【文档说明】Unit5 Humans and Nature Lesson 3 课后练.doc，共(7)页，38.500 KB，由小赞的店铺上传

转载请保留链接：https://www.doc5u.com/view-c2651c6506f091f75d489b17f7e079c3.html

以下为本文档部分文字说明：

Unit5HumansandNatureLesson3课后练PartI基础部分一、基础词汇集训1._________n.探险者;勘察者2._________n.预备，准备3._________n.滑雪板;.滑雪4._________n.队长;组长5._

________adj.极地的，地极的6._________n.基地，大本营;基础过以……为基地7._________adv.焦虑地;不安地8._________停止运转，出故障9._________n.抱负，雄心;追求，夙愿10._________n.探险;探索11.___

______adj.高兴的，兴高采烈的12._________n.证明;证实13._________adj.久远的;遏远的14._________n.坦诚，诚实，正直二、单句语法填空1.Theelephanthadheardthe__________(distance

)alarmcallsofanimalsandhermoodsuddenlychanged.2.________(anxious),shetookthedressoutofthepackageandtriediton,only

tofinditdidn'tfit.3.Whilehighschooldoesnotgenerallyencouragestudentstoexplorenewaspectsoflife,collegesetsthestageforthat__

______(explore).4.________(base)onarealstory,thefilmwasverymoving.5.Itwaswith________(sincere)andfaithfulnessthatwecreatedaha

rmonious(和谐的)atmosphere.6.Drinkingwaterreallycankeepyou________(cheer).7.Thescientistsuseddetailedgeneticanalysis_____(prove)t

helinksbetweenthem.8.Youcannotimaginewhatgreatdifficultytheyhad_____(solve)theproblem.9.I'man_____(ambition)writer,butwhenIstartedgoingthroughc

hemo(化疗),eventhoughIamapositiveperson,Ilostthedrivetowrite.10.Thenewsreportssaypeacetalkshavebroken_____wi

thnoagreementreached.三、选词填空shelterfrom;havenegativeeffectson;haveatotalareaof;runoutof;holdonto;breakdown;b

ebasedon;inpreparationfor;behometo1.We_________theraininadoorway.2.Inspiration,passion,andmotivationaredifficultthingsto_________.3.Youneedtoknowwh

attoabandonifyouare_________time.4.Japan_________tenpercentoftheworld'sactivevolcanoes.5.Shanghai___

______about6,340squarekilometers.6.Thissong_________anoldfolktune.7.Thewashingmachineseemstohave_________again.8._________lectures,Iurgeyoutodosome

reading.9.Competitionbetweenfriendsalways_________friendship.PartII提高部分一、阅读理解Inthepast50years,theamountofwaterintheopenoceanwithzerooxygenhasgoneu

pmorethanfourfold.Incoastalwaterbodies,includingrivermouthsandseas,low-oxygensiteshaveincreasedmorethantenfoldsince1950.Scientistsexpe

ctoxygentocontinuedroppingevenoutsidethesezonesastheEarthwarms."Oxygenisfundamentaltolifeintheocean,"saidDen

iseBreitburg,amarineecologistattheSmithsonianEnvironmentalResearchCenter."Thedeclineinoceanoxygenranksamongthemostseriouseffectsofhumanactivities

ontheEarth'senvironment.Actually,it'sagreatlosstoallthesupportservicesthatrelyonrecreationandtourism,includinghotels,resta

urants,taxisandeverythingelse.Thereverberations(影响)ofunhealthyecosystemsintheoceancanbeextensive."Inare

astraditionallycalled"deadzones",likethoseinChesapeakeBayandtheGulfofMexico,oxygenplummets(暴跌)tosolowlevelsthatmanyanimalsdie.Asfishavoidthesezones

,theirhabitatsbecomesmallerandthey'reeasiertobeattackedorcaught.Buttheproblemgoesfarbeyond"deadzones".Evensmalleroxygen

declinecanpreventgrowthinanimals,hinderreproductionandleadtodiseaseorevendeath.Italsocancausethereleaseofdangerouschemicalssuchas

nitrousoxide,agreenhousegasupto300timesmorepowerfulthancarbondioxide.Whilesomeanimalscanboomin"deadzones",overallbio

diversityfalls.Climatechangeisthekeycriminalintheopenocean.Warmingsurfacewatersmakeitharderforoxygentoreachtheinsideoftheocean.

Furthermore,astheoceanasawholegetswarmer,itholdslessoxygen.Incoastalwaters,toomuchnutrientpollutionfromlandcreatesalgalblooms,whichrunou

tofoxygenastheydieandbreakdown.People'slivelihoodsarealsoontheline,thescientistsreported,especiallyindevelopingnations

.Smallerfisheries(渔场)maybeunabletorelocatewhenlowoxygendestroystheirharvestsorforcesfishtomoveelsewhere.Sowehumanshavetocarryonawarnowa

ndwinthewar.1.Whatdoesthefirstparagraphmainlytalkabout?A.Theoceanhasbeenlosingitsoxygen.B.Theamountofseawaterisincreasing.C.Thecoa

stalwaterbodiesaredangerous.D.TheEarthbecomeswarmerandwarmer.2.WhatcanweinferfromDeniseBreitburg'swords?A.Differentocea

nshavedifferentlevelsofoxygen.B.Thedeclineinoceanoxygenhasgreatinfluences.C.Thefutureoftourismreliesonthelevelso

foceanoxygen.D.Thedecreaseinoceanoxygenisthemostseriousenvironmentproblem.3.Howdoesthe"deadzone"affectseaanimals?A.Itoffersmorefood.B

.Itformsdangerousgas.C.Itreducestheirlivingareas.D.Itproducesmorecarbondioxide.4.Howcanwewinthewaraccordingtothetex

t?A.Byclosingsmallerfisheries.B.Bycontrollinghumans'badactivities.C.Byimprovingpeople'slivingstandards.D.

Bystoppingnutrientsenteringtheocean.二、七选五UrbanWildlifeCitiesarediverseecosystems.Inadditiontovisitor

s,alargenumberofspeciesshareoururbanareas.Asourcitiesspread,weneedtothinkaboutwhatitislikeforotherspeciestohavehuma

nneighbors.Citiesarebuiltforhumans.___1_____Forexample,mostcityparksarekeptneatandtidysothathumanswi

llfindthembeautiful.Butwhenwecutgrassorplants,wedestroynaturalhabitats,whichleadstotheimbalanceofecology.____2____Whe

nabridgeinAustin,Texaswasrepaired,engineersaddedsmallgapsrunningalongthelengthofitsbottom.Thismadeagoodhomeforbats,andsoon

thebridgewashometothousandsofbats.____3____Now,theyhavecometovaluetheirwingedneighbors.Thebatsbecomeatouristattraction,andtheyeatlotsofbugseverynight

.Therearealsostructuresbuiltwiththeaimofbringingwildlifeintothecity.TheBeijingOlympicForestParkisagoo

dexample.Theparkusednativeplants,andcreatedopenandnaturalspacesforwildlife.TheresultisazoneinBeijingwithover160speciesofbirds.Inmanyways,theparkis

theoppositeofazoo.____4____Ifwelearntoshareourspace,wecanbecomebetterneighborsofthewildlifearoundus.____5____Ourownfuturewil

lbeendangeredtoo.A.Theyarebuilttoprotectbirds.B.Ouractionssometimeshelpotherspecies.C.Ifwedonot,morespecieswillbe

comeextinct.D.Theydonotalwaysprovidesuitablehabitatsforwildlife.E.Insteadofbeingkeptincages,wildlifecanmovemorefreely.F.Atfirst,peoplewe

reafraidofthebatsandtriedtogetridofthem.G.Theywouldsitonitandtheirdroppingswouldfallintothewater.三、完形填空I'manoceanlover.LivinginMontreal,faraw

ayfromtheocean,makesitevenmoreadreamlandforme.AndI1tovisittheoceanatleastonceayearandI'vebeendoingitforatleasttwenty2

.WhenIwasyounger,Iwould3shellsandrocksandbringthembackhomeandendeduphavingtonsofthemonmyshelves,floors,desks,etc.ButasI4theoceanmoreandmore,I

startedpickingupthe5leftbycarelesspeople,pickinguplessandless6treasure.Iwasbeginningtoquestionmyhabitsandoneday,inCalifornia,Ij

usthadthisidea.Irealisedthatastoneyoufindintheoceanhasa(n)7colourthatmakesyoupickitupbutthen,whenit8,youwon'tfinditaslovelyanymore,sowhypicki

tupinthefirstplace?Anyway,Ijustrealisedthenthatnaturalthingsareniceintheirnatural9andthatifeverybodypickedupevery

shellfromtheocean,and10thewastesoutthere,thebeachwouldbecomesomethingnotsonicevery11.SoIdecidedthatday

,whenIwasprobably28or29,thatIwouldjust"borrow"thingsfromtheocean,andbringthembackafterawhile,sincethat12ofshellsdoessomuchgoodfor

me.I13thequantityandkeepittothesmallestamount.Soifyou'veseenastrangeladypickinguprubbishand14shellsbackintotheocean,fromaboxorabag,onabeautifu

lsunnyday,itwas15me.1.A.agreeB.tryC.refuseD.fail2.A.weeksB.hoursC.yearsD.months3.A.pickupB.giveoutC.hideawayD.putaside4.A.v

isitedB.protectedC.cleanedD.calmed5.A.booksB.phonesC.rocksD.wastes6.A.specialB.seaC.smoothD.land7.A.t

erribleB.wonderfulC.ordinaryD.clean8.A.breaksB.raisesC.driesD.fixes9.A.shapesB.methodsC.disastersD.places10.A.collectedB.

liftedC.leftD.burnt11.A.slowlyB.deeplyC.quicklyD.correctly12.A.typeB.differenceC.qualityD.beauty13.A

.increaseB.hateC.controlD.fight14.A.cuttingB.throwingC.pushingD.dividing15.A.certainlyB.generallyC.reallyD.probably四、语法填空On1June,191

0,CaptainScottbeganhisjourney____1____Antarctic.Atthesametime,theNorwegianexplorerRoaldAmundsenwasalsogoingsouth.Duringt

hepolarsummer,bothteamsorganisedfoodbasesin____2____(prepare)fortheirjourneys.AmundsenreachedtheAntarcticfirs

t.Thenhepreparedforthereturnjourney.Scott____3____(final)arrivedatthePole.They____4____(shock)whentheysawthe

Norwegianflag.Scottwrotesadlyinhisdiary:"Well,wehavenowlostthegoalofourambitionandmustface800milesofhardpushing—andgoodbyet

omostofour____5____(dream)."Thereturnjourneywasoneoftheworstinthehistoryofexploration.Theweatherconditionswer

eterrible.Scottrealisedtheir____6____(hope)situation:"Weareverycheerful,____7____whateachmanfeelsinh

isheartIcanonlyguess..."Thenaterriblestormstarted.Scottspentsomeofhislasthours____8____(write).Hewrotealetterfullofsadnesstohiswife

.ThenewsofScott'sdeathshocked___9_____world.HehadfailedtowintheracetothePole,buttheextraordinarycourage___10_____(show)byCaptainScottandhism

enmadethemheroes.五、书面表达假定你是李华,你校英文报社将举办主题为“自然灾害”的征文活动。请你给美国朋友BruceAlpert写一封邮件,邀请他参加。内容包括:1.说明缘由;2.请他介绍美国的自然灾害并谈谈其影响及应对措施等;3.告知征文截稿日期。注意:1.词数80左右;2

.可以适当增加细节,以使行文连贯。_________________________________________________________________________________________

______________________________________________________________________________________________________________________________

______________________答案PartI一、1.explorer2.preparation3.ski4.captain5.polar6.base7.anxiously8.breakdown9.ambition10.exp

loration11.cheerful12.prove13.distant14.honesty二、1.distant2.Anxiously3.exploration4.Based5.sincerity6.cheerful7.toprove8.solving9.ambiti

ous10.down三、1.shelteredfrom2.holdonto3.runningoutof4.ishometo5.hasatotalareaof6.isbasedon7.brokendown8.I

npreparationfor9.hasnegativeeffectsonPartII一、1--4.ABCB二、1--5.DBFEC三、1--5.BCAAD6--10.BBCDC11--15.CDCBD四、1.to2.prepa

ration3.finally4.wereshocked5.dreams6.hopeless7.but8.writing9.the10.shown五、答案：DearBruceAlpert,OurschoolEnglishne

wspaperwillholdanessaycompetitionthemed"NaturalDisasters".I'dliketoinviteyoutoattendit.Asweknow,manynaturaldisaste

rsoccureveryyearinAmerica,causinggreatdamage.Youcanintroducethemainnaturaldisasters,suchastornadoesandhurricanesandtellsomecommonkn

owledgeaboutthemandtheeffectsofthem.Therelativemeasuresyoutakemaybenefitus,aswealsofacemanynaturaldisasters.Thedeadlineisne

xtFriday.I'mlookingforwardtoyourarticle.Yours,LiHua