【Chemicalsusedforindustrialprocessesoftencreatedangerousformsofwaste.Theamountofthesechemicalshasrisenheavilyinthepastfewyears,asmoreareasoftheworldindustrializeandnewproductsareproduced.Over80,000differentc】

　　Chemicalsusedforindustrialprocessesoftencreatedangerousformsofwaste.Theamountofthesechemicalshasrisenheavilyinthepastfewyears,asmoreareasoftheworldindustrializeandnewproductsareproduced.Over80,000differentchemicalsareusedinindustriesworldwide.Aroundtheworldhundredsofmillionsoftonsofharmfulwasteareproducedeachyear.Often,itisdifficultandexpensivetogetridofthesechemicalsortostoretheminawaythatdoesnotendangerhumanlifeandtheenvironment.

　　Everyyear,majorhealthproblemsresultfromharmfulwaste.Sadly,itisoftenwhensomeonehasdiedor,becomeseriouslyillthatgovernmentswilltakeactionandreducelevelsofdumpedharmfulwaste.In1989,aschoolinNewJerseyhadtobeclosedbecausestudentstherehadsufferedtoomuchexposuretochromium.Itwaslaterlearnedthatlargeamountsofchromiumhadbeendumpednearbyandblownovertotheschoolarea.

　　Researchhasbeendonetoprovideinformationontheeffectsofeverychemical.Becausewastechemicalsoftenmixtogether,itwillalsobenecessarytolearnhowthecombinationsofthesechemicalsaffecthumanhealth.

　　Somegovernmentshaverealizedhowserioustheproblemisandaremakinglawstogetridofharmfulwaste.Theyarealsotryingtolimittheamountofwasteindustriesareallowedtoproduce.

　　Notonlygovernmentsbutthepublicaswellmustformpartofthesolution.Theycanchoosenottobuythoseproductswhichrequiretheproductionofharmfulwaste,attempttoaffectpolicymakers,andproducelessharmfulwastethemselves.Manyscientiststhinkthatwasteproductioncanbecut.Thewastecanbereducedbyatleastone-thirdusingexistingtechnologiesandmethods.

　　57．Whatismainlydiscussedinthetext?

　　ATheeffectofeverychemical.

　　B．Problemsofharmfulwaste.

　　C．Chemicalsusedforindustrialprocesses.

　　D．Eventsrelatedtowastechemicals.

　　58．Fromthetextweknowthat______.

　　A．chromiumcanpoisonpeoplewhenthereisawind

　　B．chromiumpollutionmakesthelocalgovernmentclosetheschool

　　C．Somegovernmentsdon’trealizehowserioustheproblemsareuntilpeoplesufferalotfromharmfulwaste

　　D．abouttwo-t