强调句
原句：
The city was first built here during the Song Dynasty.
强调地点状语：
It was here that the city was first built during the Song Dynasty.
强调时间状语：
It was during the Song Dynasty that the city was first built here.
强调主语：
It was the city that was first built here during the Song Dynasty.
It + be +被强调部分 + that + 句子（无被强调部分）
不能强调谓语!