摘要:22.A.white B.green C.blue

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

Colors are real made by reflected(反射)light.We see color because most of the things reflect light.In the same way,if something is green,it reflect most of the green light.If something reflects all light,it is white.If doesn't reflect 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 warm in the sun than light-colored clothes.

1.When something reflects light,we can ________.

    A.see its color                                             B.see its heat

    C.not see its color                                  D.see nothing   

2.Something looks white because  it reflects _________________.

    A.some light             B.not light            C.all light            D.most light

3.The dark-colored,clothes are warm  because _______ is taken in.

    A.more light           B.less light               C.more color           D.less color

4.In summer __________ make  people feel cool.

    A.dark-colored clothes                                 B.red-colored clothes

    C.green-colored clothes                                D.light-colored clothes

5.What's the best title(标题)of this passage(短文)?

    A.Dark color           B.Color                C.Heat                 D.Clothes

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