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标题: 8.19下午，小小狗一只 [打印本页]

作者: lion_n_deer 时间: 2018-8-19 21:51
标题: 8.19下午，小小狗一只
数学：
9个plate的俯视图，每个plate有两个surface，忽略plate的厚度，求所有plate加起来的表面积。那个图片给的真是灵魂画作，就是9条线横横竖竖的，旁边注明了线段的长度，看了半天注意到了一开始题目说了plate是square的！所以用plate旁边标的长度的平方再加起来算就好啦。

阅读：
第一篇：林肯在二战前后对于奴隶解放究竟有没有贡献，传统观点和现在一堆abolitionist的看法相左。题目有(1)traditional view会同意以下哪种看法 (2)with regard to the slavery, black and white abolitionist will support which of the following (3) 林肯在emancipation process充当着什么样的角色 (4) 一个高亮题，忘了...大概意思就是侧面说明了林肯的不作为

第二篇：人们喜欢那种可以在其中感受到uniqueness的advertising，可以让他们觉得自己比其他人更独特。全篇没有反驳的点，都是在讲我们这些自作聪明的人类是怎么在广告中寻找优越感的。有个题是问一个concert想卖票，以下哪种会卖的好，第一个选项是卖一个非常talented的musician的一场only-one-night performance，audience有数量限制，其他忘了。

第三篇: 讲地球的magnetic field的reversal也不怎么的，就记得一个关键词：P（P开头的一个很长的单词）evidence。题目有问1906年前是什么情况以及两个主旨题。

第四篇：讲一个地方的人的房子都是用whale的骨头盖的，大家就觉得诶那你们一定很会捕鲸，然后historian就抬杠说也有可能是是他们捡来的骨头（大概是这个意思记不太清了...) 然后又说回来不不不还是因为他们会捕鲸，第二段就说发现了很多捕鲸的工具和技术，有一个bowhead鲸鱼就是他们的一个rich source。

还有一个SC我印象非常深刻，不管有没有用也写下来吧~
Alomost all....., were they fungus，vertebrates, invertebrates, and no matter whether they occur in forest, sea or ..., are species blablablabla.
A. were they fungus，vertebrates, invertebrates, and no matter whether they occur in forest, sea or ...,
B. were they being fungus，vertebrates, invertebrates， and it didn't matter whether they occur in forest, sea or ...,
C. be they fungus，vertebrates, invertebrates， and it didn't matter that they occur in forest, sea or ...,
D. be they fungus，vertebrates, invertebrates， and no matter whether they occur in forest, sea or ...,
E. be they fungus，vertebrates, invertebrates， and no matter that they occur in forest, sea or ...,

真的是好奇怪的一道题鸭...如果有知道这题在考什么的还请解答一下~

最后想说心好累，这次基本就是裸考的，试试水送波钱....而且觉得好像GMAT这个东西短期内没办法提升很多诶，像阅读这种真的可以很快突破嘛？欢迎来交流一下~祝大家早日分手，冲鸭！

作者: billyisfragile! 时间: 2018-8-19 22:10
Alomost all....., were they fungus，vertebrates, invertebrates, and no matter whether they occur in forest, sea or ..., are species blablablabla.
A. were they fungus，vertebrates, invertebrates, and no matter whether they occur in forest, sea or ...,
B. were they being fungus，vertebrates, invertebrates， and it didn't matter whether they occur in forest, sea or ...,
C. be they fungus，vertebrates, invertebrates， and it didn't matter that they occur in forest, sea or ...,
D. be they fungus，vertebrates, invertebrates， and no matter whether they occur in forest, sea or ...,
E. be they fungus，vertebrates, invertebrates， and no matter that they occur in forest, sea or ...,

https://www.economist.com/science-and-technology/2006/10/05/unity-and-diversity

The space biologists have the advantage that they agree about the pattern they are trying to explain. Almost all groups of life that have been studied—be they fungi, plants, vertebrates or invertebrates, and no matter whether they occur in forests, streams or seas—seem to have more species the closer they are to the equator.

作者: 西瓜anita 时间: 2018-8-19 22:20
请问楼主打了多少分呀还有v的分数

作者: billyisfragile! 时间: 2018-8-19 22:46

第三篇: 讲地球的magnetic field的reversal也不怎么的，就记得一个关键词：P（P开头的一个很长的单词）evidence。题目有问1906年前是什么情况以及两个主旨题。

是原文吗？

Ancient Magnetic Reversals: Clues to the Geodynamo
Is the earth headed for a reversal of its magnetic field? No one can answer this question yet, but rocks magnetized by ancient fields offer clues to the underlying reversal mechanism in the earth's core

By Kenneth A. Hoffman

Indeed, paleomagnetic evidence led to the first proposal that the earth's field has reversed itself, put forward in 1906 by the French physicist Bernard Brunhes. Brunhes was intrigued by the discovery of rocks that were magnetically oriented in the direction opposite to the earth's field. His startling suggestion was furiously debated for more than five decades. It was not until the early 1960's, at about the time]. S. B. Van Zijl and his colleagues published the first detailed study of a paleomagnetically recorded field reversal in lavas from South Africa, that the idea was accepted by the scientific community at large. Today it is a fundamental tenet of geophysics that the earth's magnetic field can exist in either of two polarity states: a "normal" state, in which north-seeking compass needles point to the geographic north, and a "reverse" state, in which they point to the geographic south.

作者: lion_n_deer 时间: 2018-8-19 23:33

bzy! 发表于 2018-8-19 22:46
是原文吗？

Ancient Magnetic Reversals: Clues to the Geodynamo

对就是这个诶，这个是第二段，全文一共四段

作者: billyisfragile! 时间: 2018-8-19 23:36

lion_n_deer 发表于 2018-8-19 23:33
对就是这个诶，这个是第二段，全文一共四段

非常感激验证。
Ancient Magnetic Reversals: Clues to the Geodynamo
Is the earth headed for a reversal of its magnetic field? No one can answer this question yet, but rocks magnetized by ancient fields offer clues to the underlying reversal mechanism in the earth's core

By Kenneth A. Hoffman

For well over a century geophysicists have observed a steady and significant weakening in the strength of the earth's magnetic field. Indeed, if this trend were to continue at the present rate, the field would vanish altogether in a mere 1,500 years. Most investigators are inclined to think that the decay is merely an aspect of the restlessness inherent in the field and that the field will recover its strength. Yet one cannot dismiss out of hand the possibility that the weakening portends a phenomenon that has recurred throughout geologic time: the reversal of the geomagnetic field.

Which of these two scenarios is correct? The answer lies concealed 3,000 kilometers below the earth's surface within the outer core, a slowly churning mass of molten metal sandwiched between the mantle of the earth and the solid inner core. It is now generally accepted that the earth's magnetic field is generated by the motion of free electrons in the convecting outer core. This theory supposes the core behaves like a self-sustaining dynamo, a device that converts mechanical energy into magnetic energy. In the geodynamo the earth's rotation, along with gravitational and thermodynamic effects in and around the core, drives the fluid motions that produce the magnetic field.

Although the basic principles of dynamo action are well established, geophysicists do not yet understand the thermodynamics, fluid mechanics and electrical properties of the earth's interior well enough to construct a universally accepted model of the geodynamo. Yet its workings can be glimpsed indirectly by observing the present-day field. These measurements yield many details of the short-term behavior of the field, such as its shape and "secular variation," or ordinary fluctuation. To study the activity of the dynamo over aeons one must turn to the paleomagnetic record―the ancient magnetism frozen into rocks from the time of their formation.

Indeed, paleomagnetic evidence led to the first proposal that the earth's field has reversed itself, put forward in 1906 by the French physicist Bernard Brunhes. Brunhes was intrigued by the discovery of rocks that were magnetically oriented in the direction opposite to the earth's field. His startling suggestion was furiously debated for more than five decades. It was not until the early 1960's, at about the time J. S. B. Van Zijl and his colleagues published the first detailed study of a paleomagnetically recorded field reversal in lavas from South Africa, that the idea was accepted by the scientific community at large. Today it is a fundamental tenet of geophysics that the earth's magnetic field can exist in either of two polarity states: a "normal" state, in which north-seeking compass needles point to the geographic north, and a "reverse" state, in which they point to the geographic south.

In the 1960's studies of radiometrically dated lavas yielded a consistent log of past polarity changes, including no fewer than nine major reversals in the past 3.6 million years, the most recent of which occurred 730,000 years ago. The time scale of polarity transitions has since been extended back nearly 170 million years.

Paleomagnetic records show that the geomagnetic field does not reverse instantaneously from one polarity state to the other. Rather, the process involves a transition period that typically spans a few thousand years. Hence for perhaps 98 percent of the time the field is stable and its shape is well understood. But for the remaining 2 percent of the time the field is unstable and its shape is not obvious. The foremost task for geophysicists in my field has been to chronicle the behavior of the reversing field―its shifting shape and fluctuating intensities―based on the sometimes faint and complex record of past events, imprinted in stone. The findings provide an invaluable probe into the hidden mechanisms of the geodynamo.

作者: cloud9zh 时间: 2018-8-19 23:42
谢谢楼主！！
想问下第一题的话两个surface是不是平方和还要乘2

作者: lion_n_deer 时间: 2018-8-19 23:46

cloud9zh 发表于 2018-8-19 23:42
谢谢楼主！！
想问下第一题的话两个surface是不是平方和还要乘2

没错~

作者: divedeep 时间: 2018-8-19 23:49

bzy! 发表于 2018-8-19 22:46
是原文吗？

Ancient Magnetic Reversals: Clues to the Geodynamo

哇塞这位同学你是怎么搜到原文章的？有什么技巧吗谢谢！~

作者: 我想静静 时间: 2018-8-20 14:16
我想请教大家逻辑helr在实战中有用么？看到有的帖子说读懂自然逻辑就对了，helr的方法可能没有那么实用？在准备逻辑中，请教一下大家的方法QAQ

作者: maggie790 时间: 2018-8-20 22:47
顶楼主！

作者: 郑布拉希莫维奇 时间: 2018-8-22 01:02
感谢楼主！

作者: 芝士就是力量216 时间: 2018-8-26 11:21

bzy! 发表于 2018-8-19 22:10
Alomost all....., were they fungus，vertebrates, invertebrates, and no matter whether they occur in ...

请问这个题选什么？谢谢

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