你知道常用比较级的句式吗？
一、当A = B 时，是同等比较，常用句式有：
1．用“as +原级+ as + 比较对象”。如：
She is as tall as her mother。她与她的妈妈一样高。
He runs as fast as his father. 他与他的父亲一样跑得快。
2．用“as +形容词+a /an +单数名词+as +比较对象”。如：
She is as good a teacher as her father. 她和她的父亲一样是个好好教师。
3．用“as +many/much +名词”。如：
I have as many apples as you. 我的苹果与你的苹果一样多。
4．用“no +比较级+ than+比较对象”。 表示对两者的否定，意为“和……一样不……”，与“neither…nor…”或“as+相反意义的形容词或副词+as”相当。如：
Tom is no taller than Mike. =Neither Tom nor Mike is tall. =Tom is as short as Mike.
汤姆和迈克都不高(或一样矮)。
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His English is no better than mine.
= Neither his English nor my English is good. = His English is as bad as mine.
他的英语同我的英语一样不好。(即一样差)
二、当A > B 时，是大于比较。
1．用“比较级 + than + 比较对象”。如：
My room is smaller than yours. 我的房间比你的小。
She got there earlier than I did. 她比我到得早。
2．“数词＋名词＋比较级+ than +比较对象”，表示“Ａ比Ｂ......”。如：
Lucy's mother is two years younger than her father.
露茜的妈妈比爸爸小两岁．
His bike is 50 yuan cheaper than hers.
他的自行车比她的便宜５０元钱．
注意：一般来说，比较对象为人称代词时，用主格或宾格均可。但是，当句子中谓语动词为及物动词时，人称代词用主格或宾格意义不同。如：
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I like you better than she (likes you). 我比她更喜欢你。
I like you better than (she likes) him. 我喜欢你胜过喜欢他。
三、当A > B，但B包含A时，是大于比较，则须用other来将A排除出去，常用句式有：
1．用“比较级 + than + any other + 名词单数”。如：
China is larger than any other country in Asia. 中国比其他任何亚洲国家都要大。
2．用“比较级 + than + any of the other + 名词复数”。如：
He is older than any of the other boys in his class. 他比他班上任何同学年纪都大。
3．用“比较级 + than + all the other +名词复数”。如：
He works harder than all the other students in his class. 他比班上其他所有学生都努力。
4．用“比较级 + than + (any of) the others”。如：
I received less money than the others did. 我比别人收到的钱少。
5．用“比较级 + than + the other + 名词复数”。如：
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He is cleverer than the other students in his class. 他比班上其他学生聪明。
6．用“比较级 + than + anyone else”。如：
You know him better than anyone else. 你对他比任何别人都更了解。
四、当A > B，但B不包含A时，是大于比较，常用句式有：
1．用“比较级 + than + any of the + 名词复数”。如：
He is richer than any of the people here. 他比这儿的任何人都有钱。
2．用“比较级 + than + any + 名词单数”。如：
I’m taller than any student of your class. 我比你们班的任何学生都高。
五、当A < B 时，是降级比较，表示前者不如后者，常用句式有：
1．用“not so /as + 原级 + as +比较对象”。如：
I’m not as /so lucky as you. 我不如你那么幸运。
He doesn’t study as /so hard as Mary. 他学习不如玛丽努力。
2．用“less+原级+than+比较对象”。如：
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I am even less lucky than you. 我甚至不如你走运。
He studies less hard than Mary. 他学习不如玛丽努力。
3．用“not +比较级+ than+比较对象”，比较级前加not，表示前者不如后者，与not as…as相当。如：
He is not taller than me.= He is not as tall as me. 他不如我高。
You are not more careful than he is= You are not as careful as he is. 你不如他仔细。
4．用“not more+原级+than+比较对象”。指前后两比较对象虽都具有某种特征，但程度不同，意为“不如、不及”，相当于not so ... as。如：
She is not more clever than he is. = She is not so clever as he is. 她不如他聪明。
This book is not more difficult than that one. =This book is not so difficult as that one.
这本书不如那本书更难。
六、当A = B的几倍时，是倍数比较，常用句式有：
1．用“数字 + times + as + 原级 + as +比较对象”。如：
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Their house is about three times as big as ours. 他们的房子大约有我们的房子三倍大。
2．用“数字 + times + the size / length / depth / height / width + of +比较对象”。如：
Your office is three times the size of ours. 你的办公室是我们办公室的三倍大。
3．用“数字 + times + 比较级 + than + 比较对象”。如：
He runs three times faster than Jack. 他比杰克跑得快三倍。
注：如果指一倍、两倍时，将“数字+times”换成once, twice。如：
This room is twice the length of the other, but much narrower.
这个房间的长度是那个房间的两倍, 但窄得多。
The river is once as wide as that river.这条河是那条河的一倍宽。
七、表示“越来越……”时，是重叠比较，用“比较级 + and + 比较级”。 单音节形容词或副词用“-er+and +-er”；多音节形容词或副词用“more and more…”。如：
Your English is getting better and better. 你的英语越来越好了。
It’s becoming more and more difficult to find a job. 找工作越来越困难了。
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八、表示“越……就越……”时，是累进比较，用“the + 比较级+主语+谓语，the + 比较级+主语+谓语”。表示后者随着前者的变化而变化，前者相当于一个条件句，因此，要用一般现在时代替一般将来时。如：
The younger you are, the easier it is to learn. 年纪越轻，学习越容易。
The more money you make, the more you spend. 你挣的钱越多，花的钱也越多。
九、表示“两者中较/最……的那个人或物”时，是高级比较，在比较级前加定冠词the。用“the+比较级+of the two”。如：
He is the taller of the two. 他是两人中最高的那个。
She was the more promising worker of the two. 她是两人之中最有培养前途的工人。
十、用“more+形容词或副词+than…”，是取舍比较。表示对同一人或物在不同方面进行取舍，意为“与其说……倒不如……”，不论形容词或副词的长短，一律用more…than…。如：
He is more hungry than tired. 与其说他累了，倒不如说他饿了。
He is more witty than wise. 与其说他聪明，不如说他机智。
十一、用“Which do you like better, A or B?”，是选择比较。如：
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Which do you like better, swimming or running? 你比较喜欢哪样，游泳还是跑步？
I like swimming better. 我比较喜欢游泳。
十二、比较级句式，表示最高级含义
1．比较级+than any other+单数名词：表示最高级意义。如：
Mike is more intelligent than any other student in his class.
=Mike is the most intelligent in his class. 马克比他班上任何一个人都聪明。
2．否定词语+比较级：表示最高级含义。如：
Nothing is easier than this.
=This is the easiest thing. 没有比这更简单的了。
3．否定词语+ so…as：表示最高级含义。如：
Nothing is so easy as this. 没有比这更简单的了。
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