Unit1PartIGettingreadyA.B.Keys:1:burningoftheforests/treeremoval(deforestation)/reductionoftheworld'srainforests2:globalwarming/greenhouseeffect/emissionsofCO2PartIITheEarthatrisk(I)A.Keys:1.a.Morepeople--------morefirewood----fewertreesb.Moredomesticanimals------moreplants-----feweravailableplantsa,b--Moredesert----movesouth-----desrttexpandingsouth----nograss2.Growingcropsstabilizesoil,withoutthemthetopsoiljustblowsaway.Butifthereisn'tenoughrainthecropsdon'tgrow.3.Peopletrytogrowfoodtosupportthemselvesortocreaterancheswherecattlecanberaised,ortogethardwoodforexport,ortomakewayforanironoremineB.Keys:1:SaharaDesert2:NorthAmerica&mostofEurope3:topsoilblowingaway4:tropicalforestsdestruction5:animal/plantspeciesbecomingextinct6:climatechangeforthewholeworldPartIIITheEarthatrisk(II)A.Keys:1:Treeswouldholdrainfallintheirroots.Whenforestsinthehigherup-riverhavebeendestroyed,alltherainthatfallsinthemonsoonseasonflowsstraightintotheriverandstartstheflooding.2:Heimpliesthatsomenationalgovernmentsjustconsidertheresultsoftheirpoliciesinthenearfuture,orjustthinkasfaraheadasthenextelection.B.Keys:1:floodinginBangladesh2:Actiontobetaken3:populationcontrolPartIVMoreaboutthetopic:TheEffectsofGlobalWarmingKeys:1:Warmingupoftheworld2:Effectsofglobal3:reducedpotentialforfoodproduction4:changeofpatternsofhear-relatedfoodpoisoning,etc.PartVDoyouknow…?A.Keys:1:F2:F3:F4:F5:TB.Keys:Dos1:yourtowels2:Cutout3:awall-fire4:fridge5:waituntilyou'veafullload6:acompletemealDon’ts7:ironeverything8:theironup9:thekettle10:tothebrim11:hotfoodTapescriptofUnit1PartIGettingreadyA.B.1.TheAmazonforestsaredisappearingbecauseofincreasedburningandtreeremoval.InSeptember,satellitepicturesshowedmorethan20000firesburningintheAmazon.Expertssaymostofthesefiresweresetbyfarmers.Thefarmerswereattemptingtoclearlandtogrowcrops.TheWorldWildlifeFundsaysanotherseriousproblemisthattoomanytreesintheAmaz