在國外，很流行一種男女關系，這種男女關系叫做“Open Relationship”。實際上，在中國也非常popular了。那么，Ken和Debbie同居了3年了，是否繼續進行“Open Relationship”呢？我們來聽聽Nancy說的一番話：

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 說到的“knock her up”是什么意思呢？我們今天就來學習這個新鮮的表述法：knock someone up。To knock someone up means to make a woman pregnant。譯為：使得某人懷孕。我們再來看幾個例句：

1. They say it was Sam who knocked her up.（他們說是Sam使她懷孕的。）

要點解析：it was Sam who knocked her up是強調句式。這樣的強調句式結構為：It+系動詞+被強調部分+who（that）+其余部分。It 沒有實際意義。在這句話中，強調的是主語，主語是人，則關系代詞用who或者that都可以。再如：It was I that （who） met Li Ming at the railway station yesterday.（是我昨天在火車站遇到了小明。）

2. No one would have known about their affair if he hadn't knocked her up.（他要是不使她懷孕的話，誰也不會知道他們倆的曖昧關系。）
要點解析：這句話使用了虛擬語氣，謂語結構是：would have done。它表示對過去事情的假設，是“本來會做什么”的意思，但是實際上沒有做成。再如： I would have told you the story about him, but you were not home. （我本來可以告訴你關于他的故事，但是你不在家。）

要點解析：know about something的意思是“了解某事，知曉某事”。再如：I want to know about this thing now from beginning to end.（現在我想從頭到尾了解這件事。）Have you ever had any heart trouble that you know about?（你知道你得過心臟病嗎？）

Nancy的話語：Either that or Ken knocked her up and now they want to get married before their parents find out. 從這里，可以看出Ken和Debbie的關系不是“Open Relationship”，Ken也是一個有責任感，有擔當的boy。