(共9张PPT)
Unit 7 What's the highest
mountain in the world？
第三课时 Section A（Grammar Focus-4c）
语法精讲
形容词的比较级和最高级
★形容词比较级的句型结构
1. 形容词的比较级＋than＋比较对象。前后相比较的两个事物一定要属于同类，
而且做比较时，一定要避免自身与自身相比。表示一个范围内两事物的比较用
“比较级＋than ＋any other＋单数名词”。
如： He is taller than any other student in his class.
他比班上任何一个学生的个子都高。
2. “as… as…”意为“与……一样……”，其否定形式为“not so/as…as…”，
意为“不及；不与……一样……”。它们也是一种表达比较的形式，注意 as与
as之间要用形容词或副词的原级。
3. “the＋比较级…，the＋比较级…”表示“越……越……”。
如：The more you read，the more you know.
你读书越多，你就知道得越多。
4. “比较级＋and＋比较级”表示“越来越……”。如： Our city is more and
more beautiful.
我们的城市越来越漂亮了。
5. 修饰比较级可用 much，a little，even，still，a lot等。
【注意】当比较级后有“of the two…”之类的短语时，比较级前要加定冠词
the。
6. 选择疑问句中，常用句型：Which/When/Who＋be＋形容词比较级，A or B？
★形容词最高级的句型结构
1. “主语＋be＋the＋形容词最高级＋in/of＋范围”表示“在某范围内
最……”。
2. “one of＋the＋形容词最高级＋可数名词复数”表示“最……的……之一”。
3. “the＋序数词（除了first）＋形容词最高级＋可数名词单数”表示“第几
（大、长等）……”。如： The Yellow River is the second longest river in China.
黄河是中国的第二长河。
4. 选择疑问句中，常用句型：Which/Who…the＋形容词最高级，A，B or C？
【注意】（1）形容词最高级前通常要加定冠词the。但前面若有物主代词、指示
代词或名词所有格等修饰时，不能用定冠词 the。（2）形容词最高级常与介词in
或of引导的短语连用，与in连用意为“在……内”，表示 “在某范围内”，不
一定是同类；与of连用表示“属性”，介词后的名词或代词与句中的主语是同
一类人或物，意为“在某一类中”。
语法精练
Ⅰ.根据句意，用所给词的适当形式填空。
1. There are （few） boys than girls in our class.
2. Skating is （exciting） than swimming.
3. Winter is （cold） season of a year.
4. Who can jump （far） of you three？
5. It is much （hot） today than yesterday.
6. Our city is one of （beautiful） cities in the world.
fewer
more exciting
the coldest
the farthest
hotter
the most beautiful
Ⅰ
Ⅱ
Ⅲ
Ⅳ
Ⅴ
Ⅵ
Ⅶ
Ⅷ
Ⅸ
Ⅹ
Ⅺ
Ⅻ
Ⅱ.根据中文意思，补全英语译文。（每空限填一词，缩写算一词）
7. 熊猫出生时和老鼠一样大。
The panda is big a mouse at birth.
8. 上海的人口比贵阳的人口多很多倍。
The population of Shanghai is many than that of
Guiyang.
9. 在中国共产党的领导下，我们的祖国变得越来越强大。
Under the leadership of the CPC，our country is getting
and .
10. 你能说得更慢些吗？我们听不清。
Can you speak ？ We can't hear clearly.
11. 戴维是我们班第二高的学生。
David is second student in our class.
as
as
times
bigger/larger
stronger
stronger
more
slowly
the
tallest (共38张PPT)
Unit 7 What’s the highest
mountain in the world
第三课时 Section A (Grammar Focus-4c)
Can you translate the following sentences
长江大约长6,300千米。
The Yangtze River is about 6,300 kilometers long.
黄河长5,464千米。
The Yellow River is 5,464 kilometers long.
Review
Can you translate the following sentences
明朝的长城大约有8,850千米长。
The Great Wall in Ming dynasty is about 8,850 kilometers long.
珠穆朗玛峰高8,848.86米，所以攀登起来很危险。
Qomolangma is 8,848.86 meters high and so is very dangerous to climb.
18357089
18,357,089
million
and
eighteen million, three hundred and fifty-seven thousand, and eighty-nine
thousand
1. 从数字右端向左数，每三位数加一个逗点；
2. 第一个逗点前的数为thousand（千）；第二个逗点前的数为million（百万）；
3. 读的时候通常在hundred后加and，如果百位数为0，则在thousand后加and。
长度、宽度、高度、深度的表示法：
老虎路有200米长，而且湿度很重。
Tiger Path is 200 ______ _____ and has a high humidity.
我们走上三层楼，大概10米左右高。
We walk up three floors, which is about ten _______ ______.
那面镜子有两米宽。
The mirror is two _______ ______.
长度、宽度、高度、深度的表示法，有一个专门的结构，那就是“基数词 + 单位词 + 形容词”。
Practise
meters long
meters high
meters wide
教室有10米长。
The classroom is 10meters in length.
这个箱子重9公斤。
The box is 9 kilos.= The box is 9 kilos in weight.
那座桥有三米高。
The bridge is 3 meters in height.
2. 除了以上的表示方法，有时也可以用“基数词 + 单位词 + in + 长度或者重量的名词”来表示长度、宽度、高度、深度。若表示重量，可以用in weight结构。
Practise
Grammar Focus
What’s the highest mountain in the world？ Qomolangma.
How high is Qomolangma？ It’s 8,848.86 meters high. It’s higher than any other mountain.
Which is the deepest salt lake in the world？ The Caspian Sea is the deepest of all the salt lakes.
Did you know that China is one of the oldest countries in the world？ Yes, I did. It’s much older than the US.
1. 原级: as ... as... 像...一样
Tim is as tall as Tom.
2. 比较级 (两者之间)：形容词/副词比较级＋ than...
This box is bigger than that one.
一、形容词和副词的原级、比较级、最高级
3. 最高级(用于三者或三者以上)：
the + 形容词最高级＋of / in ...
Tom is the heaviest in our class.
He is the most popular in our school.
The Caspian Sea is the deepest of all the salt lakes.
二、比较级和最高级的规则、不规则变化
①直接加 -er 或 -est
tall—_____—______ long—______—______
②以不发音的字母e结尾的单词直接加 -r 或 -st
③以“辅音字母+y” 结尾,把y变为i,再加 -er 或- est
nice—______—______
heavy—________—________
taller
tallest
longer
longest
nicer
nicest
heavier
heaviest
④辅元辅，且重读双写辅音字母再加 -er或 -est
⑤部分双音节词和多音节词
比较级：more+多音节形容词副词原级
最高级：the most+多音节形容词副词原级
big—_______—_______
slowly—___________—_____________
beautiful—______________—______________
bigger
biggest
more slowly
the most slowly
more beautiful
the most beautiful
巧记：大big红red胖fat瘦thin湿wet热hot悲sad
原级 比较级 最高级
good / well better best
bad/badly worse worst
many/much more most
little less least
old older/elder oldest / eldest
far farther (更远)/ further (进一步的) farthest /
furthest
不规则变化：两多两好两坏病一少一老一远
1. 用于两者之间，但上下文暗示是二者时可单独出现。
My sister is tall, but my aunt is taller.
三、比较级考点
2. ...数量＋比较级＋ than...
This elephant is 200cm taller than this panda.
这头大象比这只熊猫高200 厘米。
3. 两个比较对象是同类
My hair is longer than yours (= your hair).
I have longer hair than you.
The weather in Beijing is colder than that in Nanchang in winter.
冬天，北京的天气比南昌的（天气）更冷。
His stories are more interesting than those I told.
他的故事比我讲的（故事）更有趣。
4. 表示对两个人或事物进行对比，并进行选择时，
Which / Who + be + 形容词比较级，A or B
Which is better, the blue one or the red one
5. 越来越…
比较级 + and + 比较级
more and more +多音节词和部分双音节词原级
It’s getting colder and colder.
Mary becomes fatter and fatter.
The little girl is more and more beautiful.
6. the + 比较级…, the + 比较级… 越…，就越…
The more books you read, the more knowledge you will get.
The more you exercise, the healthier you will be.
The more carefully you work, the better results you will get.
7. much, a lot, a little, a bit, even, still等来修饰形容词比较级表程度。
注意: 比较级不能用very, so, too, quite等修饰。
He is much more serious than Sam.
I’m a little taller than Amy.
8. be the + 比较级 + of the two … 两者中更…的
Liu Li is the taller of the two girls.
刘丽是这两个人中较高的那个。
Mary is the smarter of the twins.
Mary是双胞胎中更聪明的那个。
1. 形容词最高级前要加the, 副词前可省略
She always gets up the earliest in the class.
2. 当最高级前有物主代词或名词所有格时，不加the
Tuesday is her busiest day.
Tom is Lucy’s best friend.
3. 最高级后用介词of / among 表示同类比较，用in表示范围比较
Tom is the tallest of the three.
Tom runs the fastest in our class.
四、最高级的用法
4. one of the+形容词最高级+名词复数，表示“最…之一”
Jack is one of the tallest students of the three.
5. 最高级前可加序数词表示第几
The Yellow River is the second longest river in China.
6. 表示三者或三者以上比较，可用Which/Who…+最高级, A, B or C
Who is the tallest, Tom , Mike , or Jack
7. 比较级表示最高级的含义
Lin Tao is the tallest student in our class.
=Lin Tao is taller than any other student in our class.
=Lin Tao is taller than the other students in out class.
An elephant is taller than any cat.
形容词比较级+ than the other+ 可数名词复数
than any other+ 可数名词单数
than any+ 可数名词单数（主语不在这范围内)
8. be+ the+ 最高级+名词＋I have seen / heard / met / read.
我看过的、听过的、遇见过的、读过的最…的
She is the most beautiful girl (who / that) I have met.
I have never seen / heard / met / read a + 比较级 + n.
我从未看过、听过、遇见过、读过比…还…的
I have never met a more beautiful girl than her.
This is by far the best song that I’ve ever heard.
这是我听过的最好听的歌。
This tree is almost / nearly the tallest one.
这棵树几乎是最高的。
9. 最高级的修饰语
by far( 最；很), nearly( 几乎), almost(几乎)以及序数词(first, second…)等。
1. A+ be as+ 原级 + as + B. A和B一样…
This box is as big as mine. 这箱子和我的一样大。
He ran as fast as Tony. 他跑得和托尼一样快。
2. A+ be not so / as + 原级 + as + B. A不如B…
This box is not as big as mine. 这箱子不如我的大。
He did not run as fast as Tony. 他跑得不如托尼快。
五、同级比较句型
六、倍数表达
A+ 倍数+ adj./adv.比较级+ than B A比B大(长、宽…)多少倍
A+ 倍数+ as+ adj./adv.原级+ as B A的…是B的多少倍
Tom runs three times faster than David.
汤姆跑得比大卫快三倍。
Asia is four times as large as Europe.
亚洲面积是欧洲的四倍。
4a
Fill in the blanks with the correct forms of the words in the box.
big
much
popular
long
old
high
1. The Amazon River is one of the ______ rivers in the world.
It’s a little ________ than the Yangtze River.
2. Qomolangma is 8,848.86 meters _______. It’s one of the most _______ places for serious mountain climbers.
3. No ocean in the world is as ________ as the Pacific Ocean.
4. Although Japan is _________ than Canada, it is _________ smaller.
longest
longer
high
popular
big
older
much
4b
Write two comparisons about two topics. Write true facts.
e.g. Two river: _____________ and ______________
_____________________________________
_____________________________________
_____________________________________
_____________________________________
Two cities: ___________ and ___________
1. ___________________________________
2. ___________________________________
_____________________________________
the Yangtze River
the Amazon River
The Yangtze River is almost as long
as the Amazon River.
The Amazon is longer than the Yangtze, but the Yangtze is the longest river in China.
Singapore Kuala Lumpur
Kuala Lumpur is as modern as Singapore.
Singapore is bigger than Kuala Lumpur and
has a larger population than Kuala Lumpur.
Two animals: ___________ and _________
1. ___________________________________
2. ___________________________________
_____________________________________
Monkey Dog
A dog is bigger than a monkey.
A monkey is smaller than a dog, but it
climbs a tree faster than a dog.
4c
Write five questions using
comparisons. Then ask your partner your questions.
1. _______________________________________
2. _______________________________________
3. _______________________________________
4. _______________________________________
5. _______________________________________
What is the highest building in our city
What is the busiest subway station in our city
What is the largest shopping mall in our city
Which is the biggest park in our city
Which is the longest road in our city
1.Hainan is a very large Island .It is the second _________
(large)island in china.
2.Our teacher is as ______ (busy)as before.
3.He is ______________ (careful) among us.
4.Li Lei jumped far ______ (far) than Jim.
5.The busier he is, the ________ (happy) he feels.
6.I think Yao Ming is one of ____________ (hot) basketball
players in NBA.
busy
the most careful
farther
happier
largest
the hottest
Ⅰ.用括号内所给词的适当形式填空
Exercises
（ ）1. He was advised to eat fewer hamburgers and drink
_______ cola to keep fit.
A. much B. more C. fewer D. less
D
（ ）2. — Many boy students think science is ___ English.
—I agree. I’m weak in English.
A. much difficult than B. so difficult as
C. less difficult than D. more difficult than
C
Ⅱ.单项选择
( )3. —What is _____ animal on land —It is the elephant.
larger B. the largest C. smaller D. the smallest
( )4. This film is _____ for us to see than that one.
A. much interesting B. much more interesting
C. interesting D. more much interesting
( )5. —Many boy students think maths is _____ English.
—I agree. I'm weak in English.
A. much difficult than B. so difficult as
C. less difficult than D. more difficult than
B
B
C
( )6. Canada is _____ country in the world.
A. the second largest B. second largest
C. the second large D. second large
( )7. Fishing is one of _____ activities among the middle-aged people.
A. popular B. more popular
C. most popular D. the most popular
A
D
( )8. The population of China is ____ than ____ country in the world.
A. much larger; the other B. large; any other
C. much larger; any other D. larger; the other
( )9. The _____ you work at your lessons, the _____ results you will get.
A. hard; good B. harder; good
C. hard; better D. harder; better
C
D
( )11. Tina is as _____ as her sister, Tara.
A. outgoing B. more outgoing C. the most outgoing
( )12. —Roy never likes junk food.
—Neither do I. That's probably why I'm becoming _____ now.
A. healthy and healthy B. more and more healthily
C. weaker and weaker D. healthier and healthier
( )13. —Are you satisfied with the result of the competition
—Not, not at all. I can't have ______.
A. a better one B. the worst one C. a worse one
A
D
C
2. The Atlantic is __________________ ocean in the world. ( 第二大洋）
3. Lin Tao is __________________________ in the class because he never gets to school on time. （最懒的学生之一）
4. Edison was_________________________in the world. (最伟大的发明家之一）
one of the laziest students
one of the greatest inventors
The Yangtze River is ________________river in the world. (第三长河）
the third longest
the second biggest
Ⅲ.翻译句子：
1.Review the grammar we’ve learned today.
2.Preview the words in Section B.
Homework
