陆旭老师，我有一些做过的assumption题目取非的句子搞不清，你能帮忙看下吗(不说这道题目的解题思路，单纯就是取非问题，特别是双重否定或者从句里面有否定词） 1.No part of a person’s brain that is damaged by a stroke ever recovers.---> some part of a person's brain that is damaged by a stroke ever recovers. 2.Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.这个句子我不太会取非，正过来说这个句子就是Impairment of linguistic capabilities occurs in people who have suffered any damage to any language center of the brain.那么我取非是Impairment of linguistic capabilities occurs in people who have not suffered any damage to any language center of the brain. 3.If there are language centers on the left side of the brain, any serious stroke affecting that side of the brain damages at least one of them. 取非If there are language centers on the left side of the brain, any serious stroke affecting that side of the brain damages nothing of them. 4.这题出现两个not The collection fee will not significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out. 我取非直接去前面的not: The collection fee will significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out. 5.这个也差不多 Not all steel producers were unaffected by country A’s newly imposed tariffs. 我取非All steel producers were unaffected bycountry A’s newly imposed tariffs. 6.There are no plants native to western Africa that, if domesticated, could serve as staple food crops. 这个if domesticated是不是可以不管，直接改成There are some plants native to western Africa that, if domesticated, could serve as staple food crops.

老师请问这个问题如何解答

请Tina老师讲解。这个题目问法第一次遇到，说下面哪个不是削弱。这种问法相当于在问哪个是支持或者无关吗？做题时觉得AB都是与原文逻辑无关选项。CDE都在解释一个城市与另一个相比，心脏相关手术的成本因素不同，感觉都与原文相关，但是也不是削弱。这个题目感觉摸不着方向

请王文静老师解答。我理的逻辑链：因为热的地方容易缺水，且全球变暖让温度更高，所以肾结石病会增加。我选的E，说天气热的地方结石病多，冷的地方少。A选项给我感觉是因果倒置，病多的地方，天气热，反了。请老师讲解这个题的正确解题思路，并且指出我的错误在哪，如何避免

C选项的It为什么是指代不清呀

金老师好，当时看B觉得to conquer 的发起者是登山者，不应是hazards，但是根据including觉得是hazards包括这几个事，E从语法上成了amateur including了，这个Ving找动作发起者的规则这里不适用吗？

请老师讲一下思路

请老师讲下第七题思路。我的理解是条件1可以判断，想要成立则xy的个位数应该是5或者0，这样次方之后依然是5或者0，即xy的个位应该相等，所以答案是No。老师，我是错误理解题意了吗？

徐老师讲下第六题，是用捆绑法吗？做这种题特别没有思路，怎么办？

求问解题思路

请问这两题的解题思路