stepbystep3000第二册Unit7unit12原文及答案.docx
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stepbystep3000第二册Unit7unit12原文及答案.docx
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stepbystep3000第二册Unit7unit12原文及答案
leaveourschool,”histeachersaid.Louis'smusicwasjazzandhelovedit.Herememberedallthemusicheheard.Hedidn’tlearntoreadmusicuntilhewasaman.Whenheleftschool,heplayedinmanybands.Helovedhisworkandpeoplelovedhim.Theyknewthathehadawonderfultalent.Louisplayedinlittletownsandinbigcities.
Satchmo’shornhadasmanysoundsastenhorns—sometimesslowandsweet?
Sometimesfastandhot,highandlow.Hismusicwasalwaysstrongandexciting.“Hedoesmakewonderfulmusic,”saidthemanwholistenedhappily.“Yes,”saidanotherman,“hemakesthathornspeak.”Thenthemusicendedandthecrowdcheered.LouisArmstrongspokewithtearsinhiseyes,“Ithink,myfriends,youcanlistentoasmuchjazzasIcanplay.Ithoughtjazzwasmymusic,butnowIunderstanditisours.Isn’titbeautifulhowmusicbringsustogether!
”
Questions:
1.WherewasLouisfrom?
2.Whatkindoffamilywasheborninto?
3.WhoknewLouis?
4.Whatmusicdidheplay?
5.Whendidhelearntoreadmusic?
6.WhatisLouisArmstrongmostfamousfor?
7.WhatbringsLouisandotherpeopletogether?
8.Whatdoesthestory“Themanwiththehorn”mainlytellus?
PartIVBankHolidayDIY
1.(F)2.(F)3.(T)4.(T)5.(T)6.(F)
Wheneverthere’saRankHolidayweekendinBritain,acertainkindofshopalwaysgetsverybusy,andit’snotwhatyoumightthink—clothesshopsormusicshops.TheBritishflocktoDIYstoresandgardencentresandhugenumbersofpeoplespendtheirdaysoffdoinghomeimprovementsinsteadofrelaxing!
DoingDIYisverypopularinBritain,andtherearelotsofTVprogrammeswhichshowpeoplehowtoimprovetheirhomes.
Somepeoplesticktosimpledecorating—puttingupwall-paperandpaintingwalls.ButtherearcallsortsofDIYprojectsthatsomepeopledecidetotakeon,fromlayingnewflooring,toplumbing,suchasputtinginanewshower,ortilingwalls.
Unfortunately,somepeoplebiteoilmorethantheycanchew,andstartdoingajobwhichendsinDIYdisaster.Forexample,it’srecommendedthatanythingelectricalshouldbedonebyaqualifiedelectrician,butmanypeopleignorethiswarningandputthemselvesindanger.
Thereisalsoahugemarketforflat-packfurniturewhichyouputtogetheryourselfwithafewbasictools.OftenpeoplewhoarenotverysavvyaboutDIYfindthesupposedlysimpleinstructionsimpossibletofollow,andit’seasytobuildapieceoffurniturewhichisunstableorjustnotveryattractive!
Gardeningisalsopopular,andagoodwaytoenjoytheweatheronasunnyBankHoliday.Butit’snotassimpleasplantingplantsanddoingsomeweeding.Morecomplicatedworksuchasbuildinganewpatioorsomedeckingcancausesomestressandbackache!
Sowhydopeopledoit?
Whoknows,maybewearesousedtoworkingthatwearen’tverygoodatrelaxing.Onething’sforsure,thoughalotofDIYorgardeningprojectswillbestartedwiththebestintentionsduringtheBankHolidayweekend,manyofthemmaynotgetfinished!
Statements:
1.ManyBritishpeoplegotoclothesshops,musicshopsorrelaxathomeonaBankHolidayweekend.
2.DIYprojectsareveryeasytofinishbecausetherearemanyTVprogrammesshowingpeoplehowtodothem.
3.Pullinginanewshowerismoredifficultthanputtingupwall-paper.
4.Non-electriciansarenotsupposedtodoanythingelectricalbecausetheymightputthemselvesindanger.
5.Hat-packfurnitureisfurniturethatcanbeputtogetherwithafewbasictools.
6.Gardeningcancausestressandbackache.
Unit8Everybodycanhelptheenvironment
PartIWarmingup
A
1.Greenpeace,attitudesandbehavior,environment,peace
2.WorldWildlifeFoundation,1961,future,nature
3.LiveEarth,climatecrisis
4.GreenSchoolProject,schools,waste,landfill
5.ClimateChange,knowledge,measures
6.FriendsoftheEarth,network,activistgroups,urgent
7.EnvironmentalBureau,143,31,sustainable
8.Foundation,oceans,wavesandbeaches,50000
9.GreenBuildingCouncil,designed,builtandoperated,responsible,healthy
10.theAlliancetoSaveEnergy,costs,greenhousegasemissions
11.theEarthOrganization,conservation,rehabilitation,pantandanimal
12.Trees,WaterandPeople,naturalresources,well-being
13.AmericanForests,restoreandenhance,filter,remove,homes
14.TheGlobalAmphibianAssessment,status,5918,600,60
15.SolarEnergySociety,technologies
B
1.food,doesn’t,packaging
2.vegetables,don’t,chemicals
3.Save,water
4.won’t,forever,earthorsea
5.bottles,once,bank
6.paper,recycled
7.Avoid
8.unleadedpetrol
9.madefrom,protected
10.publictransportation
11.wood,rainforests
12.aerosols,haven’t
13.Don’t,plasticboxes
14.batteries,little,50,energy
15.lights,using
16.conservation,danger
17.25%,rubbish
18.oldpeople,homes,energy
19.visit,zoos
PartIICampaignCaliforniaRe-Leaf
A
1.theatmosphere,theclimate,irreversible,
2.everybody’slife,activities,realsimple,accessibleto,everydaypeople,doalot
3.onestep,consciousabout,energy,fuelefficient,lightbulbs,recycling
B
1.plantingsingletree
2.deflateGreenhouseEffect/takeCO2
3.realsimpleactivities/accessibletopeople/citizens/doalot
4.cleanupCO2/improveenvironment/neighborhoodsattractive
5.avarietyofpersonalactions
CampaignCaliforniaRe-LeafasinL-E-A-FwaskickedoffrecentlywithapartyinSanFrancisco’sWashingtonSquareParkthrownbyacoalitionofsevenurbanforestrygroups.Thefocusofthepartywastheplantingofasingletree,thefirstof20milliontobeplantedin40Californiancitiesoverthenextdecade.Thetreeplantingcampaignisanattempttodeflatewhat’sbeencalledtheGreenhouseEffect.Scientistsbelievethattheearthisgettingwarmerbecauseofanaccumulationofcarbondioxideintheair.Treestakecarbondioxideoutoftheair.
MartinRosenisthedirectoroftheTrustforPublicLand,theorganizationthatiscoordinationthestat-widetreeplatingeffort.“Timeisnotneutral.Wearesorapidlydepletingtheatmosphere,wearesorapidlychangingtheclimate,thatunlesswestartnowthesituationmaywellbecomeirreversible.”
Somemoviestarswereonhandforthetreeplantingceremony.ActorPeterCyoteservedasthemasterofceremonies.“Unlesstheenvironmentalmovementcomesintoeverybody’slife,inrealsimpleactivities,it’snotgoingtowork.Plantingatreeisrealsimple.SoIwantedtoparticipateinsomethingthatwasreallyaccessibletothecitizen,justtoeverydaypeople,tochildren.Sothatascitizenswecandoalot.”
AfterPeterCyoteintroducedafewspeakersandacoupleofsongsweresung,theceremonymovedovertoacorneroftheparkwhereagroupofyoungstersplantedaCopperBeechtree.
IsobelWadeisthestatecoordinatorforCampaignCaliforniaRe-Leaf.Wadesaysthetreeplantingsareimportantbecausetheywillhelpcleanupthecarbondioxideintheatmosphere,improvetheenvironmentandmakeneighborhoodsmoreattractive,butIsobelWadecautionsitisn’tenough.“It’sonestepinacombinationofthings.Theotherkindsofthingsthatwecanallbedoingarebeingmuchmoreconsciousabouthowweuseenergyinourhome,whetherwe’rebuying—ah—fuelefficientcarsandproducts,whetherwe’reusingStyrofoamwhenwedon’thavetobe,--ah—whetherwe’returningofflightbulbswhenwe—ah—leavetheroom—um—andjustavarietyofpersonalactionslikerecyclingthatweneedtostartthinkingaboutanddoingmore.”
IsobelWadealsosaysshe’dlovetoseeeveryoneinCalifornia’surbanarrearstakethetimetoplantonetreeandtakecareoftheonesthatarealreadygrowing.
PartIIIPBS–abiodegradableplasticproduct
Outline
I.headache
noteasilybreaddown
II.PBS
A:
contact/microorganisms/enzymes/smallerpieces/intowater&CO2
B:
1.safer
90%/degraded/in90days/shorter/inadump
2.moreheatresistant
a.meltat60℃
b.shaperetainedupto100℃
C.disadvantage
moreexpensivethanordinaryplastic/price20%higher
III.Application
A.alreadystarted
B.tobepopularized
C.role
plasticfoodcontainers&tableware/roadsigns/teamcheeringequipment(e.g.horns/miniflags/trashbags/umbrellas/eyeglassframes)
Whenyougotothesupermarket,canyouresistusingplasticbags?
Forlotofus,probablywon’t.Whatyoueatout?
Canyouguaranteenottouseanyplastictableware?
Andhowaboutifsomeoneasksyou;canyourecommendareplacementforplasticproducts?
Don’tsaypaper!
Hereisanewsolution;biodegradableplastic!
Aseveryoneknows,plasticisabigenvironmentalheadachealthoughitbringsusmuchconvenience.Likeplasticbags,plasticfoodcontainers,andplastictableware.Butitisperhapsthemostharmfulofallourgarbagebecauseitdoesnoteasilybreakdowninnature.
AresearcherformtheChineseAcademyofSciences,JiJunhuisaysheandhiscolleagueshavefoundabettersolution.
“WhenthePBSinthebiodegradableplasticcomesincontactwithmicroorganismsorenzymes,theplasticstructurewilldegradeintosmallerpieces,andfinallyitturnsintowaterandcarbondioxide.Thisishowthebreak-downprocessworks.”
PBSisachemicalcomponentthatisthekeytothisnewbiodegradableplastic.Itcanhelptheplasticdegradeintonon-pollutingelements,sothebroken-downplasticfragmentscanbeabsorbedbysoilandwater.
PBSisnotanentirelynewproduct,however,thisChina-madebiodegradableplasticissaferandmoreheat-resistant.AccordingtoJiJun-hui,testinghasshownthat90%ofthisnewbiodegradableplasticcanbedegradedwithin90days.Anditeventakesashorterperiodoftimeifitisburiedinadumpratherthanexposedtoth
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