八上unit4知识点整理(可编辑修改word版)

八上unit4 What’s the best movie theater? 知识点总结

一.形容词和副词的比较级和最高级的变化方法如下

(1)符合规则的：

(2)几个不规则的形容词和副词的比较级和最高级如下表：

二．形容词副词比较级最高级的用法

（1）和冠词连用

the ＋形容词原级，指一类人或物

the ＋形容词比较级，指两者中“较…的”的那一个，

eg. the younger of the two

a/ an ＋形容词比较级

eg. The pen is expensive. I want a cheaper one.

a ＋most＋形容词最高级“非常…”

eg. a most beautiful city

( 2 ) 相关结构

1)原级比较：肯定句as….as….,否定句not so / as….as…..

2)比较句：比较级＋than….或more (less) ….than…..

The furniture in this shop is less beautiful than that in that

shop.(注意代词that 的用法)

3)比较级＋and＋比较级或more and more＋比较级“越来

越… ”

richer and richer, more and more interesting

4)The more….., the more…..“越…，越…”

The more you look at the picture, the better you will like it.

5）比较级＋than any other ＋n. （单）（适用于范围一致时）

(all) other ＋n.（复）

any ＋n.( 单) （适用于范围不一致时）

He is taller than any other student / all other students in his class.

any student in my class.

6)倍数表达法。

A is three(four, etc.)times the size(height, length etc.)of B.

A is three(four, etc.)times as big(high, long, etc.)as B.

A is three (four, etc.)times bigger(higher, longer, etc.)than B. 用times 表倍数通常用于三倍以上，两倍可以用twice 或double.

The new building is four times the size (the height)of the old one.

这座新楼比那座旧楼大三倍（高三倍）。

Asia is four times as large as Europe.亚洲比欧洲大三倍。

Your school is three times bigger than ours.你们的学校比我们的学校大三倍。

7)more…than…结构，其意往往是…rather than…，可译为“是…… 而不是……”或颠倒词序译作“与其说是……，不如说是……”。That little girl is more tired than hungry. 那个小姑娘是累了而不是饿了。

She is more a mother than a wife 或She is more of a mother than a wife. 她是贤妻，更是良母。

8)A is to B what C is to D A 和B 的关系就像C 和D 的关系

Air is to man what water is to fish.

空气对于人类就像水和鱼的关系。

9)no more than= only “只不过”，言其少

not more than=at most “不多于”，“至少”，指事实。

no more …than… 和…一样不…

not more…than…不比…更…

no less than= as much as “多达”

no fewer than= as many as

eg: I have no more than five yuan in my pocket.

我口袋里的钱只不过5 元。

I have not more than five yuan in my pocket.

我口袋里的钱不多于5 元。

He is no richer than I.他和我一样穷。

He is no less determined than you. 他的决心不亚于你。

(no less determined than 等于“其决心不亚于你”，言其大)

He is not less determined than you. 他的决心不比你小。

(not less determined than 等于“其决心不小于”，无言其大或小的含义)

10)最高级＋of/ in/ among….

He is the tallest of the three/ among them/ in is class.

三．相关词语辨析/课文知识点详解

1.so 和such

A)so … that … 与such … that … 的区别。

so + 形容词/ 副词+ that …

so + 形容词+ a（n）+ 单数可数名词+ that … so

+ many / much / little / few + 名词+ that … such

+ a(n)+ 形容词+单数可数名词+ that … such +

形容词+ 不可数名词+ that …

such + 形容词+ 复数名词+ that …

注意：但当little 表示“小”时用such。

如：These are such little boys that they can’t dre ss t hemselves.

下列so 的用法是错误的：

so a difficult problem, so difficult problems, so hot weather。

B)some/ any/ every/ no/ each/ all/ another/ several/ few/ many/ one/ two +such+n. eg. no such word