I find watching English movies frustrating because people speak too quickly.为什么要用frustrating?
问题描述：
I find watching English movies frustrating because people speak too quickly.为什么要用frustrating?
答
frustrating是形容某事令人感到沮丧，frustrated是形容人自身情绪低落沮丧，修饰的对象不一样，一个是事情，一个是人，，原句是形容watching English movies,是一件事，故用furastrating
答
I find watching English movies frustrating because people speak too quickly.为什么要用frustrating?
因为find+动名词短语做宾语+frustrating形容词“令人沮丧的”做宾语补足语
答
frustrating这里是用于补充说明watching English movies,所以使用ing形式；
这个句子可以变成：
I find watching English movies (is) frustrating because people speak too quickly.
这样更有助于你理解.
如果是说我看了电影后的感受应该使用frustrated
I feel frustrated after watching English movies because people speak too quickly.