6 兼有两种形式的副词

1) close与closely

close意思是"近"; closely 意思是"仔细地"

He is sitting close to me.

Watch him closely.

2)　late 与lately

late意思是"晚"; lately 意思是"最近"

You have come too late.

What have you been doing lately?

3)　deep与deeply

deep意思是"深"，表示空间深度;deeply时常表示感情上的深度，"深深地"

He pushed the stick deep into the mud.

Even father was deeply moved by the film.

4)high与highly

high表示空间高度;highly表示程度，相当于much

The plane was flying high.

I think highly of your opinion.

5)　wide与widely

wide表示空间宽度;widely意思是"广泛地"，"在许多地方"

He opened the door wide.

English is widely used in the world.

6)　free与freely

free的意思是"免费";freely 的意思是"无限制地"

You can eat free in my restaurant whenever you like.

You may speak freely; say what you like.

7某些副词在用法上的区别

(1) already, yet, still

already表示某事物已经发生，主要用于肯定句;yet表示期待某事发生，主要用于否定句和疑问句;still表示某事还在进行，主要用于肯定句和疑问句，有时也可用于否定句。如：

We've already watched that film.

I haven't finished my homework yet.

He still works until late every night.

(2) too, as well, also, either

too, as well和 also用于肯定句和疑问句，too和as well多用于口语，一般放在句末，而also多用于书面语，一般放在句中与动词连用。either用于否定句和否定的疑问句，往往放在句末。如：He went there too.

He didn't go there either.

8 形容词与副词的比较级

⑴ 规则变化

变化规则 example

1.一般在词尾直接加-er或-est Tall-taller-tallest, long-longer-longest

2.以不发音的字母e 结尾的单词在词尾直接加-r 或- st Nice-nicer-nicest, large-larger-largest

3.以辅音字母+ 结尾的词，把 y变为i ，再加er 或 est Heavy-heavier-heaviest

Happy-happier-happiest

4.重读闭音节，末尾只有一个辅音字母，双写这个辅音字母，再加er 或 est Big-bigger-biggest

Fat-fatter-fattest

5.部分双音节词和多音节词分别在原级前加more 构成比较级和most 构成最高级 Slowly-more slowly-most slowly

Beautiful-more beautiful-most beautiful

⑵ 不规则变化

原级 比较级 最高级

Good/well better best

Bad/ill/badly worse Worst

Many/much more most

little less least

far Farther/further Farther/further

old Older/elder Oldest/eldest

其用法与形容词相似，只是副词最高级前可省略定冠词。如：

Of all the boys he sings (the) most beautifully.

We must work harder.

9. as + 形容词或副词原级 + as

1)在否定句或疑问句中可用so… as。

He cannot run so/as fast as you.

2)当as… as 中间有名词时采用以下格式。

as +形容词+ a +单数名词

as + many/much +名词

This is as good an example as the other is.

I can carry as much paper as you can..

3)用表示倍数的词或其他程度副词做修饰语时，放在as的前面。

This room is twice as big as that one.

Your room is the same size as mine.