point 后接 where 引导的定语从句时，point 有时表示具体的“点”（即指位置、地点、地方等），有时表示抽象的“点”（即指时间、时刻、阶段、程度等）。
1. point 表示具体的“点”。如：
Meet me at the point where the two paths cross. 在交叉路口等我。
We reached the point where the river divides in two. 我们到了河流的分岔处。
Let the point where AB cuts CD be called E. 设AB线与CD线的相交点为E。
2. point 表示抽象的“点”：尤其注意 reach / get to the point where…, at the point where等常用搭配。如：
He has reached the point where a change is needed. 他已到了需要改变的地步了。
The project is at a point where the end is in sight. 这个项目到了胜利在望的阶段。
I've reached the point where I'm about ready to retire. 我已到了准备通休的年龄。
I had reached the point where I was earning a good salary. 我已经到挣高薪的阶段了。
It got to the point where I was so ill I was waiting to die. 我已病入膏肓，到了等死的阶段。
She had got to the point where she felt that she could not take any more. 她已经到了忍无可忍的地步。
It got to the point where we could no longer ignore his behavior. 事情发展到这个阶段，我们再也不能忽视他的行为了。
网友的句子中，point 表示抽象意义的“点”（指程度）：
A couple of years ago, film-maker David Bond realised that his children, then aged five and three, were attached to screens to the point where he was able to say “chocolate” into his three-year-old son’s ear without getting a response.
几年前，电影制片人大卫·邦德意识到，他当时5岁和3岁的孩子都迷恋上了屏幕，甚至到了他对着他三岁儿子的耳朵说“巧克力”都没有反应复。
