2016-2023年云南科技信息職業(yè)學院高職單招（英語／數(shù)學／語文）筆試歷年考點試題甄選合集含答案解析

2016-2023年云南科技信息職業(yè)學院高職單招（英語／數(shù)學／語文）筆試歷年考點試題甄選合集含答案解析（圖片大小可任意調節(jié)）第1卷一.數(shù)學單項選擇題(共15題)1.設函數(shù)f(χ)在(-∞，+∞)上有定義，則下列函數(shù)中必為偶函數(shù)的是（）

A.見圖A

B.見圖B

C.見圖C

D.見圖D

2.在△ABC中，已知AB＝5，AC＝3，∠A＝120°，則BC長為

A.見圖A

B.見圖B

C.見圖C

D.見圖D

3.在三棱錐A－BCD中，AC⊥底面BCD，BD⊥DC，BD＝DC，AC＝a，∠ABC＝30°，則點C到平面ABD的距離是（）

A.見圖A

B.見圖B

C.見圖C

D.見圖D

4.函數(shù)y=2χ的圖像與函數(shù)χ=log2y的圖像()

A.關于χ軸對稱

B.關于y軸對稱

C.關于直線y=χ對稱

D.是同一條曲線

5.正三棱柱的每條棱長都是a，則經(jīng)過底面一邊和相對頂點的截面面積是（）

A.見圖A

B.見圖B

C.見圖C

D.見圖D

6.節(jié)日期間，某種鮮花進價是每束2.5元，銷售價是每束5元；節(jié)后賣不出的鮮花以每束1.5元的價格處理．根據(jù)前五年銷售情況預測，節(jié)日期間這種鮮花的需求服從如下表所示的分布列：

若進這種鮮花500束，則期望利潤是（）

A.706元

B.690元

C.754元

D.720元

7.圓心在點(5，0)且與直線3x＋4y＋5＝0相切的圓的方程是（）

A.x2＋y2－10x－16＝0

B.x2＋y2－10x－9＝0

C.x2＋y2－10x＋16＝0

D.x2＋y2－10x＋9＝0

8.設全集()

A.{3，4，6，8，9，12，15，16，18，20}

B.{3}

C.

D.{3，5，7，11，13，17，19}

9.tan300°＋sin450°的值為（）

A.見圖A

B.見圖B

C.見圖C

D.見圖D

10.sin585°的值為（）

A.見圖A

B.見圖B

C.見圖C

D.見圖D

11.若直線ax＋2y十1＝0與直線x＋y－2＝0互相垂直，則a的值等于（）

A.見圖A

B.見圖B

C.見圖C

D.見圖D

12.下列各式正確的是()

A.見圖A

B.見圖B

C.見圖C

D.見圖D

13.過點(0，1)且與直線x＋y＋1＝0垂直的直線方程為（）

A.y＝x

B.y＝2x＋1

C.y＝x＋1

D.y＝x－1

14.如果球的大圓面積增為原來的4倍，則該球的體積就增為原來的（）

A.4倍

B.8倍

C.12倍

D.16倍

15.6名學生和l名教師站成一排照相，教師必須站在中間的站法有()

A.見圖A

B.見圖B

C.見圖C

D.見圖D

二.數(shù)學問答題(共3題)1.某服裝店將進價為40元一件的襯衫，按50元一件售出時，能賣出500件，如果這種襯衫每件漲價1元，其銷售量就減少10件，商店為了獲得大利潤，售價應為多少？

2.已知等比數(shù)列{an}的各項都是正數(shù)，且a1+a3=10，a2+a3=6．

(I)求{an}的通項公式；

(II)求{an)的前5項和．

3.曲線y＝x3－2x在點（1，－1）處的切線方程為_______．

三.英語單項選擇題(共25題)1.Theconcerthasalreadybegun．Youshouldhavecomealittlebit_______．

A.early

B.muchearlier

C.moreearlier

D.earlier

2.BrightonisapopularseasidetownonthesouthcoastofEngland.Notlongago,somepolicemenwerevery（21）.Therehadbeenseveralseriousaccidents（22bymotoristsdrivingtoofast.Thepolicestartedtosetupaspeedtrap(速度監(jiān)視器).Theymeasured（23）of88yardsonastraightroadandwatchedtosee（24）acartookto（25）thatfar.Theyknewthatifacartooksixseconds,itwastravelingfaster（26）the（27）limitof30milesanhour.

Whenthepolicemenwereready,theyhid（28）ahedge(樹籬)andstartedtotimepassingcars.Duringtheirfirsthalfanhour,theycaughtfivedrivers.Thepolicemenwrotedownthe（29）ofeachcarandthenameandaddressofthedriver.Butforthenexthalfanhourthepolicemendidn′tseeanybody（30）toofast.Theythoughtthatthiswasvery（31）.Oneofthemdroveaquarterofamilealongtheroadandsawtwostudents（32）onthegrass.Theywereholdingupasheetofcupboardsothatmotoristscouldseeit.Onthenoticeoneofthestudents（33）:"Danger.

Speedtrap."

Thepolicementookthenoticeawayandwrotedownthenamesofthestudents.Laterontheywereeachfined￡5for（34）tostopthepolicecatchingmotoristswhowere（35）thelaw.

第（29）題選

A.sign

B.signal

C.number

D.shape

3.SometimesIfeelthatbeingthemotherofthreesmallchildrenislikeoperatingalargecircus(馬戲團)．21afternoonlastweek,mythreesonsplayingpeacefullyinthebackyard(院子),22theballfromonetoanother．Ijumpedatthechancetotalktooneofmyfriends23thephone,butbeforeI24tothephone,Icouldtelltheboyshadbeguntoquarrelwitheachotheraboutsomething．Irushedoutto25peace,butbeforeIgotthereCharleshad26arockatMark,andhithimintheeye．BythetimeIgottothebackyard,theyhadbegunto27aboutthis．EvenDavid,theoldestboy,whowon'tusuallyfightwithanybodyabout28,wasinvolved(卷入)First,!29themstopfighting,andthen!examinedMark'seye．Idecidedthatitwasn'tgoingtodevelopintoablackeye,butIfeltthattheyshould30atleastalittlefor31theyhaddone．"I'mgoingto32toyourfatheraboutthiswhenhecomeshometonight,"Isaid．"HeandIwillthinkofhowtopunishyou．"Thingswere33quietafterthatforabouthalfanhour,andthenCharles34aglassinthekitchen,andatalmostthesame35,Markfelloutoftheappletree．

第（35）題答案

A.moment

B.second

C.minute

D.hour

4.MyfriendBobalways__________jokeswheneverwegettogether.

A.says

B.speaks

C.talks

D.tells

5.RobertKohout,39,wasworkingoutsidehishomelastOctoberwhenheheardafrighteningnoise.HeturnedroundandsawWalterGraham'scarsinkinginto8feetofwateroftheswimmingpoolalittledistanceawayfromhisyard.

KohoutimmediatelycalledtoGraham'swife,Evelyn,totelephone911.ThenheranbacktohishousetogetTerenceReifandGlennFajardotohelp,whowereatworkinsidethehouse."Therewasnotimeforsecondthoughts,"saidReif,afarmer'sson."Theonlythingtodowastogetinthepool."

Thecardoorswerelocked.Graham,73,wasunconscious（失去知覺）,andhisMercurywasrapidlyfillingwithwater.Reifstruggledtobreakthedriver'ssidewindowwithahammerbuthadtroublegettingitdoneunderwater.

Finally－somefourminutesafterthecarhadfallenintothepool－theglasswasbroken.Bythen,Grahamwasfloatingatthetopofthefloodedpassengercompartment（車廂）.

ThethreemenpulledGrahamoutthroughthebrokenglass.Hewasn'tbreathingandhisheartstoppedbeating,sotheyperformedmouth-to-mouthresuscitation.Therescue（急救）teamarrivedinnotime.Doctorssuppliedhimwithadvancedlifesupportonthewaytothehospital.

"ThesepeopleweregettingtoGrahamthroughtheglass,"saidDr.JeffMessinger."Allthreeactedwithoutregardfortheirownsafety."AddedEvelynGraham,"Theyweretrulyangels（天使）watchingoverus."

Whichofthefollowingwouldbethebesttitleforthisstory?（）

A.TheUnderwaterCar

B.AngelsaroundUs

C.RescueTeaminTime

D.SafetyFirst

6.Enoughsleepisimportanttohealth.Theamountofsleep（21）dependsontheageoftheper-sonandtheconditionsinwhichsleep（22）.Theyoungmayneedmoresleepthantheold,butgenerallyeighthoursareenoughforthehealthofgrown-ups.Somecan（23）withlessthanthisamountbut（24）mayneedmore.Everypersonknowshisownneed.Itisthenamatterofhowto（25）it.Sleepshouldalwaysbeenoughtomakeonerelaxed(松弛)andreadyfor（26）work.

Freshairis（27）tosoundsleep(酣睡).Itisnotwithoutreasonforsomepeopleto（28）thatitispracticaltosleepintheopenair.（29）apersoncankeephimselfwarm,out-of-doorsleepingprobablygivesthebody（30）completerelaxation.

Abilitytosleepislargelyahabit.Theconditionsreferredtoonlyleadtosleep.Out-of-door（31）,agoodhabitofregulardrinkingandtheavoidanceoflateeatingand（32）areallhelpfultosoundsleep.Suchfactorsarelargelywithinthecontrolofanyperson.Abathat（33）,neitherhotnorcoldbutof（34）temperature,maybehelpfultosleep.Sleepingpillsshouldneverbetakenexceptwhensuggestedby（35）.

第（34）題選

A.freezing

B.boiling

C.low

D.body

7.Lifegetsnoisiereverydayandveryfewpeoplecanfreefromnoiseofsomesortoranother.Itdoesn′tmatterwhereyoulive--inthemiddleofamodemcity,orafarawayvillage--thechancesthatyouwillbedisturbedbyjetaeroplanes,transistorradios,oilpoweredengines,etc.,arealmosteverywhere.Weseemtobegettingusedtonoise,too.Somepeoplefeelquitelonelywithoutbackgroundmusicwhiletheyareworking.

Scientifictestshaveshownthattotalsilencecanbeveryfrighteningexperienceforhumanbeings.However,somepeopleenjoylisteningtopopmusicwhichisveryloud,andthiscandoharmtotheireardrums（耳鼓）.Thenoiselevelinsomediscoisfarabovetheusualsafetylevelforheavyindustrialareas.

Onerecentreportaboutnoiseandconcentration（專心）suggestedthatalthoughalotofpeoplesaythatanynoisedisturbstheirconcentration,whatreallyaffectstheirabilitytoconcentrateisachangeinthelevelofnoise.Itgoesontosaythatabackgroundnoise,whichdoesn′tchangetoomuch（music,forexample）mayevenhelppeopletoconcentrate.

"Backgroundmusic"inthepassagemeans

A.musicplayedintheconcert

B.akindofnoisecomingintoyourears

C.musicwhichhelpspeopletoconcentrate

D.musicplayedwhilepeopleareworking

8.根據(jù)下面資料，回答21-35題

Mrs．McTavishlookedout．"It'salovelyday．Wouldyouliketogoforawalkinthepark"Herchildren21withexcitement．

"Beforewego,youneedtofollowsomerules．Everyonemust22handsandstayclosetome．Youcan't23anywherebyyourself．Canyoualldothat"

Allfour24theywould．Astheywalkeddownthestreet,Fionasaid,"Iwantanicelolly(冰棍),Mummy．Canwehavesome"

"Youcanifyoufollowtherules,"answeredMrs．McTavish．

Theparkisjustaroundthecorner．Thechildrenranoffto25Afterawhile,whenMrs．McTavishlookedupshecouldn'tseeJock．"Fiona,where'sJock"

"Idon'tknow,Mummy．He'snothere26,"saidFiona．

Theothershadn't27Jockeither．Mrs．McTavishhadtogatherherchildrentogetherandwalk

aroundthepark28forhim．Shefoundhimsittingneartheicelollyman．"Jock!Whatareyoudoing

hereIcouldn't29you．"

"Mummy,Iwantanicelolly,"Jockwhispered．

"Youcan'thaveonenow30youdidn'tfollowtherules．"Mrs．McTavish31oneforeachoftheotherchildrenandtheylicked(~,)themallthewayhome．Jockcried．Whenthey32homeshetalkedtoJock．"Mummyhasfourchildren．ImusthaverulessoIcan33aneyeonyou

andknowyou're34．"Jocksaidhewas35andhewouldfollowtherulesfromthenon．

第（28）題選

A.looking

B.sending

C.running

D.waiting

9.Somevillagersweregoingtocelebrateanimportantwinefestival（酒宴）inafewdays'time,sotheyborrowedahugebarrelfromthenearesttown,putitinthevillagesquare;anddecidedthateachofthemshouldemptyabottleofthebestwinehehadintoit,sothatthereshouldbeplentyatthefeast（宴會）.

Oneofthevillagersthoughthewouldbeveryclever."IfIpourabottleofwaterin,insteadofwine,noonewillnoticeit,"hesaidtohimself,"becausetherewillbesomuchexcellentwineinthebarrelthatthewaterwillbelostinit."

Thenightofthefeastarrived.Everybodygatheredinthevillagesquarewiththeirbowlsandtheirglassesforthewine.Thetap（塞子）onthebarrelwasopened,butwhatcameoutwaspurewater.Everyoneinthevillagehadthesameidea．

Whatdoestheunderlinedsentence"thewaterwillbelostinit"mean?（）

A.Thewaterwouldflowthroughthebarrelintotheground

B.Thewaterwouldbegoneinthebarrel

C.Thewaterwouldbemixedupwiththewine

D.Thewatercouldn’tbefoundinthewine

10.____,youmustshowyourtickettogointothecinema.（）

A.Nomatterwhomeveryouare

B.Inwhomeveryouare

C.Whoeveryouare

D.Nomatterwhoareyou

11.Studentparticipation（參與）intheclassroomisnotonlyacceptedbutalsoexpectedofthestudentinmanycourses.Someprofessorsbasepartofthefinalgradeonthestudent′soralparticipation.Althoughthereareformallecturesduringwhichthestudenthasapassiverole（i.e.,listeningandtakingnotes）,manycoursesareorganizedaroundclassroomdiscussions,studentquestions,andinformallectures.Ingraduatediscussionstheprofessorhasa"manager"roleandthestudentsmakepresentationsandleaddiscussions.,Thestudentsdotheactualteachinginthesediscussions.

Aprofessor′steachingmethodisanotherfactor（因素）thatdeterminesthedegreeandtypeofstudentparticipation.Someprofessorsprefertocontroldiscussionwhileothersprefertoguidetheclasswithoutcontrollingit.Manyprofessorsencouragestudentstoquestiontheirideas.Studentswhoobjecttotheprofessor′spointofviewshouldbepreparedtoprovetheirpositions.

Intheteachingofscienceandmathematics,thecontrollingmodeofinstructionisgenerallytraditional,withteacherspresentingformallecturesandstudentstakingnotes.However,neweducationaltrendshaveturnedupinthehumanitiesandsocialsciencesinthepasttwentyyears.Studentsineducation,society,andhistoryclasses,forexample,areoftenrequiredtosolveproblemsingroups,designprojects,makepresentations,andexaminecasestudies.Sincesomecollegeoruniversitycoursesare"practical"ratherthantheoretical,theypaymoreattentionto"doing"forthemselves.

Fromthepassageweknowthateducationinthehumanitiesandsociety

A.hasnotchangedmuch__________

B.payattentiontostudents'studyinginsteadofteachers'teaching

C.ismuchmoreimportantthanthatofscienceandmathematics

D.hasbecomemorepracticalthantheoretical

12.Catsarecreaturesofhabit.Theyliketogotosleepaboutthesametimeeverydayandforacertainlengthoftime.Theyseemtohaveanaturalclockinsidethemthattellsthemwhentosleep.

Catsincreasetheirregularsleepwithoccasionalcatnaps(打盹).Someexpertsfeelthathumanscouldalsobenefitfromthishabit.Catnapshelptobuildupenergyinthebody.Theyarealsoagoodwaytogetridoftrouble！Sincecatshavethesamemoods(情緒)ashumans,someexpertsbelievethatpeoplecanimprovetheirmoods.Peoplemightbecomehappier.

Anumberoffamouspeoplehavecopiedcatsbytakingcatnapsduringtheday.Thenapswouldusuallylastfrom15to30minutes.

WinstonChurchilltookcatnaps.SodidPresidentsHarryTruman,JohnF.KennedyandLyndonB.

Johnson.Thesefamousmenwereknownfortheirenergy.Theywerealsoabletoworklonghours,oftenintothenight.Nappingwastheirsecret.

Perhapsmorepeoplelearnfromcatsandtakenapstofeelbetterandlivelonger!

Takingcatnaps

A.willmakeapersonlazyandtired

B.isabadhabit

C.willmakepeoplefeelbetter

D.canhelppeoplebecomefamous

13."Thepriceofbooksforourstudentsisjustgettinghigherandhigher,andalongwiththerisingcostoftuition（學費）,it'skillingthesestudents,"saidPeterJason,acollegeprofessor."Remember,studentsareoneofthepoorestgroupsofpeopleinAmerica.Almosthalfofthemhaveatleastonepart-timejob.Infact,oneofmystudentshasthreejobs.Andshestillmanagestohavehighscoresandgotoschoolfull-time."

Textbookpricesareusuallyhigh.Addingtothatproblem,manycollegeteacherschangetextbooksyearafteryear.Theyeitherupgradetoanewedition（版本）orchangetoadifferenttextbook.Thisfurtherhurtsstudentsbecauseifateachernolongerusesatextbook,thatbookhasnoresalevalue.

Dr.Jasondecidedtomakelifealittleeasierandalotcheaperforhisstudentsbywritinghisownbookonpublicspeaking."ManybookshaveanincreasedpricebecauseofCD-ROMs,lotsofcolorphotographsandpictures.Italkedtomystudents,andmanyofthem,likeme,prefertokeepthingssimple.So,afewyearsago,Iwrotemyowntextbook.Imadesurethatitwassimple.Comparedtomostofotherpublicspeakingbooks,mineishalfthenumberofpages,andone-thirdtheprice.Thatis$30insteadof$90.WhenIwroteasecondeditionlastyear,studentsonlyhadtobuythe35newpages.Foronly$7,theyhadalmostanewbook."

HowmuchdoesPeterJason'ssecondeditionbookusuallycost?（）

A.About7dollars

B.About30dollars

C.About37dollars

D.About90dollars

14.TheordinaryfamilyincolonialNorthAmericawasprimarilyconcernedwithsheerphysicalsurvivalandbeyondthat,isowneconomicprosperity.Thus,childrenwerevaluedintermsoftheirproductivity,andtheyassumedtheroleofproducerquiteearly.Untiltheyfulfilledthisrole,theirpositioninthestructureofthefamilywasoneofsubordination(從屬),andtheirpsychologicalneedsandcapacitiesreceivedlittleconsideration.

Asthesocietybecamemorecomplex,thestatusofchildreninthefamilyandinthesocietybecamemoreimportant.Inthecomplex,technologicalsocietythattheUnitedStateshasbecome,eachmembermustfulfillanumberofpersonalandoccupationalrolesandbeinconstantcontactwithagreatmanyothermembers.Consequently,viewingchildrenaspotentiallyacceptablemembersofsocietymeansthattheyareregardedmoreaspeopleintheirownrightthanasutilitarianorganisms.

Thisacceptanceofchildrenasequalparticipantsinthecontemporaryfamilyisreflectedinthevarietyofstatutesprotectingtherightsofchildrenandinthesocialpublicwelfareprogramsdevotedexclusivelytotheirwell-being.

Thisnewwayofchildrenandtheincreasingcontactbetweenthemembersofsocietyhasalsoresultedinagreatinterestinchild-rearingtechniques.Peopletodayspendaconsiderableportionoftheirtimeontheproperwaytobringupchildren.Itisnowpossibletoinfluencethedetailsofthesocializationofanotherperson′schildbyspreadingtheprincipleofcurrentandfashionabletheoriesandmethodsofchild-rearing.

Accordingtothepassage,parentshavebecomeincreasinglyinterestedin.

A.theirchildren'sfutureoccupations

B.havingsmallerfamilies

C.adoptionprogramsforchildlesscouples

D.child-rearingtechniques

15.根據(jù)下面資料，回答43-46題

Aworldlikenoother—perhapsthisisthebestwaytodescribetheworldoftherainforest.Norainforestisthesame—yetmostrainforestscanbefoundinthesmalllandarea22.5degreesnorthand22.5degreessouthoftheEquator(赤道).YoucanfindrainforestsinSouthAmericaandIndo-nesia.OtherrainforestsexistfurtherfromtheEquator,inThailandandSriLanka.

Rainforestshaveagreatroletoplayinsupportingtheworld.Theyarehometoarichvarietyofplants,birdsandanimals.Canyoubelievethat480varietiesoftreesmaybefoundinjustonehec-tare(公頃)ofrainforestTheseforestshavearound50%ofalltheplants,birdsandanimalsonEarth.

Rainforestshavetheirownperfectwayforliving.Thetalltreesmakeahugeumbrellaofbran-ehesandleaveswhichprotectthemselves,smallerplants,andtheforestanimalsfromheavyrain,dryheatfromthesunandstrongwinds.Rainforesttreesgrowinsuchawaythattheirleavesandbranches,althoughclosetogether,neveractuallytouchthoseofanothertree.Scientiststhinkthisisawaytopreventthespreadofanytreediseasesandmakelifemoredifficultforleaf-eatinginsects(昆蟲).Toliveintheforest,animalsmustclimb,jump,orflyacrossthebranchesandtrees.Thegroundflooroftheforestisnotallleavesandbushes,likeinfilms,butisactuallyfairlyclear.Itiswhereleavesbecomefoodforthetreesandotherforestlife.

Rainforestsaroundtheworldaredisappearingatahighspeed.Afewthousandyearsago,rain-forestscoveredasmuchas12%ofthelandsurfaceonEarth,buttodaythishasfallentolessthan5.3%.Wehopethattheworldgovernmentsworktogetherwithscientiststousetheirpowerandknowledgetokeeptherainforestsforourexistence.

Whatcanbeseeninarainforestaccordingtothetext

A.Leavesandbranchesofatreeneveractuallytouchthoseoftheothertrees

B.Treediseasesmakelifemoredifficultforleaf-eatinginsects

C.Talltreesprotectthemselvesfromforestanimalswiththeirbranches

D.Thegroundfloorisallcoveredbyleavesandbranches

16.Clearly,____objectofthegameistoimprove____children'smathskills.

A.不填;the

B.an;the

C.不填;不填

D.the;不填

17.ItcanbeinferredfromthepassagethattheCraigheadCavernspresentlyserveas____.

A.anundergroundtestingsite

B.anIndianmeetingground

C.atouristattraction

D.amotorboatracecourse

18.請選出下面劃線部分讀音不同的選項

A.[ear]ly

B.[ear]th

C.s[ear]ch

D.h[ear]

19.GeorgeandMargaretandtheirchildren?21?at140DavisStreet,22?thestreetfromasmallpark.Theirhouseisjustoffthemainroad.Georgeusuallygoestoworkbybus,butsometimeshegoes?23?hiscar.Thechildrenusuallygotoschoolbybus.

TheGlenns′houseis?24?hiddenamongthetrees.Ithassmallbushes(灌木)plantedaroundit.Thereisafence?25itandthehousenextdoor.Itisatwo-storeyhouse,26thelivingroom,diningroomandkitchen(廚房)onthefirstfloor,andthebedroomsandbathroomonthesecondfloor.

TheGlennsspendalotoftimeathome.27nowtheyareatdinner.Conversation(談話)attheGlenns′houseisusuallylivelyatmealtime.Thechildrenarediscussingtripstheywouldliketotake.Susan,whohasnever?28?onaplane,says,"I′dliketo?29aplanetoCalifornia."Henry,whoiselder,thinksitwouldbefuntobeona?30,headingforadventure(冒險)inAfrica.Teddy,theyoungestchild,says,"Iwanttogoaroundtheworldonatrain."Hiselderbrotherandsisterarestilltryingto?31tohimwhythisisnotpossible?32?theirmothersays,"Children,you′vespenttoomuchtimeatthetable.HenryandSusan,goand?33yourhomework.Teddy,it′stimeyouwereinbed."

Soonthereissilencethroughoutthe?34.Teddyisinbed,SusanandHenryareintheirroomsstudying,andMr.andMrs.Glennsareintheirlivingroom,35Georgeissittinginhisfavorite(最喜歡的)chair,readingthepaperandMargaretissittingonthesofa,doingsomesewing.

第24題答案是查看材料

A.hardly

B.almost

C.much

D.far

20.Eightyearsago,officialsinChicago,Illinois,decidedtoreplacetheblackroofonthecitygovernmentbuildingwithaplantedgarden.Theaimwastoreduceenergycosts,improveairqualityandcontroltherainwaterenteringthecity’swastesystem（系統(tǒng)）．Greenroofsalsohelpreduceaproblemcalledurbanheatislands（城市熱島現(xiàn)象）．Duringhotweather,thebuilding’srootcouldreachtemperaturesofupto76℃.Withthegarden,thetemperatureoftherootareawasreducedbyatleast30℃.Workersplantedover150kindsofplantsthatcouldstandbadweather.Nowtheareaiscooler,thebuildingrequireslessenergytokeepcool,andtherooflooksnice.Chicagoalsooffersmoneytohelppeoplepayforbuildingtheirowngreenroots.

Aboutfiveyearsago,officialsinThane,India,decidedtoreducethecity’sdependingonpowerfromcoal.Thecityoftenexperienceslackofpowerbecauseofthelargenumbersofpeopleusingelectricity.Officialsdecidedtosaveenergybyputtingwaterheaters（熱水器）poweredbythesunontopofthecity’smainhospital.Thehospitalsavedthousandsofdollarsinenergycostseachyear.Officialsthenbeganbuildingthiskindofwaterheateraroundthecity.

ChinahasannouncedplanstobuildacitycalledDongtan.Thecompanydesigningthecitysaysitwillproduceitsenergyfromthewind,sunandwaste.TheaimisforthecitytobeanexampletotherestofChina.

WhatdidtheofficialsinChicagodecidetodo?（）

A.Togrowplantsontheroofofthegovernmentbuilding

B.Tomakeuseoftherainwaterinthecity’swastesystem

C.Toimprovetheairqualityofthecitygreatly

D.Tobuildanothergovernmentbuilding

21.根據(jù)下面資料，回答43-46題

ItwasSharingDay!Theteacherhadaskedthestudentstobringsomethinginterestingtoclass．

JimmyfoundthelittleboxheandDadhadmade．Insidewasapieceofrock,asanddollarandashark(鯊魚)tooth．Nobodycouldhaveanythingasinterestingasthese!

Inclass,Jimmywaitedanxiously,hopingtobecalledonfirstbytheteacher．ButKarawasfirst．

Sheheldupasanddollar．Jimmy'seyesgrewbig．

"Ifoundthisonthebeach,"Karasaid．"It'sinteresting．Thelittleholesthatmakethesanddollarlooklikeaflowerarebreathingholes．SeealltheneedlesTheyhelpthesanddollarmoveanddigintothesand．"

Jimmywasalittleuneasy．Oh,well,hestillhadhisrockandsharktooth．

ThenMarkstoodup．"Thisismyfavoriterock,calledpumice(浮石)．"ThenMarkdroppedtherockintoaglassofwater．"Look!Pumiceistheonlyrockthatfloats!"

Jimmyputuphishandandwaved,buttheteachercalledonJustininstead．

"IfoundthissharktoothinHawaiilastChristmas,"Justinsaid．

Theclasswasexcited,butJimmyloweredhishead．"Sharkshaverowsofteeth．Everytimeasharklosesatooth,anotheronetakesitsplace．"Justinpassedthetootharound．

Jimmyheardtheteachercallhim．Hestoodononefootandthentheother．"Well,ah,see．．．mytreasureboxisinteresting!ItwasjustapieceofwooduntilDadandIcutitintopiecesandfinallymadeaboxoutofit．Itsmellsgood,remindingusofcamping．"

"What'sinside"askedLisa．

Jimmyopenedhisbox．"Asanddollar,apieceofpumiceandasharktooth．"

Hisclassmates'mouthsdroppedopen．Theteacherlookedattheobjectsintheboxandsmiled．

"Nowthat'sinteresting!"hesaid．

Whosharedwiththeclassarockthatfloats

A.Lisa

B.Kara

C.Justin

D.Mark

22.BrightonisapopularseasidetownonthesouthcoastofEngland.Notlongago,somepolicemenwerevery（21）.Therehadbeenseveralseriousaccidents（22bymotoristsdrivingtoofast.Thepolicestartedtosetupaspeedtrap(速度監(jiān)視器).Theymeasured（23）of88yardsonastraightroadandwatchedtosee（24）acartookto（25）thatfar.Theyknewthatifacartooksixseconds,itwastravelingfaster（26）the（27）limitof30milesanhour.

Whenthepolicemenwereready,theyhid（28）ahedge(樹籬)andstartedtotimepassingcars.Duringtheirfirsthalfanhour,theycaughtfivedrivers.Thepolicemenwrotedownthe（29）ofeachcarandthenameandaddressofthedriver.Butforthenexthalfanhourthepolicemendidn′tseeanybody（30）toofast.Theythoughtthatthiswasvery（31）.Oneofthemdroveaquarterofamilealongtheroadandsawtwostudents（32）onthegrass.Theywereholdingupasheetofcupboardsothatmotoristscouldseeit.Onthenoticeoneofthestudents（33）:"Danger.

Speedtrap."

Thepolicementookthenoticeawayandwrotedownthenamesofthestudents.Laterontheywereeachfined￡5for（34）tostopthepolicecatchingmotoristswhowere（35）thelaw.

第（27）題選

A.time

B.speed

C.expense

D.area

23."It'snouse,Mum,"saidJohnny．"I'mjustnogoodatdancing．"

"You'vegottokeeptrying．Tonightwillbe21,dear．TryaturnwiththatprettyLisette．"

Johnny22．EverySaturdaynightusedtobethebestoftheweek．Heandhisparentswenttothe23attheClub,wherehishero,Alcide,playedtheaccordion(手風琴)withtheband．Butlatelyeverythinghadchanged．NowthatJohnnywasolder,hewas24todancewithagirl!

25JohnnyandhisparentsarrivedattheClub,musichadalreadystarted．Johnnygotuphis26toapproachLisette．"MayIhavethisdance?"Johnnyasked．"That'sallright,"saidLisette．

JohnnystruggledtokeepupwithLisette's27steps,buthewasalwaysonebeatbehindher．ThenJohnnyheardhisfriendPierresay,"Look!Johnnyhastwoleftfeet!"Laughterburstfromthecrowd．

Johnny28andranoutside,determinednevertogotoanotherdance．

ThenextSaturday,AlcidedrovetoJohnny'shouseforsomepotatoes．HehappenedtohearJohnnyplayingtheaccordion．Alcide'seyes29"Bringthataccordionandplaysomesongstonight,"Alcidesaid．Thenhedroveoff,leavingJohnnystaringopen-mouthed30him．

AttheClub,JohnnyscannedthecrowdforLisetteand31her．ThebandplayedforalongtimebeforeAlcidesaid,"Dearfriends,Igota32foryoutonight．YoungJohnnyisgoingtojoinus!"

Trembling,Johnnysteppedupontheplatform,hiseyesonthef