Unit 7 What's the highest mountain in the world? 专题复习——形容词的比较级和最高级 课件(24张PPT)

(共24张PPT)
专题复习　
形容词的比较级和最高级
形容词的定义
形容词用于修饰名词和代词，表示人和事物的性质和特征。
┃考点直击┃
考点1 形容词的一般用法
1．形容词＋名词，形容词作定语。如：
a beautiful flower 一朵美丽的花儿
2．be＋形容词，形容词作表语。如：
The food is delicious.食物很美味。
3．不定代词＋形容词，形容词作后置定语。如：
something new 一些新的东西
4．the＋形容词，表示一类人或物。如：
the old 老人
【例题解析】
1. The price of the sweater is very ________. I can't afford it.
A. expensive B. cheap C. high
[解析] C　考查形容词的用法。表示价格(price)高低用high和low。不能用expensive 和cheap。
2. Old Henry is so lonely that he hopes to know about ________ every day.
special something B. special anything
C. something special D. anything special
[解析] C　形容词修饰不定代词要放在不定代词的后面，且在肯定句中表示“某事”应用something。故选C。
考点2 形容词的三级
大多数形容词都有三个等级：
原级
比较级 (比较……，更……一些)
最高级 (最……)
1．原级的用法
（1）只能修饰原级的词有very, quite, too, so等。如：
She is too busy today. 她今天太忙了
（2）注意：enough 放在形容词原级之后
big enough 足够大
（3）as+形容词原级+as 表示“和……一样” 如：
Grace is as tall as Alice. 格蕾丝和爱丽丝一样高
2．比较级常用的句型结构
(1)“A＋v.＋形容词/副词比较级＋than＋B”表示“A比B……”。如：
Tom is taller than Kate.汤姆比凯特高。
I got up earlier than my mother this morning.
我今天早晨起床比我妈妈早。
(2)“比较级＋and＋比较级”表示“越来越……”。如：
He is getting taller and taller.他长得越来越高了。
Our school is becoming more and more beautiful.
我们的学校变得越来越漂亮。
(3)“the＋比较级，the＋比较级”表示“越……，越……”。如：
The more careful you are，the fewer mistakes you'll make.
你越仔细，犯的错误就越少。
注意：比较级前一般可用much, a little, a lot, even, still,
far, a bit 等来修饰。
3. 最高级常用的句型结构
(1)“主语＋be/实义动词＋the＋形容词/副词最高级＋可数名词单数＋in/of短语”表示“……是……中最……的”。如：
Tom is the tallest in his class/of all the students.
汤姆是他们班上/所有学生当中最高的。
I jump (the) farthest in my class.
我是我们班跳得最远的。
注意：形容词最高级前面加定冠词 the，
副词最高级前面可以省略。
形容词比较级和最高级的构成规律
规则变化
词的特征 变　　化 例　　词 原级 比较级 最高级
一般单音节词 直接加 er， est strong stronger strongest
以e结尾的词 加 r， st wide wider widest
以单个辅音字母(非r)结尾的单音节词 双写末尾的辅音字母，再加 er, est fat thin fatter thinner fattest
thinnest
以“辅音字母＋y”结尾的双音节词 变y为i，再加 er, est heavy happy heavier happier heaviest
happiest
多音节词及某些双音节词 在原级前加more, most difficult slowly more difficult more slowly most difficult
most slowly
形容词比较级和最高级常见的不规则变化
[记忆小技巧] 不规则变化的词可以总结成以下三句顺口溜：“坏”“病”两“多”和两“好”，一是“远”来二是“老”，little是“少”不是“小”。
原　　级 比　较　级 最　高　级
good, well better best
bad, badly, ill worse worst
many, much more most
little less least
far farther, further farthest, furthest
old older, elder oldest, eldest
1. —Susan, you know what We can have a dog!
—Great! But I prefer to have a cat. It is much ________ to look after.
A. easy B. easier C. easiest
[解析] B　考查比较级的用法。much可以修饰比较级，而不能修饰原级和最高级，故选B。
【例题解析】
【典型例题训练】
(　　)1.—Tony, how are you feeling now
—Much ________. I think I can go to school tomorrow.
A．worse B．bad C．well D．better
(　　)2.—Can you hear me
—No, I can't. Would you please speak ________？
A．loudly enough B．loud enough
C．enough enough D．enough loudly
A
D
(　　)1. Julie is as ________ as Paul. But she is _______than Paul.
A. samrt; more outgoing B. samrter; outgoing
C. samrter;more outgoing D. samrt; outgoing
┃巩固练习┃
A
(　　)2. These oranges taste________．
A. good B. well
C. to be good D. to be well
A
(　　)3. The experiment（实验） was ________ easier than we expected.
A. more B. much more C. much D. more much
A
(　　)4. John has three sisters. Mary is the ________ of the three.
A. most cleverest B. more clever C. cleverest D. cleverer
A
综合练习
(A)用所给词的适当形式填空。
1. Bill is ________(tall) than Tom.
2. Helen is the ________ (young) in our class.
3. Alice felt very ________ (happy) at her birthday party.
4. Which is ________ (far) from us, the Mars(火星) or the moon
taller
youngest
happy
farther
6. She is________ (thin) than me.
7.John seems to be the ________ (busy) boy in his company.
8.“The sooner, the ________ (good)”， the teacher says to us.
9.Lisa has the ________ (little) juice of the three girls.
thinner
busiest
better
least
10. We don't think their classroom is as ________(clean) as ours.
11. Lily walks as ________ (slow) as Nancy does.
12. Shanghai is one of the ________ (big) cities in the world.
clean
slowly
biggest
13. Which is the _____________ (beautiful) skirt of the three
14. The sick old woman is getting ________ (ill)．
15. The meat smells ________(bad). Please take it away.
16. The wind is blowing ________ (strong)．
most beautiful
worse
bad
strongly
21. 你有什么重要的事情要说吗？
Do you have ________ ________ to say
22. 这是一场很大的雪。
It is a ________ ________ snow.
24. 那些故事听起来好恐怖。
Those stories ________ very ________．
25. 汤姆足够大去上学了。
Tom is ________ ________ to go to school.
anything important
very heavy
sound
terrible
old enough
(B) 根据汉语提示完成句子。
Thanks for listening！