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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。
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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)
[英语语法手册]英语精品--比较级 [vip]\比较级 + and + 比较级\
(后面不可接than从句)可用来表示\越来越\。如：
The days are getting longer and longer.白天越来越长了。
He is becoming more and more interested in sports. 他对运动越来越有兴趣了。
The more the more 的用法 意思是\越…，就越…\。如：
The harder you work，the more you Will learn.你越努力，就越学得多。 The greater the mass of a body，the greater is its inertia.物体的质量越大，它的惯性就越大。
The more you eat，the fatter you get.你吃得越多，长得越胖。 The more，the better.越多越好。 more than和less than
这两个固定词组分别表示\多于\少于\。如：
There are more than three hundred households in this village.这个村子有三百多户人家。
The finished the Work in less than a year.他们不到一年就完成这项工作。
Our country has established diplomatic relations with more than one hundred countries.我国已经和一百多个国家建立了外交关系。
no more than和not more than
no more than的意思是\只不过\，not more than的意思是\不多于\。试比较：
There are no more than ten tickles left. 剩下不到十张票。 (有\票少\的含义)
The experiment was done by not more than 5 persons. 做这个试验的人不到五个。(没有\多\或\少\的含义，只是客观地说明数目)
This room is no bigger than that. 这个房间并不比那个大。 (有\两个房间都不大\的含义)
This room is not bigger than that one.这个房间不比那个大。 (没有\
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两个房间都不大或都不小\的含义)
[注]注意not …. Any more than或no more...than在下面句子中的用法。如：
They cannot do the impossible any more than we can.他们和我们同样不能做不可能的事情。
He is no more diligent than I am.他和我同样不勤奋 no less than和not 1ess than
no less than的意思是\不亚于\，not less than的意思是\不少于\。试比较：
There were no less than a thousand people at the meeting. 到会的有一千人之多。(有\到会人多\的含义)
There were not less than one thousand people at the meeting. 到会的至少有一千人。(没有\到会人多或人少\的含义)
This song is no less popular than that one.这首歌之受欢迎不亚于那首歌。(有\两首歌都受欢迎\的含义)
This song is not less popular than that one.这首歌受欢迎的程度不比那首差。(纯粹比较。不一定有\两首歌都受欢迎\的含义)
All the better和so much the better
这一类的说法都有\因此而更…\的含义。如：
If that is so，all the better.果真如此，那就更好。
If he will come，so much the better.如果他愿意来，那更好。 [英语语法手册]动词 动词概说
1)动词(verb)是表示动作或状态的词。 a)表示动作：swim游泳push推 b)表示状态：have有be是
2)英语动词有时态、语态、语气等形式上的变化。 限定动词和非限定动词
从是否被主语所限定来分，动词有限定动词(finite verb)和非限定动词(nonfinite verb)两大类。
1)限定动词 限定动词用作句子的谓语动词，并被主语所限定，有人称和数的变化。如：
He is a tractor driver.他是一个拖拉机手。
Facts are more eloquent than words.事实胜于雄辩。
We have friends all over the world.我们的朋友遍天下。
An apple falls by the force of gravitation.地心吸力使苹果落地。 2)非限定动词 非限定动词有动词不定式、动名词和分词三种，在句子里都不能单独作谓语动词，故不被主语所限定，没有人称和数的变化。如：
I am pleased to meet you.我很高兴与你相识。(动词不定式)
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Smoking is harmful to the health.吸烟对身体有害。(动名词) I heard them singing the Internationale。我听见他们唱《国际歌》。(分词)
Spoken words are often more powerful than writing.语言往往比文字更有力。(分词)
实义动词、连系动词、情态动词和助动词 从其含义来分，动词有实义动词(notional verb)，连系动词(1ink verb)，情态动词(modal verb)和助动词(auxiliary verb)四类。
1)实义动词 实义动词有完全的词义，并能独立作谓语动词。如： The sun shone brightly this morning.今天早晨阳光灿烂。
He likes to go for a long walk on sundays.他喜欢星期日出去作长距离散步。
We have a big TV set in the club.我们俱乐部有台大电视机。
2)连系动词 连系动词在句中作谓语动词，后面跟表语。英语连系动词有be(是)，seem(似乎)，look(看来)，keep(保持)，become(变成)，get(变得)，grow(变得)，feel(感到)，turn(变得，变成)，appear(显得)，remain(仍旧是)等。如：
It is never too late to mend.改过不嫌晚。 It was a close game.那场球赛比分很接近。
The children in this nursery look very healthy.这个托儿所的孩子看起来都非常健康。
Keep quiet，please!请安静!，
The tape recorder seems all right.这台录音机好像没有毛病。 Later he became a doctor.他后来成为一名医生。
The problem remained unsolved until last year.问题到去年才解决。 [注一]下面句子中的come和go也是连系动词。如：
The old man's dream has come true.这位老人的梦想实现了。 Something has gone wrong with the truck.卡车出毛病了。 [注二]有些连系动词如seem, appear等后面常跟to be。如：
The new text seens to be easy，but actually it is rather difficult.这篇新课文好像很容易，其实相当难。
She appears to be the girl's sister.她似乎是那女孩的姐姐。
3)情态动词 情态动词有can (能)，may (可以，也许)，must(必须)等及其过去式could，might等，表示能力、义务、必要、猜测等说话人的语气或情态。情态动词只能和主要动词一起构成谓语动词。
[注]关于情态动词详见第十一章。
4)助动词 助动词有shall，will，have，be，should，wonld， do等。它们只能和主要动词一起构成各种时态、语态、语气等动词形式，以及否定和疑问等结构中的谓语动词。
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