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1、Unit1ChoosingaTopicCriticalReadingUnderstandingthetextTASK1KeywordsLaypeople,radiation,understandingObjectiveToinvestigatelaypeople，knowledgeofradiationphenomenaandriskMethodsusedQuestionnairesandinterviewsTASK21Respondentswereawareoftheharmfulhealth
2、effectsofradiation,whiletheyhadalittleunderstandingoftheconceptofradiation.2Thereareabigproportionofrespondentswhosupporttocontinuetheproductionofnuclearpower.3Themassmediaplaysaveryimportantroleinthemisunderstandingofradiation.4Aschoolprogramshouldb
3、edesignedtoanalyzingeverydayconceptionsaboutradiation.TASK3Paras.1-2efbachgdParas.3-6khcdabejfigPara.7bchadfegParas.8-11faikhgcjbdeParas.12-18dhgfabceParas.19-20gcabidhefParas.21-28ijahkbcgdefTASK41-5254136-1097106811-15131511141216-20201918171621-25
4、252321242226-28272628TASK51Theanswerrevealsthattherespondentsfailtounderstandthatanewnucleuswillbeproducedwhenaradioactiveatomisbroken.2Accordingtotheviewofconstructivists,aperson’sideaswillsurviveschooleducationandformanimportantbasisfornewlearning.
5、3Thesolutionistoconsiderlayideasandcombinefactualknowledgewithpracticalorpoliticalfactors.1TASK6Differenttypesofradioactiveelementswillmakedifferenthealtheffects,accordingtocharacteristicsofeachtype.TASK7Itmaybearguedthatthepopulationshouldhaveasuffi
6、cientunderstandingofradiationphenomenatosecureindividualsafetyaswellasdemocraticdecisions.Toattainthis,itisnecessaryforthecommunicatorsofradiationinformationtobefamiliarwiththelaypeople’sperceptionsofthesephenomena.Aquestionnairesurveywasconductedtoe
7、xaminenon-experts’conceptionsofradiationphenomena.Thesurveyrevealedanincompleteunderstandingofconceptssuchasradioactivedecay,half-lifeandabsorptionofradiationandalackofdifferentiationofbetweenradiationandradioactivematerials.Manyrespondentsdidnotdist
8、inguishbetweensourcesofionisingradiationandotherenvironmentalhazards.Nuclearpowerplantsandsubmarineswerethemostfearedsourcesofradiation.Thereareindicationsthatthelayunderstandingofradiationphenomenaandriskistoalargeextentformedbymassmediaandthat“scho
