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    判断  阅读下面的材料，判断下列句子是否符合短文内容。符合的涂T，不符合的涂F。

        （T=True, F = False)

    What is color? Why do some of the things around us look red, some green, others blue?

    Colors are really made by reflected(反射) light. We can see colors because most of the things reflect light. Something is red, for it reflects most of the red light. In the same way, if something is green, it reflects most of the green light. If something reflects all light, it is white. If it doesn't reflect any light, it is black.

         Some light is reflected. But the other light is taken in and turns into heat. The darker the color is, the less light is reflected, and the more light is taken in. For this reason, dark-colored clothes are warmer in the sun than light-colored clothes.

    41. Colors are made by reflected light

    42. Something looks white because it reflects all kinds of light.

    43. In the dark we can't see anything because all the things don't reflect any light

    44. When the other light is taken in, it will be reflected in the end.

    45. In the sun, the warmest clothes must be light-colored.

    TTTFF

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    判断，阅读下面的材料，判断句子是否符合短文内容，正确的用“T”表示，错误的用“F”表示，文章未提到的写N

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    　　The scientists say teenagers should be far from high volume(音量), including mobile phones' noise．A study says“High volume and long listening time can cause hearing problems”They think if young people listen at more than 89 clecibels(分贝)every day, they'll lose their hearing in five years．A scientist said“So many young people often use personal music players and mobile phone at a high voice．I'm afraid that they may be unknowingly losing their hearing．”

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    (1)

    A person will become deaf in 5 years if he or she listens to a MP3 player every day．

    (　　)

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    (3)

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    Scientists advise us to turn off over MP3 players．

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    MP3 players are very expensive．

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    【小题3】In the dark we can't see anything because all the things don't reflect any light
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