英语六级(CET6)考试100条阅读难句解析:sentence21

　　From offering classes that teach students how to legally manipulate contracts, to reinforcing the notion of profit over community interests, Etzioni has seen a lot thats left him shaking his head. (06.12 Passage 2)主干： Etzioni has seen a lot

　　1.句首介词from后接动名词offering作宾语，that引导的从句作classes的定语;逗号后的to也是介词，　　接动名词reinforcing作宾语。这样，from...to...的结构就很对称。

　　2.主句中的宾语是a lot，其后有一个thats...定语从句加以修饰;leave him shaking...中，shaking作补语。译文：从教授学生如何合法地篡改合同到强化把利润放到社团利益之上的观念，Etzioni看到很多令他摇头的地方。