首页
登录
职称英语
[originaltext] [5]PCBs, were manufactured from the 1920s, but were banned in
[originaltext] [5]PCBs, were manufactured from the 1920s, but were banned in
游客
2024-01-23
14
管理
问题
[5]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.
[6]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, [7]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/3386794.html
相关试题推荐
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpic
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpic
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]Asinglecigarettesoldonastreetcornermaynotcostalot:
随机试题
ThecentralideaofParagraph1isthat______.[br]Itcanbeinferredfromthe
Thenumberofapplicantsforcivilservantshasincreasedabruptlyinrecent
某公开发行A股的股份有限公司采取永续增长的股利政策,股利每年增长3%,预计下年
药物消除的零级动力学是指A.吸收与代谢平衡 B.血浆浓度达到稳定水平 C.单
能够将水流信号转化为电信号,传送到消控室报告火灾发生部位的是下列哪个部件()。
下列关于在建筑中布置柴油发电机房的描述不正确的是( )。A.柴油发电机房应采用
省、市()负责建立劳务分包合同管理信息系统。A.建设主管部门 B.劳动局
正常人清晨空腹血糖浓度为A.2.60~3.10mmol/L B.8.60~11
以下关于卖出看跌期权的说法,正确的是()。A.卖出看跌期权的收益将高于买进
处方中,对饮片品质提出要求的药名有A.马蹄决明 B.左牡蛎 C.鹅枳实 D
最新回复
(
0
)