【解析】【分析】句意：直到半夜实验后他才回家。not until的强调句必须写成it was/is not until +陈述语序。所以选C。

【点评】考查强调句，本题涉及not until的强调句型。

46．—Have you seen the film Under the Hawthorn Tree?

—Of course, I have. It was in our village it was made.

A. that

B. where

C. when

D. which

【答案】A

【解析】【分析】句意：你是否看过《山楂树之恋》这部电影？——当然看过，这部电影

是在自己的村庄拍摄的。本句是强调句，被强调的部分是地点状语“in our village”。故选A。

【点评】考查强调句型，掌握其结构“It is/was +被强调部分+that/who+句子的其它部分”。

47．It was only __________he reached school ___________he realized that it was Sunday. A. when; did B. when; that C. that; when D. that; which

【答案】 B

【解析】【分析】句意：只有当他到达学校的时候，他才意识到那是星期天。强调句的结构：it was／is+被强调部分+that+其他。本题中强调的是时间状语从句，由when引导。故

答案为B。

【点评】考查时间状语从句和强调句式，掌握强调句型的结构。

48．Do you have any idea computer plays so important a part in our daily life?

A. how is it that

B. what is it that

C. how it is that

D. what it is that

【答案】 C

【解析】【分析】考查名词性从句和强调句式。句意：你知道电脑怎样在我们的日常生活

中扮演如此重要的角色吗？idea后面是how引导的同位语从句，并且对how进行强调，故

答案为C。

【点评】注意名词性从句that和what引导词的不同，以及强调句的疑问句句式。

49．It wasn't until Monday night ______ we were told that Unit 5 would be excluded（排除）.

A. since

B. when

C. that

D. before

【答案】 C

【解析】【分析】句意：直到星期一晚上我们才被告诉第5单元被排除。此处是not...until

的强调句型，故答案为C。

【点评】考查强调句型。本题涉及not...until的强调句型的应用。

50．It was because of the bad weather ______ the football match had to be put off.

A. so

B. so that

C. why

D. that