8A Unit1 Grammar
1、大多数词后加er或est
3、以一个辅音字母结尾的重读闭音节词，双写最后一个辅音字母再加er或est
如：big slim wet red fat hot thin sad
4、以辅音字母加y结尾的词，去掉y，再加er或est 如：easy pretty happy
busy healthy lazy heavy funny early tidy thirsty
5、以---ous/---ful/---less/---ing/---ed/---ly等结尾的多音节词和双音节词加more
或most 如：
famous generous humorous dangerous
王自健抑郁症beautiful careful helpful useful
careless helpless hopeless useless
interesting exciting amazing boring tiring
interested excited amazed bored tired
quickly carefully healthily luckily
●注意：①部分前面加more或most的双音节词有：patient honest special often
②部分既可以加er/est 也可以加more/most的双音节词有：clever
polite simple stupid
6、一些不规则变化的单词：
good/well---better---best bad/badly/ill---worse---worst
many/much---more---most little---less---least
鸯组词组
old---older/elder---oldest/eldest far---farther/further---farthest/furthest
二、形容词比较级的用法：
1、A +动词+比较级+than B
< The picture is more beautiful than that one.
2、疑问词+动词+比较级，A or B？
< Which（city）is bigger，Wuxi or Suzhou?
3、the+比较级+of the two
< The prettier of the two girls is Lily.
The more beautiful of the twins is the elder sister.
4、even, much, far, no, any, a little, a lot, still+比较级
< even worse, much more important (much older), no more (not…any more)
This story is far more interested than that one.
I’m too tired. I can’t walk any farther.
5、时间，倍数或年龄+比较级
< My elder brother is two years older than I.
=I am two years younger than my elder brother.
The sun is 13,000,000 times larger than the earth.
I got to school five minutes earlier/later than Tom (did).
6、“比较级+and+比较级”表示“越来越……”
< He is getting fatter and fatter.
Our country is becoming more and more beautiful.
7、“the+比较级（主语+谓语），the +比较级（主语+谓语）”表示“越……(就)越……”
< The sooner, the better.
The more careful you are, the fewer mistakes you will make.
●注意点：
1、比较的两个对象要一致（人比人，物比物）。
< My bag is bigger than her. (╳)
My bag is bigger than hers. (√)
2、前后比较的对象性质或形式要相同，或者为避免重复，单数或不可数名词用that 代替，复数名词用those代替。
< In winter, the weather in Hainan is warmer than that/the weather in Beijing.
The apples on this tree are redder than those/the apples on that one.
Picking apples is more interesting than planting trees.
It is better to give than to receive.
形容心情的成语3、more只能用来构成比较级而不能修饰比较级。
< This bike is more newer than that one. (╳)
This bike is much newer than that one. (√)
4、两者比较中，特指“较……的一个……”, 比较级前面要加the。
< Which is the bigger city, Wuxi or Suzhou?
剑侠情缘3 职业(区别于：Which is bigger, Wuxi or Suzhou?)
5、两者比较中，泛指“较……的一个……”, 比较级前a。
< The computer is too expensive. Do you have a cheaper one?
河北联通炫铃三、形容词最高级的用法：
1、主+系动+the +最高级（+名词）+in / of / among
< Tom is the cleverest of / among all the boys. (Tom 与boy同一范畴)
Tom is the cleverest in his class. (Tom 与class不同范畴)
2、疑问词+is +the +最高级（+名词），A, B or C?
< Which is the tallest boy, Tom, Jim or Andy?
3、主+be +one of the +最高级+名词复数“......中最......之一”
< Shanghai is one of the biggest cities in our country.
4、主+be + the +序数词+最高级+名词单数+范围
< The Yellow River is the second longest river in China.
●注意：
1、形容词最高级前若有物主代词，指示代词或名词所有格修饰时不再加the，两个
或多个最高级连用，第一个形容词前加“the”
< That heaviest box is hers. Lucy is my best friend.
It's Mary's happiest day.
家装油漆品牌Please give the heaviest and biggest box to me.
2、形容词原级、比较级和最高级之间的转换：
（1）原级与比较级之间的转换：not so/as…as = less…than不如......怎么样
< This coat is not as expensive as that one.
=This coat is cheaper than that one.
=This coat is less expensive than that one.
=That coat is more expensive than this one.
（2）比较级与比较级之间的转换：
< Han Lei is much taller than Wang Dong.
=Wang Dong is much shorter than Han Lei.
（3）比较级与最高级之间的转换：
the other+复数名词= the others
A + be+比较级+ than + {any other +单数名词+范围（A在范围内）
any of the other + 复数名词
< Shanghai is the largest city in China.
= Shanghai is larger than the other cities in China.
= Shanghai is larger than any other city in China.
= Shanghai is larger than any of the other cities in China.
(Shanghai在China范围之内)
A + be+比较级+ than + any+单数名词+范围（A在范围外）
< Shanghai is larger than any city in Jiangsu. (Shanghai 不在Jiangsu范围之内)
●特别提醒：
enough very quite too so as…as... not so / as…as…只能修饰原级
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