首页
登录
职称英语
[originaltext] PCBs, were manufactured from the 1920s, but were banned in the
[originaltext] PCBs, were manufactured from the 1920s, but were banned in the
游客
2024-01-23
45
管理
问题
PCBs, were manufactured from the 1920s, but were banned in the US in 1979, in the UK in 1981 and in the rest of the EU in 1987.
They were found to have a wide-ranging impact on human and animal health, from links to cancer, to restraining the immune system and causing reproductive problems. However, these chemicals are extremely durable and despite the ban they are still found in the environment.
"Europe produced about 300,000 tonnes of PCBs from 1954 to 1984. That was about 15% of the world’s total," said Dr Jepson. "A lot of this PCB, we don’t know how much, has not been dealt with and is slowly leaking into rivers, from landfills, and eventually into the marine environment." The chemicals then gradually work their way up the food chain and into the top marine animals.
The researchers analysed samples taken from more than 1,000 killer whales and dolphins in Europe’s waters. "Our findings show that, despite the ban and initial decline in environmental pollution, PCBs still persist at dangerously high levels in European whales," explained Dr Jepson.
5. When were the PCBs banned in the UK?
6. Why should PCBs be banned according to the news report?
7. What do we learn about PCBs from the research?
选项
A、There aren’t any PCBs in Europe’s waters.
B、1,000 killer whales and dolphins carry PCBs.
C、There is no relation between PCBs and environment
D、PCBs still exist in European whales.
答案
D
解析
新闻的最后提到,杰普森博士解释说其研究结果显示PCB仍然存在于欧洲的鲸类中。故D正确。新闻中提到有很多PCB流入河流和河口,最终流入了海洋环境,故A“欧洲的水体没有PCB”与新闻不符。研究人员分析了欧洲海域的1000多个虎鲸和海豚的样本,并不表示有1000条虎鲸和海豚携带了PCB,故B错误。整篇新闻都涉及了PCB和环境污染的联系,故C不对。
转载请注明原文地址:https://tihaiku.com/zcyy/3386083.html
相关试题推荐
[originaltext](5)ThreeuniversitystudentsinSantiago,Chile,havedevelo
[originaltext](5)ThreeuniversitystudentsinSantiago,Chile,havedevelo
[originaltext]TheTunisiangovernmentsaidMondaythat45peoplehavebeen
[originaltext]NewYorkStateplanstoshutoffthethunderingwatersofNia
[originaltext]NewYorkStateplanstoshutoffthethunderingwatersofNia
[originaltext](5)TheUSPostalServiceannouncedtodaythatitisconsider
[originaltext](5)TheUSPostalServiceannouncedtodaythatitisconsider
[originaltext]A16thcenturycastleinScotlandisclosetocollapsingafte
[originaltext](5)A16-year-oldaskedastrangeratagrocerystoretobuy
[originaltext]It’snotyourimagination.TrafficintheUSisactuallygett
随机试题
[originaltext]L—LiuFeifei,hostofDialogueonCCTV—9R—AlistairRichards,Ch
[originaltext]W:TheroomissostuffythatIcanhardlybreathe.M:Ithinkth
李明、王兵、马云三位股民对股票A和股票B分别作了如下预测李明:只有股票A不上涨,
我国法定报告性病为_____________、_____________、___
尿路感染脾肾亏虚,湿热屡犯证的治法是A.健脾补肾 B.健脾补肺,利水
下列各项中不属清热法适应证的是A.热毒内传之走黄内陷 B.药物性皮炎皮损色红灼
对涉及工程结构安全的试块、试件及有关材料,应实行见证取样。见证取样资料由( )制
山有山的雄峻,水有水的柔婉,云有云的飘渺,而表现出来的美丽各不相同。如果每个人都
在爆炸性气体环境中,低压电力、照明线路绝缘导线和电缆的额定电压不低于工作电压,且
某期间,市场无风险报酬率为10%,平均风险股票必要报酬率为15%,某公司普通股β
最新回复
(
0
)