阅读理解。

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

     Colours are really made by reflected (反射) light. We see colour 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 of the light is reflected and some is taken in (吸收) and turned into (变成)heat (热能).The darder

the colour is, the less light is reflected, the more light is taken in. So dard-coloured (深色的) clothes are

warmer in the sun than light-coloured clothes.

1. When something reflects light, we can _______. 　　

A. see its colour 　　

B. see its heat. 　　

C. not see its colour 　　

D. see nothing

2. Something looks white because it reflects______. 　　

A. some light 　　

B. no light 　　

C. all light

D. most light

3. The dark-coloured clothes are warm because ______ is taken in. 　　

A. more light 　　

B. less light 　　

C. more colour 　　

D. less colour

4. In summer _____ make people feel cool. 　　

A. dark-clolured clothes 　　

B. red-coloured clothes 　　

C. green-coloured clothes 　　

D. light-coloured clothes

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

A. Dark colour 　　

B. Colour 　　

C. Heat 　　

D. Clothes