1道选择题。

Question

1.I have some difficult _______ what he said, because he couldn't express himself clearly.
A.to understand B.understanding C.to know D.know

答案选B。 但不明白为什么选B啊， 选A不行吗? 为什么要加ing而不用to ？
打错了， 应该是difficulty

Answer 1

B

have difficult (in) doing sth
in 常省略。表示“在做....上有困难”

Answer 2

difficult 是形容词，后面要跟名词，只有B才是名词
understanding 是名词，意思是理解，谅解

Answer 3

Have difficulty/be difficult in doing something 固定用法其中in可省

Answer 4

因为understanding是理解的意思嘛（属于动词），而前面有have，所以后面加动词的原形，所以选B啊！！

Answer 5

B

但我觉得那个difficult应该改为名词difficulty才对，have difficulty doing sth....做某事有困难

Answer 6

1. understanding在这里作为名词使用.

2. 请勿形成思维定式: 一定要have sth. to do sth.

3. 就算是have sth. to do sth. 此题的difficult不应该是形容词形式而应该是名词形式的difficulties.

4. 这个题目其实没问题, difficult其实没必要硬改成difficulty.

I have some difficult understanding what he said....中文粗略翻译为: 我对他说的话理解得较为吃力.