题目内容
What colour is your backpack? It's ________.
[ ]
A．an orange
B．a orange
C．the orange
D．orange
答案：D
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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 and turned into heat. 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________.
[
]|
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-coloured clothes |
B ．red-coloured clothes |
|
C ．green-coloured clothes |
D ．light-coloured clothes |
(5)What's the best title of this passage?
[
]|
A ．Dark Colou |
B ．Colour |
C ．Heat |
D ．Clothes |