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.

请问当遇到这种完全看不懂不明白逻辑关系的题怎么办？可以帮忙分析一下这篇文章吗

011我是把去银行放进了第一个、第二个、第三个然后分别去算它的可能性，我算出来是10种诶，不太懂为什么答案是12种

老师这个题我不知道为啥每个人扔硬币的组合是2^3...我觉得应该是2*3=6种。然后它里面说P扔硬币的结果没有和任何一个人相同有8*7*7种我也不是很明白。。?

041我没看懂答案，为什么条件2可以确定b一定是整数呀

请金老师帮忙回答下 七龙珠E卷 34 考点： 并列，时态 我自己选的A， 理由：划线外are often dragged under and drowned的 主语that指的就是seabirds， 语义，并列都符合，虽然用的是encountered但是感觉可以接受 给出的答案C，说长线 devastating 海鸟 are often dragged and drowned. 感觉从修饰结构能接受，但是句意不是很理解

请金老师帮忙回答，七龙珠E卷的 32题 考点： 修饰，分号与逗号 读完句子直间排除了BCD， 保留了A，E,做题时没有注意到分号， 是否因为it appears darker是有完整主谓，E不能直接逗号接从而排除

七龙珠E卷的16题 请金老师帮忙解答： 可以看出考点：修饰，指代，时态 根据副词修饰形容词排除了AB， CDE选项，我能看出考点，但是缺选不对答案，比如我知道考点是指代，但是我无法判断percentage of it这个加上到底好不好， 再比如我能注意到 estimated that, 会认为需要用将来式，但是做题的时候感觉读C更顺，而选择C 实际做题的时候，应该怎么结合看出来的考点提高正确率呢？

请问什么时候用从句，什么时候用svo+doing呢？

请问"and consequently"的意思和作用与“and thus" 或“and also"是一样的嘛

since Robert boyle是什么意思怎么感觉怪怪的？所以这道题就是关注语义形式并列而不是看功能并列嘛？还有就是and also到底可不可以用？