(四)so 或neither, nor放在句首，表示前面说话的情况也适用于另一个人（物）即"也（也不），如此"，用倒装句。

（1） She is busy doing her homework. So is her brother.

（2） You passed the exam. So did I.

（3） He doesn't like shopping. Neither do i.

（4） He can't speak any foreign language. Nor can his father.

（5） However hard it was raining they went on working.

(六)only所修饰的副词、介词短语或状语从句放在句首，用倒装句。

（1） Only after three operations was she able to walk without sticks.

（2） Only then did we realize that the man was blind.

（3） Only by seizing every minute can we finish it on time.

如果only修饰主语时则不用倒装句。

（4）Only a few young men went to the theatre.

倒装句

一、选择填空:(37题,每题1分)

1.─You like singing and dancing.

　─　　　　 .

　A.So do I　 B.So I do

　C.I do so　 D.do I so