Unit 7 What's the highest mountain in the world?Section A（Grammar Focus-4c）课件（共有PPT20张）

(共20张PPT)
Unit 7
What’s the highest
mountain in the world
Review
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8,844.43米，所以攀登起来很危险。
Qomolangma is 8,844.43 meters high and so is very dangerous to climb.
Presentation
8,844.43
30,000
7,000
eight thousand eight hundred and forty-four point four three
thirty thousand
Can you read these large numbers
seven thousand
61,021
sixty-one thousand and twenty-one
Presentation
大数字的表达和读法
大于1000的基数词的表达法：
①从数字的右端向左数，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），
第三个逗点前的数为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。
Presentation
2674
2, 674
thousand
and
two thousand six hundred and seventy-four
hundred
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）；
3. 读的时候通常在hundred后加and。
Presentation
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25英尺长。
The classroom is 25 feet 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 8,844.43 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.
一.语法梳理 形容词比较级/最高级变换规则
(1)规则变化
①一般在词尾加_______
②以字母e结尾的词加______
③以一个辅音字母结尾的重读闭音节词，先______该辅音字母，再加______.
④以“辅音字母+y”结尾的双音节词，先改_____为_____, 再加________.
⑤多音节词和部分双音节词，加________
(2)不规则变化
原级 比较级 最高级
good/well
bad/badly
many/much
little
far farther/further farthest/furthest
(3)句型
越来越暖和__________________
越来越受欢迎_______________
越来越... ____________________
和…一样_____________________
不及，不如_____________________
_____________________
er/est
r/st
双写
er/est
y
i
er/est
most
注意：比较级是两者之间比较，标志词是_________，
(....的多)________ _______; (一点儿，稍微)_______修饰比较级
最高级是三者及三者以上比较，最高级前要加定冠词_________
最...之一__________________

best
worst
most
least
warmer and warmer
more and more popular
much
better
worse
more
less
The+比较级， the+比较级
as 形容词/副词原级 as
not as/so …..as
less形容词/副词原级 than
than
a lot
a little
the
one of the +形容词最高级+可复 谓语单数
(三者或三者以上)
the+最高级+
of 是对应的范围
in 是指一个广泛的范围
上海是中国最大的城市.
Shanghai is the largest in China.
那个短发的女孩是我们班最高的.
The girl with red hair is the tallest in our class.
形容词最高级的常用句型
He is the tallest of these boys.(boys和he是对应的,he就是boy)
他是这些男孩中最高的。
最重要的语言之一是英语。
English is one of the most important languages.
云南是中国最美的城市之一。
Yun Nan is one of the most beatiful cities in China.
One of+the+最高级+名词复数
“最……的……之一”
Fill in the blanks with the correct forms of the
words in the box.
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.
longest
longer
high
popular
big
older
much
big much popular long old high
4a
Write two comparisons about two topics. Write true facts.
4b
Two cities:
Beijing and Shanghai
Beijing is as modern as Shanghai.
Beijing is bigger than Shanghai, but Shanghai has a larger population than Beijing.
Beijing
Shanghai
Two animals:
Monkey and Dog
A dog is bigger than a monkey.
A monkey is smaller than a dog, but it climbs a tree faster than a dog.
Write five questions using comparisons. Then ask
your partner your questions.
What is the highest building in our city
_____________________________________
_____________________________________
_____________________________________
_____________________________________
What is the longest river in our city
What is the largest park in our city
What is the highest mountain in our city
What is the most popular cinema in our city
4c
— Who would you like to be your assistant, Jack or David
— If I had to choose, David would be the ______ (good) choice.
2. — How was your math exam, Nancy
— I think I did it well, although it was _______________ (difficult) than the last one.
3. — Did you have a wonderful time at the party
— Yes, it’s the ______________ (exciting) one I’ve ever been to.
4. I’d like to know if Linda is the second ______ (tall) girl in her class.
5. Now computers are very popular and they are much ________ (cheap) than before.
6. — Look at that model ship.
— Oh, it looks like a real one. It’s just a little _______ (small) than the real one.
I. 用括号内所给单词的适当形式填空。
better
more difficult
most exciting
tallest
cheaper
smaller
Homework:
Review the new words and expressions.
2. Try to write as many sentences as you can using comparisons. (10 sentences at least)