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According to a report from the Harvard School of Public Health, many everyda
According to a report from the Harvard School of Public Health, many everyda
游客
2023-08-10
40
管理
问题
According to a report from the Harvard School of Public Health, many everyday products, including some bug sprays and cleaning fluids, could lead to an increased risk of brain and behavioral disorders in children. The developing brain, the report says, is particularly【C1】______to the toxic effects of certain chemicals these products may contain, and the damage they cause can be【C2】______.
The official policy, however, is still evolving. Health and environmental【C3】______have long urged U. S. government agencies to【C4】______the use of some of the 11 chemicals the report cites and called for more studies on their long-term effects. In 2001, for example, the Environmental Protection Agency【C5】______the type and amount of lead that could be present in paint and soil in homes and child-care【C6】______, after concerns were raised about lead poisoning. The agency is now【C7】______the toxic effects of some of the chemicals in the latest report.
But the threshold for regulation is high. Because children’s brain and behavioral disorders, like hyperactivity and lower grades, can also be linked to social and genetic factors, it’s tough to pin them on exposure to specific chemicals with solid【C8】______evidence, which is what the EPA requires. Even the Harvard study did not prove a direct【C9】______but noted strong associations between exposure and risk of behavioral issues.
Nonetheless, it’s smart to【C10】______caution. While it may be impossible to prevent kids from drinking tap water that may contain trace amounts of chemicals, keeping kids away from lawns recently sprayed with chemicals and freshly dry-cleaned clothes can’t hurt. A)advocates I)particles
B)compact J)permanent
C)correlation K)restricted
D)exercise L)simulating
E)faculties M)statistical
F)interaction N)tighten
G)investigating O)vulnerable
H)overwhelmed [br] 【C4】
选项
答案
N
解析
该空格处于urge sb.to do sth.的结构中,应填入及物动词的原形,上文提到官方政策还在制定中,而健康及环保人士已经做出努力,下文提到“报告中提及11种化学品的使用”,故此处应填入tighten,本句含义为“健康及环保政策的拥护者们敦促政府部门加强对报告中提及的11种化学品的管制”。故答案为N)tighten“使变紧,加强控制”。备选项中exercise虽然满足语法形式要求,但其含义与上下文语义不符,故排除。
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