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[问答] 一道新G阅读36套的问题 [复制链接]

darkness8804
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楼主

发表于 2011-9-7 23:19:21 |只看该作者 |倒序浏览

本帖最后由 darkness8804 于 2011-9-7 23:20 编辑

出自第四套中的，谁能帮忙讲解一下吗？
The transfer of heat and water vapor from the ocean
to the air above it depends on a disequilibrium at the
interface of the water and the air. Within about a
millimeter of the water, air temperature is close to that of
the surface water, and the air is nearly saturated with
water vapor. But the differences, however small, are
crucial, and the disequilibrium is maintained by air near
the surface mixing with air higher up, which is typically
appreciably cooler and lower in water-vapor content.
The air is mixed by means of turbulence that depends
on the wind for its energy. As wind speed increases, so
does turbulence, and thus the rate of heat and moisture
transfer. Detailed understanding of this phenomenon
awaits further study.

7. According to the passage, wind over the ocean
generally does which of the following?
□A Causes relatively cool, dry air to come into proximity
with the ocean surface.
□B Maintains a steady rate of heat and moisture
transfer between the ocean and the air.
□C Causes frequent changes in the temperature of
the water at the ocean‘s surface.

8. The passage suggests that if on a certain day the
wind were to decrease until there was no wind at
all which of the following would occur?
(A) The air closest to the ocean surface would
become saturated with water vapor.
(B) The air closest to the ocean surface would be
warmer than the water.
(C) The amount of moisture in the air closest to
the ocean surface would decrease.
(D) The rate of heat and moisture transfer would
increase.
(E) The air closest to the ocean would be at the
same temperature as air higher up.

答案是7.A 8.A，请问能讲解下7和8的答案从文中何处推导得来吗？谢谢

36套

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苏梳眠
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沙发

发表于 2011-9-7 23:43:48 |只看该作者

7.题目主要问wind的作用。
而原文中主要介绍海洋与空气的热量传递和蒸汽传递，同时介绍了其机理。下面这一局是核心。解释了disequilibrium是如何造成的，即寒冷且干燥的风不断进入所造成的。
But the differences, however small, are crucial, and the disequilibrium is maintained by air near the surface mixing with air higher up, which is typically appreciably cooler and lower in water-vapor content.

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苏梳眠
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板凳

发表于 2011-9-7 23:53:02 |只看该作者

8. 这一题是指风速降低的条件下，会发生的情况~
Within about a millimeter of the water, air temperature is close to that of the surface water, and the air is nearly saturated with water vapor.
这里只提到了海表面会充满水蒸汽，同时海表面温度与海水温度相近。
文章最后提到，风速增加，会增加水蒸气和热量的交换，这个是基本的自然常识。
BDE可以直接排除。干扰选项C。
这里应该去掉closest to the ocean，而是海面上的水蒸气有所下降。

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darkness8804
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地板

发表于 2011-9-8 02:01:43 |只看该作者

3# 苏梳眠 第8题还是有些不理解，
Within about a millimeter of the water, air temperature is close to that of the surface water, and the air is nearly saturated with water vapor.
我感觉这句话在文中只是一个陈述，并没有说是“风速降低”的结果？
这道题我自己做的时候是选了C了，不过我也没有想出是为什么
而如果C中是错在moisture的closest to the ocean,
那么A当中说的air也是说closest to the ocean，却没有错，是为什么呢？

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苏梳眠
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5楼

发表于 2011-9-8 08:49:23 |只看该作者

本帖最后由苏梳眠于 2011-9-8 08:54 编辑

3# 苏梳眠第8题还是有些不理解，
Within about a millimeter of the water, air temperature is close to that of the surface water, and the air is nearly saturated with water vapor.
我感觉这句话在文中只 ...
darkness8804 发表于 2011-9-8 02:01

正因为是陈述，所以才保证了其正确性。
至于closest to sea~个人觉得体现在Within about a millimeter of the water中了~
而且从理论上，水蒸气从海洋进入空气，首先进入closest to sea的区域，然后在进入其他的区域，风速增加，closest to sea的区域的蒸汽更换速度增加，同样是被蒸汽充满，当风速降低，蒸汽同样首先进入closest to sea的区域，也即在该区域充满水蒸汽。两种情况都能保证这种现象的发生。
而你所说的，蒸汽量减少，如果从海洋表面上的整体环境而言，可能减少。但是在closest to sea的这个过渡区域，其仍然是充满水蒸气的。

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darkness8804
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6楼

发表于 2011-9-8 10:54:53 |只看该作者

5# 苏梳眠 恩，谢谢，这样可以理解了。

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bebyond
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7楼

发表于 2012-3-10 17:37:36 |只看该作者

今天重新做了一下36套中的前面几套。仍然碰到点问题。。
7. According to the passage, wind over the ocean
generally does which of the following?
□A Causes relatively cool, dry air to come into proximity/ `3 _& }2 W4 Z6 J) [
with the ocean surface.! X# j0 Y9 v; L( Z2 H& e9 \
□B Maintains a steady rate of heat and moisture5 Q, n3 M. H8 R' G( q. M) `+ ^) o& r) w
transfer between the ocean and the air.7 e- K+ e2 \! f5 p: Q2 x8 k
□C Causes frequent changes in the temperature of
the water at the ocean‘s surface.
想请问下该贴中的第7题中的C选项，如果把frequent去掉，那么该选项是否正确？
我的疑问集中在由该文，" As wind speed increases, so
does turbulence, and thus the rate of heat and moisture- i3 o7 C: f. n3 {3 J8 r; f
transfer. " heat transfer应该可以推出temperature change吧？
问一下保险～

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