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GRE阅读题目解析:遥感信息技术

2017-02-06 18:27:58来源:网络

  P4

  1

  The term "remote sensing" refers to the techniques of measurement and interpretation of phenomena from a distance.

  “遥感” 这个词涉及远距离测量及解读信息的技术。

  2

  Prior to the mid-1960's the interpretation of film images was the primary means for remote sensing of the Earth's geologic features.

  1960 年代中期以前,地质学特征的遥感主要是通过对胶片上图像的解读。

  3

  With the development of the optomechanical scanner, scientists began to construct digital multispectral images using data beyond the sensitivity range of visible light photography.

  随着光学机械扫描仪的发展,科学家开始用超越可见光摄影敏感范围的数据,构建多光谱数码图像。

  4

  These images are constructed by mechanically aligning pictorial representations of such phenomena as the reflection of light waves outside the visible spectrum, the refraction of radio waves, and the daily changes in temperature in areas on the Earth's surface.

  这些图像的构建,要通过对一些现象进行机械校准,像不可见光的反射,无线电波的折射,以及该区域内地表温度的日常变化。

  5

  The advantage of digital over photographic imaging is evident: the resulting numerical data are precisely known, and digital data are not subject to the vagaries of difficult-to-control chemical processing.

  数码图像相较于胶片感光成像的优势显而易见:由大量数据产生的结果更精确,而且数据不会受制于各种难以掌控的化学步骤。

  8. It can be inferred from the passage that a major disadvantage of photographic imaging in geologic mapping is that such photography

  (A) cannot be used at night

  (B) cannot focus on the details of a geologic area

  (C) must be chemically processed

  (D) is always enhanced by digital reconstruction

  (E) cannot reflect changes over extended periods of time

  选 C

  细节题。

  问传统办法的 major disadvantage 其实等于问新技术的 advantage,回到句 5:

  The advantage of digital over photographic imaging is evident: the resulting numerical data are precisely known, and digital data are not subject to the vagaries of difficult-to-control chemical processing.

  细节题是不是可以不读文章直接用关键字回溯文段来节省时间?

  我个人觉得不能,因为很多细节题的问法是相对隐蔽的,不读懂文段大意,定位经常可能不准,一个稍微精致的干扰就能让人中招。而这种方法之所以听起来不错,因为它和所有事后诸葛一样。所以,老实点,不要想取巧了。

  以上就是新东方在线GER频道为你带来的GRE阅读题目解析:遥感信息技术,更多精彩敬请关注新东方在线GRE频道。

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