Unit 7 What's the highest mountain in the world? Section A 2d & Grammar Focus 4a-4c 课件(共53张PPT)

(共53张PPT)
What’s the highest mountain in the world
初中英语人教版 八年级下
Grammar Section A 2d &
Grammar Focus 4a-4c
Unit 7 语法课
1. 通过观察比较，总结含有形容词最高级的特殊疑问句用法和回答。
2. 通过小组比赛，能够在竞争中正确运用形容词和副词的比较级、最高级用法。
教学目标
情景导入
part 1
Let’s warm up.
Today, we will visit a great
man-made object ---- The Great Wall.
Listen and find out the facts of the Great Wall.
3. Which part of the Ming Great Wall is the most famous
2. How long is the wall
1. What is the longest wall in the world
Let’s answer.
The Great Wall
8,850 kilometers long
Badaling
Let’s answer.
语法探究
part 2
Let’s think and say.
What is __________ mountain in the world
the highest
How do we use superlatives
Let’s think and say.
Can you ask similar questions for the facts of the following picture
What is ___________ salt lake in the world
the deepest
Let’s think.
How do we write questions using superlatives
…
Let’s summarize.
句型结构：
疑问词+be+形容词 / 副词最高级+范围
What is the longest wall in the world
What is the deepest salt lake in the world
Who is the tallest student in our class
What is the most popular cinema in the world
疑问词
形容词最高级
范围（in / of 短语）
Let’s talk.
Ask questions using superlatives.
Work in 4, then make sentences using superlatives.
You can start like this:
1. What is the highest building in our city
high.
highest
Let’s think and answer.
How high is Qomolangma
It’s about 8848.86 kilometers
It’s one of the _______ mountains in the world.
Let’s think and answer.
2. How long is the wall
It’s about 8,850 kilometers .
It’s one of the ________walls in the world.
longest
long
Let’s think and answer.
2. How deep is the Caspian Sea
It’s about 1,025 kilometers .
deep
It’s one of the ________ salt lakes in the world.
deepest
Let’s think.
How do we ask about length, height and depth …
We use “How + ________”.
形容词
Let’s think.
How do we answer such questions
…
Let’s summarize.
长宽高的表达：数词+单位+long / high / deep
It’s about 8,850 kilometers long.
It’s about 8,848.86 kilometers high.
It’s about 1,025 kilometers deep.
The Great Wall is one of the longest walls in the world.
Qomolangma is one of the highest mountains in the world.
The Caspian Sea is one of the deepest salt lakes in the world.
Let’s summarize.
表示 “最 …… 之一”：
One of + _______________ + ________________
the+最高级
可数名词复数
Let’s talk.
Use “one of …” to describe your classmates.
You can start like this:
XX is one of the most hard-working students in our class.
Let’s think and talk.
The Yangtze River is almost as long as the Amazon River.
The Yangtze River is not as long as the Amazon River.
Which one is true
The Yangtze River
The Amazon/ m z n/ River
Let’s think and talk.
Japan is not as big as China.
China is almost as big as Japan.
Let’s summarize.
The Yangtze River is almost as long as the Amazon River.
Japan is not as big as China.
表示：…... 和 ..…. 一样： as+__________________+as
表示：前者不如后者： not as+_________________+as
形容词/副词原级
形容词/副词原级
4a. Fill the blanks with correct forms.
big, much, popular, long, old, high
The Amazon River is one of the __________ rivers in the world. It’s a little__________ than the Yangtze River.
Qomolangma is 8,844.43 kilometers ________. It’s one of the most ________ places for a series of mountain climbers.
No ocean in the world is as_____ as the Pacific Ocean.
Although Japan is _____ than Canada, it is _____smaller.
longest
high
popular
big
older
much
longer
Let’s make comparisons.
It’s one of the longest rivers in the world.
It’s a litter longer than the Yellow River.
Choose one star, and make comparisons of what you see.
Let’s make comparisons.
Mountain Huang
Mount Qomolangma
Mountain Huang is one of the most beautiful
mountains in the world.
Qomolangma is much taller than Mountain Huang.
Let’s make comparisons.
The Nile is much longer than the Yangtze River.
The Yangtze River is one of the longest rivers.
the Nile
the Yangtze River
Let’s make comparisons.
China is much bigger than Japan.
Japan is one of the cleanest countries in Asia.
总结回顾
part 3
Self-check.
评价内容 1 2 3 4 5
能够运用形容词、副词最高级提问
能够回答形容词、副词最高级的提问
能够用最高级表述地理事实
课后习题
part 4
Two rivers: _________________ and _________________
_______________________________________________________________________________________________________________________________________________________________________________
The Yangtze River is almost as long as the Amazon River.
The Amazon is longer than the Yangtze river, but the Yangtze River is the longest river in China.
the Yangtze River
the Amazon River
Write two comparisons about two topics. Write true facts.
4b
Two cities: ___________ and ___________
1. _______________________________.
2. _______________________________
_______________________________ .
Two animals: ________ and __________
1. _________________________________.
2. ________________________________
_________________________________
_________________________________ .
Shanghai
New York
Shanghai is almost as large as New York.
Shanghai is larger than New York, but
New York is the largest city in the U.S.
whales
elephants
Whales are almost as heavy as elephants.
Whales are heavier than elephants, but elephants are the heaviest animals on land.
词汇大礼包
part 5
Feel free to ask me anything on today’s Great Wall tour.
feel free 基本意思是“感觉自由”
feel free to ... 表示很随意地去做某事
例句：
Please feel free to ask questions.
Words and phrases.
请随意提问。
在今天的长城游中，大家尽管问我任何问题，不要拘束。
As far as I know, there are no other man-made objects as big as this.
as far as I know＝so far as I know 意为“据我所知”
其他常用口语表达有
as / so far as I can remember / I can tell / I can see等
例句：
As far as I can see, you have done nothing wrong.
Words and phrases.
据我所知，再没有像它这样大的人造物体了。
依我看，你没有做错任何事。
The main reason was to protect their part of the country.
protect … from / against … : “保护 …… 免受 …… ”
protection: 不可数名词，“保护，保卫”
例句：
He wears sunglasses to protect his eyes from the strong sunlight.
Words and phrases.
最主要的原因是要保护他们自己的国家。
他带着太阳镜以保护眼睛免受强烈阳光的伤害。
It’s higher than any other mountain.
It’s higher than the other mountains.
最高级的意义有时可以用比较级表示出来：
总结：形容词比较级+any other + __________
形容词比较级+the other + __________
可数名词单数
可数名词复数
This car runs (the) fastest of all the cars.
= This car runs faster than the other cars.
= This car runs faster than any other car.
Words and phrases
它是最高的山。
例句：
一、构成
规则 原级 比较级 最高级
(1) 一般单音节词在词尾加-er和-est long fast longer faster longest
fastest
(2) 以“e”结尾的单音节词在词尾加-r和-st nice late nicer later nicest
latest
形容词和副词的比较级和最高级
规则变化
规则 原级 比较级 最高级
(3) 重读闭音节，词尾只有一个辅音字母，须双写最后一个辅音字母，再加-er或-est big hot sad glad bigger hotter sadder gladder biggest
hottest
saddest
gladdest
(4) 辅音字母+y结尾，变y为i，再加-er和-est heavy angry funny heavier angrier funnier heaviest
angriest
funniest
规则变化
不规则变化
原级 比较级 最高级
good / well
好的 better
更好的 best
最好的
bad 差的
ill 坏的 worse
更差的；更坏的 worst
最差的；最坏的
many/much
多的 more
更多的 most
最多的
little
少的 less
更少的 least
最少的
不规则变化
原级 比较级 最高级
old
年老的； 古老的 older
较老的；较旧的 oldest
最老的；最旧的；最年长的
elder
年长的 eldest
最年长的
far
远的 farther
（指距离）更远的 farthest
（指距离）最远的
further
（指距离和抽象概念）较深远的 furthest
（指距离和抽象概念）最深远的
原级
句型 例句
(1)“as+形容词原级+as”，在否定句中用“not so. . . as”结构 Lucy is not so tall as Lily.
露西不如莉莉高。
(2) “倍数+as+形容词原级+as” Our school is three times as big as theirs.
我们的学校是他们的三倍大。
二、常见用法
用法 例句
(1)双方比较，表示一方超过另一方时，用“比较级+than”结构 China is larger than Italy.
中国比意大利大。
(2)用于“less+原级+than”（注意此结构不用于单音节词） The book is less interesting than that one.
这本书不如那本书有趣。
(3) “倍数+比较级+than” The box is three times bigger than that one. 这个箱子是那个的三倍大。
比较级
比较级
用法 例句
(4) “比较级+and+比较级”表示“越来越……” Our country is becoming stronger and stronger.
我们的国家正变得越来越强大。
(5) “the+比较级……，the+比较级……”表示“越……，就越……” The more, the better.
多多益善。
(6) “the+比较级+of the two+可数名词复数” The taller of the two boys is my brother.
两个男孩中，较高的那一个是我的哥哥。
最高级
用法 例句
(1) “the+形容词最高级+名词+of+表示范围的短语或从句” Spring is the best season of the year.
春天是一年中最好的季节。
(2) “one of the+最高级+可数名词复数”表示“最……之一” Kobe is one of the best basketball players in NBA.
科比是NBA最好的篮球运动员之一。
Let’s practice.
转换句子.
e.g. He is the tallest student in this class.
= He is taller than any other student in this class.
= He is taller than the other students in this class.
Alice sings best of all the girls.
The Nile is the longest river in the world.
Let’s practice.
This temple is one of ____ buildings in the town. We must take action to protect it.
1.
old
oldest
older
the oldest
Let’s practice.
After two-year physical training, he was_______ and healthier.
2.
weaker
stronger
longer
shorter
Let’s practice.
-- How do you improve your English
-- __________ you speak, __________ your English will be.
3.
The less; the more
The less; the better
The more; the better
The more; the less
Let’s practice.
Tianjin is one of _______cities in China.
4.
big
the biggest
bigger
the bigger
Let’s practice.
It’s reported that Fuxing high-speed train can go as ______ as 350 km an hour.
5.
fastest
fast
faster
the fastest
Homework.
Make a conclusion about how to use comparatives and superlative.
Write five questions using comparatives.
Compare you with your friends.