1、In addition to 整个词组相当于一个介词，所以to的后面要接宾语。
2、例句：1、In addition to their own food, they must carry a load of up to eighty pounds.
除了自己的食物以外，他们还必须扛80磅重的东西。
3、例句：2、In addition to his salary, he earned a lot from royalties.
工资之外, 他又挣了不少版税。
4、例句：3、In addition to native plants,this garden contains numerous trees and flowers from overseas.
除了当地的植物之外，这座花园还有无数来自海外的花草树木。
5、In addition to 后接动词作宾语时要用动名词。
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。
6、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（就远原则）。
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。
7、而 In addition 相当于副词，通常放在从句的句首，后面接完整的句子。
8、例句：This garden has the best collection of native plants.In addition,it contains numerous trees and flowers from overseas.
这座花园有当地植物的最佳珍藏。另外，它还有无数来自海外的花草树木。
