一、倒裝句的意義
1. 適應一定的語法結構的需要，主要是指疑問句句型結構的需要。
e.g. May I come in?
Was the People's Liberation Army founded in 1927?
2. 為了強調某一部分，而把這部分放到句首，構成倒裝。
e.g. Never have I been late for school this term.
So early did he come to school that no other students came.
二、倒裝的使用情況
1. 在“there be”結構裡，there是引導詞，主語在be後。
e.g. There is a box on the table.
2. 在疑問句中。
e.g. Is she singing in the classroom?
What does your mother do?
3. 在here， there等副詞開頭的某些句子裡(要用一般現在時態)。如果主語是人稱代詞，主語和主要動詞的詞序不變。(完全倒裝)
e.g. There goes the bell.
Here is an apple for you.
There she comes.
4. 重複倒裝句型，用在以so， nor， neither開頭，表示謂語所述的`情況也適用於另一個人或一事物的肯定或否定句中。so用於肯定句，表示“也一樣”“也這樣”;nor， neither用於否定句，表示“同樣也不，也不這樣”。
e.g. I am watching TV. So is she.
My parents didn't watch TV last night. Neither (Nor) did I.
5. 直接引語的全部或一部分放在句首時，主句中的主謂也常直接倒裝。(完全倒裝)
e.g. "Very well，" said the French student.
"Bring me two eggs and a cup of tea， please." said he.
6. 在以never， little， hardly， not only， few， not， seldom等否定副詞開頭的句子中，採用部分倒裝。如不放在句首就不要倒裝。
e.g. Little did he say at the meeting.
Never shall I forget the day when I joined the Army.
比較：I shall never forget the day when I joined the Army.
7. 用於以only所修飾的副詞、介詞短語或狀語從句的句子中。
