【英语时差8,16】蓝鸟为什不蓝？（上）

 One of the loveliest sights an ornithologist¹ runs across is the iridescent² blue found in some birds’ plumage. Sure, cardinals⁴ have red feathers and finches have yellow feathers, but if you ever run across the gleaming, almost metallic-looking blue of an indigo⁵ bunting, you won’t forget it. The colors shimmer⁶ and shine like oil on water. You might be surprised, then, to learn that the feathers which produce such impressive displays are in themselves largely colorless. Take some cardinal³ feathers — after the cardinal is done with them — and grind them up into powder. The powder will still be red. That’s because the color is the result of actual pigment⁷ in the feather. Take those shiny feathers from a bluebird or indigo bunting and grind them up, however, and their color will disappear. Why?

1 ornithologist   

n.鸟类学家

参考例句：

• That area is an ornithologist's paradise.那个地区是鸟类学家的天堂。
• Now I know how an ornithologist feels.现在我知道做为一个鸟类学家的感受了。

2 iridescent   

adj.彩虹色的，闪色的

参考例句：

• The iridescent bubbles were beautiful.这些闪着彩虹般颜色的大气泡很美。
• Male peacocks display their iridescent feathers for prospective female mates.雄性孔雀为了吸引雌性伴侣而展现了他们彩虹色的羽毛。

3 cardinal   

n.(天主教的)红衣主教；adj.首要的，基本的

参考例句：

• This is a matter of cardinal significance.这是非常重要的事。
• The Cardinal coloured with vexation. 红衣主教感到恼火，脸涨得通红。

4 cardinals   

红衣主教( cardinal的名词复数 )； 红衣凤头鸟（见于北美，雄鸟为鲜红色）； 基数

参考例句：

• cardinals in scarlet robes 身披红袍的枢机主教
• A conclave of cardinals was held to elect the new Pope. 红衣主教团举行了秘密会议来选举新教皇。

5 indigo   

n.靛青，靛蓝

参考例句：

• The sky was indigo blue,and a great many stars were shining.天空一片深蓝，闪烁着点点繁星。
• He slipped into an indigo tank.他滑落到蓝靛桶中。

6 shimmer   

v./n.发微光，发闪光；微光

参考例句：

• The room was dark,but there was a shimmer of moonlight at the window.屋子里很黑，但靠近窗户的地方有点微光。
• Nor is there anything more virginal than the shimmer of young foliage.没有什么比新叶的微光更纯洁无瑕了。

7 pigment   

n.天然色素，干粉颜料

参考例句：

• The Romans used natural pigments on their fabrics and walls.古罗马人在织物和墙壁上使用天然颜料。
• Who thought he might know what the skin pigment phenomenon meant.他自认为可能知道皮肤色素出现这种现象到底是怎么回事。