人教新目标(Go for it)版八下Unit 7 What's the highest mountain in the world? Grammar focus-4c课件（41张PPT）

(共41张PPT)
Unit 7
What's the highest mountain
in the world
Grammar focus-4c
重点单词
square 平方，正方形
meter 米，公尺
deep 深的
desert 沙漠
population 人口
Asia 亚洲
feel free 随便做某事
tour 旅行 旅游
tourist 旅行者、观光者
wall
amazing
ancient
protect
wide
as far as I know
墙
令人大为惊奇的
古代的、古老的
保护、防护
宽的、宽阔的
就我所知
重点单词：
achievement n. 成就，成绩
southwestern adj.
西南的，西南方向的
thick adj. 厚的，浓的
include v. 包括
freezing adj.
极冷的，冰冻的
condition n. 条件，状况
take in 吸入，吞入（体内）
succeed v.实现目标，成功
challenge v. n.挑战，考验
in the face of
面对（问题、困难等）
achieve v. 达到，完成，成功
force n.力量
nature n. 自然界，大自然
even though=even if
即使， 虽然
ocean n. 海洋；大海
the Pacific Ocean 太平洋
(可以)随便(做某事)
就我所知
吸入;吞入(体内)
面对(问题、困难等)
即使，虽然
挑战自我
保护...免受.
成功地做某事
实现梦想
...的力量
feel free to do
as far as I know
take in
in the face of
even though =even if
challenge oneself
protect...from...
succeed in doing
achieve one’s dream
the force of
背诵小能手
Learning aims:
1.熟练掌握Grammar Focus重点句型
并背诵。
2.熟练掌握并运用形容词最高级的用 法。
3.通过习题进一步巩固知识点。
Lead in
1.This story is as ___________(interest)
as that one.
2.Shanghai is bigger than _______
in China.
A. any city
B. any other cities
C. any other city
D. any cities
interesting
C
as + adj./adv.原级 + as
比较级 + than +any other+可数名词单数
3.It’s much _______ to have a small lovely room than a big cold one .
A. good B. well C. better D. best
4.English is _______ of all the subjects in my class because our English teacher is friendly to us all .
A. more popular
B. popular
C. most popular
D. the most popular
C
D
much, a lot, a little, a bit, even, far
等可修饰比较级
（adj./adv.）最高级+of/among /in…
自主学习一
内容：Grammar Focus
要求：大声朗读Grammar Focus 中
的句子3 遍，边读边译。
时间： 3min
What’s __________ (high) mountain in the world
Qomolangma.
How _____(high) is Qomolangma
It’s 8,844.43 meters high. It’s ______ (high) than any other mountain.
the highest
high
higher
3. --Which is __________(deep) salt
lake in the world
--The Caspian Sea is __________
(deep) of all the salt lakes.
4.--Did you know that China is one of
_______(old)__________(country) in
the world
--Yes, I did. It’s much ____(old) than
the US.
the deepest
the deepest
the oldest
countries
older
连词成句：
1. world,highest,the,what’s,in,the,mountain( )
2. any, higher,it’s,than,other,mountain (.)
3. deepest,all, the ,lakes,Caspian, the ,salt,sea,
the,is,of(.)
连词成句：
1. world,highest,the,what’s,in,the,mountain( )
2. any, higher,it’s,than,other,mountain (.)
3. deepest,all, the ,lakes,Caspian, the ,salt,sea,
the,is,of(.)
What’s the highest mountain in the world
It’s higher than any other mountain.
The Caspian Sea is the deepest of all the
salt lakes.
教师点拨
构成 原级 比较级 最高级
单音节和少数双音节单词 一般词尾加-er, -est tall, long, old, small taller, longer, older, smaller tallest, longest, oldest, smallest
以字母e结尾的形容词或副词,直接加-r,-st nice, fine, large nicer, finer, larger nicest, finest, largest
以重读闭音节结尾的形容词或副词,如末尾只有一个辅音字母,双写该字母,再加-er,-est big, hot, red, thin bigger, hotter, redder, thinner biggest, hottest, reddest, thinnest
以“辅音字母+y”结尾的形容词或副词，把y变为i，再加-er,-est busy, early, easy busier, earlier, easier busiest, earliest, easiest
部分双音节与多音节的词加more, most
构成比较级和最高级:
beautiful-more beautiful-most beautiful
不规则变化的形容词和副词:
原级 比较级 最高级
good/well better best
bad/badly/ill worse worst
many/much more most
little less least
far farther farthest
further furthest
比较级考点
① 修饰比较级的词
much, a lot, a little, a bit, even, far
等可修饰比较级。
Tom is a little taller than Jim.
This book is much more interesting
than that one.
② 比较级 + and + 比较级 越来越......
It’s getting colder and colder.
She is getting more and more beautiful
③ the + 比较级 + 句子，the + 比较级 + 句子 越…..就越……
The more you exercise, the better you are.
三者或三者以上相比，表示最高程度时，用“the + 最高级”的结构表示。这种句式一般常有表示比较范围的介词短语(in. of all . among)
Zhang Hua is the tallest of the three.
He works (the) hardest in his class.
最高级的用法
②one of +形容词最高级+可数名词复数
译为 “......之一”
Beijing is one of the biggest cities
in the world.
③“the + 序数词 + 最高级+名词单数”
I think he is the second tallest boy in
his class.
4. 比较级和最高级的转换
Tom is the tallest student in
the class.
= Tom is taller than any other
student in the class.
同级比较
① as + adj./adv.原级 + as
She is as thin as Lily.
He writes as carefully as Linda.
② not + as/so + adj./adv.原级 + as
Tony didn’t run so fast as Carter.
小试牛刀：
Our life is becoming_______and _______.(good)
2.______you speak,____your English will be.
A.The less; the more B.The more ; the better
C.The less; the better D.The more; the less
3-Mum,could you buy me a dress like this,please
-Yes.We can buy____one than this, but _____it.
A.a better;better than B.a worse; as good as
C.a cheaper; as good as
D. a more important; not as good as
better
better
B
C
4.-Lily has two sisters,doesn’t she？
-Yes,She’s taller and older than her two
sisters,but she’s not ____one of the three.
A.the tallest B. youngest
C.shortest D.the cleverest
5.-He is the only one who failed the math exam.
-Really You mean he studies_____.
A.the most careful B.the least careful
C.the most carefully D.the least carefully
D
D
自主学习二
内容：4a
要求：结合句意，用所给词汇的适
当形式填空，自主完成4a.
时间：3 min
Fill in the blanks with the correct forms of the words in the box.
big much popular long old high
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.
longest
longer
high
popular
4a
3. No ocean in the world is as _____ as the Pacific Ocean.
4. Although Japan is _______ than Canada, it is _______ smaller.
big
older
much
太平洋
n. 大海；海洋
Two cities: ___________ and ___________
1. _______________________________.
2. _______________________________ .
Two animals: _________and ___________
1. _______________________________.
2. _______________________________
____________________.
Beijing
Qingdao
Beijing is bigger than Qinghdao
Beijing has a larger population than Qingdao
bear
monkey
A bear is bigger than a monkey
A monkey is smaller than a bear,but it
runs faster than a bear
小结
比较级考点
① 修饰比较级的词
much, a lot, a little, a bit, even, far
等可修饰比较级。
② 比较级 + and + 比较级 越来越......
③ the + 比较级 + 句子，the + 比较级 + 句子 越…..就越……
最高级用法： ①三者或三者以上相比，表示最高程度时，用“the + 最高级”的结构表示。这种句式一般常有表示比较范围的介词短语(in. of all . among) ②one of +形容词最高级+可数名词复数译为 “......之一” ③“the + 序数词 + 最高级+名词单数”
同级比较
① as + adj./adv.原级 + as
② not + as/so + adj./adv.原级 + as
1. Our family has bought a car so we can travel _____ than before.
most easily B. less easily
C. easily D. more easily
2. My father told me a story last night. It is ____ one I’ve ever heard.
the funniest B. funniest
C. funnier D. the funnier
D
A
习题巩固
3.At the beginning of the 20th century, the world’s population ____(be) about 1700 million.
4.I study English as _____ as my brother .
A. hard B. harder C. hardest
5. Which is ____, a bicycle or a computer
A. expensive B. more expensive
C. the most expensive
was
A
B
6. The _____ friends you have, the
____ you will be.（2010陕西）
A. more, happy B. many, happy
C. more, happier D. many, happier
7. When he heard a cry for help, he ran out as _______ as he could.（2011陕西）
A. hardly B. quickly
C. finally D. slowly
C
B
小测
1. The Yellow River is one of ______
rivers in China.
A. long B. longer C. the longest
2. China is _____ country in the world.
A. the third largest B. the largest third
C. the third large D. a third largest
3. — Which is ____ season in Beijing
— I think it’s autumn.
A. good B. better C. best D. the best
4. — Which is ____, the sun, the moon
or the earth
— The moon is.
small B. smaller
C.the smaller D. the smallest
5. I study English as ____ as my brother.
A. hard B. harder C. hardest
6. Which is ____, a bicycle or a computer
A. expensive B. more expensive
C. the most expensive
小测
1. The Yellow River is one of ______
rivers in China.
A. long B. longer C. the longest
2. China is _____ country in the world.
A. the third largest B. the largest third
C. the third large D. a third largest
C
one of +the+adj 最高级+可数n. 复+ in/of.....
主语+谓语v + the + 序数词+ adj 最高级+n + in/of....
A
3. — Which is ____ season in Beijing
— I think it’s autumn.
A. good B. better C. best D. the best
4. — Which is ____, the sun, the moon
or the earth
— The moon is.
small B. smaller
C. the smaller D. the smallest
D
季节有四个，所以是三者以上做比较，应该用最高级, 形容词做表语时the可以省略，在这做的定语
三个星球，所以是三者做比较，应该用最高级，
疑问词+谓语v +(the )+最高级，A,B,or C
D
5. I study English as ____ as my brother.
A. hard B. harder C. hardest
6. Which is ____, a bicycle or a computer
A. expensive B. more expensive
C. the most expensive
A
as+adj/adv原级+as 和.... 一样
B
两者作比较应该用比较级