“as…as”的用法.doc

as…as”的用法 “as + 形容词或副词原级 + as…” 意为“和……一样”，表示同级的比较，但要注意第一个 as 为副词，第二个 as 为连词根据比较对象和性质的不同又可以把此种结构分为三种：（一）“ as … as …结构”用于表示不同人或物同一性质的比较，意为“……和……一样……" 例如The tree is as tall as the building(is) ．这棵树和那栋楼一样高注意此结构也常用于形象比喻中： as cool as cucumber 沉着的， as stubborn as a mule 非常顽强的，倔强的， as clear as crystal 非常透明的， as poor as a church mouse 非常贫困的， as busy as a bee 像蜜蜂一样忙碌， as easy as ABC 像 ABC 一样容易， as deep as a well 像井一样深， as light as a feather 像羽毛一样轻， as soft as butter 像黄油一样软这些短语生动活泼，浅显易懂，记住这些短语可以提高学生的英语写作和口语能力。

二）“ as … as …结构”用于表示同一个人或物不同性质的比较，意为“既……又……” 例如：This swimming pool is as wide as it is long.这个游泳池宽度和长度相等三）“ as … as …结构”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……”在否定句中结构是“ so/as…as… ”例如： 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 He cannot run so/as fast as you.他没你跑得快Danny is not so/as wise as he is witty ．丹尼为人风趣，但欠明智需要注意的是： “as + 形容词或副词原级 + as…” 结构的变体形式是“ as + 形容词 + a + 单数名词 + as 或 as + many/much + 名词 + as ”意为“……和……一样…… " 。

例如：I don't want as expensive a car as this. ＝ I don't want a car as expensive as this ．我不要这么贵的汽车This is as good an example as the other is.这个例子和另外一个例子一样好 Tony is as clever a boy as his brother ．。