帮我看看我的思路错在哪

bunnyfdu2015

我把我自己的思路贴出来，请你们帮分析一下到底错在哪

Eurasian watermilfoil, a weed not native to Frida Lake, has reproduced prolifically since being accidentally introduced there. In order to eliminate the weed, biologists proposed treating infested parts of the lake with a certain herbicide [that is nontoxic for humans and aquatic animals]. However, the herbicide might damage populations of certain rare plant species that the lake contains. For this reason local officials rejected the proposal.

Which of the following, if true, points out the most serious weakness in the officials' grounds for rejecting the biologists' proposal?

Ew是一种草，大量繁殖

为了消灭这种草，生物学家建议用无害的除草剂去治理被感染的地方

然而，除草剂可能会破坏稀有植物，所以官员否定这个建议

	The continuing spread of Eurasian watermilfoil in Frida Lake threatens to choke out the lake's rare plant species.
	Because of ecological conditions prevailing in its native habitat, Eurasian watermilfoil is not as dominant there as it is in Frida Lake.
	The proliferation of Eurasian watermilfoil in Frida Lake has led to reductions in the populations of some species of aquatic animals.
	Although Eurasian watermilfoil could be mechanically removed from Frida Lake, eliminating the weed would take far longer this way than it would using herbicides.
	Unless Eurasian watermilfoil is completely eliminated from Frida Lake, it will quickly spread again once herbicide treatments or other control measures cease.

   答案选A，我自己选的E      下面是我的想法
A-      杂草使珍稀植物死亡，说了杂草怎样，问题是除草剂和珍稀植物之间的关系
B-      说的是native habitat和F湖的关系，不关心；还说dominant的问题，更不关心

       C-      杂草的扩散降低海洋生物的数量，还说没说到除草剂

       D-      Mechanically消除比用除草剂时间长，时间比较，不关心

       E-       除非杂草完全被消除，杂草很快又会再扩散只要除草剂停止使用，说了除草剂的一个缺点-没有根治性，要一直一直用这个除草剂知道完全消除

旺财财

bunnyfdu2015 发表于 2014-7-11 23:20
旺财应该很厉害的嘛

求不黑～+_+

bunnyfdu2015

旺财财 发表于 2014-7-11 14:18
8-19已准备二战。  不解释

旺财应该很厉害的嘛

旺财财

bunnyfdu2015 发表于 2014-7-10 22:29
8月底，都是lei

8-19已准备二战。  不解释

bunnyfdu2015

旺财财 发表于 2014-7-10 22:05
-。 0
道友~~~几月上战场啊~~~~

8月底，都是lei

旺财财

bunnyfdu2015 发表于 2014-7-10 19:29
虐死了，想早点考过

-。 0
道友~~~几月上战场啊~~~~

bunnyfdu2015

旺财财 发表于 2014-7-3 23:04
亲，我也是逻辑小白，不过你问这个题有没有650的难度，我觉得好像很难回答，因为CR本身就是一部分在语文 ...

虐死了，想早点考过

liam911

政府反对的理由是除草剂会导致稀有植物被摧毁。。题目是问weaken 政府的假设，所以要围绕稀有植物。。E项都没提到稀有植物，所以肯定不对。

sherlockjoe

我的一点小思考，A选项 这种杂草已经影响到稀有生物了，你不喷洒是为了保证稀有生物，当然矛盾了，仔细一想当然是选A了。

旺财财

山贼的头头 发表于 2014-7-3 19:09
你没有顺着植物会死亡这个思路去想，偏离了题目的reasoning line。所以不对。思路应该是就算不用，杂草本身 ...

亲，我也是逻辑小白，不过你问这个题有没有650的难度，我觉得好像很难回答，因为CR本身就是一部分在语文考试里，而且难度变化跟分值变化是不一样的。 -。 -所以