eg: ①Mike is tall.
This room is as big as that one.
This lesson isn\'t as interesting as lesson Three.
Tom doesn\'t run so fast as Jack.
②Which is better, this one or that one?
My sister writes more carefully than my brother.
③Who is the tallest, Jack, John or Tom?
He is the most careful in our class.
Changjiang River is the longest river in China.
④Spring is coming. It\'s getting warmer and warmer.
The barder he studied, the more knowledge he got.
⑤形容词副词比较级和最高级的构成
a、直接 + er / + est
b、以e结尾的 + er / + est
c、以辅音字母 + y结尾的变y为i + er / + est
d、重读闭音节以一个辅音字母结尾的, 双写 + er / + est
e、不规则变化
f、多音节和少数双音节的词, 在词前加more或most
(2)易混的副词辨析:
①already, 多用于肯定句, yet多用于否定句或疑问句中
②too, also, either都表示“也”
too和also都用于肯定句中, too常放在句尾, also常放在句中, either用于否定句的句尾。

6、介词
(1)表示时间的介词in, on, at
in——用于较长一段时间, 星期, 月份, 季节, 年, 朝代世纪或非特指的早、午、晚等。
on——具体某一天或具体某一个早、午、晚。
at——在某一点时间或某个瞬间。
eg: in 1988, in the 21st century, in winter, in March, in the moring, on Saturday evening, on the May seventh, on a windy night, on the afternoon, of October 31st, at eight o\'clock, at night, at noon, at the end of, at this moment, at this time, at the age of
(2)in与after表示“以后”时的区别
in——表示以现在为起点的“以后”, 常用于将来时态中。
after——常用于一般过去时态中, 表示在过去某个时间之后。
eg: We\'ll come back in two weeks.我们将在两周后回来。
They came back after two weeks.两周以后, 他们回来了。
(3)ago与before表示“在……以前”时的区别
ago——表示从现在算起的“以前”, 常常是“一段时间 + ago”
before——表示以过去为起点的“以前”时, 常常是“一段时间 + before”, 如果是:”“before + 一点时间”, 则只表示在某一点以前。
eg: He went to the library 2 hours ago.
He said he had gone to the library 2 hours before.
They will start before eight o\'clock tomorrow morning.
I went to bed before nine yesterday evening.
(4)for与during
for + 一段时间常表示“持续了一段时间”, 而during则表示在……期间
eg: He has been in Beijing for 3 years.
I was in Beijing during last summer.
(5)in与at表示方位时
at——与小的地点连用, 有“在某一点”的含义。
in——与大的地方连用有“在…范围之内”的含义。
He was lost at the station.
The twins were born in a big city.
(6)over, above与on表示“在……上”的区别。
over——指没有接触面的正上方, 反义词是under。
above——指没有接触面的上方, 在高一些的位置, 反义词是below。
on——指有接触面的, 在……的表面上。
The plane is above the clouds.
The bridge is over the river.
The cup is on the table.
(7)熟练掌握介词与动词、名词、形容词搭配构成的词组, 另外还要注意, 介词的后边要跟名词作它的宾语, 如果是动词, 则要变为动名词(doing)的形式。
如: She is good at singing.
I\'m good at English.

7、连词
(1)掌握连词的含义与用法
and(和, 并), but(但是), or(否则, 或者), so(所以, 于是), when(当……的时候), either…or(或者……或者, 不是……就是), neither…nor(既不……也不……), so…that(如此……以致于……)

8、动词