Question

句型轉換（共10個空，每空0.5分，滿分5分）
【小題1】 Going to sleep early is important for the teenagers.
__________  _________  _________  for the teenagers to go to sleep early.
【小題2】 You should read more English books.
You  ________  _________ read more English books.
【小題3】He had to stay up late last night because he hadn’t recited NCE.(改為否定句)
He ________  _________  _________ stay up late last night because he had recited NCE.
【小題4】 If it doesn’t rain tomorrow, we will climb Baiyun Hills.
We will climb Baiyun Hills _________ it _________ tomorrow.

Answer 1

【小題1】It is important 
【小題2】ought to
【小題3】didn’t have to
【小題4】unless… rains

解析試題分析：
【小題1】句意：早睡是對年輕人很重要的。這里是it is+形容詞+for sb to do ，it是形式主語，真正的主語是to go to sleep early ，故用It is important。 
【小題2】句意：你應該多讀英語書。這里should=" ought" to “應該”，故用ought to。
【小題3】句意：他不得不熬夜因為他沒有背下來新概念英語。因為謂語動詞是had to，變否定句的時候應該用助動詞didn’t 來幫助構成，故用didn’t have to。
【小題4】句意：如果明天不下雨，我們將去登云臺山。這里if …not =" unless" ；unless引導的是條件從句不能用將來時而用一般現在時，故用unless… rains。
考點：句型轉換。