—_______ the children.

 

　　A. It is B. They are

 

　　C. That is D. There are

 

　　2. It is _______ he often fails in exams ______ makes his parents worried about him.

 

　　A. what; that B. that; what

 

　　C. that; that D. / ; that

 

　　3. It is the protection for the trees _______ really matters, rather than how many trees are planted.

 

　　A. what B. that

 

　　C. 不填 D. which

 

　　4. It is _____ my father worked _____ I work now.

 

　　A. where, that B. where, when

 

　　C. that, where D. that, that

 

　　5. Was _____ that I saw last night at the concert?

 

　　A. it you B. not you

 

　　C. you D. that you

 

　　6. It was ten o’clock _____ he came back home.

 

　　A. when B. that

 

　　C. since D. after

 

　　7. It was not until he came back _____ he knew the police were looking for him.

 

　　A. which B. since

 

　　C. that D. before

 

　　【答案与解析】

 

　　1. 选A。为强调句型It is the children who are making so much noise 之省略。

 

　　2. 选C。为强调句型，被强调成分为主语从句that he often fails in exams。

 

　　3. 选B。为强调句型，句意为“真正重要的在于保护树，而不在于种多少树”。

 

　　4. 选A，整个句子为it was … that … 格式的强调句式，即第二空要填that;第一空填where，where my father worked 为地点状语从句，为强调句的被强调部分。句意为“我现在我父亲曾经工作过的地方工作”。

 

　　5. 选A，为强调句的一般疑问句形式，其相应陈述句为 It was you that I saw …

 

　　6. 选A。when 表示“当……的时候”，句首的 it 表示时间，全句意为“当他回到家时，时间是10点钟。”

 

　　7. 选C。为He didn’t know the police were looking for him until he came back 之强调形式。注意，not … until …的强调句式通常为It was not until … that … 的形式。