题目内容
阅读下列短文, 从所给的四个选项中, 选出最佳答案。
What is color? Why do some things look red, others green, others blue?
Color is caused by reflected (反射) light rays. We see color because objects reflect light. Something that is red reflects mostly red 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 is, the less light is reflected and the more light is taken in. Light that is absorbed is turned into heat. For this reason, dark-colored clothes are warmer in the sunlight than lighter-colored clothes.
1. Color is ________.
[ ]
A. the object itself
B. your sense of sight
C. the light around the object
D. reflected light
2. The more light an object reflects, the ________ the object's color is.
[ ]
A. light B. dark
C. lighter D. blacker
3. Which of the following is untrue?
[ ]
A. Red objects reflect red light.
B. Green objects reflect green light.
C. White objects reflect all light.
D. Black objects reflect black light.
4. Which of the following gets hot slowest if put in the sunlight?
[ ]
A. coal B. gold
C. copper D. silver
5. If you want to be warm, you should ___________.
[ ]
A. wear black clothes
B. wear more clothes
C. wear light colored clothes
D.wear white clothes that reflect all colors of light