牛津译林版英语 八年级上册 Unit 1 Friends. grammar 课件 (共33张PPT)

(共33张PPT)
Unit 1 Grammar
Comparative and superlative adjectives
New words
PART ONE
01 New Words
worse (bad的比较级)更坏，更差
worst (bad的最高级)最坏，最差
height 高度；身高
weight 重量；体重
sec. (= second) 秒
competition 竞赛，比赛；竞争
test 测试，考查
swimmer 游泳者
The bike is ______.
The tractor is ______ .
The car is ________ .
fast
faster
the fastest
Compare them
Compare them
The black and white dog is the happiest of the three.
The white dog is very happy.
The yellow dog is much happier.
He is fat.
He is fatter.
He is the fattest of all.
Comparative
adjectives
形容词比较级
PART TWO
02 比较级的用法
We use them to compare ___ things/people and add ____ after comparatives.
two
than
比较级用于比较两个人/事物;比较级后通常出现“than”.
PPT模板 http://www./moban/
02 比较级的构成
构成方法 原级 比较级
longer
fewer
cheaper
nice safe late nicer
safer
later
big hot thin bigger
hotter
thinner
pretty unhappy heavy prettier
unhappier
heavier
大部分单音节词在词尾加-er
以字母e结尾的词，加-r
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
以辅音字母+y结尾的双音节词，先改“y”为“i”,再加-er
long
few
cheap
02 比较级的构成
构成方法 原级 比较级
careful clearly dangerous interested more careful
more clearly
more dangerous
more interested
部分双音节词和多音节词在前面加more
当两个人或物之间进行比较时，比较级之前可以用much或a little等来进行修饰，如：
e.g. She is a little taller than me. 她比我高一点。
This film is much more interesting than that one.
这部影片比那部影片有趣得多。
02 比较级的构成
不规则 变法 good / well
bad /badly/ill
many / much
little
far
old
better
worse
more
less
farther
（更远的）
further
（进一步的）
older / elder
[w s]
02 比较级常用句型
（1）主语+be/系动词+比较级+than+比较对象。如：
He is taller than his father. 他比他爸爸高。
Our classroom is bigger than theirs.我们的教室比他们的大。
（2）“比较级+and+比较级”结构，意为“越来越…”。如：
Our life is getting better and better. 我们的生活正变得越来越好。
（3）“the+比较级…, the+比较级…”结构，意为“越…, 就越…”。如：
The more you read, the more knowledge you will get. 书看得越多，你获得的知识就越多。
02 比较级总结
1. 两者之间，只能用比较级
Which do you like _______(well), Chinese or English
better
3. adj. 前有 much= a lot, even(甚至), far等来修饰, 则
用比较级
2. than 前面的adj.用比较级
He is _________(slim) than I.
slimmer
1) He is much _______ (good) now(好多了).
better
2) She is much ______________(beautiful)(漂亮的多).
more beautiful
3) He becomes even __________(bad).
worse
Superlative
adjectives
形容词最高级
PART THREE
03 最高级的用法
We use them to compare ___________ things/
people and add _____ before superlatives.
three or more
the
最高级通常用于比较三个或三个以上人/事物;最高级前要用the连接。
同类事物进行比较时，其比较范围用介词of。在同一范围内进行比较时，用介词in。如：
He is the youngest of all the boys. 在所有男孩中他的年龄最小。
Mount Qomolangma is the highest mountain in the world.珠穆朗玛峰是世界上最高的山峰。
03 最高级的构成
构成方法 原级 最高级
longest
fewest
cheapest
nice safe late nicest
safest
latest
big hot thin biggest
hottest
thinnest
pretty unhappy heavy prettiest
unhappiest
heaviest
大部分单音节词在词尾加-est
以字母e结尾的词，加-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-est
以辅音字母+y结尾的双音节词，先改“y”为“i”,再加-est
long
few
cheap
03 最高级的构成
构成方法 原级 最高级
careful clearly dangerous interested most careful
most clearly
most dangerous
most interested
部分双音节词和多音节词在前面加most
03 最高级的构成
不规则 变法 good / well
bad /badly/ill
many / much
little
far
old
best
worst
most
least
farthest
furthest
oldest / eldest
[w st]
03 最高级常用句型
主语+be/系动词+the+最高级+比较范围。如：
The Changjiang River is one of the longest rivers in the world.
长江是世界上最长的河流之一。
03 最高级用法总结
2. adj.前有the 常用最高级
Spring is the ______(good) time to plant trees.
3. the second/third/fourth…+ 最高级
表示“第几……”
best
2) Huanghe is shorter than Changjiang, but longer than
the other rivers in China.
= Huanghe is ______ _______ ________ river in China.
1)Millie is the third _________(tall) in her class.
tallest
the
second
longest
1. 三者或以上用最高级
Which do you like _____(good), Maths, English or PE
best
03 最高级用法总结
5. one of 后面的adj.常用最高级
1)She is one of ____________(pretty) girls.
the prettiest
2) He is one of _________________(popular) teachers in
our class.
the most popular
4. of /among /in +范围，前面的形容词常用最高级
1)He is ___________(tall) of the three/all/us.
the tallest
2) She is ______________(thin) in our class.
the thinnest
3) Peter is ______________(heavy) of/among the six
students.
the heaviest
4) My mother is ____________(busy) in my family.
the busiest
Class Practice
课堂练习
PART FOUR
Adjective Comparative Superlative Adjective Superlative Superlative
clean thin
short sad
cute difficult
happy interesting
lazy good
big bad
Complete the table
Do part A
cleaner
cleanest
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
04 Practice B
Simon is __________ (tall) Sandy.
Peter is __________ (tall) student of the six students.
Sandy is _____________ (heavy) Millie.
Peter is ____________ (heavy) of the six students.
Among the six students, Millie is __________ (slow) swimmer of the six students.
taller than
the tallest
heavier than
the heaviest
the slowest
['sw m ]
n. 游泳者
04 Practice B
6. Amy is ___________ (fast) swimmer of the six students.
7. Millie’s drawing is _______________ (beautiful) Simon’s.
Sandy’s drawing is ___________________ (beautiful)
in her class.
Millie’s English is _____________ (good) Simon’s. Millie’s English is __________ (good) in her class.
more beautiful than
the most beautiful
the fastest
better than
the best
04 几点注意
1. 修饰原级：
very, quite, so, such, much too, too
2. 修饰比较级：
much, a lot , far, even, a little, a bit
3. 易混淆的：
He is _________(tall) of the 3 students.
He is ________ (tall) of the 2 students.
the tallest
the taller
4. 易混淆的：
● He is taller than ________ student in our class.
● He is taller than _____ girl in our class.
A. all the other B. any C. other D. any other
D
B
04 几点注意
5. 为免重复, 在than后常用that(单), those(复), ones等词
来替代前面提到过的名词。
1) The weather there is better than _____ in Nanjing.
A. one B. it C. that D. those
6. 最高级前通常要加the，但是adj.前有序数词，物主代词，指示代词，名词所有格等限定词时，最高级前不加the。
He is _________ teacher.(我们最好的)
our best
2) 小香蕉往往比大香蕉好。
Small bananas are often_______________________.
better than big ones
04 几点注意
--- able
comfortable
suitable
enjoyable
…..
--- ed
tired
bored
excited
interested….
--- ing
tiring
boring
exciting
interesting…
popular
important
often
polite
expensive
clever
cleverer/more clever
cleverest/most clever
7. 加 more/most构成比较级和最高级的几种情况
---ful
careful
beautiful
wonderful….
---ous
dangerous
delicious
generous
famous…
adj. + ly
lovely
carefully
friendly…
Exercises
随堂练习
PART FIVE
05 Exercises-单选
B
C
D
B
A
( ) 1. My mother is _______ in our family.
A.busiest B.the busiest C.busier D.busy
( ) 2. This apple is _______ of all.
A.redder B.the redest C.the reddest D.reddest
( ) 3.Which pen is _______ , this one or that one
A.dear B.dearest C.the dearest D. dearer
( ) 4. Kate is ______ than all the other girls. She is _______ of all.
A.taller , tallest B. taller , the tallest
C. the tallest , tallest D. tallest , the tallest
( ) 5. _______ of the two men is my uncle.
A. The older B. Old C. The oldest D. Oldest
05 Exercises-完成句子
格林先生是这四个人当中最高最胖的。
Mr Green is ______________ and _______________________.
2. 小香蕉往往比大香蕉好。
Small bananas are often _______________________.
3. 我的铅笔比你的短得多。
My pencil is ______________________.
4. 在中国，哪一条河流最长？
Which river is __________________ in China
5. 他的观点比我的新。
His idea is ____________________.
the tallest
fattest of the four
better than big ones
much shorter than yours
the longest
newer than mine
05 Exercises-改错
My cat is more lazier than yours.
He is the taller boy in my class.
The girl is the prettier in my school.
I like this book best than that one.
Jane is the funnyest boy in our class.
tallest
prettiest
better
funniest
Class Over