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标题: 【GRE考试同期生】2015.10.17班 [打印本页]

作者: Gus_guo 时间: 2015-9-21 18:14:54 标题: 【GRE考试同期生】2015.10.17班

GRE考试，你还在一个人看书复习？？

考试什么最怕的就是一个人啃书本啦~

一起来寻找组织吧

什么安静的美男子美女子奏凯！

如果您的GRE考试时间也是2015年10月17日

那就回复本帖一起来抱团祈福，分享考试心情吧

GRE考试报名入口：http://www.takethegre.com/cn/gateway/scoreselect

其他2015GRE考试同期生入口：
2015.10.17 https://bbs.gter.net/thread-1880983-1-1.html
2015.10.30 https://bbs.gter.net/thread-1881354-1-1.html
2015.11.07 https://bbs.gter.net/thread-1881359-1-1.html
2015.11.13 https://bbs.gter.net/thread-1881361-1-1.html
2015.11.20 https://bbs.gter.net/thread-1881381-1-1.html
2015.12.06 https://bbs.gter.net/thread-1881382-1-1.html
2015.12.18 https://bbs.gter.net/thread-1881383-1-1.html

作者: fishay 时间: 2015-9-24 20:02:41

我来抱团

作者: skywalker0102 时间: 2015-9-24 21:06:30

抱团抱团

作者: 灯light 时间: 2015-9-24 22:36:00

he,laila

作者: 石大白 时间: 2015-9-24 22:48:47

啊啊啊啊啊啊啊啊二战好担心！！！！！！！T T

作者: huangjinjin 时间: 2015-9-26 09:11:58

抱抱

作者: 池学敏 时间: 2015-9-26 14:49:14

包团

作者: adu2015 时间: 2015-9-27 15:36:49

抱抱，一起加油。

作者: 叶水木 时间: 2015-9-27 21:40:55

前来报道

作者: 叶水木 时间: 2015-9-27 21:49:03

谁能告诉我carbon dioxide那道阅读第一题那个选项(B) discuss the significance of increasing the amount of carbon dioxide in the atmosphere，是翻译成：讨论增加大气二氧化碳总量的重要性。还是：讨论正在增加的大气二氧化碳的重要性？ nnd怎么看都是第一种翻译，怎么看都觉得这个选项是错的啊TAT

作者: Garbohu 时间: 2015-9-28 19:19:52

今天刚考了一次华丽地阵亡了……希望17号前能真正认识一下GRE，跟它做个好朋友

大家一起加油！

作者: quincywong 时间: 2015-9-30 13:08:59

抱团抱团抱大腿啊

作者: Rhteo 时间: 2015-9-30 23:37:35

来抱个团，我在

作者: xueqian 时间: 2015-10-2 15:12:03

抱团

作者: 派缇特小阿土 时间: 2015-10-2 20:08:48

同是10月17号考得，来抱团了，，今天第一次做完整的模考，用的Magoosh, Q161， V145；中间因为断网大概2题Q，2题V没做；但还是感觉自己略崩溃。大家复习加油~我先去吃个饭

作者: Xuexue23 时间: 2015-10-3 02:21:30

抱团啦

作者: Xuexue23 时间: 2015-10-3 02:23:03

抱团啦

作者: 用户3712909067 时间: 2015-10-3 10:52:56

找到组织~

作者: aflyfish 时间: 2015-10-4 18:12:44

抱团啊，求组队，大家一起准备，有没有什么作文的互改小组，求加入

作者: superhaoshuai 时间: 2015-10-4 22:30:21

加油！！

作者: georgeapex 时间: 2015-10-6 12:39:50

叶水木发表于 2015-9-27 21:49
谁能告诉我carbon dioxide那道阅读第一题那个选项(B) discuss the significance of increasing the amount ...

不是“增加的大气二氧化碳”，increasing the amount...这里是一个action，选项的意思是：讨论这个action的意义

作者: xjy27th 时间: 2015-10-10 10:31:32

抱团！

作者: yylynette 时间: 2015-10-10 16:49:14

妈啊找到组织了好鸡冻！！！！！！！

作者: Lindazc0913 时间: 2015-10-10 17:21:37

抱！团！

作者: zk0834 时间: 2015-10-13 08:52:04

三天

作者: caitaozhan 时间: 2015-10-15 19:23:09

作者: tj12 时间: 2015-10-16 21:38:21

明天！

作者: 叶水木 时间: 2015-10-23 14:45:27

georgeapex 发表于 2015-10-6 12:39
不是“增加的大气二氧化碳”，increasing the amount...这里是一个action，选项的意思是：讨论这个action ...

1. The molecules of carbon dioxide
The molecules of carbon dioxide in the Earth’s atmosphere affect the heat balance of the Earth by acting as a one-way screen. Although these molecules allow radiation at visible wavelengths, where most of the energy of sunlight is concentrated, to pass through, they absorb some of the longer-wavelength, infrared emissions radiated from the Earth’s surface, radiation that would otherwise be transmitted back into space. For the Earth to maintain a constant average temperature, such emissions from the planet must balance incoming solar radiation. If there were no carbon dioxide in the atmosphere, heat would escape from the Earth much more easily. The surface temperature would be so much lower that the oceans might be a solid mass of ice.
Today, however, the potential problem is too much carbon dioxide. The burning of fossil fuels and the clearing of forests have increased atmospheric carbon dioxide by about 15 percent in the last hundred years, and we continue to add carbon dioxide to the atmosphere. Could the increase in carbon dioxide cause a global rise in average temperature, and could such a rise have serious consequences for human society? Mathematical models that allow us to calculate the rise in temperature as a function of the increase indicate that the answer is probably yes.
Under present conditions a temperature of-18°C can be observed at an altitude of 5 to 6 kilometers above the Earth. Below this altitude (called the radiating level), the temperature increases by about 6°C per kilometer approaching the Earth’s surface, where the average temperature is about 15°C. An increase in the amount of carbon dioxide means that there are more molecules of carbon dioxide to absorb infrared radiation. As the capacity of the atmosphere to absorb infrared radiation increases, the radiating level and the temperature of the surface must rise.
One mathematical model predicts that doubling the atmospheric carbon dioxide would raise the global mean surface temperature by 2.5°C. This model assumes that the atmosphere’s relative humidity remains constant and the temperature decreases with altitude at a rate of 6.5°C per kilometer. The assumption of constant relative humidity is important, because water vapor in the atmosphere is another efficient absorber of radiation at infrared wavelengths. Because warm air can hold more moisture than cool air, the relative humidity will be constant only if the amount of water vapor in the atmosphere increases as the temperature rises. Therefore, more infrared radiation would be absorbed and reradiated back to the Earth’s surface. The resultant warming at the surface could be expected to melt snow and ice, reducing the Earth’s reflectivity. More solar radiation would then be absorbed, leading to a further increase in temperature.

17. The primary purpose of the passage is to
(A) warn of the dangers of continued burning of fossil fuels
(B) discuss the significance of increasing the amount of carbon dioxide in the atmosphere
(C) explain how a constant temperature is maintained on the Earth’s surface
(D) describe the ways in which various atmospheric and climatic conditions contribute to the Earth’s weather
(E) demonstrate the usefulness of mathematical models in predicting long-range climatic change

作者: 叶水木 时间: 2015-10-23 14:47:09

georgeapex 发表于 2015-10-6 12:39
不是“增加的大气二氧化碳”，increasing the amount...这里是一个action，选项的意思是：讨论这个action ...

我也这么觉得－－但是这个文章的主旨……应该不是讲增加CO2的重要性－－

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