研究生英语精读教程课文原文+翻译+短文unit2.doc

______________________________________________________________________________________________________________精品资料Cancer&Chemicals-AreWeGoingTooFar?MarlaConeLastyear,CaliforniagovernorGeorgeDeukmejiancalledtogethermanyofthestate'sbestscientificmindstobeginimplementingProposition65,thestate'sSafeDrinkingWaterandToxicEnforcementAct.Thisnewlawbansindustriesfromdischargingchemicalsuspectedofcausingcancer(carcinogens)orbirthdefectsintowatersupplies.Someclaimitwillalsorequirewarninglabelsoneverythingthatmightcausecancer.去年，加利福尼亚州州长乔治·德米加召集本州许多优秀的科学家开会，开始执行第65号提案，即州安全饮用水和毒品实施法案。这一新法令禁止各工业部门向水源中排放被怀疑致癌和引起先天缺陷的化学物质。有些人宣称，新法律还要求在一切可能致癌的物品上贴上警告标签。Adayofesotericscienceandincomprehensiblejargonwaspredicted.ButBruceAmes,chairmanofthedepartmentofbiochemistryattheUniversityofCaliforniaatBerkeley,hadplanstoliventheproceedings.原来预计，开会那天将全是些玄妙的科学和难懂的术语，但加州大学伯克利分校生物化学系系主任布鲁斯·爱姆兹却打算使会议开得更有生气。Walkingintotheroom,Ameslookedlikethequintessentialscientist:wire-rimmedbifocals,rumpledsuit,tousledhairandasallowcomplexionthatshowedhespentmoretimeinhislaboratorythanintheCaliforniasunshine.Assomeoneintonedaboutthemechanismsofcarcinogenesis,Amesbegantointerjecthisownviews.当爱姆兹走入会议室时，他看上去完全是一个典型的科学家形象：金丝边双光眼镜，皱褶的西服，蓬乱的头发，菜色的面庞，显示出他总是呆在实验室里而很少享受加州的阳光。当某人振振有词地大谈致痛机理时，爱姆兹开始打断他，插进来陈述自己的观点。"Thewholeworldischock-fullofcarcinogens,"Amesdeclared.“Abeer,withits700partsperbillionofformaldehydeandfivepartsper100ofalcoholisathousandtimesmorehazardousthananythinginthewater.Ifyouhavebeeronyourbreath,doesthatmeanyouhavetowarneveryonewhocomeswithintenfeetofyou?"“整个世界都充满了致癌物”，爱姆兹宣称。“啤酒中有十亿分之七百的甲醛和百分之五的乙醇，比水中的任何物质都要危险1000倍。如果你呼出的气息中有啤酒味，那是否意味着你必须向你周围10英尺以内的所有人发出警告?”Inanerawhenheadlinesshoutaboutthelatestcancerscare,Ameshasadifferentmessage:thelevelsofmostman-madecarcinogensaregenerallysolowthatanydangeristrivialcomparedwiththelevelsofnaturalcarcinogens.在大肆宣传最新癌症恐怖的时代里，爱姆兹带来了不同的信息：大多数人造致癌物的含量一般来说都很低。与天然致癌物含量相比其危险微乎其微。Amesisnotaquack.Atage59,heisoneofthenation'smostrespectedauthoritiesoncarcinogenesis.Hisresumeispacked