A They do not easily degrade (降级) or dissolve（分解） in water.（从句意得知：They指代的是某种物质）
B And manure（肥料）contains especially high levels of bugs that are resistant to antibiotics, he says. （And的出现暗示前句中应该出现he的观点句）
C Animal antibiotics is still an area to which insufficient attention has been paid.（观点句）F They could also （also的出现暗示前文中应该出现讲述They“怎么做”的其他的句子）be leaching （滤去）into tap water（自来水） pumped from rocks beneath fertilized fields.
1．Most researchers assumed that humans become infected with the resistant strains 2。（菌株）by eating contaminated meat. But far more of the drugs end up in manure 3。than in meat products, says Stephen Mueller of the Swiss Federal Institute for 4。Environmental Science and Technology in Dubendorf.____3____
B．思路：But引出的中心句中包含manure（与B中的manure呼应），而且B中的he也在空格前句中有了指代的内容：Stephen Mueller of the Swiss Federal Institute for Environmental Science and Technology。
考点：考察人称代词的呼应和句意在通常情况下会围绕同一中心发展的特点。
A They do not easily degrade (降级) or dissolve（分解） in water.（从句意得知：They指代的是某种物质）
C Animal antibiotics is still an area to which insufficient attention has been paid.（观点句）F They could also （also的出现暗示前文中应该出现讲述They“怎么样”的其他的句子）be leaching （滤去）into tap water（自来水） pumped from rocks beneath fertilized fields.
1．With millions of tons of animals manure spread onto fields of crops such as wheat 2。and barley（大麦） each year, this pathway seems an equally likely route for 3。spreading resistance, he said. The drugs contaminate the crops, which are then 4。eaten. ___4____
F．思路：A和F在句意上都涉及到“水的问题”，句子中出现的代词都可以与空格前句中出现的复数词（The drugs）呼应，而且句子结构有相似，重点观察从句意上看F（进入自来水）和空格前句都在讲述对人类的危害，最合适。
考点：代词的指代特点和并列句子句意发展特点—色彩一致性。
A They do not easily degrade (降级) or dissolve（分解） in water.（从句意得知：They指代的是某种物质）
C Animal antibiotics is still an area to which insufficient attention has been paid.（观点句）
1．Mueller is particularly concerned about a group of antibiotics called 2。sulphonamides（硫胺类药剂）. ____5___His analysis found that Swiss farm manure 3。contains a high percentage of sulphonamides; each hectare of field could be
4。contaminated with up to 1 kilogram of the drugs. This concentration is high enough 5。to trigger the development of resistance among bacteria. But vets are not treating 6。the issue seriously.
分析：空格前后句中的核心结构都是在讲述在围绕Mueller进行客观事实的讲述，而C（概括句）的突然插入，使空格前后句在句意上出现断层，因此判断A正确（A也是事实句，而且A中的They在前句中有指代的内容sulphonamides）
考点：代词的指代特点。
补充：
be concerned about 关心,挂念
trigger v.（= set off; initiate; cause）引发，触发, 发射或使爆炸（武器或爆炸性弹药）
e.g. a high-level meeting that triggered bitter wide debates.
责任编辑：wangpeng6151
