北京大学17春秋36081003大学英语3第3组课程作业Word下载.docx

北京大学17春秋36081003大学英语3第3组课程作业Word下载.docx

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A.heartdisease

B.caraccidents

C.skinproblems

D.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）canbetreated

B.whatcausessleepdeprivation

C.whoismostatriskforsleepdeprivation

D.whysleepdeprivationisaseriousconcern

3-1-1-2

3.Whatdoestheword“juggling”inParagraph3probablymean?

A.Dealingwithatthesametime.

B.Strikingabalancebetween.

C.Applyingfor.

D.Havingdifficultyin.

3-1-1-3

4.WhichofthefollowingisNOTtoblameforteenagers’lackofsleep?

A.Multitasking.

B.Biologicalclock.

C.Weekendcatch-upsleep.

D.Healthydiet.

3-1-1-4

5.Accordingtothepassage,whathavesomeschoolsdonetohelptheirstudentsgetenoughsleep?

A.Educatingtheirstudentsabouttheimportanceofsleep.

B.Monitoringtheirstudents’late-nightactivities.

C.Delayingschoolstarttimes.

D.Settingstrictrules.

3-1-1-5

2）.

Thetopoftheworldisawonderland.Inwinter,thetemperatureoftenfallsto-30°

Fandthesunneverrises.Theoceanissurroundedbyfrozenground.Therearefewpeopleortrees,buttopolarbears,theArctic（北极）ishome.

Polarbearshavethickfur,bigpawsandotherfeaturesthatmakethemwellpreparedforlifeintheirtoughenvironment.Infact,theyneedtheArcticseaiceforsurvival.Butclimatechangeiscausinglargerandlargerareasofsummerseaicetomelt（融化）.Expertssaythatifwarmingpatternscontinue,theArcticcouldbefreeofsummerseaiceby2050.Thatmaycausetwo-thirdsoftheworld'

s20,000polarbearstobegonebythentoo.

Polarbearscan'

tsurviveforlongonland.Sealsaretheirmainsourceoffood.Theonlyplacewherepolarbearscanhuntsealsisontheice.Althoughthesebearsarestrongswimmers,theyarenomatchforlightningswiftsealsinthewater.Apolarbearhasbrilliantlycleverstrategiestoovercomethisdisadvantage.Inwinterthebearwaitsmotionlessbesideaseal'

sbreathinghole,whichisanarrowtunnelthroughtheice.Oftenmanyhourspassbeforethesealcomesupforairandthebearkillsitwithapowerfulblowofitspaw.Insummer,thepolarbearsthatliveonlandeatverylittleandwaitfortheseaicetoreturn.

Withtheseaiceforminglaterintheyearandmeltingearlier,polarbearsdonothaveenoughopportunitytohuntandeat.Lessseaicemakesitharderforthebearstocatchtheseals.Thebearsmustswimlongerdistancesbetweenicepacks（大片浮冰）,andtheycan'

talwaysmakeit.Theiceisalsogettingthinner.Theseconditionscancausepolar-bearcabstobecomeseparatedfromtheirmothers,whoprovidethemwithfood.

StevenAmstrupisthechiefscientistofPolarBearsInternational.Thegroupaimstosavethebearsandtheirhome."

Themorepeoplewhoseepolarbearsandunderstandtheirdifficultsituation,thebetterthechancewe'

llalterourwarmingpathintimetosavethem,"

hesays.

6.Whichisthebesttitleforthepassage?

A.ClimateChangeintheArctic

B.HowtoProtecttheEnvironment

C.TheArcticIsHometoPolarBears

D.PolarBearsinDanger

3-1-2-1

7.Wheredopolarbearsusuallyhuntseals?

A.Onland.

B.Inopenwater.

C.Inopeningsintheseaice.

D.Atthebottomofthesea.

3-1-2-2

8.Theword"

cubs"

inthefourthparagraphisclosestinmeaningto_____.

A.adults

B.babies

C.hunters

D.enemies

3-1-2-3

9.Accordingtothepassage,whichofthefollowingstatementsisTRUE?

A.Starvingpolarbearsareincreasinglycomingintovillages,wheretheymaybekilledeitherforfoodorsafety.

B.Polarbearscanspendtheirentirelivesonlandiftheseaicemeltscompletely.

C.Two-thirdsoftheworld'

spolarbearsmaydisappearby2050asglobalwarmingcontinues.

D.Thegrowingdistancebetweenicepacksisnotaproblemforpolarbears,becausetheyareexcellentswimmers.

3-1-2-4

10.What'

sthemissionofPolarBearsInternational?

A.Savingenergy.

B.Conductingscientificresearch.

C.Seekinginternationalcooperation.

D.Savingpolarbearsandtheirhome.

3-1-2-5

3）.

For20monthsthewreckedCostaConcordiahasbeenlyingonitssidenearthecoastofGiglio，asmallItalianisland.ButonTuesday,aspartofthelargestsalvage（打捞）operationeverconducted，thelargeshipwasfinallymovedtotheuprightposition.Thenextstepisforthevesseltoberemovedfromtheareaentirely.

TheCostaConcordiaistwicetheweightoftheTitanic.Theshipitselfdidn’tbudge（稍微移动）forthefirstthreehoursoftheoperation,SergioGirottotoldreporters.Heandotherengineersworkedfor19hoursbeforeConcordiawasdeclaredcompletelyupright.

TheCostaConcordiacapsizedonJanuary13,2012，afteritscaptain,FrancescoSchettino，broughttheshiptooclosetotheshore.Theshiphitcoastalrocks,whichcausedseriousdamageandallowedwatertopourin.Mostofthe4,200peopleonboardmadeittolandsafely,butmorethan30peoplewerekilledinthedisaster.Twopeopleremainmissing.TheConcordia’scaptainiscurrentlyontrialforcausingashipwreckandabandoninghisship.

Theoperationtorighttheshipiscalledparbuckling.Whileparbucklingisastandardoperationtorightcapsizedships，ithasneverbeforebeenusedonsuchalargeship.Workershadbeenwaitingforfavorableweatherconditionstoundertaketheoperation.OnMonday，authoritiesgavethefinalgo-ahead.

Theprocesswasexpectedtotakenomorethan12hours.Butproblemswiththelargesystemofsteelchainscauseddelays.Engineersworkedthroughthenightusingcablesandmetalwatertankstorolltheshipontospecialplatforms.

TheConcordiaisexpectedtobepulledawayfromGigliointhespringof2014andturnedintoscrapmetal（废金属）.Theship’sowner,CostaCruises,willpayfortherecovery,whichhasalreadycostmorethan$800million.

11.Whichofthefollowingisthebesttitleforthepassage?

A.ShipSafetyManagement

B.Shipwrecks:

anEnvironmentalThreat

C.TheCostaConcordiaDisaster

D.TheCostaConcordiaSalvage

3-1-3-1

12.Theword“capsized”inthethirdparagraphisclosestinmeaningto______

A.turnedover

B.delayed

C.departed

D.setsail

3-1-3-2

13.Accordingtothepassage,theConcordia’scaptainhasbeenchargedwithcausingthecrashand______.

A.druguse

B.alcoholabuse

C.abandoninghispost

D.settingfire

3-1-3-3

14.Accordingtothepassage，whichofthefollowingstatementsisTRUE?

A.TheCostaConcordiaisthreetimestheweightoftheTitanic.

B.EngineersinItalyhavesuccessfullyrightedthewreckedConcordiaafteranoperationthatlastedaround12hours.

C.Thesalvageoperationwentaheaddespitebadweatherconditions.

D.Asacommonmeansofrightingwreckedships,parbucklinghadneverbeencarriedoutonavesseloftheConcordia’ssize.

3-1-3-4

15.WhatwillhappentotheConcordiaeventually?

A.Itwillbepulledawaytobebrokenupforscrapmetal.

B.Itwillberepairedandputintouseagain.

C.Itwillbeturnedintoamuseumfortourists.

D.Itwillbesunktotheoceanfloor.

3-1-3-5

4）.

Whenwe’relearningaforeignlanguage,makingsenseofwhatwehearisthefirststeptowardfluency.Itsoundsobvious,butuntilrecently,wedidn’tknowmuchabouthowlisteningworks.Newresearchdemonstratesthateffectivelisteninginvolvesmorethansimplyhearingthewordsthatfloatpastourears.Rather,it’sanactiveprocessofreceivinginformationandmakingmeaning.Thiskindofengagedlisteningisaskillthat’sascriticalforlearningarangeofsubjectsatschoolandworkasitisforl