牛津译林版英语八年级上册 Unit 1 Friends Grammar课件（53张PPT）

(共53张PPT)
Comparative and superlative adjectives
e.g. The girl’s height is one metre.
height
n. 高度，身高
e.g. He wants to lose weight by
exercising.
weight
n. 重量；体重
e.g. They are having a competition.
competition n. 竞赛，比赛
worse adj. (bad的比较级)更坏，更差
worst adj. (bad的最高级)最坏，最差
height n. 高度；身高
weight n. 重量；体重
sec. abbr. (= second) 秒
competition n. 竞赛，比赛；竞争
test n. 测试，考查
swimmer n. 游泳者
The air is bad.
The air is worse.
The air is the worst.
bad — worse — worst
形容词比较级和最高级形式
形容词原级 比较级 最高级
短词
tall
small
词尾＋er
词尾＋est
taller
tallest
smaller
smallest
一、规则变化
形容词原级 比较级 最高级
以不发音的e结尾的形容词
nice
fine
以辅音字母＋y结尾的形容词
pretty
easy
把 y 改成 i + er
+ st
nicer
nicest
finer
finest
把 y 改成 i + est
prettier
+ r
easier
prettiest
easiest
形容词原级 比较级 最高级
重读闭音节,结尾只有一个辅音字母
slim
big
长 词
beautiful
important
双写最后一个辅音字母 + est
slimmer
slimmest
bigger
biggest
双写最后一个辅音字母 + er
前面 + more
前面 + most
more beautiful
more important
most beautiful
most important
特殊形容词原级 比较级 最高级
good ∕ well
bad ∕ ill
little
much/many
far
better
best
worse
worst
二、不规则变化
less
least
more
most
farther/ further
farthest/ furthest
Part A：Daniel is writing about his classmates. Help him complete the following table with the correct adjectives.
Adjective Comparative Superlative
clean cleaner cleanest
big
cute
short
happy
lazy
bigger
biggest
cutest
cuter
shorter
shortest
happier
happiest
lazier
laziest
Adjective Comparative Superlative
thin thinner thinnest
sad
difficult
interesting
good
bad
better
best
worse
worst
sadder
saddest
more difficult
most difficult
more interesting
most interesting
Warming up
He is taller than I am.
他比我高。
比较级的用法：
在形容词或副词后面+er
He runs faster than she.
He is taller than she.
注意：A+ be/行为动词+形容词或副词的比较+ than+ B.
“A比B…”
Yao Ming is the tallest of the three.
姚明是三位中最高的。
最高级的用法：
三者或三者以上比较
关键词有of , in , among “……之中最……”
最高级要用the或者one’s修饰
在形容词或副词后+est
He is the tallest of the three.
She runs the fastest in our class.
Tom is her oldest son among the four children.
注意：A+ be/行为动词+ the/one’s+ 形容词或副词的最高级+ of/in/among +范围.
“A在某范围内是最…”
50kg
200kg
400kg
The first box is______.
The second box is ______ than the first one.
The third box is ___________of all.
heavy
heavier
the heaviest
The first bag is very nice.
The second bag is _____than the first one.
The third bag is ________ of all.
nicer
the nicest
用所给的形容词副词的适当形式填空。
1. Tom is ____ (tall) than Jim.
2. Li Lei is __________ (young) boy in his class.
3.David's book is _________ (small) than Tom's.
4.Li Lei is ___________ (short) among his group.
5.Lucy runs ________ (slow) than Lily.
taller
the youngest
smaller
the shortest
slower
My book is more interesting than his.
我的书比他的更有趣。
This book is the most interesting of all.
这本书是所有当中最有趣的。
多音节词或部分双音节词：
比较级 前 + more
最高级 前 + most ，不能少the
用所给的形容词副词的适当形式填空。
1. Tom is ______________ (beautiful) than Jim.
2. Li Lei is __________ (careful) in his class.
4. English is_______ (important) than Math.
5.The book is __________ (interesting) among the three.
more beautiful
the most careful
more important
the most interesting
形容词通常有三种形式: 原级，比较级和最高级，用来表示人或事物在某方面的不同程度。如：
(Comparative and superlative adjectives)
The first kite is good.
The second kite is __________ the first one.
The third kite is ___________ of the three.
better than
the best
Adjective Comparative Superlative
funny
bad
healthy
careful
large
smart
slim
funnier
funniest
worse
healthier
worst
healthiest
more careful
most careful
larger
largest
smarter
smartest
slimmer
slimmest
Complete the table below.
1、两者进行比较，用比较级，关键词是than
在短词后+er, 长词 前+ more
2.三者或三者以上比较，用最高级，关键词是of, in, among. 最高级要与the或one's连用。
在短词后+est , 长词 前+ most
4. 不规则的词要单独记忆。
Max is _______than May. He is___________ in our class. (tall)
2.Peter’s flat is ______ than Amy’s. Peter’s is _________ of all the students. (close).
3.Sandy is _______ than Millie.
She is ____________ of the three girls. (pretty)
taller
the tallest
closer
prettier
the prettiest
the closest
Fill in the blanks with the proper forms
4.Jack is _______ than his father. He is ___________ in his family. (thin)
5.Millie’s pictures are ____________ than Simon’s.
Hers are ______________ of all. (beautiful)
6.Millie’s English is _____than me. Her English is _______ in our school. (good)
thinner
more beautiful
better
the thinnest
the most beautiful
the best
一、单项选择。
1. Which is _______, the sun, the moon or the earth
A. big B. bigger C. biggest D. the biggest
2. She is _______ swimmer among them.
A. good B. best C. better D. the best
Exercises
√
√
3. Her drawing is _____ than the other three.
A. beautiful B. more beautiful
C. the most beautiful D. the more beautiful
4. Whose bike is ______, his or hers
A. new B. newer
C. the newest
√
√
Daniel has made a profile of his classmates. Read the profile and complete his notes.
Millie Sandy Amy Peter Kitty Simon
Height (cm) 157 170 160 173 155 171
Weight (kg) 45 50 44 55 40 53
50m
Swimming
(sec) 40 38 30 34 36 35
Drawing competition 9/10 10/10 9/10 5/10 6/10 8/10
English
test 10/10 8/10 9/10 6/10 8/10 7/10
1. Simon is _______________ (tall) Sandy.
taller than
2. Peter is ________________ (tall) of the six students.
the tallest
3. Sandy is ______________ (heavy) Millie.
heavier than
4. Peter is ___________________ (heavy) of the six students.
the heaviest
5. Among the six students, Millie is __________________(slow) swimmer.
the slowest
6. Amy is ___________________(fast) swimmer of the six students.
the fastest
7. Millie’s drawing is__________________ (beautiful) Peter’s.
more beautiful than
8. Sandy’s drawing is_________________ (beautiful) in her class.
the most beautiful
9. Millie’s English is__________________ (good) Simon’s. Millie’s English is________ (good) in her class.
better than
the best
adj.比较级用法　
1. 在比较级前可用 much, even,a little, a lot等来修饰
eg. The boy is _______ than his friend.
A. much taller B. more tallest
C. more taller D. much tallest
2. 表本身程度变化 (越来越……):
比较级+and +比较级
eg. 1) 他越来越高。
2) 她越来越美。
He is taller and taller.
more +and more+原级
只用于以“more”构成比较级的词　
She is more and more beautiful.
3. 同义句：
　比较级+than any other +单数名词
=比较级+than the other +复数名词
eg.
She is taller than______ ______ _______ of the class.
=She is taller than ______ _____ _______ of the class.
any
other
girl
the
other
girls
4.我们 用“Which…+比较级，…or … ”的句型来表示在两者中选择。 如：
Which is bigger,the sun or the moon
5. the second/third/fourth…+最高级
表示“第几……”
eg. Millie is the third _________(tall) in her class.
tallest
1. The environment in our hometown is _____ than it was before.
A. good B. worse
C. better D. bad
2. I can type _____ than I can write by hand.
A. fast B. much faster
C. more faster D. fastest
3. --Have you decided which you’d like to buy, the black shirt or the yellow one
---The black one. Because it is _______ of the two.
A. the nicer
B. the nicest
C. nicer
4. Lilei is _____ than any other _______ in his class.
A. tall, students
B. taller, students
C. taller, student.
比较级+any other + 单数名词.
“比其他任何……都……”.
(暗指: 最高级)
1.She is the ________in the class.
(young)
2.Jason is the _____of the three.(tall)
3.Whose handwriting is the ____of all
(good)
youngest
tallest
best
最高级的用法
表示三者或三者以上（人或事物）的比较用最高级，最高级的前面一般要加定冠词the，后面可带of（in, among）短语来说明比较的范围.
1.她女儿是她们学校最好学生之一.
2.中国长城是世界上最伟大的建筑之一.
“ 最……之一”: 用one of the +
形容词最高级+名词复数 + of / in介
词短语. 如:
Her daughter is __________________ in her school.
The Great Wall of China is _______ ___________ in the world.
one of the best students
one of the
greatest buildings
The Yellow River is _______ river in China.
A. the second longest
B. the second longer
C. second longest
the +序数词＋最高级
“表示第几……”
1. ---Who’s ______ basketball player in China now Is it Yao Ming
---No. It’s Sun Mingming.
A. tall B. taller C. the tallest
2. English is one of ______ imporant subjects in our school.
A. most B. the most
C. more D. much more
3. Which boy is ______, Jim, Mike or Tom
A. tallerB. the most tall
C. the tallestD. the taller
4. Of all the ball games, I like baseball ______. it’s really my favorite.
A. well B. good
C. better D. best
Ⅰ. 用括号内所给形容词的适当形式填空。
1. I am ________(thin) than Kitty.
2. Summer is the ______(hot) season in a year.
3. Who has the ________(many) books, Tom, Amy or Daniel
4. Those flowers are much________ (beautiful) than these ones.
5. This piano is ________(expensive) than that one.
thinner
hottest
most
more beautiful
more expensive
6. It is _______ in the south than in the north. (warm)
7. That question is ____________ than this one.
(difficult)
8. She felt ill yesterday and she feels even _______
today. (ill)
9. He is much _______ than his younger brother.
(young)
10. Lily is __________ of the three. (young)
11. Tom is ________ of the twins. (tall)
12. Which do you think tastes________, the chicken
or the fish (good)
13. Who runs _____, Tom or Jim (fast)
warmer
more difficult
worse
the youngest
younger
the taller
better
faster