一句英语句子有疑问他发现那些孩子很难教He found out that those children were dif
2个回答
1.此句型是英语中常用的主动表示被动结构：
sb/sth be + 形容词 + to + 及物动词原形 / 不及物动词原形 + 介词.
2.如：English is difficult to learn.英语很难学.
He is hard to work with.很难与他共事.
3.上述句型可以转化为：
It be + 形容词 + to do sth.
如：English is difficult to learn.= It's difficult to learn English.
英语很难学.
He is hard to work with.= It is hard to work with him.
很难与他共事.
4.所以此句是正确的：
Those children were difficult to teach.
=It was difficult to teach those children.
那些孩子很难教.
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