2016-2023年黔南民族幼儿师范高等专科学校高职单招（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年黔南民族幼儿师范高等专科学校高职单招（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.在正方体ABCD-A1B1C1D1中，E，F分别为AD，D1D的中点，则直线EF与BD1所成角的正弦值是()

A.见图A

B.见图B

C.见图C

D.见图D

2.甲、乙两人独立的破译一个密码，设两人能破译的概率分别为P1，P2，则恰有一人能破译的概率为

A.见图A

B.见图B

C.见图C

D.见图D

3.设log57＝m，log25＝n，则log27＝（）

A.见图A

B.见图B

C.见图C

D.见图D

4.函数的值域是（）

A.[-2，2]

B.[-1，3]

C.[-3，1]

D.[0，4]

5.设二次函数y=ax2+bx+c的图像过点（-1,2）和（3,2），则其对称轴的方程为

A.x=-1

B.x=3

C.x=2

D.x=1

6.展开式中，末3项的系数(a，χ均未知)之和为()

A.22

B.12

C.10

D.-lO

7.一个圆上有5个不同的点，以这5个点中任意3个为顶点的三角形共有（）

A.60个

B.15个

C.5个

D.10个

8.某学校为新生开设了4门选修课程，规定每位新生至少要选其中3门课程，则一位新生不同的选课方案共有

A.7种

B.4种

C.5种

D.6种

9.已知点A（－5，3），B（3，1），则线段AB中点的坐标为（）

A.（4，－1）

B.（－4，1）

C.（－2，4）

D.（－1，2）

10.从2、3、5三个数中，任取两个数，可组成()个真分数．

A.2

B.3

C.4

D.5

11.若a

A.见图A

B.见图B

C.见图C

D.见图D

12.函数f(x)＝2sin(3x＋π)＋1的最大值为（）

A.－1

B.1

C.2

D.3

13.在等比数列｛an｝中，若a3a4=10，则a1a6+a2a5=（）

A.100

B.40

C.10

D.20

14.函数的最小正周期为（）

A.

B.π

C.2π

D.4π

15.设甲有两个不相等的实数根，则()

A.甲是乙的必要条件，但不是充分条件

B.甲是乙的充分条件，但不是必要条件

C.甲是乙的充分必要条件

D.甲不是乙的充分条件，也不是必要条件

二.数学问答题(共3题)1.从一个正方体中截去四个三棱锥，得一正三棱锥ABCD，正三棱锥的体积是正方体体积的．

2.从椭圆上χ2+2y2=2的右焦点引一条倾斜45o的直线，以这条直线与椭圆的两个交点P、Q及椭圆中心。为顶点，组成△OPQ．

(I)求AOPQ的周长；

(Ⅱ)求AOPQ的面积．

3.从某公司生产的安全带中随机抽取10条进行断力测试，测试结果（单位：kg）如下：3722、3872、4004、4012、3972、3778、4022、4006、3986、4026则该样本的样本方差为___________kg2（精确到0．1）．

三.英语单项选择题(共25题)1.请选出下面划线部分读音不同的选项

A.contin[ue]

B.tr[ue]

C.d[ue]

D.val[ue]

2.材料题

C

Willitmatterifyoudon’ttakeyourbreakfastRecentlyatestwasgivenintheUnitedStates．Thosetestedincludedpeopleofdifferentages,from12to83．Duringtheexperiment,thesepeopleweregivenallkindsofbreakfastsandsometimestheygotnobreakfastatall．Specialtestsweresetuptoseehowwelltheirbodiesworkedwhentheyhadeatenacertainkindofbreakfast．Theresultssowthatifapersoneatsaproperbreakfast,heorshewillworkwithbettereffect(影响)thanifheorshehasnobreakfast．Thisfactappearstobeespeciallytrueifapersonworkswithhisbrains．Ifastudenteatsfruit,eggs,breadandmilkbeforegoingtoschool,hewilllearnmorequicklyandlistenwithmoreattentioninclass．Contraryto(与……相反)whatmanypeoplebelieve,ifyoudon’teatbreakfast,youwillnotloseweight．Thisisbecausepeoplebecomesohungryatnoonthattheyeattoomuchforlunch,andendupgainingweightinsteadoflosing．Youwillprobablylosemoreweightifyoureduce(减少)yourothermeals．

Whichofthefollowingisnottruetothepassage

A.Poorbreakfastsaffect(影响)thosewhoworkwithbrain

B.Morningdietmaycauseonetogetfatte

C.Reducinglunchandsupperisoflessvalueinweight-losin

D.Eatinglessinlunchandsuppermayhelptoloseweigh

3.HespokesoquicklythatIdidnot______whathesaid.

A.catch

B.accept

C.take

D.listen

4.通读下面的短文，掌握其大意。然后，从每小题的四个选择项中选出可填入相应空白处的最佳选项。

EleanorRooseveltwasthewifeofAmerica’s32ndpresident,FranklinRoosevelt.Shehelpedherhusbandinmanywaysduringhislong21life.Shealsobecameoneofthemost22womeninAmerica.Shefoughtforequalrightsforallpeople.

EleanorwasborninNewYorkCityin1884.Herfamilyhadgreatwealth.ButEleanordidnothaveahappy23.Herparentsdiedwhenshewasveryyoung.Shewasraisedbyhergrandmother.Eleanor24thatasachild,hergreatesthappinesscamefromhelpingothers.

Intheearly1900s,manypeoplewereworriedabouttheproblemsof25peoplewhocametoAmericain26ofabetterlife.Eleanorcouldnot27howpeoplelivedinsuchpoorconditionswhilesheandsomeothershadsomuch28.

Aftershefinishedschool,Eleanorbegan29childrentoreadandwriteinoneofthepoorestareasofNewYorkCity.Shealsolookedinto30whereworkersweresaidtobebadly31.Shesawlittlechildrenoffourandfiveyearsoldworkinguntilthey32tothefloor.Shebecameinvolved（参与）withotherwomenwho33thesameideasaboutimprovingsocialconditions.

FranklinRooseveltbegan34EleanorwhenhewasinNewYork.Theygot35in1905.Inthenextelevenyears,theyhadsixchildren.TheRooseveltmovedtoWashingtonD.C.in1913.

____.

A.sank

B.run

C.jumped

D.dropped

5.Aroundtheworldmoreandmorepeoplearetakingpartindangeroussportsandactivities．Ofcourse，therehavealwaysbeenpeoplewhohavelookedforadventure--thosewhohaveclimbedthehighestmountains，explored（探险）unknownpartsoftheworldorsailedinsmallboatsacrossthegreatestoceans．Now，however，therearepeoplewhoseek（寻找）animmediatethrill（令人激动的事情）fromariskyactivitywhichmayonlylastafewminutesorevenseconds．

I?wouldconsiderbungee（蹦极）jumpingtobeagoodexampleofsuchanaetwity．Youjump?fromahighplace（perhapsabridgeorahotairballoon）200metresabovethegroundwithanelas-tic（弹性的）ropetiedtoyourankles．Youfallatupto150kilometresanhouruntiltheropestopsyoufromhittingtheground．Itisestimatedthat2millionpeoplearoundtheworldhavenowtriedbungeejumping．Otheractivitieswhichmostpeoplewouldsayareasriskyasbungeejumpinginvolve（包括）jumpingfromtallbuildingsanddivingintotheseafromthetopofhighcliffs．

Whydopeopletakepartinsuchactivitiesasthese?Somepsychologists（心理学家）suggestthatitisbecauselifeinmodernsocietieshasbecomesafeandborin9．Notverylongago，people’sliveswereconstantlyunderthreat．Theyhadtogooutandhuntforfood，diseasescouldnoteasilybecured，andlifewasacontinuousbattleforsurvival．

Nowadays，accordingtomanypeople，lifeofferslittleexcitement．Theyliveandworkin?comparativelysafeenvironments;theybuyfoodinshops;andtherearedoctorsandhospitalstolook?afterthemiftheybecomeill.Theanswerforsomeofthesepeopleistoseekdangerinactivitiessuch?asbungeejumping.

Asuitabletitleforthearticleis__________.

A.DangerousSports--WhatandWhy?

B.TheBoredomofModernLife

C.BungeeJumping--IsItReallyDangerous?

D.TheNeedforExcitement

6."It′snouse,Mum,"saidJohnny."I′mjustnogoodatdancing."

"You′vegottokeeptrying.Tonightwillbe?21,dear.TryaturnwiththatprettyLisette."Johnny?22.EverySaturdaynightusedtobethebestoftheweek.Heandhisparentswenttothe?23?attheClub,wherehishero,Alcide,playedtheaccordion(手风琴)withtheband.Butlatelyeverythinghadchanged.NowthatJohnnywasolder,hewas?24?todancewithagirl!25?JohnnyandhisparentsarrivedattheClub,musichadalreadystarted.Johnnygotuphis?26?toapproachLisette."MayIhavethisdance?"Johnnyasked."That′sallright,"saidLisette.JohnnystruggledtokeepupwithLisette′s?27?steps,buthewasalwaysonebeatbehindher.ThenJohnnyheardhisfriendPierresay,"Look!Johnnyhastwoleftfeet!"Laughterburstfromthecrowd.Johnny?28?andranoutside,determinednevertogotoanotherdance.

ThenextSaturday,AlcidedrovetoJohnny′shouseforsomepotatoes.HehappenedtohearJohnnyplayingtheaccordion.Alcide′seyes?29."Bringthataccordionandplaysomesongstonight,"Alcidesaid.Thenhedroveoff,leavingJohnnystaringopen-mouthed?30him.

AttheClub,JohnnyscannedthecrowdforLisetteand?31?her.ThebandplayedforalongtimebeforeAlcidesaid,"Dearfriends,Igota?32?foryoutonight.YoungJohnnyisgoingtojoinus!"Trembling,Johnnysteppedupontheplatform,hiseyesonthefloor.Hebegantoplay,andthebandjoinedinbehindhim.Whenthesongended,heheardcheers.Johnnykeptplayinguntilthedancewas?33"Youdidafinejobtonight.PlaywithusagainnextSaturdaynight,"Alcidesaid."Yes,sir!"saidJohnny.34?hewentoutside,JohnnysawLisetteandherfriendsnearthedoor.Lisettesteppedforward,smiling,"Youplayedreallygoodtonight!"shesaid.

"Thankyou,"Johnnyblushed(脸红).Ashewalkedon,Pierre?35?movedoutofthewayforhimtopass.

Johnnypattedhisaccordion.Cometothinkofit,inhiswholelife,hehadneveronceseenAleideoutonthedancefloor.

第32题答案是

A.surprise

B.puzzle

C.story

D.joke

7.Youknowwhatahotelis,ofcourse.Andperhaps,youalsoknowwhatacondois－aresidential（居住的）buildingdividedintoseparateunitsthatareownedbydifferentpeople.WhatyoumaynotknowisthatinsomeU.S.cities,thetwohavecometogetherintosomethingcalleda"condohotel".

Somecondohotelscannowbefoundinbeachandmountaintownsandafewsmallcities.However,noneismorefamousthanthegreat105-year-oldPlazaHotelinNewYork,onFifthAvenueacrossfromCentralPark.ThePlazaclosedforrepairin2005.Whenitreopenedtwoyearslater,morethanhalfofithadbeenchangedintooneofthesemoderncondohotels.

Here'showitworks:Youbuywhatequalstoanapartment（公寓）.Ifit'satThePlaza,itwillcostyoubetween$1.5millionand$9million.Soyouownapartofthebuilding.Butthere'ssomeinconvenience.Youmaystaytherenomorethan120daysayear.Therestofthetime,thehotel'sworkerscanbookguestsintoyourplace,justastheywouldintheregularhotel'srooms.Soifyou'reluckyandrich,youcannowliveinreallyspecialquartersuptoalmostonethirdoftheyear,whileotherspayoffyourmortgage（房贷）therestoftheyear.

Sofar,agreatmanyofthenation'scondohotelunitshavebeenpurchasednotbyrichpeoplebutbyrichercompanies,includingforeignones.Theywantaniceplacefortheirbossestostaywhenthey'reintownorworkinglateattheoffice.

Acondoisaplacewherepeople____.（）

A.live

B.work

C.eat

D.study

8.Allthatcanbedone．

A.havebeendone

B.havedone

C.hasbeendone

D.hasdone

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．

Whatisthehugebarrelusedfor?（）

A.Holdwater

B.Holdwine

C.Taketheplaceofwinebottle

D.Emptybottles

10.通读下面的短文，掌握其大意。从每小题的四个选项中选出可填入相应空白处的最佳选择，并把它前面的大写字母填入左边括号里。

Mr．Joneswokeearlyonemorning，beforethesunhadrisen．Itwasabeautifulmorning，_21_hewenttothewindowandlookedout．Hewas_22_toseeaneatly-dressedandmid-agedprofessor，who_23_intheuniversityjustuptheroadfromMr．Jones‘house，comingthedirectionofthetown．Hehadgreyhairthickglasses，andwas_24anumbrella，amorningnewspaperandabag．Mr．Jonesthoughtthathemusthave_25_bythenighttrain_26_takingataxi．

Mr．Joneshadabigtreeinhisgarden，andthechildrenhadtiedalong_27_tooneofthebranches，sothattheycouldswingonit．

Mr．Jonessawtheprofessor_28_whenhesawtheropeandlookedcarefullyupanddowntheroaD．Whenhesawthattherewas_29_insight，hesteppedintothegarden（therewasnofence），puthisumbrella，newspaper，bagandhatnearlyonthegrassand_30_therope．Hepulledit_31_toseewhetheritwasstrongenoughtotakehisweight，thenranasfastashecouldandswungintothe_32_ontheendoftherope，hisgreyhairblowingallaround_33_．_34_heswung，sometimestakingafewmore_35_stepsonthegrasswhentheropebegantoswingtooslowlyforhim．

Atlasttheprofessorstopped，straightenedhistie，combedhishaircarefully，putonhishat，pickeduphisumbrella，newspaperandbag，andcontinuedonhiswaytotheuniversity，lookingasquietandcorrectandrespectableasonewouldexpectaprofessortobe．

（）

A.hard

B.high

C.heavily

D.greatly

11.通读下面的短文，掌握其大意。然后，从每小题的四个选择项中选出可填入相应空白处的最佳选项。

InnearlyeverytownorcitycentreintheUK,onmostdaysoftheweekyoucanfindoneormorepeoplestandinginthestreetsellingamagazine21TheBigIssue.Thesepeopleareall22,buttheyarenotbeggingformoney.23,theyaresellingthemagazineasameans（手段）of24asmallbutrespectableliving.

TheBigIssuemagazinewas25in1991byJonBirdandGordonRoddickafterthey26thatthereweremanyhomelesspeoplewhowere27onthestreetsofLondon.Onaprevious（之前的）28toNewYork,oneofthemhadseenhomelesspeoplesellinganewspaperknownasStreetNews29theydecidedtosetupsomething30intheBritishcapital.

Nowadays,TheBigIssuehas31allovertheUKandthereareevendifferentversions（版本）ofthemagazineindifferentpartsofthe32.Thesellersbuyeachmagazinefromtheorganizationforseventypenceandthensellittoa33foronepoundfifty.ByworkingwithTheBigIssue,manypeoplehavebeen34toescapefromhomelessness,and35manyofthemhavemovedontonewjobsandnewlives.

____.

A.enjoying

B.changing

C.improving

D.making

12.Springisbyfar___________timetovisittheisland.

A.thebetter

B.better

C.thebest

D.best

13.Theseaisverybi9．Lookatamapoftheworld．Thereislesslandthansea．Theseacoversthreequartersoftheworld．

Theseaisverydeepinsomeplaces．Thereisonespot，nearJapan，wheretheseaisnearly11kilonetresdeep．Thehighestmountainintheworldisabout9kilometreshigh．IfthatmountainwereDutintotheseaatthatplace，therewouldbe2kilometresofwateraboveit．

Ifyouhaveswuminthesea,youknowthatitissalty.Youcantastethesalt.Rivers,whichflowintothesea,carrysaltfromthelandintothesea.Somepartsoftheseaarelesssaltythanotherparts.Thereisonesea,calledtheDeadSea,whichisverysalty.Becauseitisverysalty,swimmerscannotsink!FishcannotliveintheDeadSea.

Inmostpartsofthesea,thereareplentyoffishesandplants.Somelivenearthetopofthesea.

Otherslivedeepdown.Therearealsomillionsoftinylivingthingsthatfloatinthesea.Thesefloatingthingsareverysmall.Itishardtoseethem.Manyfishlivebyeatingthem.

Theseacanbeverycold.Divers,whodivedeepdowninthesea,knowthis.Onthetopthewatermaybewarm.Whenthedivergoesdownwards,theseabecomescolderandcolder.

Anotherthinghappens.Whenthedivergoesdeeper,thewaterabovepressesdownonhim.Itsqueezeshim.Thenthediverhastowearclothesmadeofmetal.

Thedeeperdiversgoesdowninthesea,.

A.thewarmertheseabecomes

B.thecoldertheyfindtheseais

C.thelessthewaterabovepressesdown

D.theheaviertheirclothesmustbe

14.通读下面的短文，掌握其大意。然后，从每小题的四个选项中选出最佳选项。

Ihavebeenhearing-impairedinmylifesinceIwasfiveyearsold.Puttingonhearingaidsinthemorninghasbeenjustas21asbrushingmyteeth.HoweverIneverbelievedthatitshouldlimitmy22inmyway.

Duringmy17yearsIhavemetmanypeoplewhodon’tknowabout23disabilitiesanddealwith24bystereotypingme.Myteacherwouldnotletmesitpastthesecondrowbecausethey25Iwouldnotbeabletohear.Peopletendtospeak26thannormalwhentheysee.mythickplastichearingaidsinmyears.However,myhearingdisabilityhasmademeastrongerperson.BecauseIwearheatingaidsIhavetoprovethatIamnot27ormentallylimited.Ihavetoworkharderandearntopgradesinschooltoearnthe28ofmyteachers.Inshorts,I'vehadtorunfaster,catchbetterandscoremorepointstoproveIamnotphysically29.

Idon'tfitinwithpeoplewhoaredeafand30asawaytocommunicate.Iconsidermyselfnodifferencefromanyoneelse.AndIamnot"halfdeaf"withmyhearingaids31;Icanhearjustaswellasanyoneelse.

InmystruggletoproveIam32tomynon-disabledIhavemademyselfbetterthantheaverageteenager.Iwontheall-star33onmysoftballteam.Ihavemademyselfa34throughmypublishedpoetryandarticles.

Insteadofgivingup,IhaveproventhatIcandoanythingIwant.ItrulybelieveIwouldnotbethe35personIamtodayifIdidnothaveahearingdisability.

____.

A.worried

B.proved

C.understood

D.realized

15.Oureatinghabitsareveryimportantforgoodhealthandastrongbody.Therearetimeswhen?mostofuswouldrathereatsweetsandice-creamthanmeatandrice.Sweetsandice-creamarenot?badifweeatthemattheendofameal.Ifweeatthembeforeameal,theymaytakeawayourappe-tite（食欲）~Itisimportantforustoeatourmealsatthesametimeeachday.Whenwefeelhungry,itisasignthatourbodyneedsfood.Whenwefeelangryorexcited,wemaynotwanttoeat.Alongtimeago,inEngland,somejudgesusedtodecidewhetheramanwastellingthetruthbygivinghimsomedrybread.Ifthemancouldnoteatthebread,itshowedthathewastellinglies.Althoughthisseemsverystrangeandratherfoolish,itisindeedaverygoodwayoffindingoutthefact.Amanwhoisworryingaboutsomethinghasdifficultyineatinganythingdry.Becauseheisworrying,heloseshisappetiteanddoesnotwanttoeat.

Itisgoodtoeatsweetsandice-cream__________.

A.whenwearehungry

B.whenwewantto

C.afterthemeal

D.beforethemeal

16.Jamesgotlostinthecity，__________hehadtoaskforhelp．

A.or

B.so

C.but

D.for

17.Thisisnotadiet（减肥食谱）orahard-exerciseprogram.Nobodycansticktothoseforlong.Instead,it’sasimplewaytomakeweightlossanaturalpartofthelifeyoualreadylive.Andguesswhat?It’sfun！Youdon’thavetogiveupthefoodsyouloveordoregularexercises.It’saboutbalancingcalories（平衡卡路里）intinywaysthatadduptobigbenefits.Youjustusesometricksthe“naturallythin”peopledo.Picktheonesyoulike,stickwiththem,andyou’llloseweightandbestrong！

TalkitUPEverytimeyoupickupthephone,standupandwalkaround.Heavypeoplesitonaveragetwoandahalfhoursmoreeverydaythanthinpeople,accordingtoastudy.

Getfacetime,weusee-mailsomuchthatwe’veforgottenwhatourcolleagueslooklike.Pickacolleagueortwowhositfarthestfromyou:anddeliver10ofthosedailymessagesinperson.Andgooutofyourway,gotoabathroomoracopymachineonanotherfloorandtakethestairs,ofcourse.

Thinkaboutyourdrinkconsiderbeerorwineinsteadofafrozendrink:Aglassofregularbeerhas140caloriesandaservingofwinehas126calories,whileastrawberrydaiquirihasabout300andamargarita340.

Reduceatotalof100calorieseachdayandyou’llbeabletoloseabout10poundsinayear.Thisisreallynotdifficulttodo.

Whichofthefollowingprobablyhasthemostcalories?（）

A.strawberrydaiquiri

B.regularbeer

C.margarita

D.wine

18.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

19.Whendidyoulastseeapolarbear?Onatriptoazoo,perhaps?IfyouhadattendedawinteractivityinNewYorkafewyearsago,youwouldhaveseenawholepolarbearclub.These"PolarBears"arepeoplewhomeetfrequentlyinwintertoswiminfreezingcoldwater.Thatday,theairtemperaturewas3℃,andthewatertemperaturewasabithigher.ThemembersofthePolarBearClubatConeyIsland,NewYorkareusuallyabouttheageof60.Membersmustsatisfytworequire-ments.First,theymustgetalongwellwitheveryoneelseinthegroup.Thisisveryimportantbecausetherearesomanydifferentkindsofpeopleintheclub.PolarBearsmustalsoagreetoswimoutdoorsatleasttwiceamonthfromNovemberthroughFebruary.

Doctorsdonotagreeaboutthemedicaleffectsofcold-waterswimming.Someareworriedaboutthedangersofaconditioninwhichthebody′stemperaturedropssolowthatfinallytheheartstops.

Otherdoctors,however,pointoutthatthereismoredangerofaheartattackduringsummerswimmingbecausethedifferencebetweentheairtemperatureandwatertemperatureismuchgreaterinsummerthaninwinter.

ThePolarBearsthemselvesaresatisfiedwiththebenefits(oradvantages)ofcold-waterswim-ming.Theysaythattheirfavoriteformofexerciseisverygoodforthecirculatorysystem(循环系统)becauseitforcesthebloodtomovefasttokeepthebodywarm.Cold-waterswimmersusuallyturnbrightredafterafewminutesinthewater.Apersonwhoturnsblueprobablyhasaverypoorcircula-torysystemandshouldnottrycold-waterswimming.

Themainbenefits(oradvantages)ofcold-waterswimmingareprobablymental.ThePolarBearslovetoswimyear-round;theyfinditfunandrelaxing.Asone70-year-oldwomansays,"WhenIgointothewater,Ipourmytroublesintotheoceanandletthemfloataway."

Thepassageismainlyabout.

A.agroupofcold-water-swimminglovers

B.thePolarBears'lifeinNewYork

C.doctors'ideasaboutcold-waterswimming

D.therequirementsofthePolarBearClub

20.Progresssofarhasbeenverygood.,wearesurethattheprojectwillbecompletedontime.

A.However

B.Otherwise

C.Therefore

D.Besides

21.材料题

通读正面的短文，掌握其大意。然后，从每小题的四个选择项中选出可填入相应空白处的最佳选择。

AShelterfortheHomeless

LastsummerIwasavolunteer(志愿者)atashelterforthehomeless,aplaceforhomelesspeopletosleepatnight．Iwasn’tworkingthatsummerandwas21onlytwoclassesinsummerschool,soIhadsome22time．

Threenightsaweek,I23inthekitchenoftheshelteralongwithfourothervolunteers．Weplannedandcookedfor45peoplehotmeals24vegetables,chicken,fishandfruit．Thehomelesspeopleneededthisgoodfoodbecausemanyofthemusuallydidn’teatwell．

I25thisvolunteerwork,making26withthefourvolunteersinthekitchen．Onewasaveryniceelderlyhousewife,oneamovieactor,anotherayoungteacher,andtheotheracollegestudent,27me．

Italkedtoalotofthehomelesspeopleattheshelter．Theirlifestories28mewithsympathy(同情)．Someofthemhadproblemswithalcohol(酒精)ordrugswhileothersonlyhadbad29．Onewomanworkedforalmost30yearsforasmallcompany,andthenshelostherjob．Shelookedfora30job,butcouldn’tfindone,forshewastoo31．Shecoulddonothingbutsellherfurniture—sofas,chairs,andtables32shecouldpayforherfood．Thewomanluckonjobhunting,butshe33couldn’tfindone．Shehadnomoneyforher34andhadtosleepinhercar．Thenshehadtosellhercar．Alone,afraidand35,,shefinallycametotheshelter．

（）

A.also

B.still

C.almost

D.even

22.Everyhumanbeing,nomatterwhatheisdoing,givesoffbodyheat.Theusualproblemishowtodisposeofit.ButthedesignersoftheJohnstowncampusoftheUniversityofPittsburghsetthemselvestheoppositeproblem－howtocollectbodyheat.Theyhavedesignedacollectionsystemwhichutilizesnotonlybodyheat,buttheheatgivenoffbysuchobjectsaslightbulbsandrefrigeratorsaswell.Thesystemworkssowellthatnoconventionalfuelisneededtomakethecampus'ssixbuildingscomfortable.

Somepartsofmostmodernbuildings－theatersandofficesaswellasclassroomsaremorethanamplyheatedbypeopleandlightsandsometimesmustbeair-conditionedeveninwinter.Thetechniqueofsavingheatandredistributingitiscalled“heatrecovery.”Afewmodernbuildingsrecoverheat,buttheUniversity'ssystemisthefirsttorecoverheatfromsomebuildingsandreuseitinothers.

Alongtheway,pithaslearnedagreatdealaboutsomeofitsheatproducers.Theharderastudentstudies,themoreheathisbodygivesoff.Malestudentsemitmoreheatthanfemalestudents,andthelargerastudent,themoreheattheproduces.ItistemptingtoconcludethatthehottestprospectfortheJohnstowncampuswouldbeahardworking,overweightmalegenius.

Thephrase“eveninwinter”（inline8）mostnearlymeans____.（）

A.ifthewinterisespecially

B.duringalloftheyearexceptthewinter

C.inthewinteraswellasinotherseasons

D.duringtheeveningsinthewinter

23.通读下面的短文，掌握其大意。然后每小题的四个选项中选出可填入相应空白处的最佳选项。

Enoughsleepisimportanttohealth.Theamountofsleep21dependsontheageofthepersonandtheconditionsinwhichsleep22.Theyoungmayneedmoresleepthantheold,butgenerallyeighthoursareenoughforthehealthofgrown-ups.Somecan23withlessthanthisamountbut24mayneedmore.Everypersonknowshisownneed．Itisthenamatterofhowto25it.Sleepshouldalwaysbeenoughtomakeonerelaxed（松弛）andreadyfor26work.

Freshairis27tosoundsleep（酣睡）.Itisnotwithoutreasonforsomepeopleto28thatitispracticaltosleepintheopenair.29apersoncankeephimselfwarm,out-of-doorsleepingprobablygivesthebody30completerelaxation.

Abilitytosleepislargelyahabit.Theconditionsreferredtoonlyleadtosleep.Out-of-door31,agoodhabitofregulardrinkingandtheavoidanceoflateeatingand32areallhelpfultosoundsleep.Suchfactorsarelargelywithinthecontrolofanyperson.Abathat33,neitherhotnorcoldbutof34temperature,maybehelpfultosleep.Sleepingpillsshouldneverbetakenexceptwhensuggested