⑧否定词+比较级
该结构用否定形式表示肯定意义。要掌握该结构的用法，须注意以下几点：
▲该结构多为“can't /couldn't +比较级”的形式
I can't agree with you more.我再同意你的意见不过了。(或：我完全同意你的意见。)
The weather couldn't be worse.天气再糟糕不过了。
He couldn't have done better.他做得再好不过了。
▲用于该结构中的否定词除了not之外，还有no，never，nothing等
This could give her no greater pleasure.这使她再高兴不过了。
There's nothing cheaper.这东西再便宜不过了。
There is no greater love than that of a man who lays down his life for his friends.
为朋友而放弃生命的爱是最伟大的爱。
▲当该结构中的比较级为less时，其意义为“一点也不”
试比较：He couldn't care more.他非常介意。(或：他最关心不过了。)
He couldn't care less.他毫不介意。(或：他最漠不关心了。)
注意：反过来用肯定形式表示否定意义。这种用法主要见于：
▲know better than+不定式。这种结构意为“不至于”
You have a better command of French than to make such mistakes.
你的法语较好，不至于犯这样的错误。
He is more experienced than to do such a thing.
他比较有经验，不至于做这样的事。
▲more than…can。这种句型形式上是肯定，实际上有否定含义
The boys in the street have become very insolent and it is more than flesh and blood can bear.
街上的男孩变得非常无礼,到了人所不能忍受的地步。
The beauty of the place is more than I can describe.
那地方美得无法形容。
⑨倍数表达法
▲A is three(four, etc.)times the size(height, length etc.)of B.
The new building is four times the size(the height)of the old one.
这座新楼是那座旧楼的四倍大(高)/这座新楼比那座旧楼大(高)三倍。
▲A is three(four, etc.)times as big(high, long, etc.)as B.
Asia is four times as large as Europe. 亚洲是欧洲的四倍大/亚洲比欧洲大三倍。
▲A is three (four, etc.)times bigger(higher, longer, etc.)than B.
Your school is three times bigger than ours.你们的学校比我们的学校大三倍。
用times表倍数通常用于三倍以上，两倍可以用twice或double.
3.最高级的用法
①三者或三者以上相比，表示最高程度时，用“the +最高级”的结构表示。这种句式一般常有表示比
较范围的介词短语;
Zhang Hua is the tallest of the three.
He works(the)hardest in his class.
②最高级可被序数词以及much、by far、nearly、almost 、by no means、not quite、not really、nothing like
等词语所修饰;
This hat is by far / much / nearly / almost / not nearly / by no means / not quite / nothing like the biggest.
③表示“最高程度”的形容词，如excellent、extreme、perfect等，没有最高级，也没有比较级。
④形容词最高级修饰作表语或介词宾语的名词、代词时，被修饰的词往往省略;
He is the tallest(boy)in his class.
⑤作状语的副词最高级前可以不加定冠词。
Of all the boys he came(the)earliest.
4.形容词和副词前面使用冠词的情况
①形容词最高级前一般要加定冠词，副词最高级前可不加冠词;
②形容词最高级前有时加不定冠词，或不加冠词，不表比较，表示“非常”;
He is a most clever young policeman.(most=very)
The film is most interesting.(most=very)
③as+形容词+a+单数名词;
This is as good an example as the other is.
④表示两者间“较……的一个”比较级前加the;
who is the older of the tow boys?
⑤在“the + 比较级…，the + 比较级…”结构中;
⑥在same前一般要加the;
⑦What +a/an+形容词+单数可数名词=How+形容词+ a/an+单数可数名词
What an interesting film it is!=How interesting a film it is!
⑧so和such的用法
so + 形容词 / 副词 + that …
so + 形容词 + a(n)+ 单数可数名词 + that …
so + many / much / little / few + 名词 + that …
such + a(n)+ 形容词+单数可数名词 + that …
such + 形容词 + 不可数名词 + that …
such + 形容词 + 复数名词 + that …
下列词组中为什么只能用so不可用such?
so much progress、so many people、so little food、so few apples等。
因为名词受many、much、little、few等表示“多或少”意义的词修饰。
下列这句中such用得对不对?(对)。为什么?
These are such little boys that they can’t dress themselves.
因为little在这儿表示“小”，而不是表示“少”的意思。
下列so的用法是错误的：so difficult problems, so hot weather
为什么?因为problems是复数，weather是不可数名词。
⑧有些形容词前加the 成为名词。如the poor、the rich 等。
5.由as/so组成的形容词或副词短语
①as much as + 不可数名词：多达
Each stone weighs as much as fifteen tons.
②as many as + 可数名词：多达
I have as a many as sixteen reference books.
③as early as：早在
As early as the twelfth century the English began to invade the island.
④as far as：远到;就……而知(论)
We might go as far as (走到)the church and back.
As far as I know(就我所知)，he has been there before.
⑤may (might, could)as well：不妨、不如
Then you might as well stay with us here.
⑥as … as can be：到了最……的程度，极其
They are as unreliable as they can be.他们极其不可信。
⑦as … as one can：尽其所能
He began to run, as fast as he could.
⑧as … as possible：尽可能
Just get them to finish up as quickly as possible.
6.more /less than及其相关结构
第一类
①more than+具体数字=over：多于、超过……
He spoke English more than two years.(两年多)
more than+名词/动词/形容词/副词：不仅仅
China Daily is more than a newspaper and it can also help us learn English.
②not more than：不超过……，顶多……=at most
There were not more than 70 women in the store then.(不足70个女性)
③no more than：仅仅，只不过
The theater was no more than a painted barn.
这戏院只不过是漆了油漆的库房而已(没什么大不了的)。
④less than：少于、不足……
Their car broke down where they drove less than five miles.(不到五英里)
less than+名词/形容词：仅仅
He is less than pleased to have visitors.
⑤not less than：……以上，至少……=at least
He has not less than 2oo dollars.(至少200美元)
⑥no less than：不会少于……，与……一样，简直就……
It is no less than robbery to ask me for so much.
要我这么多钱，简直跟抢劫没有两样。
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