例四
You never know when you might lose your job, your car might breakdown, or you might have unexpected hospital bills.
分析：这是一个复杂句，是when引导的宾语从句，三个简单句作为宾语，你看出来了吗？
例五
I still remember the research that I conducted in that class and the lessons that I learned because she made us work very hard.
分析：because之前的句子是that引导的两个定语从句，分别修饰宾语research 和 宾语 lessons，这两个that是可以省略的哦！而because后引导的是一个原因状语从句
例六
If employees and managers were to simply think things through for a day or two, they could think of all the pros and cons of the decisions more clearly.
分析：前一句是由if引导的条件状语从句（虚拟语气），后一句是主句，并且是一个简单句。两句共同构成主从复合句。
