本句使用“as+形容詞（原級）+as”結構

He is as tall as his father.

他和他父親一樣高。

拓展 平級比較

（1）用as…as,not…as/so…as,the same as,such…as引導。

Henry is a worker as good as Peter(is).

=Henry is as good a workeras Peter(is)

=Henry is such a good worker as Peter(is).

Henry和Peter一樣都是好工人。

It is generally believed that teaching is as much an art as it is a science.

人們普遍認為，教學是一門科學，同時也是一門藝術。

（2）as+形容詞+as+數量詞=數量詞+形容詞。

The building is as tall as 100 meters.

=The building is100 meters tall.

這幢樓房有100米高。