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1、 谋学网 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,behaviorandmoodproblemsthanstudentswhogetatleastnineh
2、oursanight.Long-termlackofsleepistiedtoheartdisease,overweight,depressionandashortenedlifespaninadults,indicatingtheimportanceofestablishinggoodsleephabitsearlyinlife.Lackofsleepcanbeespeciallydeadlyforteens;caraccidentsaretheleadingcauseofdeathamongteenagers,andsafetyexpertsbelievesleepydrivingisam
3、ajorfactor.Unfortunately,fewteenagersgetthesleeptheyneed.Inasurveyofmiddle-andhigh-schoolstudents,UniversityofColoradoresearchersfoundthat82percentsaidtheywokeuptiredandunrefreshed,andmorethanhalfhadtroubleconcentratingduringthedayatleastonceaweek.Blamemultitaskingforsomeofthis.Manystudentsarejuggli
4、ngafter-schoolactivities,homeworkandpart-timejobs.Evenwhentheymanagetofulfilltheseobligationsbyareasonablehour,television,theInternet,videogames,phonecallsandtextmessagestofriendsoftenkeepthemawakedeepintothenight.Takingsodaandenergydrinkslateinthedayandgoingtolate-nightpartiesonweekendsaddtosleepde
5、bt.Biologyalsoworksagainstteenagerssleep,Thebodysinternalclock,whichcontrolswhenapersonstartstofeeltired,shiftsafterpuberty(青春期),makingithardformostteenstofallasleepbefore11pm.Classusuallybeginsbefore8:15am,withmanyhighschoolsstartingasearlyas7:15am.Togettoschoolontime,mostteenshavetogetupby6:30am,g
6、uaranteeingtheyllbesleep-deprivedduringtheweek.Teensoftensleepmuchlateronweekendstocatchup,makingitevenhardertofallasleeponSundaynightandwakeupMondaymorning.Playingcatch-uponweekendsalsodoesnthelpteensstayrefreshedwhentheyneeditmost:duringtheweekatschool.Sincethe1990s,middleandhighschoolsinmorethant
7、wodozenstateshaveexperimentedwithlaterschoolstarttimes.Theresultshavebeenencouraging:moresleep,increasedattendance,bettergradesandfewerdrivingaccidents.Butmostschoolsstillstartearly,meaningteenshavetheirworkcutoutforthemiftheywanttogetenoughsleep.1. Accordingtothepassage,poorsleepcanbelinkedtoalloft
8、hefollowingEXCEPTA.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：* 谋学网 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.whysleepdeprivationis
9、aseriousconcern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：考生得分：*是否评分：未评分评价描述：*4. Whichofthefol
10、lowingisNOTtoblameforteenagerslackofsleep?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： 谋学网 考生得分：*是否评分：未评分评价描述：*5.Accordingtothepassage,whathavesomeschoolsdonetohelptheirstudentsgetenoughsleep?A.Educatingtheirstudentsabouttheimport
11、anceofsleep.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-30Fandthesunneverrises.Theoceanissurroundedbyfrozenground.The
12、rearefewpeopleortrees,buttopolarbears,theArctic(北极)ishome.Polarbearshavethickfur,bigpawsandotherfeaturesthatmakethemwellpreparedforlifeintheirtoughenvironment.Infact,theyneedtheArcticseaiceforsurvival.Butclimatechangeiscausinglargerandlargerareasofsummerseaicetomelt(融化).Expertssaythatifwarmingpatter
13、nscontinue,theArcticcouldbefreeofsummerseaiceby2050.Thatmaycausetwo-thirdsoftheworlds20,000polarbearstobegonebythentoo.Polarbearscantsurviveforlongonland.Sealsaretheirmainsourceoffood.Theonlyplacewherepolarbearscanhuntsealsisontheice.Althoughthesebearsarestrongswimmers,theyarenomatchforlightningswif
14、tsealsinthewater.Apolarbearhasbrilliantlycleverstrategiestoovercomethisdisadvantage.Inwinterthebearwaitsmotionlessbesideasealsbreathinghole,whichisanarrowtunnelthroughtheice.Oftenmanyhourspassbeforethesealcomesupforairandthebearkillsitwithapowerfulblowofitspaw.Insummer,thepolarbearsthatliveonlandeat
15、verylittleandwaitfortheseaicetoreturn.Withtheseaiceforminglaterintheyearandmeltingearlier,polarbearsdonothaveenoughopportunitytohuntandeat.Lessseaicemakesitharderforthebearstocatchtheseals.Thebearsmustswimlongerdistancesbetweenicepacks(大片浮冰),andtheycantalwaysmakeit.Theiceisalsogettingthinner.Theseconditionscancausepolar-bearcabstobecomeseparatedfromtheirmothers,whoprovidethemwithfood.StevenAmstrupisthechiefscientistofPolarBearsInternational.Thegroupaimstosavethebearsandtheirhome.Themorepeoplewhoseepolarbearsandunderstandtheirdifficultsituation,thebetterthechancewellalterourwarmingpathin
