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  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 colours 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.

  Some of the light is reflected and some is taken in(吸收)and turned into heat(热能). The darker the colour is, the less light is reflected, the more light is taken in. So dark-coloured clothes are warmer in the sun than light-coloured clothes.

(1) When something reflects light, we can ________.

[  ]

Asee its colour

Bsee its heat

Cnot see its colour

Dsee nothing

(2) Something looks white because it reflects ________.

[  ]

Asome light

Bno light

Call light

Dmost light

(3) The dark-coloured clothes are warm because ________ is taken in.

[  ]

Amore light

Bless light

Cmore colour

Dless colour

(4) In summer ________ make people feel cool.

[  ]

Adark-coloured clothes

Bred-coloured clothes

Cgreen-coloured clothes

Dlight-coloured clothes

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

[  ]

ADark Colour

BColour

CHeat

DClothes

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