Unit 2 Fit for life Period 5 课件 2.ppt

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1、Unit2FitforlifePeriod5课件2Unit2SectionⅠStep1Step2Step3Step4Step51．Howcometherehasbeendebateaboutvaccines?2．WhatdoyouthinkDrGaryGoldbaum'sopinionis?Vaccines,oncecalledthe“saviorofchildren”，nowcauseafiercedebateoftenfoundonpoliticaltalkshows.Questionsoverthesafetyofvaccinescameintothemainstrea

2、minthelate1990s,causedbyinternationaldebateoveraclaimedconnectionbetweenavaccineandautism(自闭性)．ActressJennyMcCarthybecameanadvocateforthecause,blamingherownson'sautismonthevaccine.Themovementquicklygainedadvocacyfromparentswhowantedtoprotecttheirchildrenfromadevelopmentaldisorderforwhichthe

3、reisstillnoknowncause.Since1997,there'sbeenaworldwidedeclineinthenumberofschoolchildrenfromkindergartenthroughhighschoolwhoarefullyvaccinated.InWashingtonstate,alotofparentsrefusedvaccinationsfortheirkindergartenagechildren.Thismeant6.2percentofthesechildrenweremissingoneormoreimmunizations

4、(免疫)inthe200910schoolyear,accordingtotheFederalCentersforDiseaseControlandPrevention.Novaccineis100percenteffective.Butvaccinatingcreatesafirewallagainstthespreadofcontagiousdiseases.“Thisisn'taboutprotectingonechild;it'saboutprotectingtheentirecommunity，”saidDrGaryGoldbaum,healthofficerfor

5、theSnohomishHealthDistrict.“Ourpointofviewisthatimmunizationsareoneofthetopmedicalachievementsofalltime，”hesaid.“Theyworkreallywellatpreventingillnessanddiseases.”“Nationally,morethan10millionvaccinesaregiveneachyeartochildrenlessthanoneyearold.Thenumberofvaccinationsforchildren－nowat16－ist

6、helargestit'severbeen，”hesaid.Atsomehospitalvisits,childrencangetasmanyasfiveorsixvaccines.Stephenssaidinhis26yearsasachildren'sdoctorhehasneverseenachildhasareactiontoanimmunizationmoreseriousthansorearmsandshorttermfever.“Ithinkparentsunderestimate(低估)theseverityofthediseaseandoverestimat

7、etheseverityofthevaccination，”hesaid.Ⅰ.Fillintheblanksaccordingtothefollowingpictures.1.Aisapersonwhopreparesandsellsmedicine.chemist2.Aisapersonwhotakescareofpeople'steeth.dentistⅡ.Answerthefollowingquestions.1．Whatdopeopledowhentheyfeelill?2.Whatwillha