标题: 逻辑大全testB第二题，鸟和空气污染求解~~ [打印本页] 作者: zhima427 时间: 2012-7-10 17:43 标题: 逻辑大全testB第二题，鸟和空气污染求解~~ 大全-B-2.In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities.
Each of the following is an assumption made in the argument above EXCEPT:E
(A) In most major cities, air-pollution problems are caused almost entirely by local industry.
(B) Air-pollution regulations on industry have a significant impact on the quality of the air.
(C) The air-pollution problems of other major cities are basically similar to those once suffered by London.
(D) An increase in the number of bird species in and around a city is desirable.（A）
(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area. 看了好多遍都觉得要选e，为什么答案是A呢，求大牛解答 作者: sheryter 时间: 2012-7-10 18:21
Assumption题如果你觉得分不清的话，就加个not，看看原文是否就无法得出结论了:
(B) Air-pollution regulations on industry (does not) have a significant impact on the quality of the air. 如果法规没有作用，就谈不上在其他市推广。所以是assumption. (C) The air-pollution problems of other major cities are basically (not) similar to those once suffered by London. 如果其他市污染情况不同，就谈不上推广 (D) An increase in the number of bird species in and around a city is (not) desirable. 如果不需要鸟数量增加，那也不用推广
对于A和E (A) In most major cities, air-pollution problems are caused almost (not) entirely by local industry. 污染不完全是工业造成的，但部分是。所以还是可以推广，所以就是它了！
(E) The increased sightings of bird species in and around London does (not) reflect an actual increase in the number of species in the area. 多看见鸟不代表鸟就多了，那说明没作用，那也不用推广了。
