看了词典,grasp作为理解的意思,是及物动词。但是有的词典有例句,it's a difficult concept for kids to grasp.这是当怎么讲?
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It's a difficult concept for kids to grasp.
for kids to grasp这是个动词不定式短语,作定语,意思上的宾语是concept
这是一个孩子很难理解的概念。追问
您可以说详细点吗?还有,grasp后面不是应该加个名词或者代词吗?你的解释我大概明白,但是又不太明白。
追答动词不定式作定语,加个逻辑主语(叫做:动词不定式的复合结构),然后,不定式的意思上的宾语是所修饰的名词。
简单例子:
There is a lot of work to do. 有很多要做的工作。to do定语,意思上的宾语是work
There is a lot of work for you to do.有很多要你做的工作。to do前有个逻辑主语for you,意思上的宾语是work
concept本质是主语,但是意思上是宾语,是grasp的宾语,所以grasp做及物动词,后面没宾语,前面的形式上的主语做了宾语。这个句子按照主谓宾是kids difficultly grasp the concept。这样就是及物动词加宾语了。那个句子相当于一个主语从意思上变成了及物动词的宾语了吧?
concept本质是主语,但是意思上是grasp的宾语,所以grasp做及物动词,后面没宾语,前面的形式上的主语做了宾语。按照主谓宾是kids difficultly grasp the concept。这样就是及物动词加宾语了。相当于一个主语从意思上变成了及物动词的宾语了吧?我造个句it's she for them to follow=they follow her.
追答concept本质是主语
这里并没有形式主语,而是it作主语,concept是表语
结构是
It's a concept
这是一个概念
It’s a difficult concept for kids to grasp.
意思是:
对孩子们来说,掌握/理解这个概念很困难。to grasp. 以动词不定式做真实主语。