与美国小学生一起学英文第7册 第11期:铜

 　　Copper¹ 铜

　　What is the most useful metal? 最有用的金属是哪个？

　　Copper is one of the most useful metals in people's lives. 铜是人们生活中最有用的一种金属。

　　Copper is found everywhere. 铜无处不在。

　　It delivers electricity very quickly, so every wire is made of copper. 它能非常快速地传导电流，因此电线都是由铜制成的。

　　Bullets², irons, electric stoves and pots also contain copper. 子弹、铁、电炉和罐子里都含铜。

　　Copper is not as expensive as silver or gold. 铜不像银或金那样昂贵。

　　People make cheap accessories³ using copper. 人们用铜来制作廉价的饰品。

　　Because it has a beautiful color. 因为铜有美丽的颜色。

　　Copper is sometimes used to cover the surface of buildings. 所以有时会把它镀在建筑物的表面。

　　Do you know that copper is the first metal people used in history? 你知道铜是人类历史上使用的第一种金属吗？

1 copper   

n.铜；铜币；铜器；adj.铜(制)的；(紫)铜色的

参考例句：

• The students are asked to prove the purity of copper.要求学生们检验铜的纯度。
• Copper is a good medium for the conduction of heat and electricity.铜是热和电的良导体。

2 bullets   

n.弹药；军火

参考例句：

• The bodies of the hostages were found riddled with bullets. 在人质的尸体上发现了很多弹孔。
• The bullets and cannon-balls were flying in all directions. 子弹和炮弹到处乱飞。

3 accessories   

n.附件；附件( accessory的名词复数 )；（衣服的）配饰；从犯；妇女饰品

参考例句：

• a range of furnishings and accessories for the home 各种各样的家居装饰物及配件
• These are indispensable accessories. 这些是不可缺少的附件。 来自《简明英汉词典》