八下 Unit 7 What's the highest mountain in the world? Section A Grammar-4c (共26张PPT)

(共26张PPT)
What’s the highest mountain in the world
————————————————————————————————
Section A (GF -4C)
What’s the highest mountain in the world Qomolangma.
How high is Qomolangma It’s 8,844.43 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.
Grammar Focus
Fill in the blanks according to the text.
1. — 世界上最高的山峰是什么？— 珠穆朗玛峰。
— What’s ___________ mountain in the world
— Qomolangma.
the highest
2. — 珠穆朗玛峰有多高？
— 它高8,848.86米。它比别的山都高。
— How high is Qomolangma
— It’s ___________________. It’s ______ than
any other mountain.
8,848.86 meters high
higher
3. — 世界上最深的咸水湖是哪个？
— 里海是世界上最深的咸水湖。
— Which is ___________ salt lake in the world
— The Caspian Sea is __________________________.
4. —你知道中国是世界上最古老的国家之一吗？
— 我知道。中国比美国古老得多。
— Did you know that China is ______________
countries in the world
— Yes, I did. It’s __________ than the US.
one of the oldest
the deepest
the deepest of all the salt lakes
much older
Grammar
回顾
形容词和副词通常有三种级别：
原级（Positive form）：没有比较含义，“……”；
比较级（Comparative form）：两者间比较，“更……”；
最高级（Superlative form）：三者及三者以上比较，“最……”。
注意：某些形容词和副词只用原级，如：perfect，excellent，dead等。
1．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，而且作比较时，一定要避免自身与自身相比。表示一个范围内两事物比较，用“比较级＋than＋any other＋单数名词”。
如：He is more careful than any other student in his
class.
他比班上任何一个学生都认真。
(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。
2．比较级的特殊句型
the＋比较级，the＋比较级“越……越……” The busier we are，the unhappier we will be.
比较级＋and＋比较级“越来越……” Our country is getting stronger and stronger.
比较级前可以用much，a little，a bit，even等修饰。
如：The shoes are a little bigger for me.
对我来说，这双鞋有点儿大。
【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。
在选择疑问句中两者进行比较，常用句型：
Which/When/Who＋be＋形容词比较级，A or B
3．形容词最高级的句型结构
4．最高级的特殊句型
疑问词＋be＋the＋最高级 Which is the biggest，the sun，the moon or the earth？
the＋序数词＋最高级“第几……” The Yellow River is the second longest river in China.
one of the＋最高级＋复数名词“最……之一” Shanghai is one of the biggest cities in the world.
“主语＋be＋the＋形容词最高级＋in/of＋范围”表示“在某范围内最……”。
(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。
【注意】
(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”。
1) Qomolangma is ______than any other
mountain in the world.
2) The Sahara is __________ desert in the world.
3) The Caspian Sea is __________ of all the salt
lakes.
4) The Nile is ___________ river in the world.
5) What’s __________ mountain in the world
Fill in the blanks.
higher
the biggest
the deepest
the longest
the highest
6) China has ____________ population in the world.
7) It’s a lot ________ than the population of the US.
8) China is over 5000 years old. It has a _______ ______ history than the US.
9) China is almost as ______ as the US, and it is the _________ country in Asia.
the biggest
bigger
much longer
big
biggest
10) — Did you know that China is one of
__________ countries in the world
— Yes, I did. It’s _______ _______ than my
country.
11) This makes it __________ wall in the world.
12) It’s ______________ part.
13) One of the world’s ______________ sports
is mountain climbing, and one of
_______________ places for this is the
Himalayas.
the oldest
much older
the longest
the most famous
most dangerous
the most popular
hundred
Can you read these large numbers
2674
2, 674
two thousand six hundred and seventy-four
1. 从数字右端向左数，每三位数加一个逗号；
2. 第一个逗号前的数为thousand（千）；
3. 读的时候通常在hundred后加and。
thousand
and
大数字的表达与读法
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，每三位数加一个逗号；
2. 第一个逗号前的数为thousand（千）；第二个逗号前的数为million（百万）；第三个逗号前的数为 billion（十亿）
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。
1. 英语没有“万”这个单位，要表示“万”须
借用 thousand，如“一万”用“十个千
（ten thousand）” 表示，“十万”用“百个千
（one hundred thousand）”表示。
2. 在hundred后通常加上连词and。若读数中百位
数为0，则在thousand后加and。
注意：
5,764
five thousand, seven hundred and sixty-four
88,649
eighty-eight thousand, six hundred and forty-nine
265,468
two hundred and sixty-five thousand, four hundred and sixty-eight
19,357,095
nineteen million, three hundred and fifty-seven thousand, and ninety-five
4a
Fill in the blanks with the correct forms of the words in the box.
1. The Amazon River is one of the _________ rivers in the world. It’s a little ________ than the Yangtze River.
2. Qomolangma is 8,844.43 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.
big
much
popular
long
old
high
longest
longer
high
popular
big
older
much
太平洋
n. 大海，海洋
Look at the table below and make sentences by using comparatives and superlatives.
the Nile River
6,671 km
the Amazon River
6,480 km
the Yangtze River
6,300 km
the Yellow River
5,464 km
The Nile River is the longest river in the world.
The Amazon River is one of the longest river in the world.
The Amazon River is a little longer than the Yangtze River.
The Nile River is much longer than the Yangtze River.
4b.Write two comparisons about two topics. Write true facts.
e.g. Two rivers: ________________ and ____________________
__________________________________________
__________________________________________
__________________________________________
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.
4b.Write two comparisons about two topics. Write true facts.
Two cities: ___________ and _______________
1. ___________________________________
2. _____________________________________
_______________________________________
Two animals: ___________ and _________
1. ___________________________________
2. ___________________________________
_____________________________________
Singapore Kuala Lumpur
Kuala Lumpur is as modern as Singapore.
Singapore is bigger than Kuala Lumpur and has a larger population than Kuala Lumpur.
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 largest shopping mall in our city
Which is the biggest park in our city
Which is the longest road in our city
What is the highest building in our city
What is the busiest subway station in our city
Exercises
一、单项选择。
1.China has a ______ population than America.
A. more B. much more C. much large D. much larger
2.Xi’an is one of _____ in China.
A. more famous city B. most famous cities
C. the most famous cities D. much more famous city
3.China is the third _____ country in the world.
A. large B. largest C. larger D. as large as
D
C
B
4.Staying with families and friends in our free time is one of _____ things.
A. the happiest B. happier C. the happy D. happiest
5.Qomolangma is higher than _____ in the world.
A. the other mountain B. another mountain
C. any other mountain D. any mountains
6.—I think history is more useful than physics.
—In my opinion, history is______ physics. They are both important.
A. as useful as B. not so useful as
C. less useful than D. the most useful of
A
C
A
7.The number “23,456” can be read as “ ”.
A. twenty-three thousand, four hundred and fifty-six
B. twenty-three thousand and four hundred fifty-six
C. twenty-three thousand and four five six
D. twenty-three thousand, four five six
A