1、北京大学17春秋36081003大学英语3第3组课程作业一、阅读理解(共40题,每题1分,共40分)1). Astheschoolyearkicksoff,parentsareonceagainstragglingtocajole(哄编)and,ifneedbe,dragtheirexhaustedteensoutofbed.Thatimagemaymakeyoulaugh,butlackofsleepisnojoke.Teenagerswhodontgetenoughresthavemorelearning,health,behaviorandmoodproblemsthanstudents
2、whogetatleastninehoursanight.Long-termlackofsleepistiedtoheartdisease,overweight,depressionandashortenedlifespaninadults,indicatingtheimportanceofestablishinggoodsleephabitsearlyinlife.Lackofsleepcanbeespeciallydeadlyforteens;caraccidentsaretheleadingcauseofdeathamongteenagers,andsafetyexpertsbeliev
3、esleepydrivingisamajorfactor.Unfortunately,fewteenagersgetthesleeptheyneed.Inasurveyofmiddle-andhigh-schoolstudents,UniversityofColoradoresearchersfoundthat82percentsaidtheywokeuptiredandunrefreshed,andmorethanhalfhadtroubleconcentratingduringthedayatleastonceaweek.Blamemultitaskingforsomeofthis.Man
4、ystudentsarejugglingafter-schoolactivities,homeworkandpart-timejobs.Evenwhentheymanagetofulfilltheseobligationsbyareasonablehour,television,theInternet,videogames,phonecallsandtextmessagestofriendsoftenkeepthemawakedeepintothenight.Takingsodaandenergydrinkslateinthedayandgoingtolate-nightpartiesonwe
5、ekendsaddtosleepdebt.Biologyalsoworksagainstteenagerssleep,Thebodysinternalclock,whichcontrolswhenapersonstartstofeeltired,shiftsafterpuberty(青春期),makingithardformostteenstofallasleepbefore11pm.Classusuallybeginsbefore8:15am,withmanyhighschoolsstartingasearlyas7:15am.Togettoschoolontime,mostteenshav
6、etogetupby6:30am,guaranteeingtheyllbesleep-deprivedduringtheweek.Teensoftensleepmuchlateronweekendstocatchup,makingitevenhardertofallasleeponSundaynightandwakeupMondaymorning.Playingcatch-uponweekendsalsodoesnthelpteensstayrefreshedwhentheyneeditmost:duringtheweekatschool.Sincethe1990s,middleandhigh
7、schoolsinmorethantwodozenstateshaveexperimentedwithlaterschoolstarttimes.Theresultshavebeenencouraging:moresleep,increasedattendance,bettergradesandfewerdrivingaccidents.Butmostschoolsstillstartearly,meaningteenshavetheirworkcutoutforthemiftheywanttogetenoughsleep.1. Accordingtothepassage,poorsleepc
8、anbelinkedtoallofthefollowingEXCEPTA.heartdiseaseB.caraccidentsC.skinproblemsD.poorconcentration 试题编号:3-1-1-1 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*2. ThemainideaofParagraph3is_A.howsleepdeprivation(缺乏)canbetreatedB.whatcausessleepdeprivationC.whoismostatriskforsleepdeprivationD
9、.whysleepdeprivationisaseriousconcern 试题编号:3-1-1-2 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*3. Whatdoestheword“juggling”inParagraph3probablymean?A.Dealingwithatthesametime.B.Strikingabalancebetween.C.Applyingfor.D.Havingdifficultyin. 试题编号:3-1-1-3 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案
10、: 考生得分:* 是否评分:未评分 评价描述:*4. WhichofthefollowingisNOTtoblameforteenagerslackofsleep?A.Multitasking.B.Biologicalclock.C.Weekendcatch-upsleep.D.Healthydiet. 试题编号:3-1-1-4 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*5. Accordingtothepassage,whathavesomeschoolsdonetohelptheirstudentsgetenoug
11、hsleep?A.Educatingtheirstudentsabouttheimportanceofsleep.B.Monitoringtheirstudentslate-nightactivities.C.Delayingschoolstarttimes.D.Settingstrictrules. 试题编号:3-1-1-5 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*2). Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfallsto-30Fand
12、thesunneverrises.Theoceanissurroundedbyfrozenground.Therearefewpeopleortrees,buttopolarbears,theArctic(北极)ishome.Polarbearshavethickfur,bigpawsandotherfeaturesthatmakethemwellpreparedforlifeintheirtoughenvironment.Infact,theyneedtheArcticseaiceforsurvival.Butclimatechangeiscausinglargerandlargerarea
13、sofsummerseaicetomelt(融化).Expertssaythatifwarmingpatternscontinue,theArcticcouldbefreeofsummerseaiceby2050.Thatmaycausetwo-thirdsoftheworlds20,000polarbearstobegonebythentoo.Polarbearscantsurviveforlongonland.Sealsaretheirmainsourceoffood.Theonlyplacewherepolarbearscanhuntsealsisontheice.Althoughthe
14、sebearsarestrongswimmers,theyarenomatchforlightningswiftsealsinthewater.Apolarbearhasbrilliantlycleverstrategiestoovercomethisdisadvantage.Inwinterthebearwaitsmotionlessbesideasealsbreathinghole,whichisanarrowtunnelthroughtheice.Oftenmanyhourspassbeforethesealcomesupforairandthebearkillsitwithapower
15、fulblowofitspaw.Insummer,thepolarbearsthatliveonlandeatverylittleandwaitfortheseaicetoreturn.Withtheseaiceforminglaterintheyearandmeltingearlier,polarbearsdonothaveenoughopportunitytohuntandeat.Lessseaicemakesitharderforthebearstocatchtheseals.Thebearsmustswimlongerdistancesbetweenicepacks(大片浮冰),and
16、theycantalwaysmakeit.Theiceisalsogettingthinner.Theseconditionscancausepolar-bearcabstobecomeseparatedfromtheirmothers,whoprovidethemwithfood.StevenAmstrupisthechiefscientistofPolarBearsInternational.Thegroupaimstosavethebearsandtheirhome.Themorepeoplewhoseepolarbearsandunderstandtheirdifficultsitua
17、tion,thebetterthechancewellalterourwarmingpathintimetosavethem,hesays.6. Whichisthebesttitleforthepassage?A.ClimateChangeintheArcticB.HowtoProtecttheEnvironmentC.TheArcticIsHometoPolarBearsD.PolarBearsinDanger 试题编号:3-1-2-1 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*7. Wheredopolarbea
18、rsusuallyhuntseals?A.Onland.B.Inopenwater.C.Inopeningsintheseaice.D.Atthebottomofthesea. 试题编号:3-1-2-2 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*8. Thewordcubsinthefourthparagraphisclosestinmeaningto_.A.adultsB.babiesC.huntersD.enemies 试题编号:3-1-2-3 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案
19、: 考生得分:* 是否评分:未评分 评价描述:*9. Accordingtothepassage,whichofthefollowingstatementsisTRUE?A.Starvingpolarbearsareincreasinglycomingintovillages,wheretheymaybekilledeitherforfoodorsafety.B.Polarbearscanspendtheirentirelivesonlandiftheseaicemeltscompletely.C.Two-thirdsoftheworldspolarbearsmaydisappearby205
20、0asglobalwarmingcontinues.D.Thegrowingdistancebetweenicepacksisnotaproblemforpolarbears,becausetheyareexcellentswimmers. 试题编号:3-1-2-4 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*10. WhatsthemissionofPolarBearsInternational?A.Savingenergy.B.Conductingscientificresearch.C.Seekinginterna
21、tionalcooperation.D.Savingpolarbearsandtheirhome. 试题编号:3-1-2-5 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*3). For20monthsthewreckedCostaConcordiahasbeenlyingonitssidenearthecoastofGiglio,asmallItalianisland.ButonTuesday,aspartofthelargestsalvage(打捞)operationeverconducted,thelargeship
22、wasfinallymovedtotheuprightposition.Thenextstepisforthevesseltoberemovedfromtheareaentirely.TheCostaConcordiaistwicetheweightoftheTitanic.Theshipitselfdidntbudge(稍微移动)forthefirstthreehoursoftheoperation,SergioGirottotoldreporters.Heandotherengineersworkedfor19hoursbeforeConcordiawasdeclaredcompletel
23、yupright.TheCostaConcordiacapsizedonJanuary13,2012,afteritscaptain,FrancescoSchettino,broughttheshiptooclosetotheshore.Theshiphitcoastalrocks,whichcausedseriousdamageandallowedwatertopourin.Mostofthe4,200peopleonboardmadeittolandsafely,butmorethan30peoplewerekilledinthedisaster.Twopeopleremainmissin
24、g.TheConcordiascaptainiscurrentlyontrialforcausingashipwreckandabandoninghisship.Theoperationtorighttheshipiscalledparbuckling.Whileparbucklingisastandardoperationtorightcapsizedships,ithasneverbeforebeenusedonsuchalargeship.Workershadbeenwaitingforfavorableweatherconditionstoundertaketheoperation.O
25、nMonday,authoritiesgavethefinalgo-ahead.Theprocesswasexpectedtotakenomorethan12hours.Butproblemswiththelargesystemofsteelchainscauseddelays.Engineersworkedthroughthenightusingcablesandmetalwatertankstorolltheshipontospecialplatforms.TheConcordiaisexpectedtobepulledawayfromGigliointhespringof2014andt
26、urnedintoscrapmetal(废金属).Theshipsowner,CostaCruises,willpayfortherecovery,whichhasalreadycostmorethan$800million.11. Whichofthefollowingisthebesttitleforthepassage?A.ShipSafetyManagementB.Shipwrecks:anEnvironmentalThreatC.TheCostaConcordiaDisasterD.TheCostaConcordiaSalvage 试题编号:3-1-3-1 试题类型:单选题 标准答案
27、:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*12. Theword“capsized”inthethirdparagraphisclosestinmeaningto_A.turnedoverB.delayedC.departedD.setsail 试题编号:3-1-3-2 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*13. Accordingtothepassage,theConcordiascaptainhasbeenchargedwithcausingthecrasha
28、nd_.A.druguseB.alcoholabuseC.abandoninghispostD.settingfire 试题编号:3-1-3-3 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*14. Accordingtothepassage,whichofthefollowingstatementsisTRUE?A.TheCostaConcordiaisthreetimestheweightoftheTitanic.B.EngineersinItalyhavesuccessfullyrightedthewreckedCo
29、ncordiaafteranoperationthatlastedaround12hours.C.Thesalvageoperationwentaheaddespitebadweatherconditions.D.Asacommonmeansofrightingwreckedships,parbucklinghadneverbeencarriedoutonavesseloftheConcordiassize. 试题编号:3-1-3-4 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*15. Whatwillhappentot
30、heConcordiaeventually?A.Itwillbepulledawaytobebrokenupforscrapmetal.B.Itwillberepairedandputintouseagain.C.Itwillbeturnedintoamuseumfortourists.D.Itwillbesunktotheoceanfloor. 试题编号:3-1-3-5 试题类型:单选题 标准答案:* 试题难度:一般 试题解析:* 考生答案: 考生得分:* 是否评分:未评分 评价描述:*4). Whenwerelearningaforeignlanguage,makingsenseofwha
31、twehearisthefirststeptowardfluency.Itsoundsobvious,butuntilrecently,wedidntknowmuchabouthowlisteningworks.Newresearchdemonstratesthateffectivelisteninginvolvesmorethansimplyhearingthewordsthatfloatpastourears.Rather,itsanactiveprocessofreceivinginformationandmakingmeaning.Thiskindofengagedlisteningisaskillthatsascriticalforlearningarangeofsubjectsatschoolandworkasitisforl
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