Section_ⅧGrammar

　　单元语法项目(一)--强调结构：倒装句和分裂句"It"

　　语法图解

　　探究发现

　　①Seldom has drumming caused such conflict.

　　②Had they known their neighbour was a drummer, they wouldn't have moved into the building.

　　③Neither could they relax nor read a book without plugging their ears.

　　④It was only after careful consideration that we gave Yang Ming a warning.

　　⑤No sooner had they moved in than the noise began and rare did they get a full night's sleep.

　　[我的发现]

　　(1)句①③⑤是否定词置于句首，引起的部分倒装。

　　(2)句②是省略"If"将"had"提前，还原②句为：If they had known ...

　　(3)句④是it用于强调结构中。

　　一、倒装

　　倒装是将语句中的主语、谓语、宾语、状语等颠倒顺序的一种语法现象，常常具有强调语气，在英语中比较常见，也是高考中常考的一种语法。根据倒装的结构可以分为完全倒装和部分倒装。

　　(一)完全倒装

　　1．there be句型属于完全倒装结构，该句型中be可换为appear, lie, live, stand, remain, exist等表示存在意义的动词。

　　There is a bench under the big tree.

　　那棵大树下有一个长凳。

　　It is said that there lived a god called Lv Dongbin in ancient time.

　　据说古代有一位神仙叫吕洞宾。

2．here, there等方位副词及now, then等时间副词位于句首，句子的谓语动词为come, go,