english is easy to learn,不定式为什么不用被动
5个回答

因为这是不定式主动表被动的

english和动词learn是主动关系

①不定式用主动形式表被动意义的情况：

动词不定式作定语时,当不定式动作的发出者是句子主语、宾语或者说话的人时,不定式用主动形式表被动意义.如：

Can you give me a book to read?

I can’t go with you now because I have masses of work to do.

反射不定式中,即“sb/sth +be +adj/n + to do.” 结构中,不定式用主动形式表被动意义.如：

English is easy to learn.

Peter is a person to get on well with.

②动名词用主动形式表被动意义的情况：

（需要）need(require, want, demand)doing = need(require, want, demand )to be done

（值得）deserve doing =deserve to be done , be worth doing.(=be worthy to be done / be worthy of being done)

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