Passage One
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As one works with color in a practical or experimental way, one is impressed by two apparently unrelated facts. Color as seen is a mobile changeable thing depending to a large extent on the relationship of the color to other colores seen simultaneously. It is not fixed in its relation to the direct stimulus which creates it. On the other hand, the properties of surfaces that give rise to color do not seem to change greatly under a wide variety of illumination colors, usually (but not always) looking much the same in artificial light as in daylight. Both of these effects seem to the due in large part to the mechanism of color adaptation mentioned earlier. When the eye is fixed on a colored area, there is an immediate readjustment of the sensitivity of the eye to color in and around the area viewed. This A. the eye’s adaptation to color B. the properties of colored surfaces C. the effect of changes in color intensity D. experiments on colored objects [单项选择]Many plant varieties used in industrially developed nations to improve cultivated crops come from less-developed nations. No compensation is paid on the grounds that the plants used are "the common heritage of humanity." Such reasoning is, however, flawed. After all, no one suggests that coal, oil, and ores should be extracted without payment.
Which of the following best describes an aspect of the method used by the author in the argument above A. The author proceeds from a number of specific observations to a tentative generalization. B. The author applies to the case under discussion facts about phenomena assumed to be similar in some relevant respect. C. A position is strengthened by showing that the opposite of that position would have logically absurd consequences. D. A line of reasoning is called into question on the grounds that it confuses cause and effect in a causal relation. E. (E) An argument is analyzed by separating statements of fact from individual value judgments. [单项选择]What is this speech about
A. A lecture. B. A notice. C. An ad. [单项选择]Language varieties that are appropriate for use in particular speech situations such as formal and informal situations are called
A. gender varieties. B. education varieties. C. register varieties. D. age varieties. [填空题]
Vacancy Offers receive a further information on working for us overseas, please do not hesitate to contact us on 020 8675 8982. [单项选择] TEXT D
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