in addition 与 in addition to 的用法
■in addition 此外，另外，还有。如：
In addition, they do not match very much. 除此之外，他们两人并不十分般配。
We met some friends and other people in addition. 我们遇见几位朋友，还遇见其他一些人
■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。
其中的to为介词，所以后接动词作宾语时要用动名词。如：
In addition to giving a general introduction to computers, the course also provides practical experience. 课程除了大致介绍电脑知识外，还提供实际操作的机会。
■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 tohis students, was interested in the book. 老师和他的学生都对这本书感兴趣。