题目
5. It was not until the early 18th century when the significance of the event was realized.A. wasB. whenC. significanceD. was realized
5. It was not until the early 18th century when the significance of the event was realized.
A. was
B. when
C. significance
D. was realized
题目解答
答案
B. when
解析
本题考查强调句型的结构。关键点在于识别句子中的强调结构，并判断连接词的正确性。强调句型的基本形式为：
$It\ is/was\ +\ 被强调部分\ +\ that\ +\ 其他成分$
当强调时间状语从句时，需注意连接词必须使用that，而非when。
原句为强调句型，强调时间状语从句not until the early 18th century。根据强调句规则：
- 连接词错误：原句使用了
when，但强调句中连接从句时必须用that。 - 其他部分正确：主句
the significance of the event was realized的时态和用词均无误。