Parents are taught to understand how important education is to their children's fiture
这里的to understand是什么成分，宾语还是状语，我看有的文章把整个are taught to understand作为谓语，请问可以这样理解吗，谢谢大家了
还有就是 the teacher asked us to help him 这里的to help him是宾语补足语好不容易学了这个，一变被动，we are asked to help him，这里的to help him又变成了什么成分呢，谢谢大家了