Unit 7 What's the highest mountain in the world Section A Grammar focus 4a—4c 课件(共16张PPT) 人教新目标(Go f

(共16张PPT)
Unit 7 What’s the highest mountain in the world
Section A Grammar focus 4a-4c
年 级：八年级
学 科：初中英语（人教版）
Learning Objectives
By the end of the class, you will be able to
use large numbers to describe the height, the depth, the length and the size of the facts.
use comparatives and superlatives to describe geography and nature.
One of the world’s most dangerous sports is mountain climbing, and one of the most popular places for this is the Himalayas. The Himalayas run along the southwestern part of China. Of all the mountains, Qomolangma rises the highest and is the most famous. It is 8,848.86 meters high and so is very dangerous to climb. Thick clouds cover the top and snow can fall very hard. Even more serious difficulties include freezing weather conditions and heavy storms. It is also very hard to take in air as you get near the top.
Let’s review
Q1: What is one of the world’s most dangerous sports
Let’s review
Q2: What is the highest mountain in the world
Q3: How high is it
Mountain climbing is one of the world’s most dangerous sports.
Qomolangma is the highest mountain in the world.
Qomolangma is higher than any other mountain.
It’s 8848.86 meters high.
It’s eight thousand, eight hundred and forty-eight, point eight six meters high.
Let’s talk
The Sahara
the biggest desert
The Nile
the longest river
6,671 kilometers long
the highest mountain
Qomolangma
8,848.86 meters high
The top of the world
the longest wall
The Ming Great Wall
about 8,850 kilometers long
the deepest salt lake
about 1,025 meters deep
The Caspian Sea
about 9,600,000 square kilometers in size
The deepest salt lake in the world is called the Caspian Sea. It’s about 1,025 meters deep. It’s deeper than any other salt lake. In fact, it’s not a sea, it’s just a salt lake. The Caspian Sea is also the largest salt lake in the world. It’s about 317,000 square kilometers in size. It’s so beautiful and peaceful. The color changes from north to south, because the northern part is just about 5 meters deep, while the southern end is more than 1,000 meters deep.
Let’s read
Let’s conclude
归纳一：如何表达物体的长度、高度、深度
主语+be+基数词(hundred/thousand/million…)+度量词(meters/kilometers)+形容词(long/high/deep…)
The is 2 .
e.g. The basketball player is 2 meters tall.
The river is about 2 meters long/deep.
The mountain is about 2 kilometers high.
Let’s conclude
归纳二：如何表达物体的面积大小
主语+be+基数词(hundred/thousand/million…)+square+度量词(meters/kilometers)+in size
e.g. 我的卧室大约有20平方米。
My bedroom is about 20 square meters in size.
中国的面积大约是960万平方千米。
China is about 9,600,000 square kilometers in size.
Let’s conclude
归纳三：形容词、副词的比较级和最高级
1. 形容词、副词的原级
主+谓+(not)as+原级+as
e.g. 你和我一样高。
You are as tall as me.
Lily没有Lucy瘦。
Lily is not as thin as Lucy.
世界上没有一个海洋像太平洋那么大。
No ocean in the world is as big as the Pacific Ocean.
Let’s conclude
归纳三：形容词、副词的比较级和最高级
2. 形容词、副词的比较级
主+谓+(even, much, a lot, a little…)比较级+than+比较对象
e.g. Tom比他弟弟聪明。
Tom is clever than his little brother.
他跑得比Jack快多了。
He runs much faster than Jack.
虽然日本比加拿大历史更悠久，但它的面积要小得多。
Although Japan is older than Canada, it is much smaller.
Let’s conclude
归纳三：形容词、副词的比较级和最高级
3. 形容词、副词的最高级
主+谓+the+最高级+in/of...
e.g. The Caspian Sea is the deepest of all the salt lakes.
里海是所有盐湖中最深的。
亚马孙河是世界上最长的河流之一。
The Amazon River is one of the longest rivers in the world.
主+谓+one of the+最高级+名词复数+in/of...
Let’s practice
The Nile
6,671km
The Yangtze River
The Yellow River
6,300 km
5,464 km
The Nile is 6,671 kilometers long.
The Yangtze River is 6,300 kilometers long.
The Yellow River is 5,464 kilometers long.
The Yellow River is not as long as the Nile.
The Nile is much longer than the Yellow River.
The Yangtze River is the longest river in China.
The Yangtze River is longer than any other river in China.
The Yangtze River/The Yellow River is one of the longest rivers in China.
...
The Yangtze River and the Yellow River are two mother rivers of the Chinese nation. The Yangtze River is the ________ (long) river in both China and Asia. It’s about 6,300 kilometers _______ (long), much_______(long) than the Yellow River. It begins in western China and ends into the East China Sea. The Yellow River is one of the ______ (long) rivers in China and it flows through 9 provinces. It’s about 5,464 kilometers ______(long). Because there is a lot of mud and sand, that’s how the Yellow River gets its name. Both rivers have played important roles in Chinese history, culture and economy.
Let’s read
longest
longest
long
longer
long
Let’s write
The Qiantang River 588.73 km
The Oujiang River 388 km
The Feiyu River 193 km
Checklist Points(5)
Describe all the rivers
Use large numbers
Use comparatives and superlatives correctly
Homework
Have to do
Write a note to introduce the Qiantang River, the Oujiang River and the Feiyun River accouding to the checklist.
Choose to do
Search for the information about the other tops of your hometown.
Thank you