecool.C.Theyarelovely.

听第9段材料，回答第14至16题。

14.Whyisn’tCindystudyingforthetest?

A.Sheistootired.B.Shehasaheadache.C.Shecan’tfindherbook.

15.WhatdoesBoboffertodoforCindyintheend?

A.Callherataxi.B.Coverherhead.C.Giveherhotwater.

16.Wheredoestheconversationtakeplace?

A.Athome.B.Atadoctor’s.C.Inaclassroom.

听第10段材料，回答第17至20题。

17.WhereisWendyfrom?

A.TheUSA.B.Italy.C.TheUK.

18.WhatareChristmascrackers?

A.Papertubeswithagiftinside.B.AkindofChristmasfood.C.Toyswithloudsound.

19.WhatdoallthreeBritishChristmasdessertshaveincommon?

A.Theyalllookandtasteaboutthesame.B.Theyareallmadeoutofnutsanddriedfruit.

C.TheyareallsimilartotheAmericanfruitcake.

20.Whatisthespeakermainlytalkingabout?

A.ChristmastraditionsinEngland.B.AspecialChristmasdinner.C.Interestingplays.

第二部分阅读理解（共两节，满分40分）

第一节（共15小题；

每小题2分，满分30分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

A

Thelastmalenorthernwhiterhinoinexistencediedthisweek．Itmarkstheendfortheentiresubspeciesandisyetanothertragicreminderofhowwearedestroyingourplanet．Enoughisenough．Pleasetakeactiontodayanddonate￡25tohelpsavethecriticallyendangeredeasternblackrhino．It'

stimetotakeastandandprotecttheeasternblackrhino．

Theworldiswitnessingtheextinctionofthenorthernwhiterhino．ThisrarecreaturewasonceabundantacrossCentralAfrica，butunbelievableratesofillegalhuntingfortheirhornswipedthemoutuntiljustthreeindividualswereleft．WiththerecentdeathofSudan，thelastmale，onlytwofemalenorthernwhiterhinosremain．Thishastoheourfinalwake-upcall—wemuststopthesenselesskillingofrhinosinthewild．Unlessweactnow，theeasternblackrhinocouldsufferthesamefate．Itisontheedgeofextinctionwithonly850leftinthewild．Youcanmakeadifference—rightnow．In2004，Fauna＆FloraInternational（FFI）helpedtocreateO1PejetaConservancy，asafeshelterforendangeredanimalsinKenya．O1Pejetaisnowhometoover100easternblackrhinos，andwithyoursupporttoday，wecanhelpkeepthemsafefromillegalhunters．

Bymakingadonationof￡25by9April，youcouldhelpusemploy，trainandequipguardstoprotecttheconservancyandkeeptheserareanimalssafe．YourgiftcouldhelptoprotectthelastfeweasternblackrhinosinO1Pejeta．Wemustnotbearwitnesstoanotherextinction．Pleasecompletethedonationformtohelpsavetheeasternblackrhinonow．

Pleasereturnyourformto：

FreepostFAUNA＆FLORAIN’IERNATIONAL，TheDavidAttenboroughBuilding，PembrokeStreet，CAMBRIDGECB23QZ，call01223749019orgotowww．SaveARhino．orgtodonateonline．

21．What'

sthepresentsituationofthenorthernwhiterhinos?

A．Theyfaceextinction．B．850rhinosareleftinthewild．

C．Theyarebeinghuntedfortheirhorns．D．Twofemalerhinosarereadytoproduceyoung．

22．What'

sthemoneyraisedfor?

A．ProtectingtheeasternblackrhinosinO1Pejeta．

B．Educatingpeopletolivewithanimalsinharmony．

C．Savingtheendangeredfemalenorthernwhiterhinos．

D．Gatheringalltheeasternblackrhinosintoaconservancy．

23．Howmanywaysofdonationarementionedinthetext?

A．4B．3C．2D．1

B

CustomerswhocomeintotheWaffleHouserecognizeserverEvoniWilliams,asoft-spoken18-year-oldfromTexasCity.ItallstartedwithaFacebookpost.OnthemorningofMarch3,LauraWolfwaseatingbreakfastattheWaffleHouseinLaMarquewhensheoverheardanolderman,whoremindedherofherlatefather,tellWilliamshehadtroublewithhishands.Theman,lateridentifiedasregularcustomerAdrienCharpentier,hadanoxygentanknearbyandneededhelpcuttinguphisfood.“Withouthesitation,”Wolfwrote,Williams“tookhisplateandbegancuttinguphisham.”

Impressed,WolfpostedthemomentonherFacebookpagetosharethewarmthandkindnesswithall.Thefollowingday,Williams’sFacebooknotification（关注）begantolightup.HerfriendssawWolf’spostandtrackedherinit.

Williamshadnoideathatsomeonetookaphotothatmorning.Thedinerwassobusythatalineextendedoutsidethedoor.ShesaidhelpingCharpentierwasreflexive.ShehasbeenworkingatWaffleHousesincelastJunetosaveforcollege,andthis,shefigured,wasjusttherightthingtodo.“Iwouldwantsomeonetohelpmygrandmotherorgrandfather,”Williamssaid.

ThepostbegantomakeitsroundsinLaMarqueandeventuallylandedinfrontofthecity’smayor,BobbyHocking.HedecidedtodeclareMarch8asWilliams’sday,andalsoreceivedanemailfromTexasSouthernUniversityPresidentAustinA.Lane,askingiftheschoolcouldpresentWilliamswithascholarship.

WilliamsstillworksatWaffleHousefivedaysaweekandplanstodosountilshestartsclassesinthefallatHouston-basedTexasSouthern.WolfsaidWilliamsdoesnothaveacartogettoclasses,butsomepeoplehaveofferedtostartaGoFundMepageforher,provingthatamomentofakindnesscanchangealife.

24.WhydidWolfpostthephotoonFacebook?

A.Thephotoremindedherofherlatefather.B.Itcouldsatisfyherinnerneeds.

C.Shewastouchedbythesight.D.Thecustomerhadtroublewithhishands.

25.WhatdoestheunderlinedwordinParagraph3probablymean?

A.Withoutasecondthought.B.Aftercarefulconsideration.

C.Winningareward.D.Betterservingcustomers.

26.WhatcanweinferaboutEvoniWilliams?

A.SheseldomsawCharpentiercometotheHouseforbreakfast.

B.ItwasGoFundMepagethatledtohergoodluck.

C.Sheisnolongerworkinginservicebusiness.

D.Shehasprobablyreceivedascholarshipforhercollegeeducation.

27.Whatistheauthor’spurposeofwritingthearticle?

A.TohelpWilliamsreceivehighereducation.B.Tointroducearandomactofkindness.

C.Toshowthatyounggenerationcanalwayshelp.D.Toemphasizetheinfluenceofthesocialmedia.

C

Companiesthathaveinvested（投资）heavilyinbigdatawanttoknowhowtomakesmartinvestmentsthatwilldistinguishthemfromthecompetitionandenablethebestpossiblereturnbeforemakingthedecisiontogoallin.Inthepast，notallenterprises’bigdataplanswentasplanned.Thesefailuresarenotusuallypublished，butthebigdatafailurerateisunusuallyhigh.

AccordingtoGartner，only15%ofbusinessesmakeitpasttheexperimentalstageofthese

projects.Ourfear，asleadersoftechnologycompanies，isthatwithsomuchattentionsurroundingAI，thepressureisontoapplythetechnologywithoutfirstsettingclearbusinessgoalsandunderstandingthedifferencesbetweenAIandML（machinelearning）andhowtheyshouldbeapplied，thusriskingfallingbehindthemanydecisionmakerswhoareadoptingthetechnology.

It’seasytogetcaughtupinthegreatexpectationsofartificialintelligenceasit’spromoted，includingbreakthroughslikedeeplearning，butthoselookingtomakeanoutsizedinfluenceshouldinsteadfocusongoodold-fashionedmachinelearning—or“cheaplearning”.

Thedistinctionissimple:

Cheaplearningisaboutusingbasicmachinelearningtechniquesonstraightforwarddatasetsindifferentpartsofacompanytoproducealargenumberofsmall，gradualimprovements.Deeplearning，ontheotherhand，isaspecificpartofmachinelearning.Deeplearningisacollectionofadvancedmachinelearningapproachesthatmakebusinessdecisionsbasedonhighlycomplexdatasetspossible.

Fortasksofanalyzingrawdata，suchasimagesandvoicerecordings，deeplearningisbest.Butwhenitcomestoworkingonsimplified，structuredtypesofdata，we’vefoundcheapmachinelearningwilldothetrick.Whenyouconsiderthatthemajorityofdataflowingthroughenterprisesfallsintothissecondcateg