Unit 7 What’s the highest mountain in the world Section B Grammar课件(共38张PPT)

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Unit 7 What’s the highest mountain in the world Section B Grammar课件(共38张PPT)

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(共38张PPT)
Grammar
原级 比较级 最高级
比较等级分类
原级
比较级
最高级
一、原级
1
原级的结构
as … as
+adj. / adv.+
和…一样…
原形
He is as tall as Mary.
他和Mary 一样高。
He runs as fast as Mary.
他跑得和Mary 一样快。

not so … as
一、原级
1
原级的结构
not as … as
+adj. / adv.+
不如……
原形
He is as tall as Mary.
他不如Mary 高。
He runs as fast as Mary.
他跑得不如Mary 快。

He is not as tall as Mary.
He _______________ as fast as Mary.
does not
adj.
思考:tall, fast 的词性是什么?为什么?
adv.
一、原级
2
原级的倍数
as … as
+adj. / adv.+
分倍数
原形
This pencil is as long as that one.
这只铅笔是那只的2倍长。
这只铅笔是那只的3倍长。

This pencil is __________ as long as that one.
twice
思考1:4倍长?
This pencil is __________ as long as that one.
three times
这只铅笔是那只的1/2长。
This pencil is __________ as long as that one.
one second
这只铅笔是那只的2/3长。
This pencil is __________ as long as that one.
two thirds
思考2:分数表达?
子基母序,子>1,母+s
They speak English just as________as native speakers do.
A.good B.better C.well
C

They doesn’t dance so ______as I do.
A.good B.better C.well
C
more practice P44
二、比较级
He is shorter than me.
他 是 更矮的 比 我。
He runs faster than Mary.
他 跑得 更快 比 Mary。
他 比我矮。
他 比Mary跑得快。
思考1:shorter? faster
概念理解:两者比较
fast
faster
fastest
1). 单音节词直接加er→est(单音节:一个元音)
2).不发音e结尾,只加r→st(如nice-nicer-nicest)
比较级最高级规则变化
1
big
bigger
biggest
3). 重读闭音节,双写尾字母 +er→est。(元音重读’+最后辅音)
比较级最高级规则变化
1
big, fat, mad, glad, sad, wet, hot, red, thin (大胖神经高兴伤心湿红热瘦)
heavy
heavier
heaviest
4).以辅音字母加y结尾, 变y为i , +er→est。
比较级最高级规则变化
1
expensive
more expensive
most expensive
5). 多音节和部分双音节的词,比较级加more→最高级加 most
比较级最高级规则变化
1
类别 构成方法 原级 比较级 最高级
tall
taller
一般直接加-er/-est
tallest
nice
nicer
以不发音的e结尾加-r/-st
nicest
以重读闭音节结尾且
末尾只有一个辅音字母
双写辅音字母加-er/-est
biggest
happy
happier
辅y结尾变y为i加-er/-est
happiest
单音节和
少数双音节词
比较级前加
more/the most
more
delicious
多音节和
部分双音节词
the most
delicious
big
bigger
delicious
比较级最高级规则变化
1
由"动词+后缀-ing/-ed"构成的形容词,在词前加most构成最高级:
变形规则
1
interesting-most interesting; bored-most bored
由"形容词+后缀-ly"构成的副词,在该副词前加most构成最高级:
2
slowly-most slowly; happily-most happily
“-ful/-less"构成的形容词,在词前加most构成最高级:
3
careful-most careful; useless-most useless
注意:friendly和early需把y变为i,再加est
shy特殊记:shyer--shyest
比较级最高级
2
不规则变化



bigger biggest
more boring most boring
busier busiest
more difficult most difficult
easier easiest
fatter fattest
finer finest
better best
greater greatest
happier happiest
healthier healthiest
more interesting most interesting
older/elder oldest/eldest
more relaxing most relaxing
shorter shortest
small
smaller smallest
tidier tidiest
more careful most careful
better best
less least
二、比较级
结构
比较级 + than
比…怎么样…
He is shorter than me.
他 是 更矮的 比 我。
He runs faster than Mary.
他 跑得 更快 比 Mary。
1
他 比我矮。
他 比Mary跑得快。
( 比… )
二、比较级
结构
比较级 and 比较级
( 越来越… )
I am getting fatter and fatter.
我变得 越来越胖。
She is getting __________________________________.
她变得越来越漂亮。
2

more beautiful and more beautiful
more and more beautiful
Clothes are more and more expensive.
衣服是越来越贵。
more and more 原级
只用于以“more”构成比较级的词 
二、比较级
结构
the +比较级 , the +比较级
( 越… , 越… )
The harder you study, the more you will get.
你学习越努力,你将得到越多。
The more careful you are,the fewer mistakes you’ll make.
你越仔细,你将犯越少的错误。
3
二、比较级
结构
the +比较级 +of the two(boys…)
(两者中比较….的一个 )
Mike is the fatter of the two (boys).
Mike是两个男孩中较胖的一个。
This one is the more beautiful of the the two pictures.
这个是两个图片中较漂亮的一个。
4
Mike Mark
二、比较级
结构
Which/Who +be+形容词/副词比较级, 1 or 2
(哪一个更····)
Which box is bigger, red one or white one
哪一个更大,红色的还是白色的?
Who is taller , Peter or Tom
谁是更高的,Peter 还是Tom
5
二者比较
Peter
Tom
二、比较级
结构
比较级+than any other +单数名词
(比其他···· )
6
同一范围,other排除自己
Tom is taller than any other boy in his class.
Tom 比班级的其他男孩高。
Tom is taller than any girls in his class.
Tom 比班级的女孩高。
比较级+than any +复数名词
不同范围,无需other排除
二、比较级
结构
比较级+than any other +单数名词
(比其他···· )
6
同一范围,other排除自己
比较级+than any +复数名词
不同范围,无需other排除
eg. Spring is the best season of the year.
=Spring is better ______ ______ _______ season of the year.
=Spring is better ______ _____ _______ seasons of the year.
than
any
other
than
the
other
比较级+than the other +复数名词
最高级+范围
二、比较级
结构
倍数+ 比较级 +than
(倍数表达)
Ben is twice taller than Judy.
Ben 是Judy 的两倍高。
This room is three times bigger than that one.
7
这个房间是那个房间 的三倍大。
二、比较级
结构
修饰+ 比较级 +than
(比较级的修饰)
Tom is much taller than Judy.
Tom 比Judy 高得多。
Tom looks even younger than before.
8
Tom 看起来甚至比以前更年轻。
much/a lot/far …的多
a little/a bit …一点儿,
even甚至,
yet更,还要,
still仍然。
It is a little colder than the day before yesterday.
今天比昨天冷一点儿。
二、比较级
结构
为避免重复,than后常用 that/those等词替代前面提到过的名词。that代替可数名词单数和不可数名词,those代替复数名词.
(代词替换)
The weather in Harbin is colder than that in Beijing.
The teachers in No.2 School are younger than those in No.1 School.
9
指代
指代
不可数
复数
1.My brother is ________ than me. He makes people laugh a lot.
A.funny B.funnier C.the funniest
B
2.Lingling comes home ________ than before this term. She doesn't have so many classes in the afternoon.
A.early B.earlier C.late D.later
B
3.The population of Shanghai is ________ than________ Dalian.
A.larger; in B.larger; that of C.much more; that of D.bigger; in
B
4.There will be _______ jobs for people because some robots will do the same jobs as people.
A.many B.more C.fewer D.fewest
C
5.The students in Class 2 are better at English than ____in Class 1.
A.this  B.one C.that  D.those
D
二、最高级
Tom is the tallest of them.
Tom是 最高的 他们中。
Ben is the fattest in his class.
Ben 是他班级里最胖的。
三者(三者以上)比较
结构
the +最高级 +of/in 范围
1
( 最… )
Tom Lucy Ben Mary
Mary runs the fastest of all.
Mary 在所有人中跑得最快。
思考:tall, fast 词性?
adj.
adj.
adv.
( )
副词可省
对象of/among
单位或场所in
二、最高级
Who is the tallest, Tom, Lucy or Ben
谁是最高的,Tom, Lucy还是Ben
Which hairstyle do you like best, Lucy’s, Tom’s or Mary’s
三者(三者以上)比较
结构
Who/Which…the 最高级,1,2 or 3
2
( 谁/哪个 最… )
Tom Lucy Ben Mary
哪个发型最喜欢,Lucy的,Tom的还是Mary的?
Who runs the fastest, Lucy, Ben or Mary
谁跑得最快, Lucy,Ben还是Mary
二、最高级
Shanghai is one of the biggest cities in our country.
上海是我们国家最大的城市之一。
三者(三者以上)比较
结构
one of the +形容词的最高级+可数名词复数+ 谓(单数)
3
(最……的……之一)
二、最高级
The Yellow River is the second longest river in China.
黄河是中国第二长的河流。
三者(三者以上)比较
结构
the + 序数词 + 最高级 + 名词单数
4
(第……的……)
次最高级
二、最高级
He is my best friend.
三者(三者以上)比较
注意
最高级前有物主代词,名词所有格等词修饰时,不加the
Who runs (the) fastest, Tom, Jack or Jerry?
副词最高级前可以省略the
1.Nanjing isn’t so large ____ Shanghai, however, it’s the second ___ city in East China.
A. like; largest B. as; largest C. like; large D. as; large
B
2.Putting out forest fire is regarded as one of _______ problems in the world.
A. difficult B. more difficult C. most difficult D. the most difficult
3.—Which place is ____ in China, Guilin, Xi 'an or Tianjin — I think Guilin is.
A. popular B. more popular C. most popular D. the most popular
B
4.As we all know,the Yellow River is one of ______ rivers in our country.
A. long  B. longer C. longest D. the longest
D
5.Of all the girls, Lily danced __________.She won the first prize.
A.good B.well C.best D.better
C
D
写出下列形容词的最高级。
1.short —__________ 2. thin — __________ 3. early —__________
4. sad — __________ 5. fine — __________ 6.fat — __________
7. cool —__________ 8. big — __________ 9. wet — __________ 10. dry — __________ 11. pretty __________ 12.bad— __________
13. good/ well— __________ 14. popular — __________
the shortest
the thinnest
the earliest
the most sad
the finest
the fattest
the coolest
the biggest
the wettest
the driest
the most pretty
the worst
best
the most popular
写出下列形容词的比较级。
1.short —__________ 2. thin — __________ 3. early —__________
4. sad — __________ 5. fine — __________ 6.fat — __________
7. cool —__________ 8. big — __________ 9. wet — __________ 10. dry — __________ 11. pretty __________ 12.bad— __________
13. good/ well— __________ 14. popular — __________
shorter
thinner
earlier
more sad
finer
fatter
cooler
bigger
wetter
drier
more pretty
worse
better
more popular
特殊 比较级 最高级
good/well
better
bad/badly/ill
worse
many/much
more
little
less
old
older
elder


far


farther
further
best
worst
most
least
oldest
eldest
farthest
furthest
不规则变化
比较级最高级
2

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