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.

请英吉老师看一下我这道作文题的找错和论证有什么不足，谢谢！

麻烦唐瑭老师讲解一下这道题的做题思路 谢谢～

麻烦唐瑭老师讲解一下 这道题AC选项以及为什么定位最后一句可以的到A 谢谢～

麻烦金老师讲一下这题C选项，分号后面的句子中is算不算谓语？ 再麻烦老师讲一下这句话意思 谢谢～

麻烦老师分析一下这道bf题 谢谢～

请老师解答一下这个ir题，感觉像加速度有关的物理题，但我忘记公式了

请老师在纸上写一下这道题的过程，谢谢！

英吉老师您好，请问您能够给我解读一下这篇阅读吗？谢谢@英吉

May老师好…117题是一道机经题…请问E为什么不可以。谢谢！

麻烦老师从头到尾讲下这个题，也不太明白为啥CD的choose sb for heading不行，以及C选项的as为啥不行，我记得语法课上讲as是=，在这个题里面Meri…这个人也可以等于这次expedition的head啊，是不是我as的理解有问题，麻烦您详细纠正/指点下，谢谢