Question

句型转换（共10个空，每空0.5分，满分5分）

1. Going to sleep early is important for the teenagers.

  __________  _________  _________  for the teenagers to go to sleep early.

2. You should read more English books.

  You  ________  _________ read more English books.

3.He had to stay up late last night because he hadn’t recited NCE.(改为否定句)

  He ________  _________  _________ stay up late last night because he had recited NCE.

4. If it doesn’t rain tomorrow, we will climb Baiyun Hills.

  We will climb Baiyun Hills _________ it _________ tomorrow.

Answer

1.It is important

2.ought to

3.didn’t have to

4.unless… rains

【解析】

试题分析：

1.句意：早睡是对年轻人很重要的。这里是it is+形容词+for sb to do ，it是形式主语，真正的主语是to go to sleep early ，故用It is important。

2.句意：你应该多读英语书。这里should= ought to “应该”，故用ought to。

3.句意：他不得不熬夜因为他没有背下来新概念英语。因为谓语动词是had to，变否定句的时候应该用助动词didn’t 来帮助构成，故用didn’t have to。

4.句意：如果明天不下雨，我们将去登云台山。这里if …not = unless ；unless引导的是条件从句不能用将来时而用一般现在时，故用unless… rains。

考点：句型转换。