2016-2023年贵州航空职业技术学院高职单招（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年贵州航空职业技术学院高职单招（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.抛物线x2＝4y上一点A的纵坐标为4，则点A与抛物线焦点的距离为（）

A.2

B.3

C.4

D.5

2.设log57＝m，log25＝n，则log27＝（）

A.见图A

B.见图B

C.见图C

D.见图D

3.在（2-x）8的展开式中，x5的系数是（）

A.448

B.1140

C.-1140

D.-448

4.函数f(x)＝2sin(3x＋π)＋1的最大值为（）

A.－1

B.1

C.2

D.3

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.已知直线l1与l2的夹角是()

A.45o

B.60o

C.120o

D.150o

7.已知偶函数y=f(x)在区间[a，b](0

A.增函数

B.减函数

C.不是单调函数

D.常数

8.i25+i15+i40+i80=（）

A.1

B.-1

C.-2

D.2

9.已知函数f（x）＝ax2＋bx＋3a＋b是偶函数，且其定义域为[a－1，2a]，则（）

A.见图A

B.见图B

C.见图C

D.见图D

10.平面内有12个点，任何三点不在同一直线上，以每三点为顶点画一个三角形，一共可画三角形（）

A.36个

B.220个

C.660个

D.1320个

11.使函数y＝x2－2x－3为增函数的区间是（）

A.(1，＋∞)

B.(－∞，3)

C.(3，＋∞)

D.(－∞.1)

12.已知向量a⊥b，a=（-1，2），b=（x，2），则x=（）

A.4

B.-8

C.8

D.-4

13.下列函数在各自定义域中为增函数的是（）

A.见图A

B.见图B

C.见图C

D.见图D

14.已知直线l⊥平面α，直线m属于平面β，下面四个命题：

其中正确的两个命题是()

A.(1)与(2)

B.(3)与(4)

C.(2)与(4)

D.(1)与(3)

15.函数的最小正周期为（）

A.

B.π

C.2π

D.4π

二.数学问答题(共3题)1.

（1）求{an）的通项公式；

（2）若ak=128，求k．

2.某射手射击一次，击中目标的概率为0.9，他连续射击4次且各次射击是否击中相互之间没有影响，那么他第2次未击中，其他3次都击中的概率是___________

.

3.为了检查一批零件的长度，从中抽取10件，量得它们的长度如下（单位：mm）：22.36、22.35、22.33、22.35、22.37、22.34、22.38、22.36、22.32、22.35则样本的平均数（结果保留到小数点第二位）为____________，这组数据的方差为__________.

三.英语单项选择题(共25题)1.Whenyouarelittle,thewholeworldfeelslikeabigplayground.IwaslivinginConyers,Georgiathesummeritallhappened.Iwasasecondgrader,butmybestfriendStephaniewasonlyinthefirstgrade.Bothofourparentswereatworkandmostofthetimetheyletusgoourownway.

ItwasahotafternoonandwedecidedtohaveanadventureinStephanie′sbasement.AsIopenedthebasementdoor,beforeuslaythebiggestroom,fullofamazingthingslikeguns,dolls,andoldclothes.Irandownstairs,andspottedaredsteelcan.Itwaspaint.Ilookedbeyonditandtherelayevenmorepaintinbrightcolorslikepurple,orange,blueandgreen.

"Stephanie,Ijustfoundusaproject,fortheday.Getsomepaintbrushes.Wearefixingtopaint."ShescreamedwithexcitementasItoldherofmysecretplansandimmediatelywegottowork.Wegatheredallthebrusheswecouldfindandmovedallofourmaterialstomyyard.Thereontheroadinfrontofmyhouse,wepaintedbitstripes（条纹）ofcolorsacrossthepavement（人行道）.Stripebystripe,ourcolorsturnedintoabeautifulrainbow.Itwasfantastic!

Thesunwasstartingtosink.IsawacarinthedistanceandjumpedupasIrecognizedthecar.Itwasmymother.Icouldn′twaittoshowhermymasterpiece.Thecarpulledslowlyintothedrivewayandfromthelookonmymother′sface,IcouldtellthatIwasindeeptrouble.Mymothershutthecardoorandwalkedtowardsme.Hereyesglaring,sheshouted,"Whatintheworldwereyouthinking?Iunderstoodwhenyoumadecastlesoutofleaves,andclimbedtheneighbors′trees,butthis!Comeinsiderightnow!"Istoodthereglaringbackatherforaminute,angrybecauseshehadinsulted（侮辱）myart.

"Nowgotocleanitup!"MotherandIbegancleaningtheroad.TearsrandownmycheeksasIsawmybeautifulrainbowturnintoblackcement.

Thoughyearshavenowpassed,Istillwonderwheremy?rainbow?hasgone.Iwonderif,maybewhenIgetolder,Icanfindmyrainbowandneverhavetobrushitaway.Iguessweallneedsortofrainbowtobrightenourlivesfromtimetotimeandtokeepourhopesanddreamscolorful.

Itcanbelearnedfromthepassagethatparentsshould

A.encouragechildrentopaint

B.valuefriendshipamongchildren

C.discoverthehiddentalentinchildren

D.protectratherthandestroychildren'sdreams

2.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。

Itwasthelatespringof1979,ahotSaturdayafternoon.Hundredsofussat21,sidebyside,inrowsofwoodenchairsonthemaincampuslawn（草坪）.We22bluerobes（毕业生长袍）.Welistenedcarefullytolong23.Whentheceremony（典礼）was24,wethrewourcapsintheair,andwewereofficiallygraduatedfromcollege.

Afterthat,IfoundMarneSchwartz,fessor,andintroducedhimtomy26.Hewasasmallmanwhotooksmallsteps,asifa27windcould,atanytime,28himupintotheclouds!Histeethwereingoodshape.Whenhesmileditwasasifyouhadjust29himthefunniestjokeonearth.

HetoldmyparentshowI30everyclasshetaught.Hetoldthem,“Youhavea31boyhere.Hehelpedmealot.”Shybut32,Ilookedatmyfeet.Beforeweleft,I33Mr.Schwartzapresent,abriefcasewithhisnameonthefront.Ididn'twanttoforgethim.34Ididn'twanthimtoforgetme.HeaskedifIwouldkeepin35,andwithouthesitation（犹豫）Isaid,“Ofcourse.”Whenheturnedaround,Isawtearsinhiseyes.

____.

A.strong

B.north

C.warm

D.cold

3."Troublemaker"waswhatwasgiventomyfriendPeterbyhisteachers.Theyalsosaidthathehadnofutureandnohope!ButnowIsuggestthatanyonewhosaidthatshouldsay"sorry"tohim.

PeterfinishedGradeNine,andthenhewenttostudyatatechnicalcollege.Hebecamealeaderofagroupofbadboys.Aftergraduationhehadnothingtodo,sohejusthungaroundbythemarketwithhisfriends.

Itlookedlikenothingcouldchangehislife.Itwasnotuntilthedaythathisfatherdied.Helefttheboysandwenttohelphismotherwhosoldfoodbytheroadside.

Hereallypitiedhismumandwantedtodosomethingtosupporther.Helovedreadingcartoon（漫画）booksandhadbeencollectingthemforyears,sohedecidedthatheshouldsellthem.Soonherealizedthathisbookswereverypopular.Sohemadeuphismindtosetuphisownbusiness.Hewentaroundbuyingcartoonbooksfromotherpeople.Heboughtthemfor25%andthensoldthemforhalfprice.

Thesedays,hedoesn'thavetogoaroundlookingforcartoonbooksbecausetherearealwayspeoplecomingtohisshoptoselltheiroldones.Henowhasamonthlyincomeofabout55,000baht（秦铢）.

Hewasa"troublemaker"tohisteachersbutheisaherotome.Ifyouarejudgedbyyourteachersasa"badstudent",Isuggestyouignorewhattheysay.Justdoyourbestineverything.Don'tgiveupsoeasily.Believeme,onedayyoucouldbesuccessful,too.

WhatdidPeterdoafterhisfatherdied?（）

A.Helearnttodrawpictures

B.Heworkedatamarket

C.Hecontinuedhiscollegestudies

D.Hestartedhisownbusiness

4.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."

ImmediatelyafterRobertfoundthecarsinkingintothepool,he____.（）

A.jumpedintothepool

B.shoutedtoletEvelyncalltherescueteam

C.rantothenearesttelephone

D.rushedintoGraham'shousetofindhiswife

5.Davidwon'tcometomyweddingparty____Isendhimaninvitation.（）

A.when

B.unless

C.as

D.after

6.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。

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.Sleepingpillsshouldneverbetakenexceptwhensuggestedby35.

____.

A.fallsdown

B.breaksout

C.wakesup

D.takesplace

7.BrightonisapopularseasidetownonthesouthcoastofEngland.Notlongago,somepolicemenwerevery?21.Therehadbeenseveral,seriousaccidents?22?bymotoristsdrivingtoofast.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30题答案是

A.running

B.walking

C.driving

D.climbing

8.—I‘vebeentoldtopaytherent.

—Butit‘salreadybeenpaid.It______bysomeoneelse.

A.mustbe

B.maybe

C.mustbepaid

D.musthavebeenpaid

9.WhichofthefollowingisNOTrequiredforenteringmostprivateschools.

A.entranceexaminations

B.takingpartinmanyactivities

C.GPA

D.collegeprepclasses

10.

A.见图A

B.见图B

C.见图C

D.见图D

11.GeorgeandMargaretandtheirchildren21at140DavisStreet,22thestreetfromasmallpark．Theirhouseisjustoffthemainroad．Georgeusuallygoestoworkbybus,butsometimeshegoes23hiscar．Thechildrenusuallygotoschoolbybus．

TheGlenns'houseis24hiddenamongthetrees．Ithassmallbushes(灌木)plantedaroundit．Thereisafence25itandthehousenextdoor．Itisatwo-storeyhouse,26thelivingroom,diningroomandkitchen(厨房)onthefirstfloor,andthebedroomsandbathroomonthesecondfloor．

TheGlennsspendalotoftimeathome．27nowtheyareatdinner．Conversation(谈话)attheGlenns'houseisusuallylivelyatmealtime．Thechildrenarediscussingtripstheywouldliketotake．

Susan,whohasnever28onaplane,says,"I'dliketo29aplanetoCalifornia．"Henry,whoiselder,thinksitwouldbefuntobeona30,headingforadventure(冒险)inAfrica．Teddy,theyoungest

child,says,"Iwanttogoaroundtheworldonatrain．"Hiselderbrotherandsisterarestilltryingto31tohimwhythisisnotpossible．32theirmothersays,"Children,you'vespenttoomuchtimeatthetable．HenryandSusan,goand33yourhomework．Teddy,it'stimeyouwereinbed．"

Soonthereissilencethroughoutthe34．Teddyisinbed,SusanandHenryareintheirroomsstudying,andMr．andMrs．Glennsareintheirlivingroom,35Georgeissittinginhisfavorite(最喜欢的)chair,readingthepaperandMargaretissittingonthesofa,doingsomesewing．

第（31）题答案

A.explain

B.say

C.tell

D.speak

12._______amicroscopewecanseedifferentkindsofthingsthatareunabletobeseenbyournakedeyes.

A.Intermsof

B.Inplaceof

C.Bymeansof

D.Byfar

13.Itmaybepointedoutthatwarfare(战争)aspracticedbymanhasnoparallelinnature.Thisistosaythatwithinthemorehighlydevelopedanimalpopulationsofthisearth,thereisnotnow,norhastherebeensimilardestructionwithinaspecies(物种)itself.Infact,onehastogotothelowliestformsofanimallife,suchascertainkindsofants,tofindanythingcomparabletohumanwarfare.Itisacuriousfactthatmankindappearstogivethekillingofhisownkindagoodreasonbyimagingthatitisa"lawofnature".Therearenowalotofwrongideasaboutthelawsofnature,ofwhichthisisoneofthemostincorrectandfateful(致命的).Politicalbeliefshavebeenbaseduponitwithresultsthathavecomeneartodestroyinghumancivilization.Thetheorythatwarisabiologicalnecessity,thatitisnature′smethodofcontrollingpopulationandbelievinginthesurvival(生存)ofthestrongandtheelimination(灭亡)oftheweak,istotallywrongandinsupportable.Withinthelastcentury,whenwarshavebeencommonallovertheworld,thehumanpopulationoftheearthhasalmostdoubled.

Theauthorofthispassageseemstobethe"lawofnature".

A.against

B.infavorof

C.uncertainof

D.verymuchinterestedin

14.Thekeyboardofatypewriterreferstothesetofkeysinit.Mosttypewritershave"qwerty"key-boards.Thenamecronesfromthefirstsixlettersontheboard′ssecondline.The"qwerty"boardwas?setupbyC.L.Sholes,whowasthefirstmantomakeareallygoodtypewriter.

Someletters,suchasSandT,areusedtogetheragreatdealinEnglish.Sholesplacedsuch?pairsofletterfarapartonhiskeyboard.Thismadeitharderfortypiststolearnthekeyboard.Butit?helpedkeeptypewritersfromjamming.Onearlymachinesthebarsholdingthelettersoftencaughton?eachotherwhenmovingquickly.

Sholesmadethenameofhismachineeasytotype.lieplacedonthesamelineallthelettersof?theword"type"and"writer".

The"qwerty"boardisnamedforthe__________.

A.manwhosetitup

B.companythatsoldit

C.orderofsixofitsletters

D.lettersusedthemostinEnglish

15.材料题

C

Thetrickinfoodphotographyistoshowthefoodlookingfresh，somanydisheshavestand-ins，justasmoviestarsdo．“WhenIgetmylightsandcamerassetup，Iremovethestand-inandputintherealthing，”explainsRayWebber，whophotographsfoodformagazineadvertisements．“SometimesIhavetobrushthemeatwithitsjuicesbecauseitmayhavedriedoutabit．AandwhenI‘mshooting（拍照）somethingliketomatoes，IalwayscarrywatertospraythemwithdewjustbeforeIshoot．”

Shootingfoodoutdoorshasspecialproblems．“I‘malwaysworryingaboutfliesorwormscrawlingupaglass，”Webberexplains，“myworryisthatsomedayadogwillcomeupfrombehindandrunoffwiththefood．”OnceWebberwasshootingapieceofcheeseoutdoorsandneededsomethingtomakeitscolorbeautiful．Finallyhefoundit：aweedwithlovelyblueflowers．Whentheshotappeared，severalpeoplewerehorrified-theweedwasdeadlynightshade！

（）Justbeforebeingphotographed，somemeatsandvegetablesare_______．

Thesecondparagraphdealsmostlywiththe________．

A.differencesbetweenindoorandoutdoorphotography

B.problemsofoutdoorfoodphotography

C.waysofkeepingfoodfreshoutdoors

D.combinationsofcolorsoutdoors

16.DOnceuponatimeapairofcrows(乌鸦)werecontinuallyupsetbyacobra．Everyyearthesnakecrawledintotheirnesttoeattheyoungcrowsbeforetheylearnedtofly．Theyaskedtheircleverfriend,thejackal(豺)forhelp,whattodo．

“Donotdespair(绝望),”hetoldthem．“Wecannotstopthecobrabyforce,aswearenotstrongenough．Wewillhavetousecraft(计谋)todestroythatgreedy(贪婪的)beast,justdowhatItellyouandyouwillbesafe．”

Themalecrowflewobediently(驯从)offtotheriverwhereaprincess(公主)wasbathing,guardedbyallherservants．Hesnatchedupthemostbeautifulnecklaceleftontheshoreandflewawayjustoutofreachoftheangryservants．Oncetheywererunningstraightforthecobra’shome,hedashedaheadandsettledatthewindowpretendingtobelost．

Thecobraattackedatonce．“Stupidcrow,”hethought．“Heonlyjustmanagetoescape,butdroppedthisvaluablenecklaceinhishaste．WhatwillhiswifesayNowIwillbethemostmagnificentcobraintheworld．”However,nosoonerhadheputitonthantheservantsappearedandkilledhimtotakethepreciousthingback．

Thatyear,thecrow’sfamilygrewuphealthyandsafe．

Themoral(寓意)ofthisstoryis．

A.itisfoolishtoeatyoungcrow

B.nottoaskthejackalforhelp

C.itisbettertobecleverthantomakefriendswithsnakes

D.nottomakefriendswithsnakes

17.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.strong

B.useful

C.steady

D.clever

18.PassageThree

In2008，theUnitedStatesDepartmentofAgriculture(USDA)wantedtoknowifalltheschoollunchesservedtostudentswerehealthy．Theanswerwasabig，fatNO!

TheUSDAfoundthatmostAmericanschoolsservedluncheswithtoomuchfatandsalt．Theyalsofoundthatmostofthefruitsandvegetablesinthelunchescamefromcans(罐头)．Cannedfruitsandvegetablesarenotasgoodasfreshones．

TheUSDAgivesschoolsfoodandmoneytomakelunches．Butschoolsmakeuptheirownmenus．Somemakehealthylunches．Mostdonot．NowtheUSDAwantsallschoolstoservemorehealthylunches．TheywantschoolstofollowtheUSDA’sguidelinesforbalanced(均衡)meals．

MikeSanders，inchargeoftheUSDAin2008，saidtheUSDAshouldteachschoolworkershowtomakehealthierlunches．“Agoodschoollunchisjustasimportantasagoodtextbook，”Sanderssaid．Hesaidthatchildrenalsoneedtolearnabouthealthyfoods．

TheUSDAisworkingonanewprogram--FreshStart．Itwillgiveschoolsmorefreshfruitsandvegetables．FreshStartwillalsohelpschoolschangetheirlunchestomakethemhealthier．Tofindthebestwaytochangelunches，theUSDAheldmeetingswithparents，schoolleaders，doctors，andcooks．

ChildrenalreadyeathealthylunchesatChiefJosephSchoolinNorthSaratoga，Oregon．Theyhavewhole-wheatbreadwithlow-fatcheese,andlow-fatmilk．

Whatareschoolsrequiredtodotomaketheluncheshealthy?

A.Providebalancedmeals

B.Makeupnewguidelines

C.Designtheirownmenus

D.Cookwithmorevegetables

19.Lifegetsnoisiereverydayandveryfewpeoplecanfreefromnoiseofsomesortoranother.Itdoesn′tmatterwhereyoulive--inthemiddleofamoderncity,orafarawayvillage--thechancesthatyouwillbedisturbedbyjetaeroplanes,transistorradios,oilpoweredengines,etc.,arealmosteverywhere.Weseemtobegettingusedtonoise,too.Somepeoplefeelquitelonelywithoutback-groundmusicwhiletheyareworking.

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

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

Scientistshavediscoveredthatwhatpreventspeoplefromconcentratingis

A.anykindofnoise

B.greatchangesinlevelofnoise

C.backgroundnoise

D.variousbackgroundmusic

20.Theauthormentionsfood,toolsandpreciousmetalsandstonestogetherbecausetheyareall________.

A.usefulitems

B.articlesofvalue

C.difficultthingstoobtain

D.materialobjects

21.

A.见图A

B.见图B

C.见图C

D.见图D

22.I′llneverforgettheday__________Ibecameadoctor.

A.that

B.which

C.where

D.when

23.

A.见图A

B.见图B

C.见图C

D.见图D

24.Marywaslookingforashop____shecouldbuysomechocolate.（）

A.which

B.that

C.where

D.who

25.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。

Overthesummer,myfamilytookatriptoIcelandtoseethenaturalbeautyofit.LittledidI21Iwouldwakeuponemorningtohavemyeyesswelledup（肿胀）likeballoons!Iwasfrightened.Somanyquestionswere22throughmyhead.AmIallergic（过敏的）tosomething?WastheresomeIcelandicdiseasethatI23?TheonlyhelpIreceivedwassomeallergymedicine24aclinicnearby.Nothingwasworking.

Whenthetripwasover,lwenttoseemydoctor.Shegavemeeyedrops,butclearlytheyweren'tworththetimeor25andtheswellinggotworseandworse.

Ifinallydecidedthatitwouldbebestformeto26beingsosadandtakeiteasyandhavefun.Itwassummerafterall.Ihadafunnightwithmyfriendsasifnothingwas27.ThenextmorningIwokeupandwentto28howswollenmyeyeswere,onlytofindmyself29atmynormalface.Itwasamiracle（奇迹）I30askingmyselfwhyIhadn'tdonethatearlier.Wasbeingwithmyfriendsandhavingfunreallythe31tomyproblem?

TothisdayIstilldonotknowwhatIhad,and32doanyofthemanydoctorsthatI33duringthesummer.IwouldreallyliketogobacktoIcelandtoseetheNorthernLights,34IamverymuchfrightenedthatIamjustallergictothecountry.IhopeInever35havingsuchterribleswellinginmyeyeseveragain.

（）

A.finish

B.forgive

C.experience

D.consider

四.英语多项选择题(共5题)1.Veryfewofourbirdsstaywithustheyearround.Somecometousinthewinterfromthecold?north.Otherscomefromthesouthtospendthesummerwithus.Howdotheyknowtheway?Suppose?youweretoldtofindyourwaytoaplacehundredsofmilesaway,doyouthinkyoucoulddoit?

Yetbirdstravelovermountains,forests,lakesandevenacrosstheoceans,anddonotstrayfrom?thepath.Theyfindtheirwaybackinthespringtothesameorchard（果园）andtheverytreeswhere?theynestedthesummerbefore.

Itiswonderfulhowquicklybirdstravelsuchlongdistancesfromtheirsummerhomestotheir?winterones.Somebirdshavebeenknowntoflyhundredsofmilesinaday.Butotherstravelmuch?moreslowly.

Whydobirdsundertaketheselongjourneystwiceayear?Perhapscoldweatherandlackof?fooddrivethemfromusintheautumn,butwecannottellwhytheyleavethesunnysouthtocome?backtousinthespring.Weknowonlythatmanyofthemliketomaketheirnestsandreartheir?younginthenorth.

Wearesorrytoseethemgo,butweknowthatwhenwinterisovertheywillcomebacktous.

Howfardobirdsusuallytravelfromtheirsummerhomestotheirwinterones?

A.Abouthundredsofmiles

B.Aboutthousandsofmiles

C.Thedistancethattakesabirdtoflythewholemorning

D.Thepassagedoesnottellus

2.E-mailorelectronicmail,isconsideredasthemoderncommunicationinthenewage.Itiscarriedoutincomputersallovertheworldbymillionsofusers.Inthisinvisibleworldasmanypeo-plecallit,theuserscansendandreceiveletterstoandfromeverycorueroftheearth.Theysharethoughtswithpenpals(笔友)inNewZealand,askstrangersinBombay(孟买)questions,debatewithbusinessmaninManhattan.Allofthesearejusthappeningincomputersasfastasthetravellingofthelight,nowritingandspeaking,nopaperandstampsarenecessary.

E-mailisapipelinetothousandsofexpertsoneverything;itisameansofmeetingpeoplewithsimilarinterestsorproblems.Butitisnotalivetalk--arealconversationlikethoseintelephones.

E-mailerscomposelettersatleisureontheircomputers,thensendthembyphonelinetoanon-lineservice,andthentheygoforwardtotherightplace.Aresponsecanbebackwithinhours,dependingonhowoftentherecipient(接受者)checksin.Avastglobalnetworksofon-lineservicesforE-mailhasbeenbuilt.AlotofpeopleareregularlyusingthisserviceintheUSA.PeoplebelievethatE-mail,thecomputerizedexchange,wouldcreatefriendshipandbusinessdevelopments,andwouldchangepeople′slifeintheworld.

E-mailorelectronicmail,isconsideredasthemoderncommunicationinthenewage.Itiscarriedoutincomputersallovertheworldbymillionsofusers.Inthisinvisibleworldasmanypeo-plecallit,theuserscansendandreceiveletterstoandfromeverycorueroftheearth.Theysharethoughtswithpenpals(笔友)inNewZealand,askstrangersinBombay(孟买)questions,debatewithbusinessmaninManhattan.Allofthesearejusthappeningincomputersasfastasthetravellingofthelight,nowritingandspeaking,nopaperandstampsarenecessary.

E-mailisapipelinetothousandsofexpertsoneverything;itisameansofmeetingpeoplewithsimilarinterestsorproblems.Butitisnotalivetalk--arealconversation