【问】 As well as learning to swim he has been taking Spanish lessons this summer.

语法书上说，as well as为并列连词，但我看不出在上句中它所并列的是哪两个成分。

【答】 用并列连词来解释上句中的as well as确实有困难。现代语言学家是用介词来解释aswell as的上述用法的。其意义相当于besides，in addition to。类例：

1. As well as printing the books，he publishes them.

He publishes the books，as well as printing them. (CGEL)。

除了印刷这些书之外，他还把它们出版发行了。

2. As well as visiting Niagara Falls，we spent a day in Toronto.

除了参观尼亚加拉大瀑布之外，我们还在多伦多度过了一天。

3. He spent all his money，as well as wasting his time. (CEU)

他不仅浪费了时间，还花光了他所有的钱。