定义 表语从句定义：在一个复合句中，从句作的是主语的表语成分。 A The problem is puzzling. 这个问题令人困惑 主语,连系动词,形容词作表语 The problem is when we can get a pay rise. 问题是什么时候我们可以得到加薪. 主语 连系动词 一个句子作表语---表语从句 B 连 接 表 语 从 句 的 连 接 词 有 ： that, what, who, when, where, which, why,whether,how.whoever，whomever，whichever ，whatever 等 He has become a teacher. 他已经成为一名教师。 He has become what he wanted to be ten years ago. 他已经成为了他 10 年前想成为的。 She has remained there for an hour. 她曾在那里停留了一个小时。 She has remained where I stood yesterday for an hour. 她一直在我昨天站的地方站了一个小时。 His suggestion is good. 他的建议是好的。 His suggestion is that we should stay calm. 他的建议是，我们应该保持冷静。 The question is confusing. 这个问题令人困惑. The question is when he can arrive at the hotel. 问题是，他什么时候可以到达酒店。 Who will travel with me to Beijing tomorrow.谁与我明天将前往北京。 Why he cried yesterday. 昨天他为什么哭。 How I can persuade her to join us in the party. 我怎么能说服她加入我们的派对。 Whether the enemy is marching towards us. 是否敌人正向我们行进. 注意A 表语从句一定要用陈述语序。 False: The question is when can he arrive at the hotel. Right: The question is when he can arrive at the hotel. B 不可以用 if，而用 whether 连接表语从句(as if 例外）。 引导宾语从句时可以互换 if/whether 位于介词后要用 whether 位于句首时要用 whether 引导表语从句，主语从句，同位语从句时要用 whether False: The question is if the enemy is marching towards us. Right: The question is whether the enemy is marching towards us. Right: It looked as if he had understood this question. C 不像宾语从句，在有表语从句的复合句中，主句时态和从句时态可以不一致。 Right: The question is who will...
