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.

4) 倍数+ as + adj. + as　<=> 倍数+ than + of

This bridge is three times as long as that one.

This bridge is three times the length of that one.

Your room is twice as large as mine.

Your room is twice the size of mine.

10. 比较级形容词或副词 + than

You are taller than I.

They lights in your room are as bright as those in mine.

注意：

1)要避免重复使用比较级。

(错) He is more cleverer than his brother.

(对) He is more clever than his brother.

(对) He is clever than his brother.

2)要避免将主语含在比较对象中。

(错) China is larger that any country in Asia.

(对) China is larger than any other countries in Asia.

3)要注意对应句型，遵循前后一致的原则。

The population of Shanghai is larger than that of Beijing.

It is easier to make a plan than to carry it out.

4)要注意冠词的使用，后有名词的时候，前面才有可能有名词。

比较：Which is large, Canada or Australia?

Which is the larger country, Canada or Australia?

She is taller than her two sisters.

She is the taller of the two sisters.

I like you as well.

I also went there.

11可修饰比较级的词

1)a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等

2)还可以用表示倍数的词或度量名词作修饰语。

3)以上词(除by far)外，必须置于比较级形容词或副词的前面。