八年级上册比较级

八年级上形容词与副词的比较级与最高级
姓名：得分：
（一）规则变化：
1．绝大多数的单音节和少数双音节词，加词尾-er ，-est tall—taller—tallest
2．以不发音的e结尾的单音节词和少数以-le结尾的双音节词只加-r，-st
nice—nicer—nicest , able—abler—ablest
3．以一个辅音字母结尾的重读闭音节词或少数双音节词，双写结尾的辅音字母，再加-er，-est
big—bigger—biggest
4．以辅音字母加y结尾的双音节词，改y为i再加-er，-est easy—easier—easiest
5．少数以-er，-ow结尾的双音节词末尾加-er，-est clever—cleverer—cleverest,
narrow—narrower—narrowest
6．其他双音节词和多音节词，在前面加more，most来构成比较级和最高级
easily—more easily—most easily
（二）不规则变化
常见的有：
good / well—better—best ; bad (ly)/ ill—worse—worst ; old—older/elder—oldest/eldest many / much—more—most ; little—less—least far—farther/further—farthest/furthest ; 用法：
1．原级比较：as + adj./adv. +as（否定为not so/as + adj./adv.
+as）
当as… as中间有名字时，采用as + adj. + a + n.或as + many / much + n.
This is as good an example as the other is .
I can carry as much paper as you can.
表示倍数的词或其他程度副词做修饰语时放在as的前面This room is twice as big as that one.
倍数+as+adj.+as = 倍数+the +n.+of
Your room is twice as larger as mine. = Your room is twice the size of mine.
2．比较级+ than
比较级前可加程度状语much, still, even, far, a lot, a little, three years. five times,20%等
He is three years older than I (am).
表示“（两个中）较……的那个”时，比较级前常加the（后面有名字时前面才能加冠词）
1）He is the taller of the two brothers. /
2）He is taller than his two brothers.
3）Which is larger, Canada or Australia? /
4）Which is the larger country, Canada or Australia?
可用比较级形式表示最高级概念，关键是要用或或否定词等把一事物（或人）与其他同类事物（或人）相分离He is taller than any other boy / anybody else.
Nobody is taller than him.
比较对象相同时，可用that, those等代词代替第二个比较对象
The weather in Shanghai is better than that in Wuhan.
比较级+ than与not so/as + adj./adv. +as的相互转换Maria is not so / as brave as Helen. = Helen is braver than Maria.
Nothing is so easy as this. = Nothing is easier than this. =
This is the easiest thing.
3．“比较级+ and + 比较级”表示“越来越……”（加more构成比较形式的，只重复more，不重复原形容词或副词
colder and colder , more and more beautiful
4．“the +比较级（……），the +比较级（……）”表示“越……，越……”
The earlier you start, the sooner you will be back.
5．降级比较用“the + 原级形容词或副词（不论是单音节还是多音节的）+ than 从句”
Today is less cold than yesterday.
6．一些特殊比较词组：
no more than 不过，仅仅；同……一样不能not more than至多，不超过
no less than 多达，有……之多（加数字）（强调数量之多，带有感情色彩）；一样，不亚于，恰好
not less than不少于（加数字）（无强调多少之意）7．the + 最高级+ 比较范围（in表示环境范围；of或among 表示对象范围）
He is the tallest of / among the boys.
He is the tallest in his class.
最高级前不加the情况：
①作表语的形容词最高级前，如果不是和别人（或别物）相比，常不加the We are busiest on Monday.
②形容词最高级前有物主代词时，不再加the
Wang Hai is my best friend.
③最高级形式有时并不表示最高级概念，它只表示非常或“在很大程度上”，这时前边一般不加the
It’s a most important question. = It’s a very important question.（一）写出下列形容词与副词的比较级与最高级形式：long_____ ______ wide ______ _______ fat ____ _____ heavy____ ______ slow ______ _______ few____ _____ brightly______ -_____ bably _____ _______ far____ _____ quickly _____ ______ happy_____ -______ unhappy________
(二)用所给词的正确形式填空：
1. Of the two girls, I find Lucy the _______ (clever).
2. Gold(黄金) is ______ (little) useful than iron(铁).
3. My sister is two years _______ (old ) than I.
4. John’s parents have four daughters, and she is the _____ (young) child.
5. The _____ (cheap) bags are the not usually the best ones.
6. The short one is by far _______ expensive of the five.
7. The boy is not so ______ (interesting) as his brother.
(三)选择填空：
1．He feels _____ today than yesterday.
A. tired
B. more tired
C. more tireder
D. much tired
2. Which do you like _____, coffee, tea or milk?
A. the worst
B. worse
C. the worse
D. worst
3. Of the two toys, the child chose_____.
A. the expensive one
B. one most expensive
C. a least expensive
D. the most expensive of them
4. The line is ____ than that one.
A. more longer
B. not longer
C. much more longer
D. many more longer
5. The earth is _____ the moon.
A. as 49 times big as
B. 49 times as bigger as
C. 49 times as big as
D.as big as 49 times。