Unit7 What's the highest mountain in the world? SectionA Grammar Focus-4c 课件(共27张PPT)

(共27张PPT)
课前准备：
请大家准备好学习用品，把昨天所学课文读两遍。
复习昨日笔记，课堂开始后进行点名抽查。
Revision
1.随便做某事
2.最多的人口
3.保护某人免受某物伤害
4.据我所知
5.今天的长城之旅
6.对…感到惊叹
feel free to do
the biggest/ largest population
protect sb from sth
(名词：protection)
4. as far as I know
today’s Great Wall tour （游客tourist）
be amazed at….（通常形容人）
amazing(通常形容物)
Revision
1.绵延
2.中国西南部
3.吸入
4.成功做某事
5.挑战自我
6.面对困难
7.实现某人的梦想
8.大自然的力量
9.强迫某人做某事
10. 冒着生命危险
11. 放弃做某事
12. My favorite subjects _________ math and art.
I like many subjects, _________math and art.
math and art _________.
run along
the southwestern part of China
take in
succeed in doing (名词success;形容词successful；副词successfully)
challenge oneself
in the face of difficulties
achieve one’s dream(s)= realize one’s dream(s)
the forces of nature
force sb to do
risk one’s life (lives)
give up doing
include
including
included
Unit 7
What’s the highest mountain
in the world
Section A GF-4c
1.掌握新单词: ocean 海洋，大海 the Pacific Ocean 太平洋
学习目标
2.能正确使用比较等级谈论事物 。
Eg.
The Yangzi River is almost as long as the Amazon River.
Do you know that China is one of the oldest countries in the world
It’s much older than the US.
Qomolangma is 8,848,86 meters high.
It’s higher than any other mountain.
Do you remember these numbers
8,848.86
9,600,000
1,025
6,671
读作：six thousand, six hundred and seventy-one
读作：one thousand and twenty-five
读作：eight thousand, eight hundred and forty-eight, point eight six
读作：nine million, six hundred thousand
1.千位及千位以上数字的表达：以三位数为一个单位，每三位数用“，”隔开。
2.逗号读法:朗读时，将每三位数看做一个单位，依次为thousand千, million百万，billion十亿。每个单位按照百、十、个位向下读，其中百位到十位之间要加入 and。小数点读point。
Can you tell me some facts using the numbers
8,848.86
9,600,000
6,671
1,025
Qomolangma is meters high.
The Caspian Sea is meters deep.
The Nile is meters long.
The Sahara is square kilometers in size.
基数词 + 单位词（meters，kilometers, square kilometers） + 形容词（long, wide, high, deep等）
基数词 + 单位词 + in + 名词（length, width, height, depth, size等）
询问： How + long (wide, high, deep, big…) …
试着造句来描述长,宽,高,深…吧
The is 2 .
e.g. The basketball player is 2 meters tall.
The river is about 2 meters wide/deep.
The mountain is about 2 thousand meters high.
The river is about 2 kilometers long.
长、宽、高、深的表达法： 基数词+度量词+形容词（long, wide, high, deep等）。当基数词大于1时，度量词用复数形式。
Brainstorm
1. 世界上哪座山最高？
What’s the _______ mountain in the world
2. 珠穆朗玛峰最高。 Qomolangma.
3. 珠穆朗玛峰多高？ ____________ is Qomolangma
4. 它高8,848.86米。它比任何一座山都高。
It’s 8,848.86 meters _____. It’s _______ than ____________mountain.
5. 世界上哪一个咸水湖最深？
Which is the _________ salt lake in the world
6. 在所有的咸水湖中里海最深
The Caspian Sea is the ______________the salt lakes.
7. 你知道中国是世界上最古老的国家之一吗
Did you know that China is one of the______________ in the world.
8. 是的。它比美国历史悠久的多。
Yes, I did. It’s _____________ than the US.
highest
How high
high
higher
any other
Presentation
deepest
deepest of all
oldest countries
much older
Observe and learn
P52
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.
比较级和最高级的构成
1. 规则变化
单音节和部分双音节词 多音节词和部分双音节词
一般在词尾直接加 er或-est 以e结尾的，加-r或 -st 以“辅音字母+y”结尾的，改y为i加-er或-est 重读闭音节以一个辅音字母结尾的，双写这个辅音字母后加 -er或-est 在单词前加 more构成比较级，加most构成最高级
long→longer→longest nice→nicer→nicest heavy→heavier→heaviest big→bigger→biggest beautiful→more beautiful→most beautiful
原级 比较级 最高级
good / well better best
bad 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
比较级的特殊用法
Qomolangma is higher than any other mountain in the world.
=Qomolangma is higher than all the other mountains in the world.
=Qomolangma is the highest mountain in the world.
用比较级表达最高级
主+谓+形容词或副词比较级+than+any other+名词单数
主+谓+形容词或副词比较级+than+(all)the other+名词复数
thin
fat
They are getting fatter and fatter.
比较级 and 比较级：越来越…
The more they eat, the fatter they will be.
the+比较级+（名词）+主+谓，the +比较级+（名词）+主+谓。
越…，就越…
8848.86
1532.7
Qomolangma is higher than Mount Tai.
Qomolangma is much/a lot higher than Mount Tai.
表达程度
主+谓+(a lot,much,a little, a bit, far, even)+比较级+than+其他
The Sahara is as big as China.
as+形容词/副词原级+as 表示双方在程度、性质、特征等方面一样。
The Sahara
形容词和副词的比较级
构成
规则变化
不规则变化
加后缀 -er
前面加 more
比较级表示最高级
比较级+than any other+可数名词单数
比较级+than the other+可数名词复数
可用于修饰形容词和副词比较级程度的副词（短语）有： much, a little, even, a lot, a bit, far等。
形容词和副词的原级
as+形容词/副词原级+as 表示双方在程度、性质、特征等方面一样。
Summary
最高级的特殊用法
1.（the + ）最高级 + in/of 短语,该结构意为“……中最……的”。
I think spring is the best time of a year.
Tom works (the) hardest in Class 3.
2. one of the + 最高级 + 可数名词复数 + in/of 短语, 意为“……中最……的……之一”。
Hangzhou is one of the most beautiful cities in the world.
3. the + 序数词 + 最高级 + 可数名词单数 + in/of 短语, 意为“……在……中是第几……的……”（从第二开始）。
China is the third largest country in the world.
4. Which/Who … + 最高级, A, B or C , 意为“A，B，C中，哪个/谁最…？”。
Which is the biggest, Beijing, Shanghai or Guangzhou
【特别提醒】最高级前有物主代词、名词所有格等修饰时，其前不加the。
The Yangtze River is China’s longest river.
形容词和副词的最高级
构成
规则变化
不规则变化
加后缀 -est
前面加 most
用法
(the+)最高级+in/of短语
one of the+最高级+可数名词复+in/of短语
the+序数词+最高级+可数名词单+in/of短语
Which/Who…+最高级, A, B or C
【特别提醒】最高级前有物主代词、名词所有格等修饰时，其前不加the。
Summary
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.
Fill in the blanks with the correct forms of the words in the box.
4a
big
much
popular
long
old
high
longest
longer
high
popular
big
older
much
太平洋
n. 大海，海洋
亚马孙河
Write two comparisons about two facts. Write true facts.
4b
Compare two cities
Cities Population Area (面积) History
Nanchang 5,545,500 7,402 square kilometers Over 2,200 years old
Xi’an 10,003,700 10,752 square kilometers Over 3,100 years old
1.___________________________________________________
2.___________________________________________________
Xi’an has a larger population than Nanchang.
Xi’an is much older than Nanchang.
Compare two animals
1.___________________________________________________
2.___________________________________________________
Animals Weight (体重) life (寿命) Running Speed
（奔跑速度）
Elephant About 5,000 kilos About 60 years About 50 km/h
Lion About 180 kilos About 20 years About 65 km/h
An elephant is much heavier than a lion.
An elephant lives longer than a lion.
Write five questions using a comparison. Then ask your partner your questions.
4b
1.___________________________________________________
2.___________________________________________________
3.___________________________________________________
4.___________________________________________________
5.___________________________________________________
What is the highest building in our city
What is the largest fresh-water lake in Jiangxi
Which city in Jiangxi has the most famous porcelain(瓷器)
What is the highest mountain in Yichun
Which city in Jiangxi has the largest population
Summary
一、形容词与副词的比较级和最高级
比较等级的构成
比较级的用法
最高级的用法
二、大数字的表达与读法
1000以上的基数词的表示法
Homework
1. 完成导学案P 116-118 第三课时。
2.背诵Grammar Focus.