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Unit2EnvironmentThecostofbeautyWhatusuallycomestopeople’smindswhentheythinkofairpollution?Words&Expressionsestimatev.:tojudgeorcalculatethenature,value,size,amount,etc.,of(something)e.g.Iestimatethatweshouldarriveat5.30.Wehaven’testimatedtheproperpriceoftheseproducts.Under-estimate:over-estimate:2.cometomind:tobethoughtaboute.g.Ijustpickupwhatevergroceriescometomind.Agoodideasuddenlycomestomymind.3.allthat:(nonassertive)verye.g.I’mnotallthathungry.4.confine(to)v.:toshut,orkeepinasmallspacee.g.Johnwasconfinedtobedforaweekwithhiscold.Thepoorsoldierwasconfinedtoadarksmallroomforhismistakes5.focuson:todirectone’sattentiontoe.g.Todaywe’regoingtofocusonthequestionofhomelesspeopleinLondon.Focusyourattentiononyourwork.6.appropriatea.:correctorsuitableforaparticularsituationoroccasione.g.Ithinkthisisanappropriatemomenttoraisethequestionofmypromotion.Hisremarksarenotappropriateforthisoccasion.7.buildup:toincrease,develop,orbecomegraduallylargere.g.Trafficgoingoutofthecityisalreadybuildingup.Hehasbuiltupagoodbusinessovertheyears.8.potentiala.:existinginpossibilitye.g.Heisseenasapotentialleaderofourpoliticalparty.Wecan’tignorethepotentialdangeraroundus.9.giveoff:tosendout(esp.aliquid,gas,orsmell)e.g.Theeggsweregivingoffabadsmell.Thefactorygaveoffmuchpoisonousgas.10.exposeto:touncover,soastoleavewithoutprotection(fromsomething)e.g.Don’texposeittothesun.Keepindoors;don’texposeyourskintothesun.11.responsible(forsomething):involvingtheobligationtomakedecisionsforothersandbeartheblamefortheirmistakese.g.Wearelegallyresponsibleforourchildren.It’syouwhomadethemistake.Youareresponsibleforit.12.replacewith/by:tochange(something)for(somethingelseinstead)e.g.Wehavereplacedslavelabourwith/bymachines13.keepaway(from):toavoidcoming/goingnear(to)e.g.Keepawayfromthefire,children.※...you’vegotarecipeforillness....allthefactorscausingillnessareavailablehere.1.TheU.S.DepartmentofLaborOccupationalSafetyandHealthAdministration美国职业安全与健康监察局(英文简称OSHA),是美国依据《职业安全与健康法》(1970年)的规定,为保障500万个工作场所中的8500—9000万