in addition与in addition to

1 . in addition 此外，另外，还有。如：

I met some friends and other people in addition. 我遇到了几位朋友，还遇到了其它一些人。

You need money and time, in addition, you need diligence. 你需要金钱和时间，此外你还需要努力。

2 . in addition to 除……之外。如：

We play football in addition to basketball. 除了篮球外，我们还踢足球。

In addition to English, he has to study a second foreign language. 除英语外，他还得学第二外语。

In addition to the overcoat you asked for, I bought you a shirt. 除了你要的上衣外，我还给你买了件衬衫。

注：in addition to 中的to为介词，所以后接动词作宾语时要用动名词。如：

In addition to giving me some advice, he gave me some money. 他不仅给我提了些忠告，而且还给了我一些钱。

另外，当主语后跟有in addition to引出的介词短语时，谓语动词仍与其前的主语保持一致。如：

The teacher, in addition to his students, was interested in the book. 老师和他的学生都对这本书感兴趣。