What is color? Why do some of the things around us look red, some green, others blue?
Colors are really made by deflected (反射) light. We see color because most of the things reflect 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 of the light is reflected and some is taken in (吸引) and turned into (变成) heat (热能).The darker the color is, the less light is reflected, the more light is taken in. So dark-colored clothes are warmer in the sun than light-colored clothes.
1.When something reflects light, we can _____.
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A．see its color |
B．see its heat |
C．not see its color |
D．see nothing |
2.Something looks white because it reflects _____.
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A．some light |
B．no light |
C．all light |
D．most light |
3.the dark-colored clothes are warm because ____ is taken in.
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A．more light |
B．less light |
C．more color |
D．less color |
4.In summer ______ make people feel cool.
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A．dark-colored clothes |
B．red-colored clothes |
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C．green-colored clothes |
D．light-colored clothes |
5.What’s the best title(标题)of this passage( 短文 )?
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A．Dark color |
B．Color |
C．Heat |
D．Clothes |
Richard found work in a big office after he had finished college. He liked to use his (1)____and was good (2)_____ his work. So he was often paid more than his workmates and he worked (3)______. But something was wrong with the young man one month. He couldn't fall (4)____ at night. So he was always (5)____ in the daytime and often made mistakes. He had to go to a hospital. The (6)______ looked him over and (7)_____ him to buy some highly effective sleeping pills(高效安眠药). He took them (8)_______ the went to bed. Soon after that he went to (9)_____. Richard (10)_______ in the morning, he had a look at the (11)_____ on the wall. It was a quarter to seven. He got up and went to work after (12)____ . As soon as he went in the office, he said to the head of the office, "Good morning, Mr. Clarke! I've(13)_______ had a good sleep like last night's. And I'm feeling (14)_______better now!" "Skunk(混蛋)!"the head (15)_____ loudly.”We've looked for you for two days! I wanted you to do something important, but it's too late now!"
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Many boys and girls are made _____ what they’re not _____.
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A．to do, interested |
B．to do, interested in |
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C．do, interested in |
D．doing, interested |
I can’t wait the present box .
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A．open |
B．to open |
C．opening |
D．opened |
They go out their way to make me at home .
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A．in; feel |
B．of; to feel |
C．on; feel |
D．of; feel |
of them the south of China . They live on rice .
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A．Most ; most |
B．Most; mostly |
C．Mostly ; most |
D．Mostly ;almost |
