老师您好能否帮我讲解下下面这个文章考试时该如何读，我读完这种文章压根不知道在说什么，只知道在讲ocean basin形成机制的几种理论。No very satisfactory account of the mechanism that caused the formation of the ocean basins has yet been given. The traditional view supposes that the upper mantle of the earth behaves as a liquid when it is subjected to small forces for long periods and that differences in temperature under oceans and continents are sufficient to produce convection in the mantle of the earth with rising convection currents under the mid-ocean ridges and sinking currents under the continents. Theoretically, this convection would carry the continental plates along as though they were on a conveyor belt (conveyor belt: n. 传送带) and would provide the forces needed to produce the split that occurs along the ridge. This view may be correct: it has the advantage that the currents are driven by temperature differences that themselves depend on the position of the continents. Such a back-coupling, in which the position of the moving plate has an impact on the forces that move it, could produce complicated and varying motions. On the other hand, the theory is implausible because convection does not normally occur along lines, and it certainly does not occur along lines broken by frequent offsets (an abrupt bend in an object by which one part is turned aside out of line) or changes in direction, as the ridge is. Also it is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean. This plate is growing on both sides, and since there is no intermediate trench, the two ridges must be moving apart. It would be odd if the rising convection currents kept exact pace with them. An alternative theory is that the sinking part of the plate, which is denser than the hotter surrounding mantle, pulls the rest of the plate after it. Again it is difficult to see how this applies to the ridge in the South Atlantic, where neither the African nor the American plate has a sinking part. Another possibility is that the sinking plate cools the neighboring mantle and produces convection currents that move the plates. This last theory is attractive because it gives some hope of explaining the enclosed seas, such as the Sea of Japan. These seas have a typical oceanic floor, except that the floor is overlaid by several kilometers of sediment. Their floors have probably been sinking for long periods. It seems possible that a sinking current of cooled mantle material on the upper side of the plate might be the cause of such deep basins. The enclosed seas are an important feature of the earth’s surface, and seriously require explanation because, in addition to the enclosed seas that are developing at present behind island arcs, there are a number of older ones of possibly similar origin, such as the Gulf of Mexico, the Black Sea, and perhaps the North Sea.

张老师，这个你那个阅读课里面第十二篇文章。关于是不是细节我处理出了点问题，文章第三段，第一句是k仔细检查了失业模型。第二句是他发现了失业率因阶级而异。第三句是但是这特定阶级内部的失业率影响也不同。第四句即使是在同一个trade里，失业率也不同，confirm里前一句。第五局k用these differential rates 去帮助解释困惑历史学家的现象，这里为什么不是下层细节呢？这句话核心语义是在于“用他的结论去做了件什么事”，并不影响主旨“他的这个结论是什么？”？第六句“但是mobility 不是主要的工人策略”，这里不知道mobility是什么，就返回上一句去看，看见出现在上一句，就觉得在解释上面下沉细节里面的内容是细节转折也就跳了这句。最后一句说的是自救，切入角度小，不读。所以根本没有读出作者在这里还对k怼了一句。这样处理不可以吗？但就是由于这样处理，也就没有读出最后一句前半部分为什么要说尽管还要花很多时间发展应用，这里就没有扣上。。。但实在不懂怎么知道那里就要去读了，感觉有点后面逻辑没有连得上，所以再说服自己该回去读那里的感觉，第一遍读的时候根本对这里没有感觉是逻辑转到了在说他的结论的应用。

May老师，考场上这类题目来不及数，有最简单的解题技巧吗？如果数学要拿48以上，31道题目里可以错几道？

May老师，这道题在GWD的49页，我不懂为什么正确答案是infinite number of integers. 我算出来是30、60、90，所以选了C

May老师，这是GWD里面的一道题，我的方式是：M=6x+1，N=6x+3，所以M+N=12x+4，是不是我的理解上出错了，求解

麻烦老师帮我看一下这一题，条件1可以具体知道X的值，然后条件2可以知道X➕Y的平均值 。条件1 2 连立起来就可以求出具体的 Y值 进而可以求X 和 Y的比列 请问老师哪里不对了

请数学老师答一下，谢谢老师

王文静老师您好，我11月底考试想要请教一下您考前的学习方法。我的背景是高中出国，第一次裸考verbal部分38分，第二次没怎么复习只考了28分。因为两次分数差异较大，我最近一次模考发现语法的扣分率比重较高。我分析了自身问题，主要是第一心情紧张导致分数波动大；第二因为没有系统的学习过语法，做题全凭自己感觉。再近期看了您的视频教学以后很有收获，再做题第一反应已经学会了把考点归类，但是细节上还是会做错。所以结合考期临近，老师您是建议1）考前海量做题还是精做题并重点研究错题？2）重点做OG还是GWD？ 谢谢老师！

王文静老师您好，这道题原题中which是可以指代就近整句话的意思的吗？因为很少看到amounting开头的句子觉得有点怪，就选了C，老师您不能解释一下选项A和C中的错误点

这道题我选对了，但是我是蒙对的。DE insofar的意思和用法我都不太清楚，但是我知道with应该是不优选的，C选项的to be seeing看着不舒服就删掉了，A选项比B选项读起来顺就选了A,完全靠感觉靠运气做这道题。请老师讲一下解题思路和方法，谢谢！

请数学老师解答