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  3. What is color? Why do some objects look red, others green, still others blue?

What is color? Why do some objects look red, others green, still others blue?

游客2023-10-07  25
问题    What is color? Why do some objects look red, others green, still others blue?
   Color is caused by  (11)  light rays. We see color because objects reflect light. Something that is red reflects  (12)  red light. It reflects a little green or blue light, too, but we do not see it. In the same way, a green object reflects mostly green light. White objects reflect  (13)  of light. Black objects do not reflect any light.
   What happens to the colors of light that are not reflected? They are absorbed by the object. The  (14)  the color, the less light is reflected and the more light is absorbed. Light that is absorbed is  (15)  heat. For this reason, dark-colored clothes are warmer in the sunlight than lighter-colored clothes.
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What is color? Why de some objects look red, others green, still others blue?
   Color is caused by reflected light rays. We see color because objects reflect light. Something that is red reflects mostly red light. It reflects a little green or blue light, too, but we do not see it. In the same way, a green object reflects mostly green light. White objects reflect all colors of light. Black objects do not reflect any light.
   What happens to the colors of light that are not reflected? They are absorbed by the object. The darker the color, the less light is reflected and the more light is absorbed. Light that is absorbed is turned into heat. For this reason, dark-colored clothes are warmer in the sunlight than lighter-colored clothes.
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答案 mostly
解析 该空格中的词是比较常用的，特别是most一词。由于该词在文章中修饰的是动词，需要在其后加“-ly”构成。认真听出该词的读音，并且注意语法结构，不难判断出该题的正确答案。同时，由于该词在句中重复出现多次，根据下文中也可找到答案。
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