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

    Colors are really made by reflected light(反射光线). We see colors because most of the things reflect light. Something is red, because it reflects（反射）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.

    Some of the light is reflected and some is taken in (吸收) and turned into heat. The darker the color is, the less light is reflected and the more light is taken in. So dark-colored (深色的) clothes are warmer in the sun than light-colored (浅色的) clothes.

(  ) 31.When something reflects light, we can ______________.

        A. see its color       B. see its heat     C. not see its color    D. see nothing

(  )32. Something looks white because it reflects ________________.

        A. some light        B. no light       C. all light        D. less light

(  )33. The dark-colored clothes are warm because ___________ is taken in.

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

(  )34. In summer ______________ clothes make people feel cool.

       A. dark-colored   B. red-colored   C. green-colored  D. light-colored

(  )35. Which is the best title (题目) of this passage

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

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