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1、UNIT1OurEarthTrack4-1-2&4-1-3Blake:Whatareyouworkingon,Mary?Mary:I'mfinishingmypaper.It'sduetomorrow,Blake.Blake:What'sthetopic?Mary:It'saboutGreenland.Blake:Greenland.Hmmm...that'spartofCanada,right?Mary:Ithinkyouneedtostudyyourworldgeography,Blake.Blake:Well,isn'titnearCanada?Mary:
2、Yes,it'soffthecoastofnortheastCanada,butit'spartofDenmark.Blake:Oh,Ididn'tknowthat.Well,what'syourpaperaboutexactly?Mary:Inmypaper,Ianswerthequestion"IsGreenlandreallygreen?"Inotherwords,isGreenlandcoveredbyalotofplantsandtrees?Blake:Isit?Mary:Whatdoyouthink?Blake:Let'ssee...Greenlan
3、disintheArcticCircle-wayupnorth.It'scold,...so"IsGreenlandreallygreen?"I'danswer"probablynot."Mary:You'dbecorrect.It'stoocoldthere.Inthenorth,alotofthegroundisfrozen.Thesummersareshort,soonlythesurfacethaws.Blake:Thatsoundstough.Mary:It'shardfortheconstructionindustry.It'snoteasytobu
4、ildinGreenland.Blake:Itsoundssoharsh.Whywouldanyonewanttogothere?Mary:Therearebigmountainrangesonthecoasts.They'regreatforhikingandoutdoorsports.Andtherearelotsofanimalsthere.Youcansometimesseewhalesswimmingintheharbors.Blake:Thatsoundscool!OK,soifit'snotreallya"green"place,whywasitn
5、amed"Greenland"?Mary:Thefirstsettlerswantedtoattractotherpeople.Theygaveitanattractivename.4-1-4&4-1-5Jay:Comeinhere,Elise.Youshouldseethisshow!Elise:Whatisit?Jay:It'scalled"TheTitanicoftheSky".It'sabouttheHindenburg,agreatengineeringfeat.Elise:TheHindenburg...Jay:Youknow,thatgiantze
6、ppelinthatcrashedin1934.Thirty-fivepeopledied.Elise:Ohyeah,Iremembernow.ItwasflyingfromGermanytotheUnitedStates.Itcrashedasitwaslanding.Jay:Right.It'ssofunnylooking,don'tyouthink?Itdoesn'tlookanythingliketheairplaneswehavetoday.Elise:That'strue.Whywouldpeoplerideinazeppelinanyway?Its
7、eemssodangerous.Jay:Well,somepeoplecalledtheHindenburg"man'sgreatestachievementinflight."Theythoughtitwassafe,Iguess.Elise:Whorodeinitanyway?Jay:Mostlywealthypeople.Itaccommodatedbetween30and40passengersandcrew.Onepersonsaiditwaslikea"flyinghotel."Elise:Itsoundsprettygreat.Jay:Yeah,a
8、nditwasfast.
