Unit 3 单元检测试题君之K三关高二英语人教版选修7.docx

Unit 3 单元检测试题君之K三关高二英语人教版选修7.docx

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Unit3单元检测试题君之K三关高二英语人教版选修7

Unit3Underthesea

单元检测

Ⅰ.阅读理解

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

A

ThedeepoceanplaysavitalroleinkeepingourfishingandremovingCO2fromtheatmosphere,aswellasbeinghometoalargenumberofcreatures.Butanewstudyrevealsthatfoodsuppliesattheseafloorinthedeepestregionsoftheoceancouldfallbyupto55%by2100,starvingtheanimalsandmicrobes（微生物）thatexistthere,whilechangesinthetemperature,pHandoxygenlevelsarealsopredictedtocauselotsofdamagetofragileecosystems.

Thesituation,theresearchersnote,isworsebecauseofdrillingforoilandgas,dumpingofpollutants,fishingandtheprospectofdeep-seamining."Weneedtowakeupandstartreallyrealisingthatwiththedeepocean,eventhoughwecan’tseeit...we’regoingtobehavingahugeeffectonthelargestenvironmentontheplanet,"saidAndrewSweetman,theco-authoroftheresearch."It’sprettyscary."

Thestudydescribeshowtheteamexploredhowoceansaroundtheworldaresettochangeoverthe21stcentury."Wewantedtolookathowallofthesecombinedstressors—warming,raisedacidification,reducedfoodsuppliestotheseafloor,deoxygenation—wouldworktogethertoaffecttheocean,"saidSweetman.Theresultsrevealthatthefutureofthedeepseaisweak.

By2100oceanconditionswillhavechangedobviously,withso-calledbathyaldepths（watersreachingroughly200metresto3,000metresindepth）inthePacific,AtlanticandArcticOceansincreasingintemperaturebyupto4℃.

Warmingoceansareexpectedtoresultinloweroxygenconcentrations,withlevelspredictedtofallinbathyalseafloorhabitatsbyupto3.7%.Butevensmallchanges,saidSweetman,couldhavealargeimpact,resultingindisruptions（扰乱）tofragileecosystemsthatexistontheedgesofregionswithverylowoxygen.

AdrianGlover,anexpertindeepoceansfromtheNaturalHistoryMuseuminLondonwhowasnotinvolvedintheresearch,welcomedthestudy."Itmustbestressful,however,thatactualdataonchangesindeep-seaecosystemsareextremelyscarce,"hesaid."Whilethestudyoffersclearevidencethatclimatechangewillaffecttemperature,acidity,andotherfactors,itisstillspeculation（推测）astowhattheinfluencewouldbeonbiodiversity,forexample,"saidGlover.

1.WhatcanwelearnfromwhatAndrewSweetmansaid?

A.Oceanconditionswillgetimproved.

B.Thedeepoceanaffectshumanlifehugely.

C.Humansaretoblameforthepresentecosystems.

D.Theimportanceofthedeepoceanisn’trealised.

2.WhatisAdrianGlover’sattitudetothestudy?

A.Disapproving.

B.Objective.

C.Useless.

D.Perfect.

3.What’sthemainideaofthispassage?

A.Thedeepoceanisimportanttohumans.

B.Foodsuppliesatthedeepseafloorarelacking.

C.Thedeepoceanwillbecomewarmerandwarmer.

D.Warmingandfoodshortagegivedeep-sealifeadarkfuture.

B

Morethanonein10oftheUK’swildlifespeciesisthreatenedwithextinction（灭绝）andthenumberofthenation’smostendangeredcreatureshasfallenbytwo-thirdssince1970.Theabundanceofallwildlifehasalsofallen,withoneinsixanimals,birds,fishandplantshavingbeenlost,aStateofNaturereportfound.

Togetherwithhistoricaldeforestation（毁林）andindustrialization,thesetrendshavelefttheUK"amongthemostnature-exhaustedcountriesintheworld",withmostofthecountryhavinggonepastthestageatwhich"ecosystemsmaynolongerreliablymeetsociety’sneeds".

Thecomprehensivescientificreport,gatheredbymorethan50conservationorganizations,spellsoutthedestructiveimpactofmodernfarmingandclimatechangeonhabitatsfromfarmlandandhillstoriversandthecoast."Thefallinwildlifewasn’tjustallbackin70sand80s,it’sstillhappeningnow,"saidMarkEaton,atRSPBandtheleadauthorofthereport."We’regettingmoreefficientinourfarming.Inawayit’ssomethingtobecelebrated—howgoodourfarmingscienceandtechnologyis,butitdoessqueezenatureout."

Eatonsaidthereweregoodexamplesofwildlifeandhabitatrecovery,butsuchprojectsweretoofewtoturnthetide,withpublicfundingfornature’sdiversityhavingfallenby32%from2008to2015."Theabilitytodoitiswithinourgrasp;it’sjustaboutresourcesandthewillingness.Thenaturalworldisinserioustroubleanditneedsourhelpasneverbefore.Wecontinuetolosethepreciouswildlifethatenrichesourlivesandisessentialtothehealthandwell-beingofthosewholiveintheUK.ButtheStateofNature2016reportgivesuscauseforhopetoo.Landscapesarebeingrestored,specialplacesdefended,strugglingspeciesbeingsavedandbroughtback.Butweneedtobuildsignificantlyonthisprogressifwe’retoprovideabrightfuturefornatureandforpeople."

Overall,thenewreportfoundthat56%ofspeciesdeclinedbetween1970and2013,and53%between2002and2013.Whiletherestofthespecieswereincreasing,we’reseeingalotofdisorder,somespeciesgoingupreallyfastandsomegoingdownequallyfast.Itdoesn’tlooklikeahealthy,naturalsituation.Ifthatcarrieson,youendupwithjust50%left.

4.HowisParagraph1mainlydeveloped?

A.Bylistingfigures.B.Bygivingexamples.

C.Byanalyzingcauses.D.Bymakingcomparisons.

5.Whatdoestheunderlinedpartmean?

A.Modernfarmingmustreturntonature.

B.Modernfarmingmakesfulluseofnature.

C.Modernfarmingcanenrichnature’sdiversity.

D.Modernfarmingmaydisturbnature’sbalance.

6.Whatdoesthelastbutoneparagraphmainlysuggest?

A.Endangeredwildlifemustbewellprotected.

B.Peopleshouldunitetofightforabrightfuture.

C.Thesituationisstillseveredespitesomeprogress.

D.Moremoneyisneededforenvironmentalprotection.

7.Whatistheauthor’spurposeinwritingthepassage?

A.TotelltheBritishhowtosavewildlifespecies.

B.Toexplainwhymorewildlifespeciesfaceextinction.

C.Tostresstheimportanceofprotectingwildlifespecies.

D.TointroducethecurrentsituationofBritain’swildlifespecies.

Ⅱ.完形填空

阅读下面的短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。

Amarinebiologistplacedasharkintoalargeholdingtankandthenreleasedseveralsmallbaitfishintothetank.Theresultmetyour 　1　,thesharkquicklyswamacrossthetank,attackedandatethesmallerfish.

Thebiologistthen 　2　astrongpieceoffiberglassintothetank,creatingtwo 　3　parts.Shethenputthesharkononesideofthe 　4　fiberglassandanewsetofbaitfishontheother. 　5　,thesharkquicklyattacked.Butthistime,theshark 　6　becauseitknockedhardagainstthefiberglass 　7　.Determined,thesharkkept 　8　thisbehavioreveryfewminutes,but 　9　.Meanwhile,thebaitfishswamaround 　10　inthesecondpart.Eventually,theshark 　11　hopeofhunting.Thisexperimentwascarriedoutseveraltimes.Eachtime,thesharkgotless 　12　andmadefewerattemptstoattackthefish,untilit 　13　hittingthefiberglassandsimplystoppedattacking.Thebiologistthen 　14　thefiberglass,butthesharkdidn’tattack.Thesharkwastrainedtobelievea 　15　existedbetweenitandthebaitfish, 　16　thebaitfishcouldswimwherevertheywished,freefromharm.

Manyofus,afterexperiencingsetbacksandfailures, 　17　giveupandstoptrying.Likethesharkinthestory,webelievethat 　18　wewereunsuccessfulinthepast,wewillalwaysbeunsuccessful. 　19　,evenwhenno"real"obstacleexistsbetweenwhereweareandwherewewanttogo,we 　20　seeobstaclesinourheads.

1.A.demandsB.expectationsC.schedulesD.requirements

2.A.changedB.addedC.insertedD.crashed

3.A.separateB.oppositeC.connectedD.relevant

4.A.delicateB.hiddenC.transparentD.flexible

5.A.YetB.MeanwhileC.InsteadD.Again

6.A.bouncedB.pausedC.withdrewD.leapt

7.A.trapperB.catcherC.testerD.divider

8.A.accomplishingB.repeatingC.copyingD.strengthening

9.A.inorderB.invainC.insecretD.inpain

10.A.unaccustomedB.unchallengedC.unharmedD.unnoticed

11.A.divorcedB.declinedC.raisedD.abandoned

12.A.blindB.aggressiveC.alertD.arbitrary

13.A.gotoccupiedwithB.gotinvolvedin

C.gottiredofD.gotusedto

14.A.readjustedB.restoredC.replacedD.removed

15.A.barrierB.distanceC.gapD.distinction

16.A.soB.butC.asD.for

17.A.readilyB.intentionallyC.emotionallyD.physically

18.A.becauseB.thoughC.unlessD.while

19.A.AboveallB.InotherwordsC.AsaresultD.Inconclusion

20.A.abruptlyB.constantlyC.eventuallyD.occasionally

Ⅲ.语法填空

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Nowadays,moreandmorepost-90sgenerationwillentertheworkforce.Theyplacemoreemphasis 　1　lookingforajobthattheyenjoymorethanotherfactors.Manyofthemhopetoestablisha 　2　（relax）workingrelationship.Morethanhalfofthemprefertheeasy-goingandgood-tempered 　3　（employ）.Surprisingly10percentofthemwishtobefriendswiththeirbosses.ExpertssaythattheyarethegenerationoftheInternetera.Theyhaveastrong 　4　（aware）of"self"andhowtheyrelatetotheoutsideworld.GuoYun,22,isadigitalmediamajorfromBeijingUniversityofPostsandTelecommunications.Shesaysthatshewouldnotmind 　5　（work）longhours,butwouldpreferherboss 　6　（explain）whyshehasto,suchastheurgencyofthetask."Ifeel 　7　（great）motivatedinthisway,"sheexplains.Theytendtocareagreatdealabouttheteamorthemanagementculture. 　8　arealsomoreoutspokenabouttheirneeds,andtheyareli