Unit 1 Friends Grammar课件 (共33张PPT)2023-2024学年牛津译林版英语八年级上册

(共33张PPT)
译林版
初中英语 译林版八年级上册
Unit 1
Period 3
Grammar
新课导入
Video about comparative and superlative adjectives
1
2
能熟悉并能正确运用本课时的重点单词和短语。
能掌握形容词的比较级和最高级的构成和基本用法。
预习检测
1. ‘‘Food Safety” has become one of _______ topics recently. A. hot B. hotter C. hottest D. the hottest
2. The weather here is _______ than that in my hometown.A. warmer B. more warmC. warm D. more warmer
3. People usually like the TV channels with funnier programmes but _______ advertisements. A. few B. little C. fewer D. less
D
A
C
4. Among all my classmates, Tom is the _______.A. hard-working B. most hard-working C. more hard-working D. hard-workingest
5. If you want to be _______, you have to take _______ exercise. A. stronger ; more B. more strong; moreC. stronger; less D. strong ; less
B
A
知识梳理
Language Points
1. worse 更差，更糟，更坏（bad、badly的比较级）
worst 最差，最糟，最坏 （bad、badly的最高级）
此外：better 更好（good、well的比较级）
best 最好（good、well的最高级）
e.g. Everything becomes worse.
一切变得更糟。
e.g. What's the worst thing that could happen
情况最坏会怎么样？
2. competition n. 竞赛，比赛；竞争
e.g. 他们正在竞赛。
They are having a competition.
compete vi. 竞争；比赛；对抗
e.g. We have to learn to cooperate and compete.
我们必须学会合作和竞争。
compete with 与……竞争
e.g. They decided to compete with us.
他们决定跟我们竞争。
形容词的比较级和最高级
The air is bad.
The air is worse.
The air is the worst.
bad
— worse
— worst
New words
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
e.g. He is doing a maths test.
test n. 测试，考查
Lead in
The girl is shorter than the boy.
The boy is taller than the girl.
The girl is the tallest of the three.
My book is more interesting than his.
His book is less interesting than mine.
This book is the most interesting of all.
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)
比较级和最高级
原级 比较级 最高级
规则变化 短词 tall taller tallest
长词 interesting more interesting most interesting
不规则变化 good better best
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
bad
little
much/many
old
far
better
best
worse
worst
二、不规则变化
less
least
more
most
older/elder
oldest/eldest
farther/ further
farthest/ furthest
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
Practice
Daniel is writing about is classmates. Help him complete the following table with the correct adjectives.
Adjective Comparative Superlative
clean cleaner cleanest
short
cute
big
happy
lazy
shorter
shortest
cuter
cutest
bigger
biggest
happier
happiest
lazier
laziest
Adjective Comparative Superlative
thin
sad
difficult
interesting
good
bad
thinner
thinnest
sadder
saddest
more difficult
the most difficult
more interesting
better
best
worse
worst
most interesting
1. 两者之间用比较级。
句型结构：
A + be + 比较级 + than + B
2. 三者及以上用最高级。
句型结构：
A + be the + 最高级 + 表三者及以上的范围
形容词比较级和最高级的基本使用原则
e.g.
1. She is shorter than I am.
2. My book is more interesting than his.
3. He is the tallest in our class.
4. This is the most expensive computer in the shop.
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
50 m 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.
2 Peter is (tall ) of the six students.
3 Sandy is (heavy) Millie.
4 Peter is (heavy) of the six students.
5 Among the six students, Millie is (slow) swimmer.
the tallest
heavier than
the heaviest
the slowest
taller than
6 Amy is (fast ) swimmer of the six students.
7 Millie’s drawing is (beautiful) Peter’s.
8 Sandy’s drawing is (beautiful) in her class.
9 Millie’s English is (good) Simon’s. Millie’s
English is (good) in her class.
more beautiful than
the most beautiful
better than
the best
the fastest
Work out the rule!
We put than __________ (before/after) comparatives.
We put the ___________ (before/after) superlatives.
after
before
活动小结
通过以上的活动，我们学习了：
形容词的比较级和最高级的构成：1. 大多数词后加______或______;2. 以字母e的词后加______或_______;3. 以一个辅音字母结尾的重读闭音节，双
写最后一个辅音字母再加_____或_____;4. 以辅音字母+y结尾的词，去掉y,再加_____或______;5. 在词的面前加_______或______;
er
est
r
st
er
est
ier
iest
more
most
Which is ____________ (big), the sun, the moon or the earth
She is ____________ (good) swimmer among them.
Her drawing is ____________ (beautiful) than the other three.
Whose bike is ____________ (new), his or hers
当堂检测
一、用所给单词的适当形式填空。
biggest
the best
newer
more beautiful
二、翻译下列句子。
1. 这台电脑比那台贵。
This computer is ________ __________ _________ that one.
2. 这三个盒子哪一个最重？
Which box is _______ ________ _______ _______ _______
3. 今天比昨天热吗？
Is today _______ ________ yesterday
4. 在这些学生中，Sandy数学最好。
Sandy is ______ _______ _______ _______ ______ ______ _______.
5. 第一道数学题比第二道难得多。
The first maths problem is much ________ ________ ______ the second one.
more expensive than
the heaviest of the three
hotter than
the best at maths among these students
more difficult than
Unit 1
Period 3
重点单词：
worse, worst, weight, height, competition, test, swimmer
形容词比较级和最高级的一般构成：
1. 大多数词后加______或______;
2. 以字母e的词后加______或_______;
3. 以一个辅音字母结尾的重读闭音节，双
写最后一个辅音字母再加_____或_____;
4. 以辅音字母+y结尾的词，去掉y,再加
_____或______;
5. 在词的面前加_______或______;
er
est
r
st
er
est
ier
iest
more
most