there are many organizations to help the deaf and blind ,请问里面的to 是什么成分,或者启一个什么作用,及为什么要加这样一个to

问题描述:

there are many organizations to help the deaf and blind ,请问里面的to 是什么成分,或者启一个什么
作用,及为什么要加这样一个to

做定语,起修饰作用,to help还可以改成helping。

there are many organizations to help the deaf and blind
首先这是个there be结构
there are many organizations句子主干
to help the deaf and blind 修饰 many organizations 某种程度上可以说是其的宾语补足语
同时表示目的 为了帮助盲人和耳聋的人们才设立这样的一些组织的

to help the deaf and blind,构成动词不定式(to + 动词原形)短语,此短语做organizations的定语