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Fields across Europe are contaminated with dangerous levels of the antibiotics(抗生素)given to farm animals. The drugs, which are i
Fields across Europe are contaminated with dangerous levels of the antibiotics(抗生素)given to farm animals. The drugs, which are i
admin
2016-03-05
79
问题
Fields across Europe are contaminated with dangerous levels of the antibiotics(抗生素)given to farm animals. The drugs, which are in manure sprayed onto fields as fertilizers, could be getting into our food and water, helping to create a new generation of antibiotic-resistant "superbugs(超级病菌)" The warning comes from a researcher in Switzerland who looked at levels of the drugs in farm slurry(泥浆). 【R1】______
Some 20,000 tons antibiotics are used in the European Union and the US each year. More than half are given to farm-animals to prevent disease and promote growth.【R2】______.
Most researchers assumed that humans become infected with the resistant strains(耐药菌株)by eating contaminated meat. But far more of the drugs end up in manure than in meat products, says Stephen Mueller of the Swiss Federal Institute for Environmental Science and Technology in Dubendorf. 【R3】______
With millions of tons animals manure spread onto fields of crops such as wheat and barley each year, this pathway seems an equally likely route for spreading resistance, he said. The drugs contaminate the crops, which are then eaten. 【R4】______
Mueller is particularly concerned about a group of antibiotics called sulphonamides.【R5】______. This concentration is high enough to trigger the development of resistance among bacteria. But vets are not treating the issue seriously.
There is growing concern at the extent to which drugs, including antibiotics, are polluting the environment. Many drugs given to humans are also excreted(排泄)unchanged and broken down by conventional treatment.
A. They don’t easily degrade or dissolve in water. His analysis found that Swiss farm manure contains a high percentage of sulphonamides; each hectare of field could be contaminated with up to 1 kilogram of the drugs.
B. And manure contains especially high levels of bugs that are resistant to antibiotics, he says.
C. Animal antibiotics is still an area to which insufficient attention has been paid.
D. But recent research has found a direct link between the increased use of these farmyard drugs and the appearance of antibiotic-resistant bugs that infect people.
E. His findings are particularly shocking because Switzerland is one of the few countries to have banned antibiotics as growth promoters in animal feed.
F. They could also be leaching(过滤;萃取)into tap water pumped from rocks beneath fertilised fields.
G. There is no doubt that the food and drink is always important to the health.
【R3】
选项
答案
B
解析
选项B中有两处提示,一是本句结尾处的he says,说明上文中必提到一个被引用的人;二是句首的And,这个词表明,这句的内容可能是前一句的延续。前一句引的S.Mueller说的话,讲到在肥料中滞留的药物比肉类产品中的多得多。这句话则继续引用Mueller的话,进一步说肥料中对抗生素有抗药性的病菌含量特别高。
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英语题库普高专升本分类
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英语
普高专升本
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