北京市10区2025届高三第二次联考英语试卷含解析

北京市10区2025届高三第二次联考英语试卷注意事项：1．答卷前，考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。用2B铅笔将试卷类型（B）填涂在答题卡相应位置上。将条形码粘贴在答题卡右上角"条形码粘贴处"。2．作答选择题时，选出每小题答案后，用2B铅笔把答题卡上对应题目选项的答案信息点涂黑；如需改动，用橡皮擦干净后，再选涂其他答案。答案不能答在试题卷上。3．非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新答案；不准使用铅笔和涂改液。不按以上要求作答无效。4．考生必须保证答题卡的整洁。考试结束后，请将本试卷和答题卡一并交回。第一部分（共20小题，每小题1.5分，满分30分）1．Paulawaiteduntilalltheluggagewascleared,__________hersneverappeared.A．or B．so C．as D．but2．volleyballishermainfocus,sheisalsogreatatbasketball.A．Since B．OnceC．Unless D．While3．IntheUS,therearecurrentlyover5,000communityschools_____,inadditiontoservingaseducationalinstitutions,functionascommunitycentersforthesurroundingneighborhood.A．which B．whereC．whose D．as4．TheEnglishinthisstoryhasbeensimplifiedtomakeiteasier_______.A．tobeunderstood B．understood C．understanding D．tounderstand5．--Whoisdancingtomusicinthenextroom?--________thechildren.A．Itis B．Theyare C．Thatis D．Thereare6．________abike,shecycledhome.A．Bought B．Tobuy C．Beingbought D．Havingbought7．Onthesurfaceofthewater________,whichspoiledthebeautifulsceneryofthepark.A．somedeadleavesdidfloat B．somedeadleavesfloatedC．floatedsomedeadleaves D．didsomedeadleavesfloat8．_______itissohot,Iguesswecan’tdoanythinguntilafterdark.A．Incase B．Nowthat C．Evenif D．Asthough9．They’veseenmanyfamousscholarsintheconference.HowIwishI______it!A．haveattended B．willattendC．wouldattend D．hadattended10．Experienceisahardteacherbecauseshe________thetestfirst,thelessonafterwards.A．givesB．hasgivenC．wasgivingD．wouldgive11．TheLushanMountain,occupyinganareaof302squarekilometers,possessesrichculturalandgeological__________.A．attractions B．amusements C．entertainments D．presentations12．Itisglobalwarming,ratherthanotherfactors,___theextremeweather.A．thathaveledto B．whichhascausedC．whicharecausing D．thathasledto13．It's________mewhyAlicegaveupherjobandgotmarried.A．under B．above C．over D．beyond14．Hewaselected______presidentofthecompany,and_____newscame,infact,as______surprise.A．a;the;X B．X;the;a C．a;X;the D．the;the;a15．AlanseemsalottallerthanwhenIlastsawhim.He.He’sgrownafootsinceyousawhiminShanghai.A．is B．willbeC．hasbeen D．was16．Jimtoldusallthat_______hesaidsoatthemeetingwasright.A．all B．whatC．allthat D．that17．NASAhasmadea________thatourearthhasnothreatassociatedwiththefilm2012whichisbasedonpuremyths.A．clarification B．classification C．identification D．presentation18．—Jackhasbeenoutofconsciousnesssincetheaccident.Willhecometohimself，doctor?—It’sgoingtobetoughbutweanticipatethathewill.A．putthroughB．pullthroughC．putoverD．pullover19．Smoking______inthekitcheninmyhouse.A．doesn’tallowB．didn’tallowC．isn’tallowedD．won’tallow20．Ifyousleeplessthansevenhours,youarethreetimesmoretocatchacold．A．possible B．certainly C．probable D．likely第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。21．（6分）Inthefuturethosewhoaretakingcareofoldpeoplemaygethelpfromthehouseitself.Overthelastfewyears,newtechnology,suchastheInternet,Wi-FiandflatTVscreens,haschangedourhomesandthewaythatwelive.Now,anothertechnologyrevolutionishappening.AnewprojectattheUniversityofHertfordshirewantstocreateahomethatmonitorspeoplelivinginitwhoareelderly.Theresearchershavedevelopedawristbanddevice（装置）whichhelpsustowatchtheelderlypersonwhoiswearingit.Thedevicecollectsinformationtoseeifthepersonhasfallenorhaswanderedawayfromwhereheorsheshouldbe.Theassisted-livingprojectispartoftheuniversity’swiderInterhomeproject,whichisthedevelopmentofasmarthouse.Thehouseremembersthehabitsofthepersonwholivesthereanditusesverylowamountsofenergy.TheInterhometeamhopethatofferingthisservicewillhelptakecareoftheelderly.Theysay,“It’sveryimportantthatthesetechnologiesaretheretohelpandsupportandnotreplaceanyoftheexistingservices.”TheInterhomeisnotjustaresearchmethod.It’salsoawayforstudentsfromdifferentscientificbackgroundstolearnanddeveloptechnology.Theuniversityusesthelatesttechnologytohelpstudentsgetexperiencebydevelopingnewhardwareandsoftwarethemselves.Theteamincludesdesign,engineeringandcomputersciencestudentsworkingtogether.“Weareworkingonasmart-homeprojectinWatfordwithsomecompaniesatthemoment,”saystheprojectleader.“Wearelookingathowasmarthomecanprovideevenmoreservices.”Thiscouldhelpmillionsofoldpeoplearoundtheworldhaveabetterandsaferlifeinthefuture.1、Thewristbanddevicebenefitsitsusersby.A．changingthelivinghabitsoftheelderlyB．monitoringpeoplewholiveinasmarthomeC．offeringinformationtothepersonwearingitD．watchingovertheelderlywhomayfallorgetlost2、WhomdoestheUniversityofHertfordshirehaveinitsresearchteam?A．Studentswhowanttofindajobeagerly.B．Studentswhoprefertoworkontheirown.C．Studentsfromdifferentscientificbackgrounds.D．Studentswithalotofrichworkingexperience.3、Whatistheprojectleader’sattitudetowardsthefutureofthesmarthomeproject?A．Uncertain.B．Uninterested.C．Optimistic.D．Disappointed.4、Whatmightbethemainideaofthepassage?A．Awristbanddevicehaschangedthewaythatwelive.B．Asmarthomehelpsstudentsdevelophardwareandsoftware.C．AnInterhomeprojecthasbeenputintousetohelptheelderly.D．AnInterhomeprojectwillhelptheoldliveabetterandsaferlife.22．（8分）NeilJordan,aconservationbiologist,hascomeupwithanovelmethodforprotectingcattlefromAfricanlions:painteyesontheirbehinds.Thelionswillthinktheirintendedprey（猎物）hasseenthemandwillgiveup,sincethey'velosttheelementofsurprise.Thispsychologicaltrickeryhasbeencalled"iCow",whichisactuallynotasstrangeasitsounds.Theeye-likepatternsonbutterflywingsareknowntopreventpreyingbirdsandwoodcuttersinIndianforestswearmasksonthebacksoftheirheadswhenworkingtodiscouragehungrytigers.TheinspirationfortheiCowstrategycamewhileJordanwasbasedinavillageinBotswana,whentwolionesseswerekilledbylocalfarmerstorevengetheircattle'sdeath.TheAfricanlionisavulnerablespecies,withnumbersdroppingfromover100,000inthe1990stoabout30,000today.Muchofthatdeclineisduetothesekindsofrevengefulkillingsbecausefarmershavenoeffectivestrategiesforprotectingtheirherds."Lionsarehuntersthatliketoattackbysurprise.Theymoveslowly,quietly,andcarefullytotheirprey,getclose,andjumponthemunseen,"hesaid.WhenJordanwaswatchingalionfollowanantelopeoneday,henoticedtheliongaveupthehuntoncetheantelopespottedit.Sohejoinedoneofthelocalfarmersona10-weektrialstudy,paintingeyesonone-thirdofaherdof62cattle.Whenthecattlereturnedeachnight,theytookaheadcounttoseehowmanyhadsurvived.Onlythreecowswerekilledbylionsduringthisperiod-allwithoutthepaintedeyesontheirbehinds.Andallthepaintedcowssurvived.However,Jordanwarnedthatsofarthisisjustapromisingidea.HeisnowbackinBotswanaforamoreambitiousstudy,equippedwithGPSdevicestobettermonitorthemovementofpredators（捕食者）andprey.1、TheiCowstrategyisdesignedto.A．killthelionsB．scareoffPredatorsC．identifycattleD．havefun2、Whenhunting,lionsliketo.A．giveuphalfwayB．hesitatetotakeactionC．chasetheirpreysteadilyD．launchsurprisingattacks3、Whatdoestheunderlinedword"vulnerable"meaninthethirdparagraph?A．badlybehavedB．likelytoattackC．easilycheatedD．easilydamaged4、Whatcanbeinferredfromthepassage?A．NeilJordangottheinspirationfromthepatternsonbutterflywings.B．Inthe10-weektrialstudy,morecattlewerekilled.C．TheiCowstrategyislikelytobringgreatbenefit.D．Thefarmerswillcontinuetotaketheirrevengeonthelions.23．（8分）AtonetimenoonecouldtravelonanEnglishroadfasterthanfourmilesanhour.Thatwasthelawuntil1896.Amanhadtowalkinfrontofacarwhichcouldnotgofasterthantheman.Atnightthemanhadtocarryaredlamp.OnceCharlesRollsbroughtacarfromFrancetoEngland,buthewantedtodrivefasterthanfourmilesanhour.Inordertohavenotroublewiththepolice,hehadatalkwithsomeofthepoliceofficers,whoorderedtheirpolicementolooktheotherwaywhenthecarcamealongtheroad.Thiswasagoodplaninthecountry,butnotsoeasytofollowinthebusystreetsofLondon.OnenightRollsandsomefriendsstartedfromLondonontheirjourneytoCambridge.Oneofthemenwalkedinfrontwiththeredlamp,buthewalkedasfastashecould.Thepolicebecameveryinterestedinwallsandshop-frontswhentheyheardthecarandnotoneofthemsawit.Theyreachedahill,butwhatawasteoftimeitwastodrivedownthehillatfourmilesanhour!Rollswasgettingreadytojumpintothecar,butthenhenoticedapolicemanwhowasnotlookingtheotherway.Theslowcarreachedhim.“Goodevening,”saidthepoliceman,lookingatthecar.“Goodevening,”saidRolls,holdingthelamp.“Oneofthesehorselessthings,”saidthepoliceman,lookingatitwithinterest.“Yes,”saidRolls,andwaited.“I’veoftenwantedarideinone,butofcoursepolicemencan’tbuythingslikethat.”HeturnedandlookedhopefullyinRolls’sface.“Jumpin,”saidRolls.“Thanks,”saidthepoliceman,anddidso.“Now,”hesaid,sittingdown,“Youcanletitgojustasyoulikedownthishill.Thereisn’tanotherpolicemanonthisroadforamileandahalf.”1、Thepolicemenweretold“tolooktheotherway”sothat_______.A．theycouldwatchthecarcomingfromtheotherdirectionB．Rolls’scarcouldgofasterthanfourmilesanhourC．theycouldmakesurenoonewasinthewayD．thecarwouldnothitthemontheroad2、Inwhatwaydidthepolicemencarryouttheorderfromtheirofficers?A．TheygreetedRollswhenthecarcamealong.B．Theywalkedinfrontofthecarwitharedlamp.C．Theypretendedtobeattractedbysomethingelse.D．Theystoodondutyevery1.5milesalongtheroad.3、Thepolicemanwhosaid“Goodevening”toRollswantedto_______.A．teachRollsalesson B．takeafreeridehomeC．haveatalkwithRolls D．haveacarrideexperience4、Afterthepolicemanjumpedintothecar,Rolls_______.A．darednotdrivethecarfasterthanhewasallowedtoB．coulddriveasfastashewishedwithinacertaindistanceC．coulddriveonanyroadhelikedfortherestofthejourneyD．drovehiscarasfastashecoulddownthehilltoCambridge24．（8分）VisitorstothegroundsofNewCollegeatEngland’sOxfordUniversitypassunderanirongatewiththeadvice:Mannersmaketheman.Evenafteranappropriateupdateto:Mannersmaketheperson,it’sthought-provoking(引人深思的)—especiallytotoday’sAmericans.Whenwethinkaboutwhatmakestheperson—it’smorelikelythedegree,thejob,thesalary.Sincewhendowecountmannersasameasureofsuccess?Wedoknowthatthesewouldmakelifenicer,ifmoretolerable.However,weforgetoroverlookourmanners.So,itseems,doeseveryoneelse—including,unluckily,ourchildren.Asauniversitypresident,oneofmygreatjoysistovisitourcampusesandseeourstudents,thoughwe’reseparatedbydifferentgenerations,interests,and,ofcoursedressing,eachstudenttellsmesomethingwithinthefirstfewminutesthatwemeet:whetherheorshehasbeentaughtmanners.Isensethisindifferentways:throughherwordsorhergestures,inthewayshelistensorhowhereferstofriendsandfaculty,howshegreetsandsaysgoodbye,howherespondswhenanelderlypersonenterstheroom.Intheabsenceofmanners,however,Imakesomeallowances.Forinstance,themanyethnic(种族的)groupsthatstudentsrepresentoftenhavedifferentexplanationsofwhatmakesupgoodmanners.Inothercases,somestudentsmayrejectwhatthey’velearnedtobreakfromtheirparentsandbeacceptedbyotherstudents.Whetherstudentsarebeingdifferentoropenlyopposing,arecentexperienceIhadwiththemtellsmethatthere’ssomehopeforrevivingandgoodmanners.Goodmannersdon’tjustguaranteeacceptance.Goodmannersopendoorstodeeperconnectionsandmoremeaningfulrolesinoursociety.Goodmannersaregentlesignalsthatshowwecareaboutoneanotherandallowustorelatetoanotherpersoninathoughtfulwaybutatarespectabledistance.1、Whichofthefollowingisseldomamarkofsuccesstopeopletoday?A．Handsomeincome.B．Anacademicdegree.C．HighranksintheofficeD．Politebehavior.2、Whatdoestheunderlinedpart“makesomeallowances”inParagraph4probablymean?A．treattheabsenceofmannersdifferentlyB．rejecttheabsenceofmannersC．opposebadmannerssomehowD．partlypermitbeingintheabsenceofmanners3、Whichofthefollowingisthebenefitbygoodmanners?A．GoodmannersmakespeoplethoughtfulB．GoodmannershelpdeeperconnectionswithothersC．GoodmannersguaranteeacceptanceofourselvesD．Goodmannersinspirepeopletocareaboutoneanother25．（10分）TheHarvardLawSchoolLibrary(HLSL)isaprivateresearchcenterthatexistsmainlytosupporttheeducationalandresearchneedsoftheHarvardLawSchoolstaffandstudentsandtheneedsofthewholeHarvardUniversity.Italsoattemptstoservetheneedsofscholarsandresearchersrequiringaccesstoitsuniquecollections.Pleasenote:●BorrowingislimitedtopresentHarvardIDholders●Duringexamperiods,accessisrestrictedtopresentHarvardLawSchoolcollectionusers.HarvardUniversityIDholderscanalwaysentertofindanybooktocheckout.●Visualmaterials,alongwithrarebooks,arehousedintheLibrary’sSpecialCollections.Forinformationconcerningaccesstothesematerials,pleasevisittheHistorical&SpecialCollectionspage.●Thelibrarystaffisnotavailableforlegaladvice.●Ifyouhaveanyquestionsnotansweredonthissite,orontheaccessapplication,calltheLangdellCirculationDeskstaff,617-495-3455,oremailAccessPrivileges.AccesstoElectronicResourcesTheLibraryhasmoreelectronicresourcesthanmostothernon-governmentaluniversitiesintheUnitedStates.UseoftheseresourcesislimitedtomembersoftheHarvardLawSchool.AccessiscontrolledbyeitherIPaddressorpassword.SeetheElectronicResourcespageformoreinformation.AccesstoHarvardLibrariesPoliciesonadmittanceandservicesvary.FormoreinformationonalllibrariesatHarvard,visit/libraries.ThehoursofoperationareMonday~Friday,9:00am~4:45pm.EnquiriescanbemadeinpersonattheLibraryOffice,WidenerLibrary,Room130,bytelephoneat617-495-4166,orbyemail.1、ToborrowbooksfromtheHLSL,youmust______.A．avoidexamperiodsB．holdaHarvardIDC．seekthelibrarystaff’sadviceD．refertotheHistorical&SpecialCollections2、WhocanuseElectronicResourcesintheHLSL?A．ScholarsofHarvardLawSchool.B．AnystudentofHarvardUniversity.C．Researchersneedinguniquecollections.D．Studentsinnon-governmentaluniversities.3、HowcanyougetaHarvardID?A．EmailAccessPrivileges.B．Call617-495-3455onweekends.C．GotoRoom130at10amonWednesday.D．Makeenquiresatthelibraryofficeat5pm.第三部分语言知识运用（共两节）第一节（每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项．26．（30分）IwasoftentoldthatGodlovedme.Iwantedtobelievethatsomuch.Fornearlya1Iwasshuttledbetweenadoptivefamiliesandgrouphomes—14ofthem.Somefamilieswerenice.Otherswere2,likeevilsinadarkfairytale.Attheageof12,Iwasfinally3,byGayandPhilCourter,acouplewithtwoadultsons.Gaysaid,“Welivedfora4,andwebelievethatreasonisyou.”I’dbeenliedtobyadultssomanytimesinthepastyears.Iwasn’tsurethey5lovedme.“Therewillbeno6.Allthoseparentswereprettymuchthesame,”Isaidtomyself.I7tocallthemMomandDad.Iwasparticularaboutthehome-cookedmealsGay8prepared.Ihidinmyroomasmuchaspossible.Iwantedtomakethem9sothey’dshowtheirtruecolors.OneFridaynightintheeighthgrade,Ireally10thingstothelimit.Aneighborhoodgirlhadpersuadedmeto11outofthehousewithhertomeetsomeboys.IputAdvil(镇痛药)inmyparents’drinksafterdinner,12itwouldmakethemsleepy.Wow!I’dneverseenthemso13.“Nowtheywouldsurelysendmeback”,Ithought.Insteadtheysaid.“Ashley,wearefamily,wehavenowheretosendyoubackto,wemust14thislikeafamily.”Iranin15tomybedroom,whereIspenttheweekend.SeeinghowmuchI’ddisappointedthemmademe16.Noonehadevercaredformelikethat.Ididn’tdeservethis17.Sundaynight,Gaycameintomyroom.She18downandkissedmycheek.“Loveyou,sweetie,”shesaid.Forthefirsttimeever,Ikissedherback.“Loveyoutoo,”Isaid.Thatword-love-soundedso19,yetfeltsotrue.Iwasdiscoveringthatloveiswhatmakesa(n)20.1、A．fortnight B．week C．month D．decade2、A．cruel B．mad C．angry D．strange3、A．moved B．discovered C．adopted D．persuaded4、A．family B．kindness C．love D．reason5、A．possibly B．finally C．truly D．certainly6、A．point B．choice C．difference D．evidence7、A．started B．refused C．wanted D．agreed8、A．happily B．painstakingly C．willingly D．easily9、A．mad B．relaxed C．content D．shocked10、A．dragged B．proved C．pulled D．pushed11、A．run B．jump C．slide D．break12、A．discovering B．observing C．seeing D．thinking13、A．nice B．angry C．different D．cruel14、A．dealwith B．putdown C．lookthrough D．writedown15、A．joy B．tears C．anger D．laughters16、A．ashamed B．annoyed C．excited D．satisfied17、A．service B．honor C．honesty D．kindness18、A．bent B．took C．put D．broke19、A．different B．popular C．strange D．familiar20、A．group B．family C．adult D．union第二节（每小题1.5分，满分15分）阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。27．（15分）Oneplacethathasleftalasting1．(impress)onmeistheislandofLesvosinGreece,Iwenttherefor2．holidaywithsomeofmyfriends.Wefeltthatwedeservedabitofsunandachance3．(relax)afterhavingstudiedsohard.Strangelyenough,eventhoughIwentthereforawell-earnedrest.I4．(actual)workedharderthanIhadeverdonebefore.Insteadofspendingmydaysonthebeachsunbathingandswimminginthesea,Iendedup5．(help)thelocalsdealwiththeendlessarrivalofrefugees(难民),manyof6．werestrugglingtogettothebeachaftertheirboatshadturnedover.Anyway,thisholidayturnedouttobeoneofthemost7．(forget)ofmylife,butforallthewrongreasons.Often,whenI’malonethesedays,I8．(disturb)bythememoriesofthefacesofparentswhocouldn’tfindtheirchildren,andthesoundofpeoplescreaming9．help.10．thepeopleofLesvosdidtohelpthesepeople,openingtheirhomestothemandsharingthefewpossessionstheythemselvesowned,wasabsolutelyamazing.IwascompletelytouchedbythegenerosityofthepeopleofLesvos.第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。作文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号（∧）并在其下面写出该加的词。删除：把多余的词用斜线（\）划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1、每处错误及其修改均仅限一词；2、只允许修改10处，多者（从第11处起）不计分。Yesterday,ItookawalkinthePanzhihuaParkwithmyparents、Thebeautifulflowerswereinvariouscolor、Wewereenjoyingthesceneryaroundwhensomethingunpleasantcatchmyattention、Notfarfromus,themiddle-agedwomanwaseatingsomeorangeswhilechatwithherfriends、Inmysurprise,shethrewtheorangeskinontheground,totallyignoringthesignnearbywhichwasread“NoLittering”、Ithinkitisnotagoodbehaviorthrowrubbishsomewhere,andallofusshouldloveourenvironment、Asvisitors,youshoulddosomethingtoprotecttheparkafteritbecomesahugedustbin、第二节书面表达（满分25分）29．（25分）假如你是李华，最近你班举行了一场以“HowtoprotectthetraditionalChinesecultures?”为题的讨论。现请你用英语为校报的英语专栏写一篇稿件，介绍讨论的内容和你的体会。要点如下：1.讨论的目的和意义；2.讨论的具体内容；3.你的感受和体会。注意：1.词数100左右；2.可以适当增加细节，以使行文连贯；3.题目已给出，不计入总词数。HowtoprotectthetraditionalChinesecultures?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、D2、D3、A4、D5、A6、D7、C8、B9、D10、A11、A12、D13、D14、B15、A16、A17、A18、B19、C20、D第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。21、1、D2、C3、C4、D22、easilydamaged和dropping…Muchofthatdeclineisduetothesekindsofrevengefulkillings因果关系☞AD.选项easilydamaged.1、C主旨大意题。根据最后一段中讲到一个为期10周的试验“Onlythreecowswerekilledbylionsduringthisperiod-allwithoutthepaintedeyesontheirbehinds..Andallthepaintedcowssurvived.However,Jordanwarnedthatsofarthisisjustapromisingidea”，被画了眼睛的牛没有被狮子杀死，然而，Jordan提醒说，到目前为止，这只是一个很有希望的想法。分析此段可知这个策略可能是带来很大益处的。故选C。23、1、B2、C3、D4、B24、Imaginethatyou’relookingatyourcompany-issuedsmartphoneandyounoticeane-mailfromLinkedln:“Thesecompaniesarelookingforcandidateslikeyou!”Youaren’tnecessarilysearchingforajob,butyou’realwaysopentoopportunities,sooutofcuriosity,youclickonthelink.Afewminuteslateryourbossappearsatyourdesk.“We’venoticedthatyou’respendingmoretimeonLinkedlnlately,soIwantedtotalkwithyouaboutyourcareerandwhetheryou’rehappyhere,”shesays.Uh-oh.It’sanawkwardscene.Attrition(损耗)hasalwaysbeenexpensiveforcompanies,butinmanyindustriesthecostoflosinggoodworkersisrising,owingtotightlabormarkets.Thuscompaniesaremakinggreatereffortstopredictwhichworkersareathighriskofleavingsothatmanagerscantrytostopthem.Methodsrangefromelectronicmonitortowell-designedanalysesofemployees’socialmedialives.Someofthisworkmaybeareasontoletemployeestoquit.Ingeneral,peopleleavetheirjobsbecausetheydon’tliketheirboss,don’tseeopportunitiesforpromotionorgrowth,orareofferedahigherpay;thesereasonshaveheldsteadyforyears.NewresearchconductedbyCEB,aWashington-basedtechnologycompany,looksnotjustatwhyworkersquitbutalsoatwhen.“We’velearnedthatwhatreallyaffectspeopleistheirsenseofhowthey’redoingcomparedwithotherpeopleintheirpeergroup,orwithwheretheythoughttheywouldbeatacertainpointinlife,saysBrianKropp,whoheadsCEB’sHRpractice.“We’velearnedtofocusonmomentsthatallowpeopletomakethesecomparisons.”Technologyalsoprovidescluesaboutwhichstaremployeesmig