原级
形容词的本来形式就是形容词的原级。用原级进行比较时可以使用下面两种结构：
1. 表示比较的双方相等，用”as…as”结构，表示“前者像后者一样”，即
A + be + as + 形容词原级+ as + B.
< John is as tall as his brother.
we made you2. 表示比较的双方不相等，用”not as…as”结构，表示“前者不如后者”，即
A + be + not as + 形容词原级+ as + B.
< John is not as tall as his brother.
比较级
当把一个人或物同另外一个人或物比较时，就需要用到形容词比较级。其结构是：
A + be + 形容词比较级+ than + B.
< Jackei is taller than Alex, but Alex is heavier than Jackei
最高级
三者或者三者以上的人或物进行比较时，需要使用形容词的最高级。其结构是：
A + be + the 形容词最高级+ of / in + 比较范围.
(Note: 形容词最高级前面要加定冠词 the)
< Jackei is the tallest in our class. or
Jackei is the tallest of all the students.
形容词不同级别的变化
1. 规则形容词的变化
2.不规则形容词的变化
补充
<
1. Have you got any chocolate?
I haven’t got much.
I’ve got more than you have.
I’ve got the most.
2. Have you got any chocolate? I’ve got very little.
I’ve got less than you have.
I’ve got the least.
3. Have you made any mistakes?
I haven’t made many.
I’ve made more than you have. I’ve made the most.
4. Have you made any mistakes? I’ve made very few.
I’ve made fewer than you have. I’ve made the fewest.
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