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Unit8GreenLivingLesson2课后练PartI基础部分一、核心词汇练习阅读本课时内容,翻译相关短语1.谈论_____2.代表_____3.过着满足的生活_____4.(使)某人梦想成真_____5.同意;赞成_____6.吹走_

____7.一线希望_____8.防止某人做某事_____9.和某人分享某物_____10.尊敬_____11.使……结束_____12.调整(情绪)_____13.志愿做某事_____14._____n.创办人,创始者15._____n.

组织者,安排者16._____adj.满意的;满足的17._____vi.发生18._____n.建议,提议19._____adj.微小的;苗条的;薄的20._____n.继续生存,幸存21._____n.比率,率22._____vt.克服(困难);控制(感情)二、

单句语法填空1.Itsuddenly_____(occur)tomethatIhadleftmykeyintheoffice.2._____(found)intheearly20thcentury,thescho

olkeepsoninspiringchildren'sloveofart.3._____(determine)isakindofbasicqualityanditiswhatittakestodojobswell.4.Inordertosavehumanity,agroupofyoungpeo

plecameoutbravelyandfoughthardforeveryone's______(survive).5.Havingmadehisfirstfilmearlierthisyear,heis_____(c

urrent)startinganewone.6.Company_____(profit)aredownonlastyear'sfigures.7.Lastweek,HarvardUniversityissueda______(propose)ent

itled"TurningtheTide",suggestingthatcollegesshouldplacelessemphasisonhigh-stakestests.8.IntheanimationNeZha,wecansee

arebelliouschildwho______(overcome)hardshipandhisdarkdestinyandbecomesahero.PartII提高部分一、阅读理解Scientistssaytheyhavedevelopedasyste

mthatusesmachinelearningtopredictwhenandwherelightningwillstrike.Researchersreportthesystemisabletopre

dictlightningstrikesupto30minutesbeforetheyhappenwithina30-kilometreradius.Lightningisastrongburstofelectricityintheatmosphere.Sinceitcarriesex

tremelypowerfulelectriccharge,itcanbedestructiveanddeadly.Europeanresearchershaveestimatedthatbetween6,000and24,000peoplearekilledbylightningworldwi

deeachyear.Forthisreason,climatescientistshavelongsoughttodevelopmethodsofpredictinglightning.Thesystemtestedintheexpe

rimentsusedacombinationofdatafromweatherstationsandmachinelearningmethods.Theresearchersdevelopedapredictionmodelthatwastrainedtoreco

gniseweatherconditionsthatwerelikelytocauselightning.Themodelwascreatedwiththedatacollectedovera12-yearperiodfrom12Swissweatherstationsincities

andmountainareas.Thedata,relatedtofourmainsurfaceconditions:airpressure,airtemperature,relativehumidityandwindspeed,wasp

lacedintoauniquemachinelearningalgorithm(算法),whichcomparedittotherecordsoflightningstrikes.Researcherss

aythealgorithmwasthenabletolearntheconditionsunderwhichlightningwouldhappen.Theresearcherstestedthesystemseveraltimes.

Theyfoundthatthesystemmadepredictionsthatprovedcorrectalmost80percentofthetime."Itcannowbeusedanywhere,"theSwissFederalIns

tituteofTechnologysaidinastatement.TheresearchersplantokeepdevelopingthetechnologyinpartnershipwithaEuropeanefforttha

taimstocreatealightningprotectionprogramme.TheeffortiscalledtheEuropeanLaserLightningRodproject.Scientistsworkingontheprojectareexp

erimentingwiththelasertechnologythatcouldsomedaycontrollightningactivity,transferringlightningchargefromcloudstot

heground.Theyhopethatsuchtechnologycanonedaybeusedasprotectionagainstlightningstrikes.Possibleusescouldbeatstat

ions,airportsorplaceswherecrowdsofpeoplegather.1.Whywasthesystemdeveloped?A.Toshowthepoweroflightning.B.Tome

etkids'curiosityaboutlightning.C.Toprotectpeoplefromlightning.D.Tokeeptrackofdeathscausedbylightningstrikes.2

.Whatisspecialaboutthesystem?A.Itadoptedadifferentmachinelearningalgorithm.B.Itusedaneffectivemethodofcollectingdata.C.Itwasbasedonanumberofsamp

lesworldwide.D.Itrequiredthelowcostofpredictinglightning.3.Whatwilltheresearchersdonextwiththelasertechnology?A.Generateelectrici

tywithlightning.B.Transferenergyfromlightning.C.Monitorlightningactivity.D.Preventtheoccurrenceoflightning.4.Whatcanbeasuitabletitleforthetex

t?A.ATheoryofEmployingLightningB.AModelofCreatingLightningC.ASystemofControllingLightningD.AMethodofForecastingLightning二、七选五Migratio

n(迁徙),isalongjourneycarriedoutbysomebirdstootherareaswheretheyhopetofindmorefoodandawarmerplacetospendthewinter.Ahundredsorthousandsofmiles

'journeyisactuallydifficultanddangerous.Sowhydobirdsmigrate?__1___However,itallcomesdowntosurvival.MigratingforaMealForallbirds,oneofthemaindriving

forcesbehindmigrationisfoodshortage.Ifallbirdsweretostayinthesamewarmregionsalltheyearround,foodwouldbecomelackingandproducingtheiry

oungwouldbelesssuccessful.Asfoodresourcesarerichinthenortheachspring,millionsofbirdsmigratetherefort

hefoodsupplies.__2___MigratingforFamiliesOverthousandsofyears,birdshaveevolveddifferentmigrationpatterns,timingadestin

ationtoflyaroundtheworldtoproducetheiryoung.Birdstakeadvantageofawidevarietyofsuitableconditionstoraisetheiryoung.__3___MigratingforClimat

eBirdshaveevolveddifferenttypesoffeatherstosurvivedifferentclimates.___4__SomanybirdsleavetheArcticproducinggrounds,

forexample,whentemperaturesbegintofallandtheyneedwarmerhabitats.Similarly,thehottestregionscanbeabadenv

ironmentforraisinglittlechicks,andtheywillchoosecoolerareastolayeggs.MigratingforPredators(捕食性动物)Habit

atsthathaverichfoodresourcesalltheyearroundalsoattractagreaternumberofpredatorsthatcanthreatentheirnests.___5__Itgivestheiryoungabetterchanceofr

eachingmaturity.Manybirdsevenmigratetoparticularhabitatsthatarenearlyinaccessibletopredators.A.Birdsalwaystendtoflytowarmerp

laces.B.Andchangesinthoseclimatescanaffectmigration.C.Thisincreasesthesurvivingchancesoflittlechicks.D.Birdshaveadaptedthemselvestotheirownsurrou

ndings.E.Thereismorethanonereasonfordifferentbirdstomigrate.F.Asthefoodsuppliesdecreaseinfall,theyreturntowarmregions.G.Therefore,birds

migratetodifferenthabitatstoavoidbeingeatenbypredators.三、完形填空IfellinlovewithYosemiteNationalParkthefirsttimeIsawit.M

yparentstookusthereforcamping.Onthewayout,IaskedthemtowaitwhileIranuptoEICapitan,a1rockof3,300feetstraightup.Itouched

thatgiantrockandknew2Iwantedtoclimbit.Thathasbeenmylife'spassion(钟爱)eversince—3therocksandmountainsofYosemite.I'velo

ngmadeYosemitemy4.About15yearsagoIstartedseeingalotof5,likebeercans,emptyboxes,aroundthearea.It'sbeyond

mewhyvisitorsstartedrespectingtheplace6andtreatedsuchabeautifulhome-likeplacethisway.Itried7trash(垃圾)myself,butthejobwastoobig.Iwould8anhouror

twoonthejob,onlytofindtheareatrashedalloveragainweekslater.Finally,IgotsotiredofitthatIdecidedsomethinghadtochange.In2004,togetherwithso

meclimbers,Isetadatefora9.Onthatday,morethan300people10.Overthreedayswecollectedabout6,000poundsoftrash.Itwasamazinghowmuchwewereableto11.Icouldn't

believethe12wemade—theparklookedclean!Eachyearvolunteerscomeforthecleanupfromeverywhere.In2007alone,2,945peoplepicke

dup42,330poundsoftrash.Ioftenhearpeople13abouttheirsurroundings.Ifyouareoneofthem,Iwouldsaytheonlywaytochangethingsisby14rath

erthancomplaining.Weneedtoteachby15.1.A.distantB.hugeC.narrowD.loose2.A.immediatelyB.finallyC.graduall

yD.recently3.A.imaginingB.paintingC.describingD.climbing4.A.gardenB.homeC.labD.palace5.A.materialB.resourcesC.wasteD.goods6.A.moreB.mostC.lessD.le

ast7.A.throwingawayB.pickingupC.breakingdownD.diggingout8.A.killB.saveC.waitD.spend9.A.cleanupB.partyC.picnicD.conce

rt10.A.droppedoutB.showedupC.lookedaroundD.calledback11.A.demandB.receiveC.achieveD.overcome12.A.planB.visitC.contactD.diffe

rence13.A.talkB.complainC.argueD.quarrel14.A.doingB.thinkingC.questioningD.watching15.A.methodB.explanationC.exampleD.research四、书面表达假设

你是某中学的学生李华,请根据以下提示,针对你市遭沙尘暴袭击的情况,向某英语报社写一封信,呼吁大家植树造林,保护环境。内容包括:1.过去家乡树木成林,如今人们毁林种地、建房;2.气候变化,土地沙漠化;3.植树造林,人人有责。注意:1.

词数80左右;2.开头和结尾已给出,不计人总词数。DearEditor,____________________________________________________________________

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_____________________Yours,LiHua答案PartI一、1.talkabout;2.standfor;3.haveacontentedlife;4.makesb'sdreamcometrue;5.agreewith;6.blowaway;7.aslimchance;8.p

reventsbfromdoingsth;9.sharesthwithsb;10.haverespectfor;11.bring...toanend;12.workthrough;13.volunteertodosth14.founder;15.organiser;

16.contented;17.occur;18.proposal;19.slim;20.survival;21.rate;22.overcome二、1.occurred2.Founded3.Determination4.survival5.curr

ently6.profits7.proposal8.overcomesPartII一、1-4.CABD二、1-5.EFCBG三、1-5.BADBC;6-10.CBDAB;11-15.CDBAC四、答案：DearEditor,I'mastudentatamiddleschool.I'mwr

itingtoexpressmygreatconcernfortheenvironmentinmyhometown.Thickforestsandgreengrassusedtobeseen.However,aspeopleherecutdownmanytreestobuildho

usesandgrowmorecrops,theforestswereseriouslydestroyed.Besides,becauseofclimatechangesitrainslittlenow.Asar

esult,sandstormsoccurfrequently.Topreventtheprocessofdesertification,allthepeopleshouldtakegoodcareoftheforestsandplantmoretrees.Lookingforwardtohea

ringfromyou.Yours,Lihua