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2022年陕西省铜川市公共英语五级(笔试)测试卷(含答案)学校:________班级:________姓名:________考号:________
一、1.ListeningComprehension(15题)1.Ourhumanfriendssometimesmaymakeusbored,butthefriendsinbooksmayalsobehurtbyus.
A.TrueB.Fasle
2.Whatdoesrepetitionofideasmean?
3.Thetalkismainlyabouttheimportanceof"feltimages".
A.TrueB.Fasle
4.Itsoundsabitunscientificthatagoodmanageris______ratherthan______.
5.PartB
Directions:Youwillhear3conversationsortalksandyoumustanswerthequestionsbychoosingA,B,CorD.YouwillheartherecordingONLYONCE.
听力原文:Right,everybody.WelcometoCentralCollegelibraryservices.Myname'sKathyJenkins.I'llgiveyouabriefintroductiontothelibrary.Wehaveawell-stockedbankofresourceswhicharelocatedinthreemainplaces:thelibraryitself,withbooksandperiodicals;theself-accesslanguagecentre,withaudioandvideomaterial;andthemicro-computerlab.I'llstartwiththemicro-computerlab,ormicro-labaswecallit.Itisfittedwith24personalcomputers.
Ifyouareamemberofthelibrary,youmayborrowCALLdiscsinFrench,German,Italian,SpanishandRussianaswellasEnglish.Bytheway,CALLstandsforcomputeraidedlanguagelearning:C-A-doubleL,"CALL",forshort.Youmayalsoborrowarangeofwordprocessinganddesktoppublishingpackages.Alldisksare,ofcourse,strictlyforuseinthemicro-labonly.Ifyouwishtoprintanythingyoushoulduseoneofthefivemachinesaroundtheoutsideoftheroom.Fourareconnectedtodotmatrixprinters,oneisconnectedtothelaserprinter.Ifyouwantabetterqualityprintoutfromthelaserprinter,comeandseemeoranyofthelibrarystaff.Dot-matrixprintoutsarefreebutthereisachargeforusingthelaserprinter.Thereisalwaysaqueuetogettotheterminalstowardstheendofterm.Comeinandgettoknowhowtousethecomputersearlyinthetermandusethemregularly,ratherthanjustbeforeexamsandessaydeadlines,inordertoavoiddelayordisappointment.Trainingsessionsareheldonaregularbasis,onthefirstandthirdThursdayofeachmonth,andarefreetofull-timestudentsofthecollege.Seeyouthere.Now,anyquestions?
Whatdoesthespeakersuggestthatthestudentsshoulddoduringtheterm?
A.Consultwithherfrequently.
B.Usethecomputerregularly.
C.Occupythecomputerearly.
D.Waitforone'sturnpatiently.
6.WhogavedairyproductstothenativeAmericans?
7.听力原文:Iwanttotalktodayaboutsomestudies.Theyseemtoindicatethatthereisastartlingworld-widedeclineinthenumberofamphibians,suchasflogs,toadsandsalamanders.There'slittledoubtthatonereasonwhythenumberofamphibiansisdecliningistheirhabitatshavebeendestroyedwhenthedevelopersfillinpondsandmarshestobuildhouses.Amphibianscan'tjustmovesomewhere.Theyneedwatertolaytheireggsin.Anotherproblemisthegrowingfishindustry.Anotherrangeofpopularpoolfishsuchascarphavebeenintroducedtomanylakesandpondsallovertheworld.Raisingandsellingthesefishcanbeprofitable,butthefisheattheeggsandoffspringofamphibiansthatwerealreadylivinginthelakesandponds.Otherfactorscouldbecontributingtothedeclineincludeacidrainandthespreadofpesticideresidues.Manypesticidesthatfarmersaddedtotheircropsareeventuallywashedawaybytherainandendupinpondsandotherbodiesofwaterwhereamphibianslive.Amphibiansareespeciallyvulnerabletopesticidesdissolvedinthewaterbecauseoftheirmoistskins.Watercanpassthroughamphibiansallowingtoxinsdissolvedinthewatertoentertheamphibians'body.
Whatdoesthespeakermainlydiscuss?
A.Thedistributionofdifferentspeciesofamphibians.
B.Possiblereasonsforreductioninthenumberofamphibians.
C.Theeffectsofenvironmentalchangeonthefishindustry.
D.Guidelinesfortheresponsibleuseofpesticides.
8.Whatadvantagesdoesworkhave?
9.PartA
Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.
听力原文:Goodmorning!
Um...AsManagingDirectorofourcompanyI'vebeenaskedtosayafewwordstoyoutodayaboutthewaythecompanyisorganized.SowhatI'vedoneistomakeasortoftable...youknow...toshowhowitisallarranged.It'sinyourbooks.Canyoufindit?
OK.Now,notallcompaniesareorganizedinthesameway,ofcourse.Theyallhavemoreorlessthesamebitsandpieces,buttheyputthemtogetherindifferentways.Infact,someManagingDirectorsarealwayschangingtheorganization,whichcanbeverydisturbingforeverybodyelseandsometimescausesawfulhold-ups.Sometimesit'snecessary,ofcourse,likewhenyoustartmakingsomethingdifferentorjoinupwithanothercompanyorsomething.Anyway,Ithinktheorganizationofmycompanyisfairlytypical,solet'stakealookathowwehaveorganizedit.
Atthetopofthescheme,aboveme,istheBoardofDirectors.Theirjobistoadministratethecompany,makegeneralpolicies,andsoon.Therearetwokindsofdirectors,actually.Onekindiswhatwecallnon-executivedirectors,whichmeansthattheyarenotfull-timeemployees.Theyarethesortofpeoplewhohavesomestandinginvariouspartsofthebusinessworldandareinapositiontohelpthecompanytosucceed.TheyonlyappearwhentherearemeetingsoftheBoard,andsomeofthemareontheboardsofothercompaniesatthesametime.Butthesecondlotofdirectors—theexecutivedirectors—arefull-timeemployeesofthecompany.Mostofthemaremanagersofourvariousdepartments,andyou'llbemeetingthemlater.
Theabsoluteheadofthecompany,ofcourse,istheChairmanoftheBoard.HeisappointedbytheBoard,andhisjobistotakethechairatmeetingsoftheshareholdersandtheBoardofDirectors,andtorepresentthecompany'sinterestsatoutsidefunctions.Hedoesnottakemuchpartintherunningofthebusiness.Heleavesmetogetonwiththejob.Mindyou,notallchairmenarelikethat.Ourlastonewasarealpain,alwayswantedeverythingdonehisownwayandhekeptoninterfering...butanyway,that'swhatthetopslotintheschemeisfor.
Thenthere'sme,theManagingDirector,orMDforshort—aslongasyoudon'tthinkI'madoctorofmedicine,haha...Um...Now,myjobistocoordinatethepoliciesdecidedbythedirectorsandseethattheyarecarriedout.Idothisthroughthevariousmanagersofdepartments—departmentalmanagers.AtthemomentI'vegotsix,andthereareslotsforthemalongthelineunderneathmeinyourscheme.Idon'tthinktheyareinanyparticularorder,sowe'llstartfromtheleftandwalkacross.Actually,they'reallgoingtocomeandtellyouabouttheirjobs.SoI'lljustsayafewwords.And...Right.Thefirstoneis...
Thespeechismainlyabouttheorganizationofthecompany.
A.TrueB.Fasle
10.WherecouldtheboatsfindthelettersatCapeHorn?
11.Astrokevictimcanputglovesonbothhishands.
A.TrueB.Fasle
12.PartA
Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.
听力原文:DoItYourselfMagazineorganizesacompetitioneverysummertoelectthe"Handymanoftheyear".ThewinnerofthisyearisMr.RoyMiller,aSheffieldpostman.Ajournalistandaphotographerhavecometohishouse.ThejournalistisinterviewingMr.Millerforanarticleinthemagazine.
W:Well,I'mveryimpressedbyalltheworkyou'vedoneonyourhouse,Mr.Miller.Howlonghaveyoubeenworkingonit?
M:IfirstbecameinterestedinDo-it-Yourselfseveralyearsago.Yousee,mysonPaulisdisabled.He'sinawheel-chairandIjusthadtomakealterationstothehouse.Icouldn'taffordtopayworkmentodoit.Ihadtolearntodoitmyself.
W:Hadyouhadanyexperienceinthiskindofwork?Didyouhaveanypracticalskills?
M:No.Igotafewbooksfromthelibrarybuttheydidn'thelpverymuch.SoIdecidedtogotoeveningclassessothatIcouldlearnbasiccarpentryandelectricalwiring.
W:Whatsortofchangesdidyoumaketothehouse?
M:Firstofall,practicalthingstohelpPaul.Youneverreallyrealizetheproblemshandicappedpeoplehaveuntilitattacksyourownfamily.Mostgovernmentbuildings,forexample,havestepsuptothedoor.Theydon'tplanbuildingssothatdisabledpeoplecangetinandout.Weusedtoliveinaflat,andofcourse,itwastotallyunsuitable.Justimaginetheproblemsadisabledpersonwouldhaveinyourhouse.WeneededalargernoisewithwidecorridorssothatPaulcouldgetfromoneroomtoanother.Wedidn'thavemuchmoneyandwehadtobuythisone.It'soverninetyyearsoldanditwasinaverybadstateofrepair.
W:Wheredidyoubegin?
M:Theelectrical.IcompletelyrewiredthehousesothatPaulcouldreachalltheswitches.Ihadtolowerthelightswitchesandraisethepower-points.IwentontodothewholehousesothatPaulcouldreachthingsandgowhereheneeded.
W:Whatelsedidyoudo?
M:BythetimeI'dalteredeverythingforPaul,do-it-yourselfhadbecomeahobby.Ireallyenjoyeddoingthingswithmyhands.Look,Ieveninstalledsmoke-alarms.
W:Whatwasthepurposeofthat?
M:Iwasveryworriedaboutfire.Yousee,Paulcan'tmoveveryfast.Ifittedthemsothatwewouldhaveplentyofwarningiftherewereafire.Iputinacompleteburglar-alarmsystem.Ittookweeks.Thefrontdooropensautomatically,andI'mgoingtoputadeviceonPaul'swheelchairsothathe'llbeabletoopenandcloseitwhenhewants.
W:Whatareyouworkingonnow?
M:I'vejustfinishedthekitchen.I'vedesigneditsothathecanreacheverything.NowI'mbuildinganextensionsothatPaulwillhavealargeroomonthegroundfloorwherehecanwork.
W:There'sa$10,000prize.Howareyougoingtospendit?
M:IamgoingtostartmyownbusinesssothatIcanconvertordinaryhousesfordisabledpeople.IthinkI'vebecomeanexpertondiesubject.
ThoughPaulisdisabled,hemanagedtomovearoundinthehouse.
A.TrueB.Fasle
13.PartA
Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.
听力原文:Hello,everyone.TodayIwillintroduceyouthelearningchainsinBritain.Herethechainsrefertoschoolslinkedtogetheraspartofagroup.Theycanofferstudentsmanypracticaladvantages.
Whenpeopleareaskedtonamealanguageschool,moreoftenthannot.theythinkofoneofthelargeinternationalchainsofschools.Somearevastlanguageteachingorganizationswithschoolsinmanydifferentcountriesandmayteachjustonelanguage.
Oneofthemainstrengthsofthesechainsisthefactthattheirnameisfamiliartopeopleallovertheworld.Thiscanbeabigadvantageintheconfusingworldoflanguagelearning.Moststudentsarebewilderedbythelargechoiceofschoolsandcoursesonoffer.bothathomeandabroad.andsomanyprefertochooseaschoolwhichhasafamiliarnameandanestablishedreputation.Chainschoolsknowthis,andpartoftheirsuccessisduetoeffectivemarketingandadvertising,whichhelpstokeeptheirnamewell-known.
Butchainschoolsshouldnotbedismissedbyseriousstudentsjustbecausetheyuseclevermarketingtechniques.Theyhaveotherimportantstrengthenswhichcanprovideadvantagestostudents.Aschoolisonlyasgoodasitsteachersandfacilities,andmanychainsofferveryhighstandardsinboth.Morechainsrequirethattheirteachershaveinternationallyrecognizedqualificationsandamaximumamountofteachingexperience.Itisimportantforchainstomaintainthesestandardsatallschools.becausethereputationofthewholechaincanbeaffectedifoneschoolperformsbadly.
Studentsalsobenefitfromthestandardizedstructureofchains.Mostchainsusethesametextbooksinalltheirschools.andoftentheyproducetheirowncourseworkmaterials.Theyalsoorganizetheircoursesinthesamewaywhichmeansthatstartingdatesandcourselengthsareusuallythesameatallschools.
Forstudents,oneofthemainadvantagesofthisstandardizedstructureissimplicity.IfyoucannotdecidewhethertostudyintheU.S.orBritain.forexample,mostchainsallowstudentstostarttheirlanguagecourseatoneschoolandcontinueatanother,sotheycanexperiencedifferentregionsordifferentcountries,aspartofthesamestudytrip.
Chainschoolstendtobelargerthansinglecenterschools,whichcanalsohaveadvantagesforstudents.Withlargernumbersofstudents.schooladministratorscanachieveabettermixtureofnationalitiesinclassrooms.Thismeansthatstudentscanavoidbeingwithotherstudentswhospeaktheirlanguage.Thisgivesthemthechancetomeetstudentsfromothercountries,andtopracticetheirEnglishwiththem.
Somechainsofferstudentsaverysimplebookingandenrolmentprocedurewhichisalsouseful.Applicationformsandenrolmentproceduresarethesameforallschools,sostudentsneedonlysupplytheirdetailsonce.Studentsmayfindthattheycanbooktheircourseabroadthrougharepresentativeofachainschoolintheirowntownorcity.Otherchainsofferacentralizedbookingfacility,sostudentsonlyhavetocontactonecentertomakeabookinganywhereintheworld.
Chainschoolsoftenoperateindifferentlocations,whereasasingleschoolislikelytobebasedpermanentlyinonebuilding.Manychainschoolsoperatetemporaryschools,particularlyduringthesummerholidays.InBritain,theyoftenusesecondaryschoolpremiseswhichareemptyduringtheschoolholidays.
StudyingEnglishinanEnglish-speakingcountryisthemosteffectivewaytolearnthelanguage,butformanystudentsthisisonlyonestageoftheirlearningcareer.MoststudentsstartlearningEnglishintheirowncountryandtheywillprobablywanttocontinuelearningoncetheyreturnfrom
A.RightB.Wrong
14.WhyareAmericanstudentsusuallyunderpressureofwork?
A.Becausetheiracademicperformancewillaffecttheirfuturecareerinthefuture.
B.Becausetheyareheavilyinvolvedinstudentaffairs.
C.Becausetheyhavetoobservetheuniversitydiscipline.
D.Becausetheywanttorunforpositionsofauthority.
15.Accordingtoanotherexplanation,wheredidthisexpressionprobablycomefrom?
A.Australia.B.Japan.C.Netherland.D.England.
二、2.UseofEnglish(10题)16.(40)
17.
【C11】
18.
【C7】
19.
【C12】
20.(43)
21.
【C14】
22.(50)
23.
【C4】
24.(34)
25.
【C20】
三、3.ReadingComprehension(15题)26.(67)
27.
Wecanlearnfromthetextthatartcriticshaveahistoryof______.
A.suppressingpainters'artinitiatives
B.favoringBotticelli'sbestpaintings
C.rejectingtraditionalartcharacteristics
D.undervaluingBotticelli'sachievements
28.(69)
29.(79)
30.Themanbehindthisnotion,JackMaple,isadandywhoaffectsdarkglasses,homburgs(翘边帽)andtwo-toeshoes;yethehasbecomesomethingofalegendinAmerica'spolicedepartments.Forsomeyears,startinginNewYorkandmovingontohigh-crimespotssuchasNewOrleansandPhiladelphia,heandhisbusinesspartner,JohnLiederhavemarketedatwo-tiersystemforcuttingcrime.
First,policedepartmentshavetosortthemselvesout:rootoutcorruption,streamlinetheirbureaucracy,andmakemorecontactwiththepublic.Second,theyhavetoadoptacomputersystemcalledComstatwhichhelpsthemtoanalyzestatisticsofallmajorcrimes.Theseareconstantlykeyedintothecomputer,whichthendisplayswhereandwhentheyhaveoccurredonacolor-codedmap,enablingthepolicetomonitorcrimetrendsastheyhappenandtospothigh-crimeareas.InNewYork,Comstat'sstatisticalmapsareanalyzedeachweekatameetingofthecity'spolicechiefandprecinctcaptains.
MessrsMapleandLinder("specialistsincrime-reductionservices")havenodoubtthattheirsystemisamaincontributortothedropincrime.WhentheyintroduceditinNewOrleansinJanuary1997,violentcrimedroppedby22%inayear;whentheymerelystartedworkinginformallywiththepolicedepartmentinNewark,NewJersey,violentcrimefellby13%.Policedepartmentsarenowlininguptopayasmuchas$50,000amonthforthesetwomentoputthemstraight.
Probablyallthesenewpoliciesandbitsoftechnicalwizardry,addedtogether,havemadeabigdifferencetocrime.Butthereremainanomaliesthatcannotbeexplained,suchasthefactthatcrimeinWashingtonD.C.,hasfallenasfastasanywhere,althoughthepolicedepartmenthasbeencorruptandhopelessand,inlargestretchesofthecity,neitherpolicenorresidentsseemdisposedtofightthecriminalsintheirmidst.
Themoreimportantreasonforthefallincrimerates,manysay,isamuchlesssophisticatedone.Itisafactthatcrimerateshavedroppedastheimprisonmentratesoared.In1997thenationalincarcerationrate,at645per100000peoplewasmorethandoubletheratein1985,andthenumberofinmatesincityandcountyjailsroseby9.4%,almostdoubleitsannualaverageincreasesince1990.Surelysomecriminologistsargue,onesetoffiguresisthecauseoftheother.Itisprecisebecausemorepeoplearebeingsenttoprison,theyclaimthatcrimeratesarefalling.A1993studybytheNationalAcademyofSciencesactuallyconcludedthatthetriplingoftheprisonpopulationbetween1975and1989hadloweredviolentcrimeby10-15%.
Yetcauseandeffectmaynotbesoobviouslylinked.Tobeginwith,thesaleandpossessionofdrugsarenotcountedbytheFBIinitscrimeindex,whichislimitedtoviolentcrimesandcrimesagainstproperty.Yetdrugoffencesaccountformorethanathirdoftherecentincreaseinthenumberofthosejailed;since1980,theincarcerationratefordrugarrestshasincreasedby1000%.Andalthoughaboutthree-quartersofthosegoingtoprisonfordrugoffenceshavecommittedothercrimesaswell,thereisnotyetacrystal-clearconnectionbetweenfillingthejailswithdrug-pushersandadeclineintherateofviolentcrime.Again,thoughnationalfiguresaresuggestive,localonesdiverge:theplaceswherecrimehasdroppedmostsharply(suchasNewYorkCity)arenotalwaystheplaceswhereincarcerationhasrisenfastest.
JackMaplestartedhiscareerin______.
A.PhiladelphiaB.OregonC.NewOrleansD.NewYork
31.
Whichofthefollowingstatementsistrueaboutinsuranceproducts?
A.Peoplehavenochoicewhenbuyinginsuranceproducts.
B.Thereweresomanychoicesininsuranceproductsinthepastthatpeoplefounditdifficulttomakeadecision.
C.Therearenobetterandcheaperinsuranceproducts.
D.Itisbetterforpeopletohavesomanyinsuranceproductstochoose.
32.(75)
33.
Accordingtothepassage,thesolutionofferedbythetechnicianwas______.
A.effectiveB.economicalC.unpracticalD.unacceptable
34.(80)
35.TheissueofonlineprivacyintheInternetagefoundnewurgencyfollowingtheSept.11terroristattacks,sparkingdebateoverstrikingthecorrectbalancebetweenprotectingcivillibertiesandattemptingtopreventanothertragicterroristact.Whilepreventingterrorismcertainlyisofparamountimportance,privacyrightsshouldnotbedeemedirrelevant.
Inresponsetotheattacks,Congressquicklypassedlegislationthatincludedprovisionsexpandingrightsofinvestigatorstointerceptwire,oralandelectroniccommunicationsofallegedhackersandterrorists.CivillibertiesgroupsexpressedconcernsovertheprovisionsandurgedcautioninensuringthateffortstoprotectournationdonotresultinbroadgovernmentauthoritytoerodeprivacyrightsofU.S.citizens.Nevertheless,causingfurtherconcerntocivillibertiesgroups,theDepartmentofJusticeproposedexceptionstotheattorney-clientprivilege.OnOct.30,AttorneyGeneralJohnAshcroftapprovedaninterimagencyrulethatwouldpermitfederalprisonauthoritiestomonitorwireandelectroniccommunicationsbetweenlawyersandtheirclientsinfederalcustody,includingthosewhohavebeendetainedbutnotchargedwithanycrime,wheneversurveillanceisdeemednecessarytopreventviolenceorterrorism.
Inlightofthisbroadeningefforttoreachintocommunicationsthatwerepreviouslybelievedtobe"off-limits",theissueofonlineprivacyisnowanevenmorepressingconcern.Congresshastakensomelegislativestepstowardensuringonlineprivacy,includingtheChildren'sOnlinePrivacyProtectionAct,andprovidedprivacyprotectionsforcertainsectorsthroughlegislationsuchastheFinancialServicesModernizationAct.Thelegislationpassedtodatedoesnot,however,provideastatutoryschemeforprotectinggeneralonlineconsumerprivacy.Lackingdefinitivefederallaw,somestatespassedtheirownmeasures.Butmuchofthislegislationisincompleteornotenforced.Moreover,itbecomesunworkablewhenstatescreatedifferentprivacystandards;theInternetdoesnotknowgeographicboundaries,andcompaniesandindividualscannotbeexpectedtocomplywithdiffering,andattimesconflicting,privacyrules.
Ananalysisearlierthisyearof751U.S.andinternationalWebsitesconductedbyConsumersInternationalfoundthatmostsitescollectpersonalinformationbutfailtotellconsumershowthatdatawillbeused,howsecurityismaintainedandwhatrightsconsumershaveovertheirowninformation.
Ataminimum,CongressshouldpasslegislationrequiringWebsitestodisplayprivacypoliciesprominently,inform.consumersofthemethodsemployedtocollectclientdata,allowcustomerstooptoutofsuchdatacollection,andprovidecustomeraccesstotheirowndatathathasalreadybeencollected.AlthoughvariousInternetprivacybillswereintroducedinthe107thCongress,thefocusshiftedtoexpandinggovernmentsurveillanceinthewakeoftheterroristattacks.Plainly,governmenteffortstopreventterrorismareappropriate.Exactlyhowtheseexigentcircumstanceschangethenatureoftheonlineprivacydebateisstilltobeseen.
Concerningtheprotectionofprivacyandincreasedsurveillanceofcommunication,theauthorseemstoinsiston______.
A.theprioriyoftheformeraction
B.theexecutionofthelatterattheexpenseoftheformer
C.tighteningbothpoliciesatthesametime
D.abalancebetweenthetwoactions
36.(74)
37.PartB
Directions:Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66-70,choosethemostsuitableparagraphfromthelistA-Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.
AccordingtotheAmericanAcademyofDermatology,anestimated10to50millionpeopleinthiscountryhaveanallergicreactiontopoisonivyeachyear.Poisonivyisoftenverydifficulttospot.Itcloselyresemblesseveralothercommongardenplants,andcanalsoblendinwithotherplantsandweeds.Butifyoucomeintocontactwithit,you'llsoonknowbytheitchy,blisteryrashthatformsonyourskin.Poisonivyisared,itchyrashcausedbytheplantthatbearsitsname.Manypeoplegetitwhentheyarehikingorworkingintheirgardenandaccidentallycomeintodirectcontactwiththeplant'sleaves,roots,orstems.Thepoisonivyrashoftenlookslikeredlines,andsometimesitformsblisters.
66.______
About85percentofpeopleareallergictotheurushiolinpoisonivy,accordingtotheAmericanAcademyofDermatology.Onlyatinyamountofthischemical—1billionthofagram—isenoughtocausearashinmanypeople.Somepeoplemayboastthatthey'vebeenexposedtopoisonivymanytimesandhavenevergottentherash,butthatdoesn'tnecessarilymeanthey'renotallergic.Sometimestheallergydoesn'temergeuntilyou'vebeenex-posedseveraltimes,andsomepeopledeveloparashaftertheirveryfirstexposure.Itmaytakeuptotendaysfortherashtoemergethefirsttime.
67.______
Herearesomeotherwaystoidentifythepoisonivyplant.Itgenerallygrowsinaclusteroflow,weed-likeplantsorawoodyvinewhichcanclimbtreesorfences.Itismostoftenfoundinmoistareas,suchasriverbanks,woods,andpastures.Theedgesoftheleavesaregenerallysmoothorhavetiny"teeth".Theircolorchangesbasedontheseason—reddishinthespring;greeninthesummer;andyellow,orange,orredinthefall.Itsberriesaretypicallywhite.
68.______
Thebody'simmunesystemisnormallyinthebusinessofprotectingusfrombacteria,viruses,andtheirforeigninvadersthatcanmakeussick.Butwhenurushiolfromthepoisonivyplanttouchestheskin,itinstigatesanimmuneresponse,calleddermatitis,towhatwouldotherwisebeaharmlesssubstance.Hayfeverisanotherexampleofthistypeofresponse;inthecaseofhayfever,theimmunesystemoverreactstopollen,oranotherplant-producedsubstance.
69.______
Theallergicreactiontopoisonivyisknownasdelayedhypersensitivity.Unlikeimmediatehypersensitivity,whichcausesanallergicreactionwithinminutesofexposuretoanantigen,delayedhypersensitivityreactionsdon'temergeforseveralhoursorevendaysaftertheexposure.
70.______
Intheplaceswhereyourskinhascomeintocontactwithpoisonivyleavesorurushiol,withinonetotwodaysyou'lldeveloparash,whichwillusuallyitch,redden,bum,swell,andform.blisters.Therashshouldgoawaywithinaweek,butitcanlastlonger.Theseverityofthereactionoftenhastodowithhowmuchurushiolyou'vetouched.Therashmayappearsoonerinsomepartsofthebodythaninothers,butitdoesn'tspread—theurushiolsimplyabsorbsintotheskinatdifferentratesindifferentpartsofthebody.Thickerskinsuchastheskinontheonsolesofyourfeet,ishardertopenetratethanthinnerskinonyourarmsandlegs.
A.Becauseurushiolisfoundinallpartsofthepoisonivyplant—theleaves,stems,androots—it'sbesttoa-voidtheplantentirelytopreventarash.Thetroubleis,poisonivygrowsalmosteverywhereintheUnitedStates(withtheexceptionoftheSouthwest,Alaska,andHawaii),sogeographywon'thelpyou.Thegeneralrotetoidentifypoisonivy,"lea
38.PartA
Directions:ReadthefollowingtextsandanswerthequestionswhichaccompanythembychoosingA,B,CorD.MarkyouranswersonANSWERSHEET1.
Opinionpollsarenowbeginningtoshowthat,whoeveristoblameandwhateverhappensfromnowon,highunemploymentisprobablyheretostay.Thismeansweshallhavetomakeways
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