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GMAT考试已于2012年3月1日更换题库,以下是2012年3月的GMAT阅读机经更新,更新日期从2012年3月1日起至3月29日,目前共50题。澳际留学在此祝大家GMAT考试顺利!
24.喜马拉雅峰测高(已考古)
第一段:这个中国在19XX年给喜马拉雅峰测高去,用的和英国在18XX年基本一样的设备(有题目,问中英测量高度工作中有什么不同,我记得是选设备基本一样,但是又有更先进的想法,记不清了)。之后就是讲怎么个原理,跟咱们太阳高度角那个挺像的,两个杆子算角度什么的。
第二段:虽然设备一样,但是中国人想了很多方法来减小误差(有题目,问这句话的作用是什么)。列举了常见的误差,什么rlection,海拔高度差等等(这里要注意,有细节题,问下列哪一个不是误差原因之一)。在列举误差的同时又说了每个误差是怎么尽量被缩小的。
【考古】
中国登山队测量喜马拉雅山高度的那道jj。以前的G友说过这篇文章第一段可以跳过,同意他的看法,只要大致扫过第二段所提到中国登山队不同于英国队的几点作法,心中有个谱即可作答。说真的,我只看懂其中第一点:光线穿透云层时会产生折射(rraction),其它两点似懂非懂,并不影响答题。大家不需浪费太多时间钻研里面的生词或概念,题目都很浅显、简单。
【原文】
71. GWD-26-Q32-Q35
In 1975 Chinese survey teams 1975 年中国人量度珠峰,使用的
remeasured Mount Everest, the highest 技术和1852年英国人的相同。
of the Himalayan mountains. Like the 他们从海岸线开始行进,每隔几
Line British in 1852, they used the age-old 步量度一次上升高度。
(5) technique of “carrying in” sea level:
surveyors marched inland from the
coast for thousands of miles, stopping
at increments of as little as a few feet
to measure their elevation, and mark-
(10) ing each increment with two poles.
To measure the difference in elevation 使用工具:置于两根杆中间的望
between poles, surveyors used an 远镜。
optical level—a telescope on a level
base—placed halfway between the
(15) poles. They sighted each pole, read-
ing off measurements that were then
used to calculate the change in eleva-
tion over each increment. In sight of 看到峰顶时,他们使用经纬仪
the peaks they used theodolites— 探定顶点的上升。
(20) telescopes for measuring vertical and
horizontal angles—to determine the
elevation of the summit.
The Chinese, however, made 但中国人努力改正英国人的误
forts to correct for the errors that 差。
(25) had plagued the British. One source 误差1:由于不同温度压力造成
of error is rraction, the bending of 的光折射。这会产生峰顶幻象。
light beams as they pass through air
layers of different temperature and
pressure. Because light traveling.
(30) down from a summit passes through
many such layers, a surveyor could
sight a mirage rather than the peak
itself. To reduce rraction errors, the 解决:1,减少通过经纬仪的光,
Chinese team carried in sea level to 2, 使用天气气球测量温度压力。
(35) within five to twelve miles of Everest’s
summit, decreasing the amount of air
that light passed through on its way to
their theodolites. The Chinese also
launched weather balloons near their
(40) theodolites to measure atmospheric
temperature and pressure changes
to better estimate rraction errors.
Another hurdle is the peak’s shape. 误差2:测量者们的测量点不同。
When surveyors sight the summit.
(45) there is a risk they might not all
measure the same point. In 1975
the Chinese installed the first survey 解决:安装一个红色灯塔。
beacon on Everest, a red rlector
visible through a theodolite for ten
(50) miles, as a rerence point. One 误差3:海平面不平。
more source of error is the uneven-
ness of sea level. The British
assumed that carrying in sea level
would extend an imaginary line from
(55) the shore along Earth’s curve to a
point beneath the Himalaya. In
reality, sea level varies according
to the irregular interior of the planet.
The Chinese used a gravity meter to 解决:用重力计改正误差。
correct for local deviations in sea level.
-------------------------------------------------------------
Q1:It can be inferred from the passage that rraction would be most likely to cause errors in measurements of a mountain’s elevation under which of the following conditions?
A. When there are local variations in sea level
B. When light passes through humid air
C. When theodolites are used relatively far from the mountain peak.
D. When weather balloons indicate low air temperature and pressure.
E. When sea level has been carried in to Within five to twelve miles of the summit.
存在争议,具体请参考 www.aoji.cn
-------------------------------------------------------------
Q2:Which of the following best describes the purpose of the sentence in lines 23-25 (“The Chinese…the British”)?
A. Introduce a dinition
B. Signal a transition in focus
C. Summarize the preceding paragraph
D. Draw a contrast between two different theories.
E. Present information that contradicts the Preceding paragraph.
----------------------------------------------------
Q3:Which of the following is NOT mentioned as a possible source of error in surveying mountain elevation?
A. Mirages
B. Rraction
C. Inaccurate instruments
D. Variations in sea level
E. Uncertainty about the exact point to be Measured
---------------------------------------------------
Q4:The primary purpose of the passage is to
A. provide details about improvements to a process
B. challenge the assumptions underlying a new method
C. criticize the way in which a failed project was carried out
D. call for new methods to solve an existing problem
E. explain the theory behind a new technique
狗主的 原话“第一题和最后一题不一样。第一题也是推论,但是推论的中英两次测量活动异同点。最后一个失忆了…… ”
Q5:主题题。
描述对某项程序(procedure)持续的改进。
Q6:下列哪些情形有可能产生折射。
参考答案:当光线穿透湿气很重的云层时。
Q7:下列那个选项不是文中所提到改进的作法。
参考答案:使用工具的改良。
Q8:目的题:第二段第一句话的作用。第一段在讲英国队和中国队一致的一些作法,第二段才开始讲述中国队的改良作法,有明显的转折 (Chinese team, however, blablabla…)。
参考答案:translates the focus
Q9:还有一题问一下那个选项不是影响测量的准 确性的要素。因为时间来不及仔细看了,
在两个选乡间犹豫了一下,一个是mirage,一个是inaccurate instrument.
Q10:一道问下面哪个会增加R问题
增加和山峰的距离
以上就是3月29日更新的GMAT阅读机经,考生可以适当借鉴,并通过练习来掌握GMAT阅读的解题规律,从而在GMAT考试中发挥出更好的水平。 相关链接:
1.GMAT考试 2012年3月28日GMAT语法机经更新汇总
2.GMAT考试 3月29日更新GMAT阅读机经(七)
3.GMAT考试成功法则之作文篇
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