资源描述：
《研究生英语第二单元课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、Cancer&Chemical—AreWeGoingTooFar？陈俊MichaelMaterialsScienceandEngineering:Cancer&Chemical:referstothecompound whichcanleadto increased morbidityormortality,animal andhumantumors. Forexample:aflatoxin,benzopyreneandbenzene etc..NounExplanationmorbidity:病态;不健全;
2、发病;发病率;mortality:死亡率;必死性，必死的命运tumors:肿瘤aflatoxin:黄曲霉毒素benzopyrene:苯并芘Inourdailylife. Whatarethecommon chemicalcarcinogens?carcinogen:致癌物carcinogenItisknown cancercausing chemicalshadonemorethousandkindsof.Includingnatural andsynthetic（人工合成）.Thecommon arethef
3、ollowing：Polycyclic hydrocarbons(多环性碳氢化合物)Coloringmatter(染料)Nitrosamine（亚硝胺）Mycotoxin(霉菌毒素)Arewegoingtoofar？Britishstudy foundthat40%ofallcancersarerelatedtolifestylePublishedintheBritish Journal of Cancer based oncancerpatientslifestyleanalysisshowedthat, 1
4、30000peopleare diagnosedwithcancer everyyearintheUK,where40%ofthepeople aresmoking,drinking and thewrong dietandotherlifestyle. The effectsofsmoking,accountingforabout 23% ofmalepatients and 15.6%female patientswith cancer; thesecondproblemis thelackof malef
5、reshfruitsandvegetables intakeandobesityinwomen, which leadtocancer moreeasilythandrinking; andthecancer with livingandworkingplace.eachofthe25 patientshad aregular exposuretochemical carcinogens; gastriccancer isassociatedwithexcesssalt intake; oralandphary
6、ngealcancer arerelatedtolifestyle.Arewegoingtoofar？Smoking:Producedwhenlitcigarettesmokecontainsmorethan2,000kindsofharmfulchemicals,thereare40kindsofcarcinogens.Inallcancerpatients,1/3ormoreassociatedwithsmoking,suchaslungcancer,laryngealcancer(喉癌),oralcanc
7、er,esophagealcancer（食管癌）,gastriccancer(胃癌),pancreaticcancer（胰腺癌）,kidneycancer（肾癌）,bladdercancer.Smokers,theincidenceoflungcancerthannon-smokerstobe10timeshigher.Dailysmoking25ormorepeople,smokerswithchronicbronchitismortality（慢性支气管炎）rate20timeshigherthannon-
8、smokers.Smoking:Arewegoingtoofar？Unscientificdiet:Accordingtothesurvey,highlyeducatedpopulationsinthediet,theconsumptionofanimalfoodshasmorethancereal（谷类）.Thistypeofdietwealthywesternizedenergys
