There are two ways to create colors in a photograph. One method, called additive, starts with three basic colors and adds them together to produce some other color. The second method, called subtractive, starts with white light (a mixture of all colors in the spectrum) and, by taking away some or all other colors, leaves the one desired.
In the additive method, separate colored lights combine to produce various other colors. The three additive primary colors are green, red and blue (each providing about one third of the wavelengths in the total spectrum). Mixed in varying proportions, they can produce all colors. Green and red light mix to produce yellow; red and blue light mix to produce magenta; green and blue mix to produce cyan. When equal parts of all three of these primary colored beams of light overlap, the mixture appears white to the eye.
In the subtractive process colors are produced when dye (as in paint or color photographic materials) absorbs some wavelengths and so passes on only part of the spectrum. The subtractive primaries are cyan (a bluish green), magenta (a purplish pink) and yellow; these additive primaries or dyes that absorb red, green and blue wavelengths respectively, thus subtracting them from white light. These dye colors are the complementary colors to the three additive primaries of red, green, and blue. Properly combined, the subtractive primaries can absorb all colors of light, producing black. But, mixed in varying proportions, they too can produce any color in the spectrum.
Whether a particular color is obtained by adding colored lights together or by subtracting some light from the total spectrum. The result looks the same to the eye. The additive process was employed for early color photography. But the subtractive method, while requiring complex chemical techniques, has turned out to be more practical and is the basis of all modern color films.
1.Which of the following is closest in meaning to the phrase “passes on” as used in paragraph 3?
2.Which of the following is NOT a pair of additive and subtractive prim ary colors?
3.What explanation is given for the use of the subtractive method in modern color films?
4.How is the passage organized?
问题1选项
A.Judges.
B.Lets through.
C.Dies.
D.Goes over.
问题2选项
A.Yellow and blue.
B.Magenta and green.
C.Black and white.
D.Cyan and red.
问题3选项
A.Subtractive colors are more realistic.
B.The subtractive process is more efficient.
C.Additive chemical techniques are too complex.
D.The additive process is still being developed.
问题4选项
A.The reasons for a choice are explained in depth.
B.A general statement is justified by a series of historical examples.
C.Two basic causes are compared.
D.Related processes are described one after the other.
第1题:
1.【选项释义】
1. Which of the following is closest in meaning to the phrase “passes on” as used in paragraph 3? 1. 下面哪一个词的意思最接近第3段中使用的短语“pass on”？
A. Judges. A. 判断。
B. Lets through. B. 允许通行。
C. Dies. C. 死亡。
D. Goes over. D. 仔细检查。
【考查点】词义推测题。
【解题思路】根据第三段第一句“在减色法中，当染料吸收某些波长，只让部分光从光谱上pass on（passes on only part of the spectrum），所以产生了色彩”，从pass on后面跟的spectrum（光谱），结合pass本身表示“通过”的意思，可推测，pass on表示“穿过，通过”。B项“允许通行”符合题意。故该题选择B项正确。
【干扰项排除】A项“判断”、C项“死亡”、D项“仔细检查”，根据解题思路可知，与原文不符，曲解原文。
第2题:
2.【选项释义】
2. Which of the following is NOT a pair of additive and subtractive primary colors? 2. 下列哪一个不是加色和减色的一对原色？
A. Yellow and blue. A. 黄色和蓝色。
B. Magenta and green. B. 品红色和绿色。
C. Black and white. C. 黑色和白色。
D. Cyan and red. D. 青色和红色。
【考查点】事实细节题。
【解题思路】根据第二段第二句“加色的三种原色（additive primary colors）是绿色、红色和蓝色”和第三段第二句“减色法三原色（subtractive primaries）是青色（一种蓝绿色）、品红（一种紫红色）和黄色”，从中可知，加色法的三原色为红绿蓝，减色法的三原色为青色、品红和黄色。没有黑色和白色，所以选项C错误，但符合题意。故该题选择C项正确。
【干扰项排除】A项“黄色和蓝色”、B项“品红色和绿色”和D项“青色和红色”由解题思路可知，这三项都是加色法或减色法的原色，属于反向干扰。
第3题:
3.【选项释义】
3. What explanation is given for the use of the subtractive method in modern color films? 3. 如何解释减色法在现代彩色电影中的应用？
A. Subtractive colors are more realistic. A. 减色法更真实。
B. The subtractive process is more efficient. B. 减色法效率更高。
C. Additive chemical techniques are too complex. C. 加色化学工艺太复杂。
D. The additive process is still being developed. D. 加色法仍在开发中。
【考查点】事实细节题。
【解题思路】根据关键词modern color films定位至最后一段的最后一句“但减色法（the subtractive method）虽然需要复杂的化学技术，却更实用，是所有现代彩色电影的基础（has turned out to be more practical and is the basis of all modern color films）”，从中可知，减色法更加实用，是现代彩色电影的基础。由此推断，该题选择B项“减色法更有效率”符合题意。
【干扰项排除】
A项“减色法更现实”和D项“加色法仍然在开发”文中没有提到，无中生有；
C项“加色化学工艺太复杂”，根据解题思路可知，文中只提到减色法的化学技术很复杂，并没有提到关于加色法方面的，该项曲解原文。
第4题:
4.【选项释义】
4. How is the passage organized? 4. 这篇文章的结构是如何组织的？
A. The reasons for a choice are explained in depth. A. 对选择的原因进行了深入的解释。
B. A general statement is justified by a series of historical examples. B. 一系列的历史例子证明了这一般性的陈述是正确的。
C. Two basic causes are compared. C. 比较了两种效果。
D. Related processes are described one after the other. D. 对相关过程的逐一描述。
【考查点】主旨大意题。
【解题思路】分析文章结构可知，第一段首先提出创造颜色的两种办法，即加色法和减色法，中间两段则分别对这两种方法做具体阐述，最后一段总结，比较这两种创造颜色的方法中哪一种更实用。综上所述，我们可以知道文章形成了一个很明显的对比效果，所以C项“比较了两种效果”符合题意。
【干扰项排除】
A项“对选择的原因进行深入的解释”和B项“通过一系列的历史例子证明一个一般性的陈述”不符合文章结构，曲解原文；
D项“对相关过程的逐一描述”只在原文中间两段有体现，以偏概全。
