2016-2023年云南科技信息职业学院高职单招（英语／数学／语文）笔试历年考点试题甄选合集含答案解析

2016-2023年云南科技信息职业学院高职单招（英语／数学／语文）笔试历年考点试题甄选合集含答案解析（图片大小可任意调节）第1卷一.数学单项选择题(共15题)1.设函数f(χ)在(-∞，+∞)上有定义，则下列函数中必为偶函数的是（）

A.见图A

B.见图B

C.见图C

D.见图D

2.在△ABC中，已知AB＝5，AC＝3，∠A＝120°，则BC长为

A.见图A

B.见图B

C.见图C

D.见图D

3.在三棱锥A－BCD中，AC⊥底面BCD，BD⊥DC，BD＝DC，AC＝a，∠ABC＝30°，则点C到平面ABD的距离是（）

A.见图A

B.见图B

C.见图C

D.见图D

4.函数y=2χ的图像与函数χ=log2y的图像()

A.关于χ轴对称

B.关于y轴对称

C.关于直线y=χ对称

D.是同一条曲线

5.正三棱柱的每条棱长都是a，则经过底面一边和相对顶点的截面面积是（）

A.见图A

B.见图B

C.见图C

D.见图D

6.节日期间，某种鲜花进价是每束2.5元，销售价是每束5元；节后卖不出的鲜花以每束1.5元的价格处理．根据前五年销售情况预测，节日期间这种鲜花的需求服从如下表所示的分布列：

若进这种鲜花500束，则期望利润是（）

A.706元

B.690元

C.754元

D.720元

7.圆心在点(5，0)且与直线3x＋4y＋5＝0相切的圆的方程是（）

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.设全集()

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°的值为（）

A.见图A

B.见图B

C.见图C

D.见图D

10.sin585°的值为（）

A.见图A

B.见图B

C.见图C

D.见图D

11.若直线ax＋2y十1＝0与直线x＋y－2＝0互相垂直，则a的值等于（）

A.见图A

B.见图B

C.见图C

D.见图D

12.下列各式正确的是()

A.见图A

B.见图B

C.见图C

D.见图D

13.过点(0，1)且与直线x＋y＋1＝0垂直的直线方程为（）

A.y＝x

B.y＝2x＋1

C.y＝x＋1

D.y＝x－1

14.如果球的大圆面积增为原来的4倍，则该球的体积就增为原来的（）

A.4倍

B.8倍

C.12倍

D.16倍

15.6名学生和l名教师站成一排照相，教师必须站在中间的站法有()

A.见图A

B.见图B

C.见图C

D.见图D

二.数学问答题(共3题)1.某服装店将进价为40元一件的衬衫，按50元一件售出时，能卖出500件，如果这种衬衫每件涨价1元，其销售量就减少10件，商店为了获得大利润，售价应为多少？

2.已知等比数列{an}的各项都是正数，且a1+a3=10，a2+a3=6．

(I)求{an}的通项公式；

(II)求{an)的前5项和．

3.曲线y＝x3－2x在点（1，－1）处的切线方程为_______．

三.英语单项选择题(共25题)1.Theconcerthasalreadybegun．Youshouldhavecomealittlebit_______．

A.early

B.muchearlier

C.moreearlier

D.earlier

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

Whenthepolicemenwereready,theyhid（28）ahedge(树篱)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）题选

A.sign

B.signal

C.number

D.shape

3.SometimesIfeelthatbeingthemotherofthreesmallchildrenislikeoperatingalargecircus(马戏团)．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）题答案

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（失去知觉）,andhisMercurywasrapidlyfillingwithwater.Reifstruggledtobreakthedriver'ssidewindowwithahammerbuthadtroublegettingitdoneunderwater.

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

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）题选

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

"Backgroundmusic"inthepassagemeans

A.musicplayedintheconcert

B.akindofnoisecomingintoyourears

C.musicwhichhelpspeopletoconcentrate

D.musicplayedwhilepeopleareworking

8.根据下面资料，回答21-35题

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）题选

A.looking

B.sending

C.running

D.waiting

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

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（参与）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(情绪)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（学费）,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(从属),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.根据下面资料，回答43-46题

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

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

Rainforestshavetheirownperfectwayforliving.Thetalltreesmakeahugeumbrellaofbran-ehesandleaveswhichprotectthemselves,smallerplants,andtheforestanimalsfromheavyrain,dryheatfromthesunandstrongwinds.Rainforesttreesgrowinsuchawaythattheirleavesandbranches,althoughclosetogether,neveractuallytouchthoseofanothertree.Scientiststhinkthisisawaytopreventthespreadofanytreediseasesandmakelifemoredifficultforleaf-eatinginsects(昆虫).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.请选出下面划线部分读音不同的选项

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(厨房)onthefirstfloor,andthebedroomsandbathroomonthesecondfloor.

TheGlennsspendalotoftimeathome.27nowtheyareatdinner.Conversation(谈话)attheGlenns′houseisusuallylivelyatmealtime.Thechildrenarediscussingtripstheywouldliketotake.Susan,whohasnever?28?onaplane,says,"I′dliketo?29aplanetoCalifornia."Henry,whoiselder,thinksitwouldbefuntobeona?30,headingforadventure(冒险)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(最喜欢的)chair,readingthepaperandMargaretissittingonthesofa,doingsomesewing.

第24题答案是查看材料

A.hardly

B.almost

C.much

D.far

20.Eightyearsago,officialsinChicago,Illinois,decidedtoreplacetheblackroofonthecitygovernmentbuildingwithaplantedgarden.Theaimwastoreduceenergycosts,improveairqualityandcontroltherainwaterenteringthecity’swastesystem（系统）．Greenroofsalsohelpreduceaproblemcalledurbanheatislands（城市热岛现象）．Duringhotweather,thebuilding’srootcouldreachtemperaturesofupto76℃.Withthegarden,thetemperatureoftherootareawasreducedbyatleast30℃.Workersplantedover150kindsofplantsthatcouldstandbadweather.Nowtheareaiscooler,thebuildingrequireslessenergytokeepcool,andtherooflooksnice.Chicagoalsooffersmoneytohelppeoplepayforbuildingtheirowngreenroots.

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

ChinahasannouncedplanstobuildacitycalledDongtan.Thecompanydesigningthecitysaysitwillproduceitsenergyfromthewind,sunandwaste.TheaimisforthecitytobeanexampletotherestofChina.

WhatdidtheofficialsinChicagodecidetodo?（）

A.Togrowplantsontheroofofthegovernmentbuilding

B.Tomakeuseoftherainwaterinthecity’swastesystem

C.Toimprovetheairqualityofthecitygreatly

D.Tobuildanothergovernmentbuilding

21.根据下面资料，回答43-46题

ItwasSharingDay!Theteacherhadaskedthestudentstobringsomethinginterestingtoclass．

JimmyfoundthelittleboxheandDadhadmade．Insidewasapieceofrock,asanddollarandashark(鲨鱼)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(速度监视器).Theymeasured（23）of88yardsonastraightroadandwatchedtosee（24）acartookto（25）thatfar.Theyknewthatifacartooksixseconds,itwastravelingfaster（26）the（27）limitof30milesanhour.

Whenthepolicemenwereready,theyhid（28）ahedge(树篱)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）题选

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(手风琴)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