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 darker the colour is, the less light is reflected, the more light is taken in. So dark-coloured(深色的)clothes are warmer in the sun than light-coloured clothes.
小题1:When something reflects light, we can_______.
A．see its colour
B．see its heat
C．not see its colour
D．see nothing小题2:In summer _____make people feel cool.
A．dark-clolured clothes
B．red-coloured clothes
C．green-coloured clothes
D．light-coloured clothes小题3:(Originally created) Why does the author use a question at the beginning of this passage?
A．The author doesn’t has a knowledge of colour.
B．The author shows off his knowledge of colour.
C．To ask the readers to answer this question.
D．To draw the readers’ interest in reading this passage.小题4:(Originally created) In which of the following you can find this passage?
A. A travel book B.A history book
C. A popular science magazine C, An entertainment newspaper.
小题5:What’s the best title(题目)of this passage(短文)?
A．Dark colour
B．Colour
C．Heat
D．Clothes
