北京市2022高考英语一轮复习 练习手册（8）（含解析）新人教版

北京市2022高考英语（新人教版）一轮复习练习手册（8）附详细解析课时作业(八)　[必修2　Unit3Computers](限时：35分钟)完形填空（1）LovingKindnessIsTwiceBlessedIfeltgloomy(沮丧的)theotherday.Theweatherhadbeendarkandrainy,andIjustdidn’tfeelso1.AsIwassittingatmydesk,I2itwasthebirthdayofadearlong-timefriend—asingle,middle-agedwomanwhohasdevotedthepast30yearstonursingandlovesher3.Knowingthatshedoesn’thavefamilyintown,I4togiveheracall.Sureenough,shewasonB-shift,5toworklateintotheevening,andwouldn’thave6ofabirthdaythisyear.Asalways,7,shesoundedcheerfulandwashappythatI8.AfterIhungup,Icouldn’t9thefeelingthatshewouldreallyappreciatealittleattentiononherspecialday.10feelingalittlegloomymyself,Itriedtoputitoutofmymind,butasthedaypassedIcouldn’tshakethethought.I11gavein,andthateveningsetofftothehospitalwithacard,acheesecake,andsomeballoons.Myfriend’sgratefulsmileandjoyfulsurprise12meI’ddonetherightthingandwereagenerous13forthelittleeffortithadtaken.WhenIgothome,IrealizedthatnotonlyhadIcheeredupa14friendonherbirthday,butmyowngloomyfeelingshadalsodisappeared.Makingherdayhad15myown!Isn’tthatthewayitis16wetakethetimeandmakethe17todosomethingforsomeoneelse?It’slikethelittlesaying,“Lovingkindnessistwiceblessed;itblesseshimwhogives,andhimwho18.”Cheeringuppeopleontheirbirthdaysisn’ttheonlythingwecandotomaketheirday.Lifeconstantlypresentsuswith19totakeanextrastepordoakinddeedthatwillmakeadifferenceto20.Andthewonderfulthingisthataswedo,itchangesthingsforthebetterforustoo.1.A.specialB.positiveC.nervousD.proud13\n1.A.explainedB.complainedC.rememberedD.informed2.A.familyB.trainingC.workD.school3.A.decidedB.continuedC.agreedD.refused4.A.surprisedB.disappointedC.boredD.prepared5.A.muchB.manyC.littleD.few6.A.thoughB.besidesC.thereforeD.otherwise7.A.admittedB.calledC.succeededD.apologized8.A.experienceB.imagineC.shakeD.understand9.A.AlmostB.EvenC.NeverD.Still10.A.luckilyB.finallyC.unhappilyD.hardly11.A.convincedB.advisedC.promisedD.reminded12.A.responseB.contributionC.rewardD.share13.A.carelessB.lonelyC.weakD.curious14.A.troubledB.takenC.wastedD.made15.A.whenB.whereC.whyD.how16.A.suggestionB.friendC.effortD.call17.A.triesB.receivesC.expectsD.cares18.A.opportunitiesB.dreamsC.choicesD.regrets19.A.someoneB.somethingC.everyoneD.Everything【解题导语】送人玫瑰，手有余香；帮助别人，快乐自己！帮助别人，使我们得到最美好的祝愿；帮助别人，使他人得到最美丽的微笑。生活让我们手牵手，沐浴在阳光下，帮助别人，快乐自己，让世界充满爱吧！1.【解析】选B。positive意为“乐观的”，此处的didn’tfeelsopositive与上文的feltgloomy相符。故选B。【解题误区】special特别的；nervous紧张的；proud自豪的，均不符合语境。2.【解析】选C。句意为：当我坐在椅子旁的时候，我记起我亲密的好朋友的生日。remembered记起，故选C。【解题误区】explained解释；complained投诉；informed告诉，均不符合当时的情景。3.【解析】选C。从事护士职业30年，很喜欢她自己的工作。work工作。故选C。13\n【解题误区】family家庭；training训练；school学校。此处护士是一种职业，这三项都不符合文意。4.【解析】选A。句意为：了解到她没有家人在镇上，我决定给她打个电话。decidedtodo决定做某事，故选A.【解题误区】continued继续；agreed同意做；refused拒绝，都可以和不定式搭配，但不符合文意。5.【解析】选D。句意为：确定无疑地，她是B班，准备工作到深夜。preparedtodo准备做某事，故选D。【解题误区】surprised惊讶的；disappointed失望的；bored枯燥的，均与当时的情镜不符。6.【解析】选A。从前一句得知，她要工作到深夜，所以不会有太多的时间过生日。much代词，此处指时间。故选A。【解题误区】many和few修饰可数名词，不能单独做代词。little为代词，表示几乎没有，但和前面的wouldn't一起表示肯定的意思，与文意相矛盾。7.【解析】选A。根据上下文推出，虽然她没时间自己庆祝生日，但是好朋友打电话庆祝，她会很高兴的。此处though意为“不过”，表转折，故选A。【解题误区】besides除……之外还有；therefore因此；otherwise否则，均不符合文意。8.【解析】选B。根据前文提到作者决定打电话，后文又提到的挂电话，故选B。【解题误区】admitted承认；succeeded成功做某事；apologized道歉，均与文意不符。9.【解析】选C。句意为：我挂断电话之后，她一定会感激我在如此特别的一天给她打电话，这种感觉不会动的。此处shake为动摇,而且根据后面……butasthedaypassedIcouldn’tshakethethought.故选C。【解题误区】experience经历；imagine想象；understand理解，均不能表达当时作者坚信朋友一定会感激的情感。10.【解析】选D。句意为：我仍然感觉一点沮丧，努力把它放在脑后。still仍然，与文章开头相呼应。故选D。【解题误区】其余几项都不能表示作者当时还有一点沮丧。13\n11.【解析】选B。句意为：我最终屈服了，那天晚上，我拿着贺卡、奶酪蛋糕和气球出发去医院。finally最后，此处强调作者虽然还有点沮丧，但最后还是决定给好朋友过生日去。故选B。【解题误区】luckily幸运地；unhappily幸福地；hardly几乎不；均不副词，但不符合语境。12.【解析】选A。作者朋友感激的微笑和那种惊喜让作者相信自己做对了。convinced使……相信，故选A。【解题误区】advised建议；promised允诺；reminded提醒；均不能表示作者相信自己做对了。13.【解析】选C。根据前文得知：“她的笑容和惊喜是对我慷慨的回报。”reward回报，故选C。【解题误区】response反映；contribution贡献；share分享。此处一点努力换得是朋友的高兴，这应该是对“我”的“回报”。14.【解析】选B。作者没有家人在镇里，所以孤独。lonely孤独的，故选B。【解题误区】careless粗心的；weak虚弱的；curious好奇的，这几项都不和前文相符。15.【解析】选D。句意为：让她高兴就是让我高兴。此处mademyown与makeherday相符合，故选D。【解题误区】其余几项都与makeherday不相符合。16.【解析】选A。句意为：难道那不是一种方式吗？当我们花费时间，努力为其他人做一些事情的时候，（我们也得到了相应的回报）。when当……时候，故选A。【解题误区】where哪里；why为什么；how如何，这三项都不引导条件状语从句，与文意也不符。17.【解析】选C。maketheeffortto……为固定搭配，表示努力做某事。根据前文作者为朋友庆祝生日得知，应该是为其他人努力做事，故选C。【解题误区】其余几项均不能和theeffortto…相搭配。18.【解析】选B。句意为：.善良能得到双倍回报。它既祝福给予的人，也祝福得到的人。receives与gives相对应。故选B。【解题误区】其余几项都不能和gives相对应。19.【解析】选A。此处表示生活总是给我们很多机会去采取行动做好事。opportunities机会，故选A。【解题误区】dreams梦想；choices选择；13\nregrets遗憾。此处应是做好事的机会，故这三项都不符合文意。20.【解析】选A。句意为：生活总是提供给我们很多机会采取其他行动或做一件对某个人有重大影响的好事。someone某个人。本文提到作者给他朋友过生日，他朋友应该是“某个人”，故选A。【解题误区】本题易误选C。everyone每个人。根据常识我们不可能做一件好事对所有人都有影响，故不能选。************************************************************结束Ⅰ.单项填空1．Theboywentin________whenheleftforschoolthathelefthiskeyinsidethehouse.A．arushsoanxiousB．asuchanxiousrushC．soananxiousrushD．suchananxiousrush2．________otherswheneveryoucan，andyouwillmaketheworldanicerplacetolivein.A．HelpB．HelpedC．TohelpD．Helping3．Thegirlhadhardlyrungthebell________thedoorwasopenedsuddenly,andherfriendsrushedouttogreether.A．beforeB．untilC．asD．since4．Theystoodthereandopenedtheireyeswide,________whatwashappening.A．pullingoverB．watchingoverC．gettingoverD．goingover5．—Ithinkheistakinganactivepartinsocialwork.—Iagreewithyou________．A．inthewayB．onthewayC．bythewayD．inaway6．Withsomanythings________，Ihavetoworklateintothenight.A．todealwithB．dealtwithC．dealingwithD．beingdealtwith7．—Doyouthinkattendingtrainingcoursesisagreathelpwhenyoulookforanewjob?—Well，italldepends.________，itgivesmeachancetotry.A．SomehowB．BesidesC．AnywayD．Therefore8．—That'sthethirdtimehe'swontheawardinthisfield.—Yes.He________hismaximumpotentialinthepastdecade.A．exploredB．isexploringC．hasbeenexploringD．hasexplored9．Withsomanyproblems________，Jacklookslikeacatonahottinroof.A．solvedB．tosolveC．solvingD．tobesolved13\n10．Obviously,wecandrawtheconclusionthatgoodmanners________frompolitenessandrespectforothers.A．happenB．ariseC．keepD．rise11．Witheverythinghehadmissing,hewas________hopelessandkilledhimself.A．hardlyB．luckilyC．sincerelyD．totally12．Astudyshowsthatwalkingfastinyouroldageisa________thatyouwilllivealonglife.A．signB．markC．symbolD．signal13．Thenewinventionmadelastmonthwouldhaveavarietyof________inindustry.A．discoveriesB．profitsC．guidancesD．applications14．Mymotherwasovertheagelimitand________，herapplicationforthejobwasrejected.A．asaresultB．inconclusionC．worsestillD．what'smore15．—I'msorryIdidn'tfinishitontime.—________．A．Fine，thanksB．No，thanksC．ThanksalotD．ThanksanywayⅡ.完形填空Ioftenreadofincidentsofmisunderstandingorconflict.I'mleft__16__.Whydothesepeoplecreatemistrustandproblems,especiallywiththosefromother__17__？IwasgrowingupinKualaLumpurintheearly1960s，__18__childrenfromdifferentracesandreligionsplayedandstudied__19__inharmony.Atthattimemyfamilylivedastone's__20__fromIsmail's.AndnoonewasbotheredthatIsmailwasaMalayMuslimandIwasanIndianHindu—wejust__21__ourdifferences.Perhaps,oureldershadnotfilledourheadswithunnecessaryadvice,well__22__orotherwise.Wewereninewhenwebecamefriends.Duringtheschoolholidays,we'd__23__thecountrysideonourbicycles,hopingto__24__theunexpected.AttimesIsmailwouldaccompanymyfamilyaswemadearareshoppingtriptotown.Wewouldbegladofhis__25__．WhenIwastwelve,myfamilymovedtoJohor.Ismail'sfamilylaterreturnedtotheirvillage,andI__26__touchwithhim.Onespringafternoonin1983,IstoppedataxiinKualaLumpur.I__27__mydestination.Thedriveracknowledgedmy__28__butdidnotmoveoff.Instead,helooked__29__atme.“Raddar？”hesaid,usingmychildhoodnickname(绰号)．Iwasastonishedatbeingso__30__addressed(称呼).Unexpectedly!ItwasIsmail!Evenaftertwo__31__westillrecognizedeachother.Graspinghisshoulder,Ifeltatrueaffection,something__32__todescribe.Ifwecanallowourchildrentobe__33__withoutprejudice,they'llbuildfriendshipswithpeople,regardlessofraceorreligion,whowillbe__34__theirsidethroughthickandthin.Onsuchfriendshipsaresocietiesbuiltand__35__we13\ncantrulybe,asWilliamShakespeareoncewrote，“wehappyfew,webandofbrothers”．16．A.interestedB．pleasedC．puzzledD．excited17．A.partiesB．citiesC．villagesD．races18．A.whyB．whichC．howD．when19．A.togetherB．aroundC．aloneD．apart20．A.dropB．throwC．moveD．roll21．A.refusedB．madeC．soughtD．accepted22．A.paidB．meantC．preservedD．treated23．A.exploreB．searchC．discoverD．desert24．A.getthroughB．dealwithC．comeacrossD．takeaway25．A.arrivalB．choiceC．effortD．company26．A.lostB．gainedC．developedD．missed27．A.statedB．orderedC．decidedD．chose28．A.attemptsB．instructionsC．opinionsD．arrangements29．A.anxiouslyB．carelesslyC．disappointedlyD．fixedly30．A.familiarlyB．strangelyC．fullyD．coldly31．A.departuresB．monthsC．yearsD．decades32．A.possibleB．funnyC．hardD．clear33．A.themB．themselvesC．usD．ourselves34．A.fromB．byC．withD．against35．A.stillB．otherwiseC．thenD．insteadⅢ.阅读理解You'relostintheworldofdreamsandsleep.Yourollover,smilingasyoucomeacrossaswimmingpoolfilledwithchocolate.Andthen,yourwonderfuldreambecomesanightmare(噩梦)whensomeoneisscreaming,“Getup！”It'sjustwhateveryteenagergoesthrougheachmorning!Now,thereseemstobeoneschoolthatfinallyunderstandsthatrequiringteenstoshowupat9amisnotjustcruelbutalsoharmfultoboththekidsandtheschool.MonkseatonHighSchoolinNorthTyneside,Britain,recentlydecidedto13\nexperimenttoseeifthereisanydifferenceinstudentbehavioriftheyjustpushedbackthestartoftheirdaybyonehour,from9amto10am.Andtheresultsaresurprising.Sincecarryingoutthelaterstart,Monkseatonhasseena28%dropintruancy,_evenhardlyanylateness,andbestofall,highertestscores.Oneofthereasonsisthattheteenagersaremuchhappiertohavetheextrahourofsleep,butthereisalsoascientificreasonbehindwhytheyneedtheextrasleep.Theschool'sdecisiontopushbackthetimewasbasedontheresearchdonebyOxfordProfessorRussellFoster,whopointedoutthatteenagersandadultshavedifferentsleepcycles，explainingwhyteenagersgotobedlateandwakeuplate.Whileadultsarewideawakeandreadyat8am,teenagersarenotfullyawakeuntil10am,sometimesevennoon.Teachersmayarguethattheirstudentsperformbetterinthemorning,butinfact,itisbecausetheyareinthezonewhiletheirstudentsarestillsleepy,makingthestudentseasiertocontrol.Memorytestsprovethatthemoredifficultclassesshouldbeintheafternoonwhenteenagersaremostwideawake.TheMonkseatonschoolofficialsareencouragedbytheresultsandplanonvotingtomakeitapermanentchange.36．What'sthemeaningoftheunderlinedword“truancy”？A．Grades.B．Classes.C．Absence.D．Practice.37．Whatcanwelearnfromthepassage?A．Teenagersandadultshavethesamesleepcycle.B．Teenagersarefullyawakeat10amasawhole.C．Teenagersaremuchhappiertosleepthanstudy.D．Teenagersneedtheextrasleepalsoforascientificreason.38．WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?A．MonkseatonHighSchoolissatisfiedwiththeresultoftheexperiment.B．Itisverycruelfortheteenagerstoshowupinclassat9ameveryday.C．MonkseatonHighSchoolplanstochangetheschooltimeforever.D．Infact,teenagersperformbetterinthemorningthanintheafternoon.39．What'sthebesttitleforthispassage?A．Getupearly,teenagers!B．Finally,aschoolunderstandsteenagersC．Whydoteenagersstayuplate?D．DifferencesbetweenteensandadultsⅣ.短文填词TheInternetwasfirstsetupinthe1960s.Atthattime,thecomputerwasbothlarge40.________expensiveandthenetworkswereunableto41.w________well.Ifoneofthecomputersbrokedown,thewholenetworkswouldbeunabletorun.Atthe42.b________，theInternetwasjust43.e________bythegovernment.Bythe1970s,ithadbeenusedinuniversities,banksand44.________(医院).Intheearly1990s,computersbecame45.________(便宜)andeasiertooperate.Nowitisvery13\n46.________(方便)tologontheInternet.Itissaidthateachdaytens47.________millionsofpeoplelogontheInternet.Sendingemailsisbecoming48.________andmorepopular.TheInternethasbecomethemostimportant49.p________ofpeople'slife.参考答案课时作业(八)Ⅰ.1.D　考查词序。such与冠词的词序是：sucha/an＋形容词＋单数名词。2．A　考查“祈使句＋and/or＋句子”结构。3．A　考查从属连词。句意：这个女孩几乎没来得及按门铃门就突然被打开了，她的朋友们冲出去欢迎她。故选A项。B、C、D三项在句中不合逻辑，故排除。4．B　考查动词短语辨析。句意：他们站在那里睁大眼睛监视所发生的事情。pullover意为“路边停车”；watchover意为“看守，监视，照管”；getover意为“克服，恢复，越过”；goover意为“检查，复习”。根据句意可知B项正确。5．D　考查介词短语辨析。句意：某种程度上我与你观点一致。intheway意为“挡道”；ontheway意为“在途中，即将到来”；bytheway意为“顺便说，顺便问一下”；inaway意为“在某种程度上，从某一点上看”。根据句意可知D项正确。6．A　考查非谓语动词的用法。由空格后的部分可以看出，“somanythings”很多事情还没有处理，所以用不定式表示将来。句意：有很多事情有待于处理，我得工作到深夜。7．C　考查副词词义辨析。somehow以某种方式或原因；besides另外，再有；anyway无论如何；therefore因此。由句意“——噢，要看情况而定。无论怎样，它给我提供了一次尝试的机会”可知应选C项。8．C　考查动词的时态。语境：近十年来，他一直在挖掘他的最大潜能，所以又获奖了。9．B　考查不定式作宾补的用法。该题的关键是对俗语“acatonahottinroof(像热锅上的蚂蚁一样)”的理解。既然是像热锅上的蚂蚁一样，说明很多问题有待于解决，所以用不定式作宾补，在该结构中相当于省略了forsb.，故选B。10．B　考查动词辨析。arisefrom“起因于，由……引起”，符合题意。rise上升；happen发生；keep保持。11．D　考查副词辨析。totally完全地。句意：随着他的一切都失去了，他完全地绝望而自杀了。hardly几乎不；luckily幸运地；sincerely真诚地。12．A　考查名词辨析。sign迹象，标志。句意：一项研究表明你在老年时走得快是你会长寿的标志。mark记号；symbol象征；signal信号。13．D　考查名词辨析。application应用。句意：上个月新的发明将会在工业上广泛应用。discovery发现；profit利润；guidance指导。14．A　考查短语辨析。A项意为“结果”；B项意为“总之；最后”；C项意为“更差的是”；D项意为“再有；更有甚者”。句意：我母亲超过了年龄限制，结果她的工作申请被拒绝了。15．D　考查情景交际。A项是见面打招呼的用语；B项用于委婉拒绝；C项表示非常感谢；D项意为“无论如何，还是要谢谢你”。联系上句“抱歉我未能按时完成”可知应选D项。13\nⅡ.“我”从小与邻里一些不同种族和宗教信仰的孩子快乐地生活在一起，20年后“我”邂逅了儿时的朋友，那种亲切难以言表。如果我们让自己的孩子毫无偏见地和其他孩子建立友谊，那我们会成为快乐的兄弟帮。16.C　“我”对周围发生的误解或冲突感到疑惑。17.D　根据上下文，出现的不信任和问题主要是不同种族的偏见造成的。18.D　when在此引导定语从句，指代前文的intheearly1960s。19.A　根据上下文，“我”与来自不同种族和宗教信仰的孩子们和谐地在一起玩耍和学习，故选A。20.B　astone'sthrow意为“一颗石头掷出去的距离”，即很近。21.D　根据上下文，“我们”都接受彼此的不同(包括种族和宗教方面)。22.B　语境：我们的长辈没有向我们灌输没必要的建议，无论是善意的还是恶意的。wellmeant意为“善意的”。23.A　“我们”一起骑着自行车到乡间探险，希望能有一些意外收获。explore探索，探险。24.C　comeacross偶然遇见或发现。25.D　有时，当Ismail想和“我们”一起去镇上做“我们”难得一次的购物时，“我们”也会很高兴地让他同去。company此处意为“陪同”。26.A　根据下文，“我”20年后才再次遇见Ismail，所以是儿时失去了联系。27.A　“我”向司机说明了“我”的目的地。state叙述，说明。28.B　司机确认了“我”的目的地，但并没有出发。instructions意为“指示”，在此指“我”所告诉司机的目的地。29.D　他定定地看着我。anxiously焦急地，担忧地；carelessly粗心地；disappointedly失望，均不合题意。30.A　根据上文，司机叫的是“我”儿时的绰号，所以“我”对如此熟悉的称呼感到震惊。31.D　由上下文可知，“我”与Ismail再次相遇是经过较长的一段时间，因此D项符合题意。32.C　“我”感觉到了一种真正的感情，一种难以表达的感情。33.B　如果我们能让我们的孩子真诚，没有偏见，他们就能与人建立友谊，而不管他们是什么种族或宗教。beoneself显得真诚，自然。34.B　这些朋友将在他们身边与他们同甘共苦。bytheirside在他们身边。35.C　社会建立在这样的友谊上，那么我们就真的能像莎士比亚所说的“我们快乐，我们是兄弟帮”。Ⅲ.本文介绍英国一所学校大胆推迟早上学生的到校时间，结果学生迟到、旷课现象减少，成绩明显提高。学校准备投票决定是否永久将这项举措保持下去。36．C　词义猜测题。根据文章可知，自实行了这项措施后，在truancy方面下降了28%，甚至几乎没有人迟到。这里讲的是实行这项措施的好处，结合四个选项，可知选C。37．D　推理判断题。依据第五段可知学校推迟学生到校时间是有科学依据的，学生在早上需要更多的睡眠时间。38．D　正误判断题。依据第六段最后一句推断学生下午状态更佳。学生在上午更易管理(貌似专心听讲)，是因为他们在此时还没有完全清醒。39．B　主旨概括题。本文讲了一所学校根据青少年的睡眠研究改变学生上学时间的事。结合文章内容可知B项作为标题能够突出本文主旨，又比较新颖。Ⅳ.40.and　41.work　42.beginning　43.employed13\n44．hospitals　45.cheaper　46.convenient　47.of48．more　49.part课后阅读-----------Moderncavemen现代洞穴人Caveexploration,orpot-holing,asithascometobeknown,isarelativelynewsport.Perhapsitisthedesireforsolitudeorthechanceofmakinganunexpecteddiscoverythatlurespeopledowntothedepthsoftheearth.Itisimpossibletogiveasatisfactoryexplanationforapot-holer'smotives.Forhim,caveshavethesamepeculiarfascinationwhichhighmountainshavefortheclimber.Theyarouseinstinctswhichcanonlybedimlyunderstood.ExploringreallydeepcavesisnotataskfortheSundayafternoonrambler.Suchundertakingsrequirethepreciseplanningandforesightofmilitaryoperations.Itcantakeaslongaseightdaystorigupropeladdersandtoestablishsupplybasesbeforeadescentcanbemadeintoaverydeepcave.Precautionsofthissortarenecessary,foritisimpossibletoforetelltheexactnatureofthedifficultieswhichwillconfrontthepot-holer.ThedeepestknowncaveintheworldistheGouffreBergernearGrenoble.Itextendstoadepthof3,723feet.Thisimmensechasmhasbeenformedbyanundergroundstreamwhichhastunneledacoursethroughaflawintherocks.TheentrancetothecaveisonaplateauintheDauphineAlps.Asitisonlysixfeetacross,itisbarelynoticeable.ThecavemightneverhavebeendiscoveredhadnottheentrancebeenspottedbythedistinguishedFrenchpot-holer,Berger.Sinceitsdiscovery,ithasbecomeasortofpot-holers'Everest(珠峰).Thoughanumberofdescentshavebeenmade,muchofitstillremainstobeexplored.Ateamofpot-holersrecentlywentdowntheGouffreBerger.Afterenteringthenarrowgapontheplateau,theyclimbeddownthesteepsidesofthecaveuntiltheycametonarrowcorridor.Theyhadtoedgetheirwayalongthis,sometimeswadingacrossshallowstreams,orswimmingacrossdeeppools.Suddenlytheycametoawaterfallwhichdroppedintoanundergroundlakeatthebottomofthecave.Theyplungedintothelake,andafterloadingtheirgearonaninflatablerubberdinghy,letthecurrentcarrythemtotheotherside.Toprotectthemselvesfromtheicy13\nwater,theyhadtowearspecialrubbersuits.Atthefarendofthelake,theycametohugepilesofrubblewhichhadbeenwashedupbythewater.Inthispartofthecave,theycouldhearaninsistentboomingsoundwhichtheyfoundwascausedbyasmallwater-spoutshootingdownintoapoolfromtheroofofthecave.Squeezingthroughacleftintherocks,thepot-holersarrivedatanenormouscavern,thesizeofahugeconcerthall.Afterswitchingonpowerfularclights,theysawgreatstalagmites--someofthemoverfortyfeethigh--risingupliketree-trunkstomeetthestalactitessuspendedfromtheroof.Roundabout,pilesoflimestoneglistenedinallthecoloursoftherainbow.Intheeerie（可怕的）silenceofthecavern,theonlysoundthatcouldbeheardwasmadebywaterwhichdrippedcontinuouslyfromthehighdomeabovethem.洞穴勘查——或洞穴勘探——是一项比较新的体育活动。寻求独处的愿望或寻求意外发现的机会的欲望吸引人们来到地下深处。要想对洞穴探险者的动机作出满意的解释是不可能的。对洞穴探险者来说，洞穴有一种特殊的魅力，就像高山对登山者有特殊魅力一样。为什么洞空能引发人的那种探险本能，人们对此只能有一种模模糊糊的理解。探测非常深的洞穴不是那些在星期日下午漫步的人所能胜任的。这种活动需要有军事行动般的周密布署和预见能力。有时需要花费整整8天时间来搭起绳梯，建立供应基地，然后才能到一个很深的洞穴里。作出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。世界上最深的洞穴是格里诺布尔附近的高弗.伯杰洞，深达3,723英尺。这个深邃的洞穴是由一条地下暗泉冲刷岩石中的缝隙并使之慢慢变大而形成的。此洞的洞口在丹芬阿尔卑斯山的高原上，仅6英尺宽，很难被发现。若不是法国著名洞穴探险家伯杰由于偶然的机会发现了这个洞口的话，这个洞也许不会为人所知。自从被发现以后，这个洞成了洞穴探险者的珠穆朗玛峰，人们多次进入洞内探险，但至今尚有不少东西有待勘探。13\n最近，一队洞穴探险者下到了高弗.伯杰洞里。他们从高原上的窄缝进去，顺着笔直陡峭的洞壁往下爬。来到一条狭窄的走廊上。他们不得不侧着身子往前走，有时过浅溪，有时游过深潭。突然，他们来到一道瀑布前，那瀑布奔泻而下，注入洞底一处地下湖里。他们跳入湖中，把各种器具装上一只充气的橡皮艇，听任水流将他们带往对岸。湖水冰冷刺骨，他们必须穿上一种特制的橡皮服以保护自己。在湖的尽头，他们见到一大堆一大堆由湖水冲刷上岸的碎石。在这儿，他们可以听见一种连续不断的轰鸣声。后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中发出的声音。洞穴探险者从岩石缝里挤身过去，来到一个巨大的洞里，其大小相当于一个音乐厅。他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，像树干似地向上长着，与洞顶悬挂下来的钟乳石相接。周围是一堆堆石灰石，像彩虹一样闪闪发光。洞里有一种可怕的寂静，唯一的可以听见的声响是高高的圆顶上不间断地滴水的嘀嗒声。13