首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food. Fergus Clydesdale, head of
Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food. Fergus Clydesdale, head of
admin
2012-02-02
71
问题
Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food. Fergus Clydesdale, head of the department of food science and nutrition at the University of Massachusetts-Amherst, says bluntly that if the dangers from bacterially contaminated chicken were as great as some people believe, "the streets would be littered with people lying here and there. "
Though the public increasingly demands no-risk food, there is no such thing. Bruce Ames, chairman of the biochemistry department at the University of California, Berkeley, points out that up to 10% of a plant’s weight is made up of natural pesticides (杀虫剂 ). Says he: "Since plants do not have jaws or teeth to protect themselves, they employ chemical warfare. " And many naturally produced chemicals, though occurring in tiny amounts, prove in laboratory tests to be strong carcinogens—a substance which can cause cancer. Mushrooms (蘑菇) might be banned if they were judged by the same standards that apply to food additives (添加剂). Declares Christina Stark, a nutritionist at Cornell University, "We’ve got far worse natural chemicals in the food supply than anything man-made. "
Yet the issues are not that simple. While Americans have no reason to be terrified to sit down at the dinner table, they have every reason to demand significant improvements in food and water safety. They unconsciously and unwillingly take in too much of too many dangerous chemicals. If food already contains natural carcinogens, it does not make much sense to add dozens of new man-made ones. Though most people will withstand the small amounts of contaminants generally found in food and water, at least a few individuals will probably get cancer one day because of what they eat and drink.
To make good food and water supplies even better, the Government needs to tighten its regulatory standards, stiffen its inspection program and strengthen its enforcement policies. The food industry should modify some long-accepted practices or turn to less hazardous alternatives. Perhaps most important, consumers will have to do a better job of learning how to handle and cook food properly. The problems that need to be tackled exist all along the food-supply chain, from fields to processing plants to kitchens. (381 words)
By saying "they employ chemical warfare" (Lines 4~5, Para. 2), Bruce Ames means "______".
选项
A、plants produce certain chemicals to combat pests and diseases
B、plants absorb useful chemicals to promote their growth
C、farmers use man-made chemicals to dissolve the natural chemicals in plants
D、farmers use chemicals to protect plants against pests and diseases
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/kRna777K
本试题收录于:
艺术硕士(艺术基础)题库专业硕士分类
0
艺术硕士(艺术基础)
专业硕士
相关试题推荐
IntheUnitedStates,itisimportanttobeontime,orpunctual,foranappointment,aclass,ameeting,etc.However,thismay
AskmostpeoplehowtheydefinetheAmericanDreamandchancesarethey’llsay,"Success."Thedreamofindividualopportunity
ManyAmericansharboragrosslydistortedandexaggeratedviewofmostoftheriskssurroundingfood.FergusClydesdale,headof
CarsaccountforhalftheoilconsumedintheU.S.,abouthalftheurbanpollutionandonefourththegreenhouse(温室)gases.The
Mostepisodesofabsent-mindedness—forgettingwhereyouleftsomethingorwonderingwhyyoujustenteredaroom—arecausedbya
PresidentCoolidge’sstatement,"ThebusinessofAmericaisbusiness,"stillpointstoanimportanttruthtoday—thatbusinessin
Reebokexecutivesdonotliketoheartheirstylishathleticshoescalled"footwearforyuppies(雅皮士,少壮高薪职业人士)".Theycontendth
Theclocktowerlooksoutovera38一hectarecampusgracedbyanornamentallakeandapillaredcentralhall.Addalittleivyand
"Opinion"isawordthatisusedcarelesslytoday.Itisusedtorefertomattersoftaste,belief,andjudgment.Thiscasualus
CarsaccountforhalftheoilconsumedintheU.S.,abouthalftheurbanpollutionandonefourththegreenhouse(温室)gases.The
随机试题
关于脊柱骨折后影像学检查的描述,错误的是
枳实导滞丸的功用是()
A.挤出制粒法B.湿法混合制粒法C.流化喷雾制粒法D.喷雾干燥制粒法E.模压法
电梯维修保养的原则是()。
某工业项目建设单位通过招标与施工单位签订了施工合同,主要内容包括设备基础、设备钢架(多层)、工艺设备、工艺管道和电气、仪表安装等。工程开工前,施工单位按合同约定,向建设单位提交了施工进度计划,如下图所示:上述施工进度计划中,设备钢架吊
最早明确提出“以形写神”为中心的传神论的画家是()。
为达到德育目的采用的教育者和受教育者相互作用的活动方式的总和是()
临界区是(57)。
一个完整计算机系统的组成部分应该是__________。
It’salmostanarticleoffaith:yourbestallyinthefightagainstcancerisadoggedlyoptimisticoutlook.Anditwouldseem
最新回复
(
0
)