什么是副词
副词(adverb)修饰动词、形容词和其他副词等，说明时间、地点、程度、方式等概念。如：often往往，here这里，very很，quickly很快地。
副词的构成
1)本身就是副词，如now现在，there那里，rather颇。
2)由形容词加词尾-1y变来，如firmly坚决地，happi1y幸福地。
3)与形容词同形
early adj. 早的 early adv. 早
high adj. 高的 high adv. 高高地
long adj. 长的，长久的long adv. 长久地
副词的种类
副词可分为下列几种：
1)普通副词(ordinary adverb)如：together一起，well好，seriously认真地，slowly慢，carefully小心地。
2)疑问副词(interrogative adverb)如：when何时，where何地，how如何，why为何。
3)关系副词(relative adverb)如：where，when。
4)连接副词(conjunctive adverb)如：then然后，so所以，there{ore所以，however然而，hence所以，thus这样，nevertheless然而，otherwise否则，still可是，仍然。
副词的用法
副词在句中可用作：
1)状语(这是副词在句子中的主要功用)
It is raining hard.雨下得很大。(副词hard作状语，修饰动词is raining。)
Don't drive too fast.车子不要开得太快。(fast是副词，作状语，修饰动词drive，副词too又修饰副词fast。)
He speaks English quite well.他英语讲得相当好。(well修饰动词speaks，quite又修饰副词well。)
This is a fairly useful tool，这是一件相当有用的工具。(fairly修饰形容词useful)
He has always helped his sister with her homework.他一向帮助他妹妹做家庭作业。(always修饰动词has helped)
She often went there.她常到那儿去。(often和there均是副词，修饰动词went。)
Perhaps he will telephone later.也许他以后会打电话来的。(perhaps是副词，用以修饰全句。)
2)表语
Is he up?他起床了没有?
She is out.她出去了。
3)定语
Life here is full of joy.这儿的生活充满了欢乐。(here修饰名词life)
副词的位置
1)修饰动词时，有三种位置。
2)修饰形容词和副词时，须放在被修饰词之前。如：
It is a rather difficult job，这是一件颇为困难的工作。(rather修饰形容词difficult)
He runs very fast.他跑得很快。(very修饰副词fast)
3)副词作定语时，一般放在被修饰的名词之后。如：
The peasants there are busy digging a canal now.那里的农民现在正忙于修水渠。
On my way home，I met groups of Young Pioneers.在回家的路上我遇见成群的少先队员。
副词的比较等级
和形容词同形的副词的形式变化与形容词完全相同。但以词尾-1y结尾的副词(注意early一词的-1y不是副词的词尾)须用more和most。另外，须注意下面例词中well，badly的不规则变化。如：
原级比较级 最高级
hard 努力地harderhardest
fast 快faster fastest
well 好better best
badly 坏 worseworst
early 早 earlier earliest
quickly 快 more quicklymost quickly
happily 快乐地 more happily most happily
副词比较等级的用法
1)副词比较级的用法与形容词比较级相似。如：
David drives faster than anyone I know.大卫开车比我所知道的任何人都要快。
She plays table tennis better than I.她乒乓球打得比我好。(从句中省略了play table tennis)
Mr. Martin usually gets to the office earlier than others.马丁先生到办公室通常比别人早。
They speak less fluently but more correctly than we do.他们讲得不如我们流利，但比我们正确。
2)副词最高级用法，除副词前可以不用the外(用the也可以)，其余与形容词最高级相同。如：
I work fastest when I'm under pressure.我在有压力时工作得最快。
He swims the best in Class One.一班他游泳最好。
比较等级的一些特殊用法
两种不同形式
有几个形容词和副词的比较级和最高级有两种的比较等级不同形式，而且意义也不同。
举例说明：
1)Rome is one of the oldest cities in the world. 罗马是世界上最古老的城市之一。
Her eldest daughter is a school teacher.她大女儿是个教员。
My elder brother is in college. He is two years older than I. 我哥哥在上大学，他比我大两岁。
[注]older，oldest说明人的年纪或事物的年代的久远，但在美国英语里也表示长幼。
2)They reached the place later than we.他们到达那儿比我们晚。
Twenty years later he returned to his home village. 二十年后，他回到自己的家乡。
3)Who spoke last?是谁最后发言的?
What is the latest news about the sports meet?关于运动会最近有什么消息?
as...as；not so. . .as或not as...as
1)表示"相等"用as...as。
2)表示"不相等"用not so...as或not as...as。如：
1)This knife is as sharp as that one.这把刀跟那把一样快。
Bill is as tall as I. 比尔和我一般高。
Is this bag of soyabeans as heavy as that one?这袋大豆跟那袋一样重吗?
You know as well as I do.你和我一样明白。
[注]注意as后面的形容词如作定语，而被定语修饰的名词有不定冠词a时，冠词a须放在形容词之后，如German is as difficult a language as English.(德语和英语一样难学。)。这样的词序也适用于so，如I have never seen so beautiful a place as Guilin before.(我过去从未见过像桂林这样美丽的地方。)
2)tian An Men Square was not so big as it is now.天安门广场过去没有现在这样大。
The Atlantic Ocean is not as big as the Pacific ocean.大西洋没有太平洋大。
表示"几倍于"
用twice (两倍)，three times(三倍)等加as...as..
如：
New York is ten times as big as my home town.纽约有我的家乡十个大。
The output of the paper mill is now three times as high as it was in 1966.这家纸厂的生产比一九六六年增加两倍。
This river is twice as long as that one.这条河比那条河长一倍。
Asia is four times as large as Europe.亚洲比欧洲大三倍。
[注]表示"几倍于"也可以用下面的说法，如：
Three times three is nine.三乘三得九。
He is twice my age.他的年龄比我大一倍。
This lake is four times the size of that one.这个湖有那个湖四个大。
The irrigated area in this province is four times bigger than in l978.这个省的灌溉面积比1978年增加三倍。(four times bigger than = four times as big as)
Our county's agricultural output this year is 5 per cent higher than that of last year.我们县今年农业产量比去年增长百分之五。
表示程度
可用much，far，still，even，a 1itt1e，no，any，a great deal等状语来修饰形容词和副词的比较级。如：
The Yellow River is long，but the Changjiang River is even longer.黄河长，长江更长。
We are much better off now.我们的生活比过去好得多。
She sings far better than the others.她唱得比别人好得多。
Wang is taller than Zhang. Li is still than Wang. 王比张高，李比王还高。
[注一]注意下面的一些说法。如：
I couldn't move a step further，我连一步也走不动了。
The meeting lasted two hours longer than usual.会议比平常多开了两个钟头。
He is a head taller than I.他比我高一个头。(也可以说He is taller than me by a head.)
They got there earlier than we by twenty minutes.他们比我们早二十分钟到达那里。
The students of the university have increased by 100 per cent since l978.
这个大学的学生自一九七八年以来增加了一倍。
Do you want any more? -Yes，give me two more.
你还要吗?一是的，再给我两个。
Have you any more tickets? -Sorry，I have no more.
你还有票吗? －对不起，没有了。
[注二]可用形容词最高级 + possible或imaginable等词来强调语气。如：
I think he is the best possible man for the job.我认为他做这工作最合适。(也可以说the best man possible)
Swimming in winter is the best form of exercise imaginable.冬泳是最好的运动方式。(也可以说the best imaginable form)
