最新英语听力入门3000unit2答案.docx

最新英语听力入门3000unit2答案.docx

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最新英语听力入门3000unit2答案

Unit2.WorldNews:

EarthandEnvironment

Contents:

Warmingup

Newsreport

Cityrecycling

Goals:

Totrainstudentstorecognizekeywordsandphrasesinlistening

Todevelopstudents’abilitytoidentifysignificantinformationthroughlistening

Toactivatestudents’knowledgeaboutenvironment

Tocultivatestudents’abilityofsummarizing

Teachingmethods:

Students’listening;groupdiscussion;teacher’sinstruction

Duration:

90minutes

I.Warmingup

A.

blaze（n.&v）[C]（a）brightflameorfire火焰;火光:

Drywoodmakesagoodblaze.乾木燃起夺目的火焰.（b）verylarge（oftendangerous）fire大火;火灾:

Fivepeoplediedintheblaze.有五人死於火灾.

Brazil----RiodeJaneiro（formercapitalofBrazil）

Thenewcity,Brasilia,replacedRiodeJaneiroasthecapitalofBrazilin1960.

Desertificationistheprocessbywhichapieceoflandbecomesdry,empty,andunsuitableforgrowingtreesorcropson.（土壤）荒漠化,沙漠化

-----AthirdofAfricaisunderthreatofdesertification.

everglade n.marshland,swamp

-------wetlandsregioninsouthernFlorida大沼泽地

Greenland 

n.self-governingislandbelongingtoDenmarklocatedbetweenIcelandandthenortheasterncoastalislandsofNorthAmerica（largestislandintheworld）

Listentosomesentencesaboutenvironmentandsupplythemissinginformation.

Checktheanswersafterstudents’discussion.

1.Newresearchonthelikelyimpactofclimatechangesuggeststhatdamagetocropsinlow-lyingcoastalregionscouldbeworsethanpreviouslythought.

2.Morethan2000delegatesfromaroundtheworldhavegatheredinnorthernBrazilforthethirdUnitedNationsConferenceonDesertification.

3.CrewsareworkingtocleanupahugeoilspilloffthecoastofMexico,about50milessouthofSanDiego.-----aportcityinCalifornia（USA）

4.WildfiresintheFloridaEvergladeshavebeencontainedafteranearlyaweekofblazesthatconsumed65,000hectaresinthesouthernpartoftheStates.

5.A.USSpaceAgencystudyfindsthatGreenlandismeltingaroundtheedges.Thelosstotheworld’ssecondlargesticesheet---morethan50cubickilometersperyear---isenoughtoraiseglobalsealevelby0.13millimeters.

B.

Aerialoffensive

reptile 

/ˈreptaɪl;US-tl;ˋrɛptl/nanyoftheclassofcold-blooded,egg-layinganimalsincludinglizards,tortoises,crocodiles,snakes,etcwithrelativelyshortlegsornolegsatall爬行动物（冷血,卵生,如蜥蜴﹑龟﹑鳄鱼﹑蛇等）;爬虫.

‘salamander火蜥蜴

alligator短吻鳄

amphibian:

两栖动物

poppy:

罂粟

herbicide:

substanceusedtodestroyweeds

directory:

listoftelephonesubscribers,businessfirms,etc.

xericadj.ofadryenvironment,suitedforadryenvironment

xeriscaping-----alandscapingmethodthatemploysdrought-resistantplantsinanefforttoconserveresources,especiallywater.旱生园艺;节水型花园----通过选择需水少的植物，进行环境美化

sawgrass----AtallcoastalormarshysedgeofeasternNorthAmerica,Mexico,andtheWestIndies,havingleaveswithsharp,minutelytoothedmargins.

锯齿草:

一种产于北美东部、西哥和西印度群岛高海岸或沼生的蓑衣草,叶片具有尖利的小齿边缘.

锯草球场----golfcourse

Preliminarylistening.Listentotheitemsandsummarizeeachofthem.

Listentothenewsitemsagain.Focusyourattentiononthe“wh-“questionsandtrytoanswerthem.

Discussionafterthefirstlistening.

1.What?

Itattemptstobalanceenvironmentalconcernsandtheneedsofthecommunity.

2.What?

Reptilespeciesareingreatertroublethanamphibianspecies.

3．What?

Anewapproachinthefightagainsttheillegaldrugstrade.

4.What?

Oneineveryeightspeciesofplantsisthreatenedwithextinction.

5.What?

Anewlocaldirectoryfortheenvironmentally-aware,calledthe“BoulderCountyGreenPages.”

Newsitems:

1.Australiaistheworld’sdriestcontinent.There’sgeneralagreementthatthecountry

hastousewatermoreefficiently.Inmanyparts,suppliesareincrisis.AtameetinginCanberra,theCouncilofAustralianGovernmentshasapprovedanationalwaterplan.Itattemptstobalanceenvironmentalconcernsandtheneedsofthecommunity.Theamountofwatertakenfromriversforcommercialuseistobecutandfarmerswillbecompensated.

2.Thedisappearanceanddeformityofamphibianssuchasfrogsandsalamandersfromrainforestsandmountainlakesworldwidehasattractedwide-spreadscientificattentionoverthelastdecade.Nowanewstudysaysreptilespeciesincludingturtles,snakes,andalligatorsareinevengreatertrouble.Twiceasmanyreptilesasamphibians,orsome100species,arecurrentlylistedasendangeredbytheWorldConservationUnion.Thestudysayshabitatlossanddegradation,pollution,disease,climatechange,andover-collectionforfood,petsanddrugsarethemajorthreatstoreptiles.

3.Fourregionalgovernorsfromcolumbia,onavisittoWashington,havesharplycriticizedanAmerican-backedaerialoffensivetoeradicatethousandsofhectaresofillegalcocaandpoppyplantations.Atanewsconferencethegovernorsca