天津市滨海学校2019~2020学年高一下学期期中英语试题

天津市滨海学校2019~2020学年高一下学期期中英语试题学校: 姓名： 班级： 一、单项选择1．—Youseemtobeinareallygoodmood.—Ifinishedmylasttesttoday. !NowI’mfree.A．Whatapity B．Whatarelief C．I’vegotit D．I’vemissedthepoint.Astherulesays,everystudentremainseateduntiltheirpapersarecollected.A．can B．mayC.shall D.will.Allchildrenshouldgetaccesstoahigh-qualityeducation theirraceorfamilyincome.A.dependingonB.regardlessof C.dueto D.apartfrom.You havescoldedhimforhispoorperformance.Afterall,hehaddonehisbest.A.mustB.should C.mustn’t DA.must.Wedomorningexerciseeveryday,fromwhichwe alot.A.strengthen B.gain C.award D.benefit.Hestillremembers toShanghaiwhenhewasveryyoung.D.havingtakenA.taking B.beingtakenCD.havingtaken.Modernwomenareenergetic,ambitious,andmostofall,persistent theirgoal.A.inpursuitofB.inreturnforC.intouchwithD.incontrastto.Bobhasnever andweallhavetoworkhardertomakeupforhislaziness.A.letoffsteamB.takenabreathC.pulledhisweightD.settleddown9.---Youshouldhavethankedherbeforeyouleft.---Imeant ,butwhenIwasleavingIcouldn’tfindheranywhere.B.toAB.toC.doing D.doingit10.ThefilmMyPeople,Mycountrywasagreatsuccess, hugeaudiences.A.attracts B.attracting C.attracted D.toattract11.ItwasthefirsttimeinmylifethatI thewonderfulscene.

A．sawBA．sawB．hadseenC．haveseenD．see12．Thedoctorwill yourweightandthengivesomesuggestions.A．takeintoaccountB．contributetoC．dependon D．breakdown13．Dina, formonthstofindajobasawaitress,finallytookapositionatalocaladvertisingagency.A．struggling B．struggled C．havingstruggled D．tostruggle14．Asthe reporter,Mikewasinterviewingthegoldmedalwinners.A．chief B．royal C．major D．entire.（2018・天津）Ican'tfindmypurse.Iitinthesupermarketyesterday,butI'mnotsure.A.shouldleave B.musthaveleftC.mightleave D.couldhaveleft.（2016•浙江）Scientistshaveadvancedmanytheoriesaboutwhyhumanbeingscrytears,noneof hasbeenproved.A.whom B.whichC.what D.that.Heisashyman, heisnotafraidofanythingoranyone.A.so B.butC.or D.as.Greatamountsofwastewater pouredintotheriverfromthefactoriestwoyearsago.A.was B.were C.hasbeen D.hadbeen.Hesawhundredsofdelightedstudentswhohad towelcomehim.A.turnedout B.turneddown C.turnedoff D.turnedleft.—Sorry,Liz.IthinkIwasabitrudetoyou.— ,butdon’tdothatagain!A.Goahead B.ForgetitC.Itdepends D.Withpleasure二、完形填空Igotoffthecollegeshuttlebusandstartedwalking.That'swhenIheardpianomusicandsinging21abovethenoiseofthepeopleandthetraffic.Iwalkedalittle22soIcouldfindoutwhereitwascomingfrom.ThroughthecrowdIsawayoungladysittingatapianowitha23nexttoher.Shewassingingsongsaboutlove,keepingontrying.Thewayshewassinging24meabit.Istoodtherewatchingher25foraboutfifteenminutes,thinkingthatitmusttake26toperformonherowninthemiddleofa27NewYorkferryterminal.SoIstoodtherelistening.Shemusthavefeltmy28becauseshewould29lookinmydirection.Havingenjoyedhermusicforseveralminutes,Iwalkedoverandputsomemoneyinhercarriageandshesaid,“Thankyou." 30continuingmywayhome,Isaidtoher,“Ihavebeengoing31atoughtimelately,butyou'vemademehopefulagain.”“I'mhappythatIcouldhelp,”shereplied.“Whyareyousosad?”“Well,mymumtoldmeshehadgot32fromherjob,andthatmademesad.I'mnotsosurewhattodo...”“Yousee,here’stheproblem.”Sheexplained.“Whenwalking,yourheadwasdown.Don'tlookdefeated,because33comesindifferentwaysandifyourheadisdownyoumightneverseeit.Youshouldsmilemore...liftyourheadup.”Ismiledweakly,amazedby 34shewasencouragingme.So,Iaskedherwhyshewasplayingthepianointhemiddleofacrowdedplace.Sheexplainedtomethatsheseesalotof35peopleintheworldandshetriesto36thepainandbringmorepositivitybysharing37music.Shetoldmethatwhenshewasn'tmakingmusicshestudied38So,thatwashowsheknewsomeofthethingsshewastellingme.Ismiledalittle39becauseIknewthatshewasdoingagoodthing.Afterthatweparted,myhearttouchedand40byamusicalsoul!21．A．liftingB．risingC．soundingD．discovering22．A．fasterB．calmerC．slowerD．easier23．A．capB．referencebookC．carriageD．note24．A．informedB．comfortedC．discouragedD．cured25．A．playB．sitC．participateD．concentrate26．A．timeB．kindnessC．fortuneD．courage27．A．bigB．brilliantC．modernD．crowded28．A．senseB．presenceC．pleasureD．fault29．A．rarelyB．occasionallyC．eventuallyD．carefully30．A．InsteadofB．InspiteofC．InharmonywithD．Onaccountof31．A．onB．outC．throughD．along32．A．stolenB．employedC．firedD．lost33．A．opportunityB．incidentC．musicD．friendship34．A．whoB．whenC．whatD．how35．A．negativeB．commonC．positiveD．extraordinary36．A．relieveB．infectC．devoteD．suffer37．A．lightB．motivationalC．depressingD．reliable38．A．biologyB．psychologyC．biographyD．geography39．A．widerB．longerC．betterD．tenser40．A．shakenB．intendedC．appreciatedD．lightened三、阅读选择FirePreventionInformationTheUniversityofAdelaideemploysafull-timestaffoffirepreventionprofessionals.Theyinspectallcampusbuildingsandtestandmaintainallsprinkler（喷水灭火装置）systemsfirealarmsandfireextinguishers（灭火器）.Theyalsoprovideeducationalprogramsorfiresafetyintheresidencehall.Wheneveryoumovetoanewarea,youshouldlocatethefirealarmpullstationsandthetwoexitsnearestyourroom.FireAlarmsThefloorsofallcampusbuildingsareequippedwithmanual（手动的）firealarmsystemswhichincludefirealarmpullstationsandpipes.Mostarealsoequippedwithautomaticfirealarmsystemsconsistingofheatdetectors,smokedetectorsandsprinklers.Foryoursafety,nevertamperwith（胡乱摆弄）thesesystems.Falsefirealarmsareillegalandmayleadtoimprisonment.FireDrillsAfiredrillwillbeconductedinyourresidencehalleverysemester.Duringafiredrill,pleasedothefollowing:TakeyourroomkeyandID,closeandlockthedoortoyourroom.Exitimmediatelyfromthenearestemergencyexitdonotusealift.Meetoutsideofyourresidencehallandwaitforfurtherinstructions.FireExtinguishersFireextinguishersarelocatedoneachfloorandineachapartment.Useafireextinguisheronlyifyouhavebeentrainedtodoso.Irresponsibleuseofafireextinguishercancreateadangeroussituationforotherresidentsandcouldresultindamagetopersonalproperty.Misuseofafireextinguisherwillresultinfines.SmokeDetectorAsmokedetectorisontheceilinginyourroom.Somebuildingsalsohaveheatdetectorsontheceilings.Dothefollowingtoensurethesafeoperationofyoursmokedetector:Ifyoursmokedetectorisworkingproperly,theredlightshouldbeon.Iftheredlightisnotblinking（闪动），contactresidencehallstaffimmediately.Donotcoverorblockyoursmokedetectorinanyway.Ifasmokedetectorsetsoffanalarmandthereisnofireorsmoke,informyourhallstaff.41．Whatisthemaindutyofthefirepreventionprofessionals?A．Toprovidepart-timejobsforstudents.B．Toleadthestudentstothenearestexits.C．Tocheckandmaintainfirepreventionequipment.D．Totrainteacherstobefirepreventionprofessionals.42．Whatdotheautomaticfirealarmsystemsinclude?A．Pipesandsmokedetectors.B．Smokedetectorsandsprinklers.C．Firealarmpullstationsandpipes.D．Sprinklersandfirealarmpullstations43．Inafiredrill,thestudentsshould .A．rushquicklytoaliftB．gatheratthenearestexit.C．shutthedoorandleaveatonceD．waitforinstructionsinthehall44．Whatdoweknowabouttheuseoffireextinguishers?A．Usingthemwronglyresultsinpunishment.B．Irresponsibleuseofthemcandamagethem.C．Improperuseofthemcandestroytheapartment.D．Usingthemwithoutatrainerpresentisforbidden.45．Toensurethesafeoperationofthesmokedetector,oneshould .A．contactthehallstaffregularlyB．coverthethingsthatburneasilyC．startthesmokedetectorinafireD．makecertaintheredlightisworkingThatcoldJanuarynight,IwasgrowingsickofmylifeinSanFrancisco.ThereIwas,walkinghomeatoneinthemorningafteratiringpracticeatthetheater.Withopeningnightonlyaweekaway,Iwasstilllearningmylines.Iwashavingtroubledealingwithmypart-timejobatthebankandmyactingatnightatthesametime.AsIwalked,IthoughtseriouslyaboutgivingupbothactingandSanFrancisco.Citylifehadbecometoomuchforme.AsIwalkeddownemptystreetsundertallbuildings,Ifeltverysmallandcold.Ibeganrunning,bothtokeepwarmandtokeepawayanypossiblerobbers（抢劫犯）.Veryfewpeoplewerestilloutexceptafewsad-lookinghomelesspeopleunderblankets.Aboutablockfrommyapartment,Iheardasoundbehindme.Iturnedquickly,halfexpectingtoseesomeonewithaknifeoragun.Thestreetwasempty.AllIsawwasashiningstreetlight.Still,thenoisehadmademenervous,soIstartedtorunfaster.NotuntilIreachedmyapartmentbuildingandunlockedthedoordidIrealizewhatthenoisehadbeen.Ithadbeenmywalletfallingtothesidewalk.SuddenlyIwasn’tcoldortiredanymore.IranoutofthedoorandbacktowhereI’dheardthenoise.AlthoughIsearchedthesidewalkanxiouslyforfifteenminutes,mywalletwasnowheretobefound.JustasIwasabouttogiveupthesearch,Iheardthegarbagetruck（垃圾车）pulluptothesidewalknexttome.Whenavoicecalledfromtheinside,“AlisaCamacho?”IthoughtIwasdreaming.Howcouldthismanknowmyname?Thedooropened,andoutjumpedasmallred-hairedmanwithanamusedlookinhiseyes.“Isthiswhatyou’relookingfor?”heasked,holdingupasmallsquareshape.Itwasnearly3a.m.bythetimeIgotintobed.Iwouldn’tgetmuchsleepthatnight,butIhadgotmywalletback.Ialsohadgotbacksomeenjoymentofcitylife.Irealizedthatthecitycouldn’tbeabadplaceaslongaspeoplewerewillingtohelpeachother.46．Howdidthewriterfeelwhenshewaswalkinghomeafterwork?A．Coldandsick. B．Luckyandhopeful.C．Satisfiedandcheerful. D．Disappointedandhelpless.47．Fromthefirstparagraph,welearnthatthewriterwasbusy .A．solvingherproblematthebankB．takingpartinvariouscityactivitiesC．learningactinginaneveningschoolD．preparingforthefirstnightshow48．Onherwayhomethewriter .A．lostherwalletunknowinglyB．wasstoppedbyagarbagetruckdriverC．wasrobbedofherwalletbyamanwithaknifeD．foundsomehomelesspeoplefollowingher49．Inthefifthparagraph,whydidthewritersayshewasdreaming?A．Someoneofferedtotakeherbackhome.B．Ared-hairedmancametoseeher.C．Sheheardsomeonecallhername.D．Herwalletwasfoundinagarbagetruck.50．Fromthetext,wecaninferthatthewriter .A．wouldstopworkingatnightB．wouldstayoninSanFranciscoC．wouldmakefriendswithcleanersD．wouldgiveupherjobatthebank＂DidyouhearwhathappenedtoAdamlastFriday?＂LindseywhisperstoTori.Withhereyesshining,Toribrags,＂YoubetIdid.Seantoldmetwodaysago.＂WhoareLindseyandToritalkingabout?Itjusthappenstobeyourstruly,AdamFreedman.Icantellyouthatwhattheyaresayingis(a)notniceand(b)noteventrue.Still,LindseyandToriaren’tverydifferentfrommoststudentshereatLintonHighSchool,includingme.Manyofourconversationsaregossip(闲话).Ihavenoticedthreeeffectsofgossip:itcanhurtpeople,itcangivegossipersastrangekindofsatisfaction,anditcancausesocialpressuresinagroup.Animportantnegativeeffectofgossipisthatitcanhurtthepersonbeingtalkedabout.Usually,gossipspreadsinformationaboutatopic—breakups,troubleathome,evendroppingout—thatapersonwouldratherkeepsecret.Themoreembarrassingorshamefulthesecretis,thejuicierthegossipitmakes.Probablytheworsttypeofgossipistheabsolutelie.Peopleoftenthinkofgossipersasharmless,butcruelliescancausepain.Ifweknowthatgossipcanbeharmful,thenwhydosomanyofusdoit?Theanswerliesinanothereffectofgossip:thesatisfactionitgivesus.Sharingthelatestrumor（传言）canmakeapersonfeelimportantbecauseheorsheknowssomethingthatothersdon’t.Similarly,hearingthelatestrumorcanmakeapersonfeellikepartofthe＂ingroup.＂Inotherwords,gossipissatisfyingbecauseitgivespeopleasenseofbelongingorevensuperiority（优越感）.Gossipalsocanhaveathirdeffect:itstrengthensunwritten,unspokenrulesabouthowpeopleshouldact.ProfessorDavidWilsonexplainsthatgossipisimportantinpolicingbehaviorsinagroup.Translatedintohighschoolterms,thismeansthatifeverybodyyouhangaroundwithislaughingatwhatJohnworeorwhatJanesaid,thenyoucanbetthatwearingorsayingsomethingsimilarwillgetyouthesamekindofnegativeattention.Thedo’sanddon’tsconveyedthroughgossipwillnevershowupinanystudenthandbook.Theeffectsofgossipvarydependingonthesituation.Thenexttimeyoufeeltheurgetospreadthelatestnews,thinkaboutwhyyouwanttogossipandwhateffectsyour＂juicystory＂mighthave.TOC\o"1-5"\h\z51．Theauthorusesaconversationatthebeginningofthepassageto .A．introduceatopic B．presentanargumentC．describethecharacters D．clarifyhiswritingpurpose52．Animportantnegativeeffectofgossipisthatit .A．breaksuprelationships B．embarrassesthelistenerC．spreadsinformationaround D．causesunpleasantexperiences53．Intheauthor’sopinion,manypeopleliketogossipbecauseit .A．givesthemafeelingofpleasureB．helpsthemtomakemorefriendsC．makesthembetterattellingstoriesD．enablesthemtomeetimportantpeople54．ProfessorDavidWilsonthinksthatgossipcan .A．providestudentswithwrittenrulesB．helppeoplewatchtheirownbehaviorsC．forceschoolstoimprovestudenthandbooksD．attractthepolice’sattentiontogroupbehaviors55．Whatadvicedoestheauthorgiveinthepassage?

A．A．Neverbecomeagossiper.C．Don’tletgossipturnintolies.B．Stayawayfromgossipers.D．Thinktwicebeforeyougossip.Firstitwasjogging.Thenaerobics（有氧运动）.Nottoolongago,Americansdiscoveredracewalking.NowAmericansareintoanewfitnesscraze.They’retakingupbicycling.Overhillsanddownmountainsidesandacrossquietcountryroads,Americansarebusilyrollingalong.Thenumberofadultswhorideforfitnessisaround17million,anincreaseof70percentoverfouryearsago.Twiceasmanywomenasmenarecomingtothesport.Americansarefallinginlovewithbikingbecauseithasspeed,thebenefitsofjoggingandbeautifulscenery.Bicyclingisaveryappropriatesport,whichisimportanttopeoplewhoinjuredtheirkneeswhilejoggingorwhosejointsareachingfromaerobics.Andbikingisarealawakeningforpeoplewhohavebeenintoracewalkinginthepast.Racewalkingisasdullaswatchingpaintdry.Themostpopularkindofbicycleforpeoplewhoarenewtothesportisthemountainbike,whichhasafixedframewithwidetiresanduprighthandles.Mountainbikesalsohavemanygears（齿轮）tomakeiteasiertoclimbhills.About5millionAmericansridemountainbikes,comparedwith200,000whorodethemonlyfiveyearsago.Costsrangefromabout$130forabottom-of-the-linebicycletomorethan$2,700foranexpensivebicycle.Mountainbikinghasattractedsomepeoplewhoracedownthesidesofmountainslikeabatoutofhell.Butmostridersrideslowlyandtheyrarelyventurefarfromhome.Thebikingcrazehasbroughtanunexpectedprofit（盈利）toclothingandbicycleaccessory（附属品）makers.Lastyear,bikerspaid$630millionforbikingclothesandaccessories.Bicyclingseemslikelytocontinueitsfantasticgrowth.56．Themainideaofthearticleis .A．ridingabicyclingisoneofthemostdangeroussportsinAmericaB．AmericansarerollingalongC．bicyclingisthelatestfitnesscrazeinAmericaD．MostpeopleinAmericawanttoownahand-madebicyclethatcancostmorethan$2,70057．Racewalkingisaboutasdullaswatchingpaintdrybecause .A．racewalkingisaslow-movingsportB．thenumberofadultswhorideforfitnesshasgrown70percentinfouryearsC．ithasspeed,thebenefitsofjoggingandbeautifulsceneryD．Americansaretakingupbicycling58．Ifyouinjuredyourknees,itwouldbepainfulto .A．walkupstairs B．throwabaseballC．writeyourname D．usethetelephone59．Onereasonmountainbikesaresopopularisthat .A．mostpeoplearenewtothatsportB．about5millionAmericansownmountainbikesC．acheapmountainbikecostsabout$130D．theyhavemanygearstomakeiteasiertorideuphills60.Thebicyclingcrazehasbeenawindfall（意外收获）for.A．peoplewhowanttoridelikeabatoutofhellB.bicycleaccessorymakersC.racewalkersD.twiceasmanywomenasmen四、根据所给汉语意思完成句子Atthesametime,afriendofRyan’smotherhelpedmakehisstory （公开）.（根据汉语意思填空）（除此之外）,importantadvanceshavebeenmadeinmedicineandenvironmentalsciencethankstoincreasingcomputerpower.（根据汉语意思填空）Lateintheafternoon,theboys（搭建）theirtentinthemiddleofafield.（根据汉语意思填空）DuringthewarFrankusedtomake（零配件）foraeroplanes.（根据汉语意思填空）Oneafternoonshe（出发）fromthecoast.（根据汉语意思填空）IwasdisappointedwithmyteammatebecauseIfelt（失望）byhim.（根据汉语意思填空）五、根据汉语意思填空Perhapsyourfriendwantssome（直言不讳的）commentsfromyousothattheycanimprove.（根据汉语意思填空）68．Ifollowedhiseyesand （从一边看向另一边）theroomtothechildrenwhoweredrawingonthetable.（根据汉语意思填空）Duringthattimeshe（游过）adistanceofeightmiles.（根据汉语意思填空）Ryanpersuadedhisclassmatesto（捐赠）money.（根据汉语意思填空）44．D【详解】参考答案1．B【详解】考查交际用语。句意：——你看起来心情很好。——我今天完成了最后一次考试。我总算松了一口气!现在我自由了。A.Whatapity真遗憾；B.Whatarelief总算松了一口气；C.I’vegotit我明白了；D.I’vemissedthepoint我错过了重点。根据“Ifinishedmylasttesttoday.”可知，完成最后一场考试后终于松了一口气。故选B。2．C【详解】考查情态动词。句意：正如规则所说，每个学生都必须坐着直到他们的试卷被收集起来。shall可用于第二/第三人称陈述句中,表示警告/许诺/命令/威胁/规定等语气。此处表示规定，故选C。【点睛】Shall用法归纳Lshouldhavedonesth/shouldnothavedonesth表责备语气。should可用来表示推测。shall可用于第一/第三人称疑问句中，表示请求许可。shall可用于第二/第三人称陈述句中，表示警告/许诺/命令/威胁/规定等语气。表将来时时,should是shall的过去式。should可以表示劝告，建议语气，"应该/应当"。should可以用在虚拟语气中，有时可以省略;有时不可以省略，表示"万一"。should可以表示"居然/竟然"，有不相信/惊愕的含义。3．B【详解】考查介词短语辨析。句意：无论哪个种族或家庭收入如何，所有儿童都应获得高质量的教育。A.dependingon依靠；B.regardlessof不管，不顾；C.dueto由于，因为；D.apartfrom除 之外。结合句意的需要和短语的意思可知，使用regardlessof是正确的，即不管属于哪个种族的人或者家庭收入如何，儿童都应获得高质量的教育。故选B项。#．C5555.D50．B【分析】本文主人公由于不能适应城市节奏而失望灰心正打算离开城市时，无意丢失钱包，恰被好心人拾得并归还，从而让她有了在城市生活下去的信心。本文情节起伏不大，但大转折的结尾似乎出乎意料又在情理之中。46．推理判断题。根据首段作者想放弃演戏甚至城市生活的消极心态说明我走在大街上的心情，用disappointed形容正确。第二段中的高楼和空寂的大街衬托出我的渺小和无助，因此用helpless形容也很正确。结尾垃圾工拾到我的钱包主动还给我使我对生活有了新的认识，用helpeachother映衬出作者开始时的helpless。故选D。.细节理解题。根据第一段的Withopeningnightonlyaweekaway,Iwasstilllearningmylines.Iwashavingtroubledealingwithmypart-timejobatthebankandmyactingatnightatthesametime.可知，离开幕式只有一周了，我还在学习台词。作者是她在为第一个夜场演出做准备。故选D。.细节理解题。根据第三段的Still,thenoisehadmademenervous,soIstartedtorunfaster.NotuntilIreachedmyapartmentbuildingandunlockedthedoordidIrealizewhatthenoisehadbeen.Ithadbeenmywalletfallingtothesidewalk.可知，作者在回家的路上不知不觉地丢了钱包。故选A。.细节理解题。从第五段的句子Whenavoicecalledfromtheinside,“AlisaCamacho?”IthoughtIwasdreaming.可知，听见有人叫他的名字，作者以为在做梦。故选C。.推理判断题。根据最后一段Ialsohadgotbacksomeenjoymentofcitylife.Irealizedthatthecitycouldn'tbeabadplaceaslongaspeoplewerewillingtohelpeachother.可知，我意识至U只要人们愿意互相帮助，这个城市就不会是个坏地方。因此推测作者可能会继续留在旧金山。故选B。.A.D.A.B【分析】本文是一篇议论文。文章讨论了传言的危害和人们为什么喜欢传闲话。.推理判断题。根据文章第三段的Manyofourconversationsaregossip（闲话）可知，我们的许多谈话都是闲话。所以判断出短文以对话的形式开始，就是为了引出第三段既本文的主题。故选A。.细节理解题。根据文章第四段的Animportantnegativeeffectofgossipisthatitcanhurtthepersonbeingtalkedabout.Peopleoftenthinkofgossipersasharmless,butcruelliescancausepain可知，闲话的一个重要的负面影响是它会伤害被谈论的人，人们常认为闲话是无害的，但残酷的谎言会引起痛苦。所以闲话的一个重要的负面影响是引起不愉快的经历。故选D。.细节理解题。根据文章第五段的Theanswerliesinanothereffectofgossip:thesatisfactionitgivesus可知人们散播传言是因为它会给他们带来满足感，故选A。.细节理解题。根据文章第六段的ProfessorDavidWilsonexplainsthatgossipisimportantinpolicingbehaviorsinagroup可知他认为传言能帮助人们监督、观察自身的行为，故选B。55.推理判断题。根据文章最后一段的Thenexttimeyoufeeltheurgetospreadthelatestnews,thinkaboutwhyyouwanttogossipandwhateffectsyour“juicystory”mighthave可知，下次当你有传播最新消息的冲动时，想想你为什么想八卦，你的“有趣的故事”会有什么影响。由此判断出作者的建议是让人们在传闲话之前三思而后行。故选D。56．C57．A58．A59．D60．B【分析】本文是说明文。骑自行车成了美国最新的健身热潮，并且人数持续增长。文章介绍了骑自行车锻炼的好处，山地车受欢迎的原因，骑自行车热潮给服装和自行车配件制造商带来了意想不到的盈利。主旨大意题。根据第二段NowAmericansareintoanewfitnesscraze.They,retakingupbicycling.Overhillsanddownmountainsidesandacrossquietcountryroads,Americansarebusilyrollingalong.第三段Thenumberofadultswhorideforfitnessisa