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  3. This week marks the 10th anniversary of the Alar apple scare, in which many American consumers were driven into a panic followin

This week marks the 10th anniversary of the Alar apple scare, in which many American consumers were driven into a panic followin

admin2010-02-21  78
问题    This week marks the 10th anniversary of the Alar apple scare, in which many American consumers were driven into a panic following the release of a report by an environmental organization claiming that apples containing the chemical Alar posed a serious health threat to preschoolers. The report was disseminated through a PR (Problem Report) campaign and bypassed any legitimate form of scientific peer re view. Introduced to the American public by CBS "60 Minutes," the unsubstantiated claims in the report led some school districts to remove apples from their school lunch programs and unduly frightened conscientious parents trying to develop good eating habits for their children.
   Last month, Consumers Union released a report wanting consumers of the perils of consuming many fruits and vegetables that frequently contained "unsafe" levels of pesticide residues. This was especially true for children, they claimed, lake its predecessor 10 years earlier, the Consumers Union report received no legitimate scientific peer review and the public’s first exposure to it was through news coverage.
   Not only does such reporting potentially drive children for consuming healthful fruits and vegetables, the conclusions were based on a misleading interpretation of what constitutes a "safe" level of exposure. Briefly, the authors used values known as the "chronic reference doses," set by the U.S. environmental Protection Agency, as their barometers of safely. Used appropriately, thee levels represent the maximum amount of pesticide that could be consumed daily for life without concern. For a 70-year lifetime, for example, consumers would have to ingest this ’average amount of pesticide every day for more than 25,000 days. It is clear, as the report points out, that there are days on which kids may be exposed to more; it is also clear that there are many more days when exposure is zero. Had the authors more appropriately calculated the cumulative exposures for which the safety standards axe meant to apply, there would have been no risks and no warnings.
   Parents should feel proud, rather than guilty, of providing fruits and vegetables for their children. It is well established that a diet rich in such foods decreases the risk of heart disease and cancer. Such benefits dramatically overwhelm the theoretical risks of tiny amounts of pesticides in food. So keep serving up the peaches, apples, squash, grapes and pears.
With regard to the pesticides in food, this passage seems to argue that ______.
选项 A、parents should keeps their children from the food with pesticicles
B、they should be applied to fruits and vegetables wit caution
C、more research needs to be done on their harmfulness to health
D、they are not as threatening as said to children most of the time
答案D
解析 第四段说：父母给孩子提供水果和蔬菜应该感到骄傲而不是内疚。这些好处大大超过了食物中含有微量杀虫剂在理论上的危险性。所以正确答案是D(大多数情况下食物中的杀虫剂并不像所说的那样对孩子有那么大威胁)。
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