2017年pets2adj和adv的比较

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　　形容词和副词的比较等级

　　比较等级分为原级、比较级和最高级。

1.原级用法

① 表示被比较双方在某一方面相等或相同时, 用as + adj / adv + as结构, 表示“…和…一样” 。如：

a. Xiao Li is as tall as his sister.

b. It is as cold today as it was yesterday.

c. There are as many seats in this hall as in that hall.

② 表示被比较双方在某一方面不相等或不同时, 用not as / so + adj / adv + as, 表示“…和…不一样”

a. Xiao Li is not as / so tall as his brother.

b. It is not so / as cold today as yesterday.

c. There are not so / as many seats in this hall as in that hall.

2.比较级的用法

① 对方比较，表示一方超过另一方时，用“比较级 + than”的结构表示。如：

This picture is more beautiful than that one.

② 表示一方不及另一方时，用“less + 原级 + than”的结构表示。如：

This room is less beautiful than that one.

③ 表示一方超过另一方的程度或数量时，可在比较级前加表示程度的状语，如even、a lot、a bit、a little、still、much、far、yet、by fay等修饰。如：

He works even harder than before.

注意：英语的比较级前如无even、still或yet等时，译成汉语时可用“较”或“…一些”或不译出，一般不可有“更”。如：

She is better than she was yesterday.

Please come earlier tomorrow.

另注意：by far通常用于强调最高级。用于比较级时，一般放在比较级的后面，如在前面，应在二者中间加“the”。如：

He is taller by far than his brother.

He is by far the taller of the two brothers.

④ 表示一方随另一方的程度而变化时，用“the + 比较级(主语 + 谓语)，the + 比较级(主语 + 谓语)”的结构(意为“越……越……”)。如：

The harder he works, the happier he feels.

⑤ 不与其他事物相比，表示本身程度的`改变时，用“比较级 + and + 比较级”的结构。如：

The weather is getting colder and colder.

The girl becomes more and more beautiful.

⑥ 某些以-ior结尾的形容词进行比较时，用to代替than。这些词有inferior(劣等的，次的)、superior(较好的，优于……)、junior(资历较浅的)、senior(资格较老的)、prior(在……之前)等。

He is superior to Mr. Zhang in chemistry.