1、as much as修饰不可数名词 ，as many as 修饰可数名词。如：
I would like to watch football games as much as I can. 我尽可能地看很多的足球赛。
I would like to watch as many football games as I can. 我尽可能地看很多的足球赛。
2、as much as 表示程度，as many as表示“数目”上的比较（多达...）。如：
He doesn't think of you as much as he ought to. 他没有像本应该的那样对你好。
In the countries of Africa, there are as many as 700 languages. 非洲国家的语言多达700种。
扩展资料：
在as...as...比较结构（否定时可以用so...as...）中，第二个as 是关系代词，引导定语从句。在表示比较意义的同时，as 在从句中充当成分，作从句的宾语或主语。这时的as 不是从属连词。例如：
1、You may take as many chairs as you need. 你需要多少椅子就拿走多少椅子。（as作need的宾语）
2、My parents don’t so much money as I want. 我父母没有我需要的那么多钱。（as作want的宾语）
1、as many as的主语是可数名词 其谓语动词用单数，as much as的主语是不可是名词 其谓语动词用复数。
2、much 还表示程度,如 I love you as much as I love myself.或者,I like American food as much as I like Chinese food.
3、as much as常用在“雨量、水量、时间量、重量、钱数、价格”等方面,表示总量和单位量的大小；as many as 常用在人或物的具体数量前,侧重于具体数目,意思是“和……一样多”,“多达……”
例如：Along Amazon rain is plentiful,often as much as seventy inches every year.
亚马逊河流域雨水充足,年降水量常达70英寸之多.
The hightest price of a jacket in the shop is as much as 5,000 yuan.
该店夹克的最高价达5000元.
扩展资料
一、as much as 的用法 ：
1、as much as 看似简单，但在实际运用中却相当复杂，不仅 用法颇多，而且许多含有as much as 结构的句子往往不好理解（尤其是不好翻译成中文），对许多同学来说都是一个难点。为帮助同学们攻克这一难点，本文拟对此作一个全面的总结和分析。
2、表示数量
表示数量，意为“……之多”“多达”
如： In fact it cost me as much as 100 dollars. 事实上，它整整花了我100美元。（一笔钱）
We walked as much as 50 miles that day. 那天我们整整走了50英里。 （一段距离）
She stayed in for as much as 20 days last month。 —Is it hot up there？ 那上面热吗？ —Of course,as much as 45 degrees. 当然热，高达45度。（一个温度）
The speed can vary by as much as 15 percent (一段变化范围). 其速度的差别可高达15％。
3、注：如上例所示，as much as 用于表示具体的数量时，其后接的可能是可数名词，但由于它们意义上仍然为不可数，故用 as much as，不用 as many as。
二、、“as(否定句中可用so)＋adj．／adv．＋as…”，其基本意思为“……和……一样”。但在实际应用中，此结构在不同的语境中含义差异较大。
1、表示不同人或物同一性质的比较，意为“……和……一样……"。
The tree is as tall as the building(is)．
这棵树和那栋楼一样高。
Michael is as bright as George(is)．
迈克尔和乔治一样聪明。
2、表示同一个人或物不同性质的比较，意为“既……又……
Alice works as happily as(she)plays(happily)．
艾丽丝愉快地工作，尽情地玩。
Danny is not so wise as he is witty．
丹尼为人风趣，但欠明智。
3、用于表示两个人或物不同性质的比较，表示程度相同或相当，意为“……而……”。
He was as handsome as his wife was beautiful．
他长得非常英俊，他的妻子也长得非常漂亮。
He was as experienced as his brother was green．
他经验丰富，而他兄弟却涉世未深。
本回答被网友采纳as much as的主语是不可数名词
例如：Along Amazon rain is plentiful, often as much as seventy inches every year.
亚马逊河流域雨水充足，年降水量常达70英寸之多。
The hightest price of a jacket in the shop is as much as 5,000 yuan.
该店夹克的最高价达5000元。
In the countries of Africa, there are as many as 700 languages.
非洲国家的语言多达700种。
The kings of Egypt built as many as 80 pyramids.
埃及国王们建造的金字塔多达80座。本回答被提问者采纳