在国外，很流行一种男女关系，这种男女关系叫做“Open Relationship”。实际上，在中国也非常popular了。那么，Ken和Debbie同居了3年了，是否继续进行“Open Relationship”呢？我们来听听Nancy说的一番话：

Nancy: Either that or Ken knocked her up and now they want to get married before their parents find out. But you didn't hear it from me!

Nancy 说到的“knock her up”是什么意思呢？我们今天就来学习这个新鲜的表述法：knock someone up。To knock someone up means to make a woman pregnant。译为：使得某人怀孕。我们再来看几个例句：

1. They say it was Sam who knocked her up.（他们说是Sam使她怀孕的。）

要点解析：it was Sam who knocked her up是强调句式。这样的强调句式结构为：It+系动词+被强调部分+who（that）+其余部分。It 没有实际意义。在这句话中，强调的是主语，主语是人，则关系代词用who或者that都可以。再如：It was I that （who） met Li Ming at the railway station yesterday.（是我昨天在火车站遇到了小明。）

2. No one would have known about their affair if he hadn't knocked her up.（他要是不使她怀孕的话，谁也不会知道他们俩的暧昧关系。）
要点解析：这句话使用了虚拟语气，谓语结构是：would have done。它表示对过去事情的假设，是“本来会做什么”的意思，但是实际上没有做成。再如： I would have told you the story about him, but you were not home. （我本来可以告诉你关于他的故事，但是你不在家。）

要点解析：know about something的意思是“了解某事，知晓某事”。再如：I want to know about this thing now from beginning to end.（现在我想从头到尾了解这件事。）Have you ever had any heart trouble that you know about?（你知道你得过心脏病吗？）

Nancy的话语：Either that or Ken knocked her up and now they want to get married before their parents find out. 从这里，可以看出Ken和Debbie的关系不是“Open Relationship”，Ken也是一个有责任感，有担当的boy。