名师串讲综合英语（二）(珍藏版)9

32.both

表示一个和另一个两者都……，用复数动词。

Both sides of the street are decorated with colourful lights.

She has two brothers,Both work in the city.

both...and 连接同类的语法结构（名词、动词、形容词、介词短语等），表示强调。

He has both the knowledge and capability to do this job.

Both she and her husband were very pleased with the girl.

33.either

(1)表示两者中的任何一个，用单数动词。

You may take either of the roads to get there.

He could write with either hand.

(2)表示两边。

You can see a lot of trees on either side of the street.

Many conversations are a kind of competition that rarely leads to discovery on either side.

(3)作副词，表示也，用于否定句。

A little bit of exercise won’t do you any harm,either.

He didn’t go to the meeting and she didn’t turn up,either.

(4)和or连用，连接相同的语法结构，表示或是……或是，不是……就是，既……又，既不……又不，它所带的动词在数上与or后面的名词或代词保持一致。

Either you or Dick is responsible for it.

Either he or his brothers have  to clean the room.

34.neither

(1)作代词，表示两者都不……，后面的动词多用单数形式。

Neither of the books is of any help to me.

If you run after two hares,you’ll catch neither.

(2)作副词，表示也不。用于句首，句子的主语与谓语必须倒装。

—I have never been here before.

—Neither have I.

He cannot speak English,and neither can he read it.

(3)与nor连用，连接相同的语法结构，表示既不……也不。它所带的动词在数上与nor后面的名词或代词保持一致。

Neither his friends nor he knows anything about it.

I’m afraid I have neither the time nor the money to help you.

Negation