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(共25张PPT)
Unit 1 Friendship Grammar
cheerful
honest
humorous
patient
energetic
trustworthy
helpful
What qualities should a good friend have
adjectives
adj. （形容词）
to describe（描述）
sb/ sth.
Lead-in
polite
Revision
Retell the description of Betty’s and Max’s looks
Betty, my best friend, is...
My best friend Max is...
a slim girl with big bright eyes
Her hair is longer than mine.
She usually wears it in a ponytail.
the tallest boy in our class—almost 1.8 metres tall.
He wears small round glasses. They make him look a little bit funny.
comparative adjectives
(比较级)+than
the+superlative adjectives (最高级)
构成方法 原级 比较级 最高级
long cheap longer cheaper longest
cheapest
nice late nicer later nicest
latest
big thin bigger thinner biggest
thinnest
大多数词后加er或est
以字母e结尾的词后加r或st
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
规则变化
Look and summarise
构成方法 原级 比较级 最高级
pretty heavy prettier heavier prettiest
heaviest
careful dangerous interested more careful more dangerous more interested most careful
most dangerous
most interested
以辅音字母+y结尾的词，去掉y，再加ier或iest
部分双音节词和多音节词在前面加more或most
注意：
构成形容词比较级和最高级的er和est，自成一个音节，读作/ (r)/ 和/ st/。如果原级词末为不发音的字母 r，加er和est 时，r 要发/r/ 音，如clear /kl (r)/、clearer / kl r (r)/、clearest / kl r st/。如果原级词末的发音为/ /，加er 和est 时，/ /音后得加上/ɡ/音，如 long /l /、longer / l ɡ (r)/、longest / l ɡ st/。
原级 比较级 最高级
good/well(健康的)
bad/ill
many/much
little (少的)
better
best
worse
worst
more
most
less
least
常见的形容词比较级和最高级的不规则变化如下：
The bike is ______.
The tractor is ______than the bike .
The car is the______of the three .
fast
faster
fastest
Compare the speed
注意：
有些形容词有两种比较级和最高级的变化方式。如：
clever—cleverer/more clever—cleverest/most clever
far—farther/further—farthest/furthest
写出比较级和最高级：
short-_______ -______
cute-______-_______
happy-_______- ______
lazy-______-_______
big- _____- _______
6. thin- ______- _____
7. sad- ______- _____
8. difficult- ____________- _____________
9. interesting-____________- ____________
10. good-______ - ___________
11. bad-________- _______
shorter
shortest
cuter
cutest
happier
happiest
lazier
laziest
bigger
biggest
thinner
thinnest
sadder
saddest
more difficult
most difficult
more interesting
most interesting
better
best
worse
worst
Peter is __________ (short) Simon.
Simon is __________ (tall) of the six students.
Amy is _____________ (light) Sandy.
Simon is ____________ (heavy) of the six students.
Peter’s drawing grade __________ (low) than Millie’s.
shorter than
the tallest
lighter than
the heaviest
lower
6. Sandy’s drawing grade __________ (high) of the six students.
7. Among the six students,Millie is __________________ (slow) swimmer.
Amy is ____________ (fast) swimmer of the six students.
Simon’s test score for the standing long jump is _____________ (good) Amy’s. Simon’s test score for the standing long jump is __________ (good) of the six students.
the slowest
the fastest
the highest
better than
the best
构成方法 原级 比较级 最高级
longer cheaper longest
cheapest
nice late nicer later nicest
latest
big thin bigger thinner biggest
thinnest
pretty heavy prettier heavier prettiest
heaviest
大部分单音节词在词尾加-er或-est
以字母e结尾的词，加-r或-st
重读闭音节词 末尾只有一个辅音字母时，应先双写辅音字母，再加-er或-est
以辅音字母+y结尾的双音节词，先改“y”为“i”,再加-er或-est
long
cheap
规则变化
构成方法 原级 比较级 最高级
careful dangerous interested more careful more dangerous more interested most careful
most dangerous
most interested
部分双音节词和多音节词在前面加more或most
1. 修饰原级：
very, quite, so, too
2. 修饰比较级：
a little/a bit, much/far, even
4. 易混淆的两个句型：
He is the tallest (tall) of the 3 students.
He is the taller (tall) of the 2 students.
3. one of + the + 最高级 + 名词复数形式
● Changjiang is one of the longest rivers in China.
最长的河流之一
不规则 变法 good / well
bad /badly/ill
many / much
little
far
old
better
best
worse
worst
more
most
less
least
farther
（更远的）
farthest
further
（进一步的）
furthest
older / elder
oldest / eldest
[w s]
[w st]
summary
比较级、最高级构词法：
1. 大多数词后加er或est
2. 以字母e结尾的词后加r或st
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
4. 以辅音字母+y结尾的词，去掉y，再加ier或iest
5. 部分双音节词和多音节词在前面加more或most
summary
比较级用法：
1. A + be + 比较级 + than + B.
2. Which/Who ... + 比较级 , ... or ...
3. 比较级前用a little、much、even 等词来修饰
4. “比较级 + and + 比较级” 越来越……
summary
最高级用法：
1. the + 最高级 + of/in+表示范围的词语
2. one of 后面的形容词常用最高级
4. 用序数词修饰形容词的最高级。
3. 形容词性物主代词 + 最高级
注意：此时形容词的最高级前不需要加定冠词the。
用形容词的适当形式填空
1.My father is much ______ (busy)than my mother.
2. There are ____ (many)girl students our class than in yours.
3.Which is _______ (big),a dog or a cat
4.He is ________ (good) student in our class.
5. The boy can run even _____(fast) than LiuXiang.
6.Li Ming is _______________(helpful) than he .
7.Who is ____________ (careful) one in your team
8. He is one of my _________(good) friends.
busier
more
bigger
the best
faster
more helpful
the most careful
best
I’m feeling even _________.(bad)
Kate works much ______(hard) than Jim.
It’s a little _______(warm)today than yesterday.
This cake is far _____________(delicious) than that one.
Who runs __________(fast), Lucy, Lily or Han Mei
Simon is____________________________ (最慷慨的学生之一) in our class.
worse
harder
warmer
more delicious
the fastest
practice
one of the most generous students
Adjective Comparative Superlative Adjective Comparative Superlative
funny pretty
close bright
beautiful interesting
kind sad
silm wonderful
difficult heavy
smart good
cute bad
一、写出下列形容词的比较级和最高级。
原级 比较级 最高级
helpful
pretty
wide
hot
short
little
more helpful
most helpful
prettier
prettiest
wider
widest
hotter
hottest
shorter
shortest
less
least
当堂检测
1. The sun is __________ (big) than the earth.
2. Which one is ________ (heavy), this box or that one
3. Who is ________ (tall), Pingping or Yangyang
4. Which is (fast), bike, bus or plane
5. He is one of (popular) singers in China.
6. Of all the girls, Lucy is ______________. (slim)
bigger
heavier
taller
the fastest
the most popular
the slimmest
二、用所给单词的适当形式填空。
Review the lesson we learnt today.
Review the next lesson.
Homework

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