在雅思口语考试中，分裂句 Cleft sentence，是以it为引导词的强调句型。句型是这样的：

　　It is/was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其他部分。

　　例如说 It was Jane that/who called this morning.

　　那为什么在口语答题中需要用到分裂句呢？

　　那是因为分裂句可以起到突出强调表达重点的效果，保持句子平衡，使答题的逻辑性更强，清晰易懂，也更符合老外的思维习惯。当然，还有就是更能体现语法结构的多样性。

　　其他几种形式的分裂结构，童鞋们也可以去尝试使用在答题中。

　　·What 引导的分裂句：

　　What he wanted to buy was a BMW.

　　What we now need are actions rather than words.

　　What we enjoyed most is the brilliant music in the ballet performance.

　　·All 引导的分裂句：

　　All he wanted to buy was a BMW.

　　All they need is love and support.

　　All I want in life is to be safe and healthy.

　　·推论类：

　　It is not that he loves her. It's just that he has a way with her that is different.

　　It's not that I wanna buy everything, it's just that I would like to keep up with the latest trends.

　　·If - because类：

　　If he wants to be an actor, it's because he wants to be famous.

　　If she cuts back on dinner,  it's because she wants to impress her boyfriend.