Question

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

A. more light B. less light

C. more colour D. less colour

3.In summer ________ make people feel cool.

A. dark-coloured clothes B. red-coloured clothes

C. green-coloured clothes D. light-coloured clothes

 

Answer 1

1.A

2.A

3.D

【解析】

試題分析：短文大意：顏色是由反射光形成的。我們能看到顏色，因為大部分的東西反射光。一些光被反射，一些被吸收變成熱。顏色越深，反射的光越少。穿深色衣服比淺色的衣服溫暖。

1.第二段第二句We see colour because most of the things reflect light.可知我們能看到顏色是因為大部分的東西反射光，所以該選A。

2.第三段第二句The darker the colour is, the less light is reflected, the more light is taken in可知顏色越深，反射的光越少，而吸收的光越多，所以該選A。

3.第二段中If something reflects all light, it is white.可知白色可以反射各種光，因此在夏天穿白色衣服會讓人感覺涼爽，所以該選D。

考點：科普類閱讀。