Question

英语语法问题！！！

But speech has to be triggered, and this depends on interaction between the mother and the child, _____ the mother realizes the cues and signals in the child's crying, smiling,
A when B why C where D which
答案是where 为什么是where啊 ，这是个什么从句

Answer 1

答案where 是正确的。where 在本句中作关系副词引起一个非限制性定语从句，它等于in interaction between the mother and the child（在母亲和孩子互动之间），在定语从句中作地点状语。

Answer 2

But speech has to be triggered, and this depends on interaction between the mother and the child where the mother realizes the cues and signals in the child crying , smiling.

意思是：

但是语言是要被触发的，这取决于母亲和孩子之间的发生的互动，（在这种情况下）母亲在孩子哭泣，微笑时意识到所给的暗示和信号。
where 引导定语从句， 修饰 interaction 这种情况。

Answer 3

where在这个句子当中，不是定语从句。而是地点状语从句。在妈妈能够认识到的地方。

Answer 4

这是定语从句。
举个例子I know the place where you went yesterday.
分析：where在定语从句中作为关系副词，相当于是一个描述动作发生地点的副词结构，如果went后面有to的话，相当于介词后加了一个副词，这个是不合理的，比如你不会说I go to there而会说I go there是一个道理。

Answer 5

But speech has to be triggered, and this depends on (interaction 先行词) between the mother and the child, where(引导的定语从句,等同于in which) the mother realizes the cues and signals in the child's crying, smiling.
语言需要激发，而这取决于母亲和孩子之间的互动，在互动当中，母亲识别孩子的牙牙学语声和笑声哭声中的暗示和信号。