与美国小学生一起学英文第5册 第3期:脊柱

 　　Backbone¹ 脊柱

　　The backbone is one of the bones in the human body. 脊柱是人身体里的骨头之一。

　　It supports people's backs. 它支撑着人的背部。

　　Without a backbone, people cannot stand up, sit down or walk. 要是没有脊柱，人就不能站立、坐下和行走。

　　It is one of the most important bones in the human body. 它是人身体里最重要的骨头之一。

　　It is also called a "spine²". 它也被称为“脊椎”。

　　Do you know how a backbone is formed? 你知道脊柱是怎样构成的吗？

　　It is made of many small bones. 它由很多小块骨头组成。

　　There are usually 29 small bones in the backbone. 脊柱里通常有29块小骨头。

1 backbone   

n.脊骨，脊柱，骨干；刚毅，骨气

参考例句：

• The Chinese people have backbone.中国人民有骨气。
• The backbone is an articulate structure.脊椎骨是一种关节相连的结构。

2 spine   

n.脊柱，脊椎；(动植物的)刺；书脊

参考例句：

• He broke his spine in a fall from a horse.他从马上跌下摔断了脊梁骨。
• His spine developed a slight curve.他的脊柱有点弯曲。