下面是新SAT阅读OG2解析(五)，百利天下名师为大家做了最详细的注解，每道题都进行了讲解，大家来练习一下吧。
Questions 43-52 are based on the following passage and supplementary material.
This passage is adapted from Geoffrey Giller, “Long a Mystery. How 500-Meter-High Undersea Waves Form Is Revealed." Q2014 by Scientific American.
Some of the largest ocean waves in the world are nearly impossible to see. Unlike other large waves, these rollers, called internal waves, do not ride the ine ocean surface. Instead, they move underwater,
5 undetectable without the use of satellite imager)' or sophisticated monitoring equipment. Despite their hidden nature, internal waves are fundamental parts of ocean water dynamics, transferring heat to the ocean depths and bringing up cold water from below.
10 And they can reach staggering heights—some as tall as skyscrapers.
Because these waves are involved in ocean mixing and thus the transfer of heat, understanding them is crucial to global climate modeling, says Tom
15Peacock, a researcher at the Massachusetts Institute of Technology. Most models fail to take internal waves into account. “If we want to have more and more accurate climate models, we have to be able to capture processes such as this," Peacock says.
20 Peacock and his colleagues tried to do just that. Their study, published in November in Geophysical Research tetters, focused on internal waves generated in the Luzon Strait, which separates Taiwan and the Philippines. Internal waves in this region, thought to
25 be some of the largest in the world, can reach about 500 meters high. “That’s the same height as the Freedom Tower that's just been built in New York,” Peacock says.
Although scientists knew of this phenomenon in
30 the South China Sea and beyond, they didn’t know exactly how internal waves formed. To find out, Peacock and a team of researchers from M.I.T. and Woods Hole Oceanographic Institution worked with France’s National Center for Scientific Research
35 using a giant facility there called the Coriolis Platform. The rotating platform, about 15 meters (49.2 feet) in diameter, turns at variable speeds and can simulate Earth’s rotation. It also has walls, which means scientists can fill it with water and create
40 accurate, large-scale simulations of various oceanographic scenarios.
Peacock and his team built a carbon-fiber resin scale model of the Luzon Strait, including the islands and surrounding occan floor topography. Then they
45 filled the platform with water of varying salinity to replicate the different densities found at the strait, with denser, saltier water helow and lighter, less briny water above. Small particles were added to the solution and illuminated with lights from below in
50order to track how the liquid moved. Finally, they re-created tides using two large plungers to sec how the internal waves themselves formed.
The Luzon Strait’s underwater topography, with a distinct double-ridge shape, turns out to be
55 responsible for generating the underwater waves.
As the tide rises and falls and water moves through the strait, colder, denser water is pushed up over the ridges into warmer, less dense layers above it.
This action results in bumps of colder water trailed
60 by warmer water that generate an internal wave.
As these waves move toward land, they become steeper—much the same way waves at the beach become taller before they hit the shore—until they break on a continental shelf.
65 The researchers were also able to devise a mathematical model that describes the movement and formation of these waves. Whereas the model is specific to the Luzon Strait, it can still help researchers understand how internal waves are
70 generated in other places around the world.
Eventually, this information will be incorporated into global climate models, making them more accurate. “It's very clear, within the context of these [global climate] models, that internal waves play a role in
75 driving ocean circulations,” Peacock says.
43.第一段的作用是
A 解释一个科学工具是如何使用的
B 表明一个事件的普遍的错误观念
C 描述一个自然现象并且强调了她的重要性
D 呈现一个最近的研究并且总结它的发现
答案：C
考点：作用题
解析： C对第一段作者区别了自然现象内部波浪，并且解释了为什么他们是重要的7-9行尽管他们隐秘的本质， 内部波浪也是海洋水移动的重要部分，把热量传导海洋底部并且把冷水从下面移到上面。
44. capture的含义
A掌握
B 记录
C 追寻
D 吸收
答案：B
考点：词汇题
解析：17-19研究者TOM Peacock争辩为了创造简洁的全球气候模式，科学家们必须记录过程比如内部波浪是如何形成的。
45.根据peacock，监测内部波浪的能力十分重要是因为
A 它允许科学家去核实波浪的最大高度
B 它允许研究者们转换他们的关注力来提高卫星图像的质量
C 对于波浪的研究可以让地区去预测和阻止海岸的侵蚀。
D 对于这种波浪的研究会促进重要的科学模型的发展
答案：D
考点：推断题
解析：17-19行研究者Tom Peacock认为科学家们需要记录内部波浪的过程来形成更加准确的气候模式。Peacoak是在暗示研究内部波浪会为科学模式的形成提供信息。
46下面哪一个为上一道题提供了依据
A 1-2
B 4-6
C 17-19
D 24-26
答案：C
考点：因果关系题
解析： 17-19行Peacoak提供证据研究内部波浪会为科学模式的形成提供信息。ABD不对是因为他们为内部波浪提供了一些基本信息。
47 65行devise的含义
A 创造
B 解决
C 想象
D 开始
答案：A
考点：词汇题
解析： 65-67行Tom和他的团队能够创造一种数学模式这种模式可以描述这些波浪的运动和形成。在这种情况下，研究者创造了一种数学模式。
48 根据这篇文章，可以推测出所有的内部波浪
A 几乎可以达到相同的高度尽管大陆架的位置和深度是变化的
B 或许是由于相同因素造成的但是会受到不同地区地势的影响
C 可以被追诉到在海岛附近的海洋深处的潮水模式不一致
D 是由于相对平坦的海底的高密度海水流动造成的
答案：B
考点：推断题
解析： Tom和他的团队创造了一种海峡地下模型并且决定他的非同寻常的双脊模式对产生地下波浪负有责任。作者表明这种模式描述了只有内部波浪在Luzon海峡，但是团队的发现可以帮助研究者们发现世界其他地方的内部波浪是如何形成的。作者的观点表明尽管在Luzon的内部波浪是最大的，在其他地方形成的内部波浪也是由相似的因素造成的。
49 下面哪一个为上一题提供了证据
A 29-31
B 56-58
C 61-64
D 67-70
答案：D
考点：因果关系题
解析： 67-70行作者提供证据尽管研究者的发现表明在Luzon海峡的内部波浪是有地形影响的。这个发现也表明可以帮助研究者们发现世界其他地方的内部波浪是如何形成的。在其他地方形成的内部波浪也是由相似的因素造成的。
50 哪个等温线在地下的深度的上升在19：:12-20:24?
A 9
B 10
C 11
D 13
答案：D
考点：图表题
解析：在19:12-20:24这个阶段，这张图表明13°等温线从20米增加到40米。
51. 下面哪个概念被整篇文章和图表的信息所支持
A 内部波浪会造成海水盐度的混合
B 内部波浪会推动高密度的海水在低密度海水的上层
C 内部波浪会推动冷水在温水的上面
D 内部波浪不会升起来打破海洋表面
答案：D
考点：关联题
解析：在3-6行作者表明内部波浪不会在海面形成而是在地底部，不使用一些金属设备或者探测仪器是探测不到的。这个图表明明等温线永远不会在海洋表面因为等温线不会记录0.
52.这个图表是如何支持作者的观点内部波浪会影响海水的流动
A 它表明水的运动会强迫更温暖的水流向海底深处
B 它揭示了内部波浪影响深层海水密度的程度
C 表明表明气温的改变发生在一系列单独的深层波浪
D 表明发生在海洋表面的波浪会影响正常潮水的流动
答案：A
考点：证据题
解析： 7-9行作者表明内部波浪是海水运动的重要组成部分因为他们把热量传递到海洋底部把冷水传到上面。图表表明内部波浪迫使等温线到达更加寒冷的地步。比如在13:12，内部波浪把热量传递到海洋底部通过迫使10,11,13度等温线到达更加寒冷的地方。
以上就是关于新SAT阅读OG2解析(五),各位考生在备考中一定要多练习，不论怎样变化，练习是永远的主题，预祝大家取得好成绩。
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