问：
show an interest in用法
答：
show an interest in是表示"对...感兴趣"的固定用法。
它的用法如下:
• show + an interest + in + 几орм/thing
例句:
He shows an interest in sports.
他对体育感兴趣。
We should show an interest in what our children like.
我们应该对我们的子女喜欢什么感兴趣。
They show little interest in politics.
他们对政治不感兴趣。
• show + (little/much/great) interest + in + 几orm/thing
例句:
The children show great interest in learning.
这些孩子们学习上很感兴趣。
His students show little interest in his lectures.
他的学生对他的讲座没有多大兴趣。
• not + show + much interest + in + 几orm/thing
例句:
He does not show much interest in his study.
他不太对学习感兴趣。
• start/begin to show an interest in + 几orm/thing
例句:
When she was five, she began to show an interest in drawing.
她五岁时开始对画画感兴趣了。
希望以上解释能满足您的需求。如有疑问,欢迎继续提问。