2) too, either
这两个副词都表示“也”，但too用于肯定句，either用于否定句。例如：
She can dance, and I can dance, too.
I haven’t read the book and my brother hasn’t either.
3) already, yet
already一般用于语肯定句，yet一般用于否定句。例如：
He has already left.
Have you heard from him yet?
He hasn’t answered yet.
4) so, neither
so和neither都可用于倒装句， 但so表示肯定，neither表示否定。
例如：
My brother likes football and so do I.
My brother doesn’t like dancing and neither do I.
3. 形容词和副词的比较级和最高级
(1) 两个人或事物的比较时(不一定每一方只有一个人或一个事物)，用比较
级。
Our teacher is taller than we are.
The boys in her class are taller than the boys in your class.
(2) most 同形容词连用而不用 the,表示 "极,很,非常, 十分"。
It’s most dangerous to be here.
在这儿太危险。
(3) "The+形容词比较级..., the+形容词比较级..."表示 " 越... 就越..."。
The more you study, the more you know.
(4) " 形容词比较级 + and + 形容词比较级 ", 表示 " 越来越... "。
It’s getting hotter and hotter.
(5) 主语+谓语(系动词)+as+形容词原形+as+从句。表示两者对比相同。
This box is as big as mine.
(6) the + 形容词 表示某种人。
He always helps the poor.
(7) 形容词和副词最高级用于三个或三个以上的人和物进行比较。
Shanghai is one of the biggest cities in China.
，我们将会及时处理。
