八下Unit 7 What's the highest mountain in the world? Section A Grammar-4c (共28张PPT)

(共28张PPT)
Section A (Grammar Focus-4c)
Unit 7 What's the highest mountian in the world
Revision
What’s the highest mountain in the world
Qomolangma.
How high is it
It’s 8,848.86 meters high.
in height
Revision
What’s the deepest salt lake in the world
The Caspian Sea.
How deep is it
It’s 1,025 meters deep.
in depth
Revision
What’s the largest desert in the world
The Sahara.
How large is it
It’s 9,000,000 square kilometers in size.
Revision
What’s the longest river in the world
The Nile.
How long is it
It’s 6,671 kilometers long.
in length
Revision
What’s the longest river in China
The Yangtze River.
How long is it
It’s about 6,300 kilometers long.
Revision
What’s the second longest river in China
The Yellow River.
How long is it
It’s about 5,464 kilometers long.
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。
Grammar
What’s the highest mountain in the world Qomolangma.
How high is Qomolangma It’s 8848.86 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.
形容词和副词的比较级和最高级
大多数形容词和副词都有三个级。
原级: 常用结构as ... as... 像……一样
Zheng Ming is as tall as Tom.
郑明和汤姆一样高。
2) 比较级 (用于两者之间的比较) 常用结构：形容词比较级＋than ...
He is taller than I. 他比我高。
Grammar
3) 最高级(用于三者或三者以上的比较)，
常用结构:
the + 形容词的最高级＋of / in ...
He is the tallest of the three.
他是这三个人中最高的。
He is the funniest in his class.
他是他们班最有趣的。
形容词、副词比较级和最高规则变化和不规则变化。
规则变化
一般情况下，单音节或双音节的形容词
（或副词）比较级＋er ， 最高级＋est 如：
clever－cleverer－cleverest
few－fewer－fewest
small－smaller－smallest等。
以e结尾的词，比较级＋r，最高级＋st 即可。 如：
nice－nicer－nicest cute－cuter－cutest large－larger－largest
以辅音字母＋y结尾的变y为i＋er或est
如: easy－easier－easiest
happy－happier－happiest
再如：early , busy , heavy , dirty , lazy也如此。
多音节和部分双音节的词需要在形容词原级前＋more构成比较级，＋the most构成最高级。如：
beautiful － more beautiful － the most beautiful
又如: delicious, popular, important, interesting, expensive, creative
双音节的词如:
careful － more careful － the most careful
useful － more useful － the most useful
少数单音节词也是这样，如：
pleased－ more pleased － the most pleased
tired－more tired －the most tired
b) 不规则变化：
good —better — best well —better — best
bad－worse － worst
many, much — more — most
far — farther —farthest (距离远)
far — further — furthest (程度深)
old — elder — eldest (长幼)
old — older —oldest (年龄)
即时演练
一、用括号内所给单词的适当形式填空。
1. The weather is getting _______ (cold) and
_______ (cold).
2. The Pacific Ocean is the _______ (deep) ocean
in the world.
3. Which is the _______ (high) mountain in the world
colder
deepest
colder
highest
1. Of the two math problems, I can just work out
_________ one.
A. the less difficult B. more difficult
C. the more difficult D. less difficult
2. In my opinion, Chinese is ________ any other
language in the world because Chinese has the
most number of speakers.
A. as important as B. more important than
C. the most important
二、单项选择。
3. — Could you tell me how to read 6,200,305
in English
— Sure. _________________.
A. Six million, two hundred thousands, three
hundred and five
B. Six millions, two hundred thousands, three
hundreds and five
C. Six millions, two hundred thousand, three hundred
and five
D. Six million, two hundred thousand, three hundred
and five
4. If you want to be thinner and healthier, you should eat ______ food and take _______ exercise.
A. more; fewer B. more; less
C. fewer; more D. less; more
5. The Sahara is ________ than any other desert in
the world.
A. deepest B. deeper
C. biggest D. bigger
三、按要求完成句子，每空一词。
1. Mount Tai is the highest mountain in Shandong
Province. (改为同义句)
Mount Tai is higher than _____ _____ _________
in Shandong Province.
2. 中国的天气比俄罗斯的温暖得多。(翻译句子)
The weather in China is ______ _______ _____ ______
in Russia.
any other mountain
much warmer than that
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
4b
Write two comparisons about two topics. Write true facts.
eg: Two rivers: the Yangtze River and 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.
Two cities: and___________________
Two animal: and___________________
4b
Write two comparisons about two topics. Write true facts.
Two cities:Chengdu and Chongqing
Chengdu is almost as hot as Chongqing. But Chongqing is hotter than Chengdu.
Two animals: a rabbit and a cat
The rabbit is as cute as the cat. But the cat is more friendly than the rabbit.
4c
Write five questions using comparisons. Then ask your partner your questions.
1. _____________________________________________________
2. _____________________________________________________
3. ____________________________________________________
4. ___________________________________________________
5. ____________________________________________________
What is the highest building in our city
What is the busiest subway station in our city
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
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
二、用括号内所给单词的适当形式填空。
1.This question is quite __________. That one is ____________ than this one. (difficult)
2.I think table tennis is as _______ (excite) as soccer.
3.Which of these books would you like _____(much)
4.Take exercise one hour a day, and you will become ________ (strong) than before.
5.Uncle Wang doesn’t drive as _________ as Uncle Liu. I think Uncle Liu drives _____________. (carefully)
difficult
more difficult
exciting
most
stronger
carefully
more carefully