区分helpful和careful的含义 初中英语知识学习

根据I think it is a good way to study English by watching English movies.可知，看英语电影对听力有帮助，helpful符合题意。题中短语it is a good way to do sth.做什么事的好方法;watch English movies看英语电影;improve one’s listening提高某人听力。