文档内容
Unit 7 What’s the highest mountain in the world?
Section A（GF-4c）
1.语言能力：学习形容词和副词的比较级和最高级。掌握much等词修饰形容词
和副词的比较级以及as...as...用于同级比较的用法。
Teaching
Aims 2.文化意识：了解世界地理之最，增长见识。
3.思维品质：能发现同类型语篇的相似之处和不同类型语篇的结构特征。
4.学习能力：使用形容词和副词的比较级和最高级去描述事物。
Teaching 学会形容词和副词的比较级和最高级。
Difficulties
Teaching multimedia courseware or other realia that the T needs for teaching
Aids
Teaching Procedures Tips
Step 1 Lead in
Revision
Introduce some interesting facts about Qomolangma.
1.Qomolangma is 8,848.86 meters high and is still growing.
2.It takes at least 30,000 USD to climb Qomolangma.
3.More than 7,000 climbers reach the summit of Qomolangma.
4.About 300 people have died on the mountain.
5.The summit of Qomolangma is on the border of Nepal and China. Nepal
lies to the south and China to the north.
Can you read these large numbers?
8,848.86 eight thousand eight hundred and forty-eight point eight
six
30,000 thirty thousand
7,000 seven thousand
61,021 sixty-one thousand and twenty-one
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），
1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。
Step 2 Grammar
Grammar Focus
Ask Ss to read the sentences in grammar focus. Then find the
comparatives and superlatives.
Grammar
回顾
形容词和副词通常有三种级别：
1.原级（Positive form）：没有比较含义，“......”；
2.比较级（Comparative form）：两者间比较，“更......”；
3.最高级（Superlative form）：三者及三者以上比较，“最......”。
注意：某些形容词和副词只用原级，如：perfect，excellent，dead
等。
形容词和副词的比较级和最高级
语法概述
形容词和副词的比较级用于两者之间的比较, 表示“较......”或
“更......一些”；形容词和副词的最高级用于三者或三者以上的人或
物之间的比较，表示“最......”形容词最高级前一般要加定冠词the，
副词最高级前的the可以省略。
比较级和最高级的构成
1.规则变化
单音节和部分双音节词 多音节词和
部分双音节
词
一般在词尾 以e结尾 以“辅音字 重读闭音节 在单词前加
直接加 -er 的，加-r或- 母+y”结尾 以一个辅音 more构成
或-est st 的，改y为 字母结尾 比较级，加
i加-er或-est 的，双写这 most构成最
个辅音字母 高级
后加 -er或-
est
long→ nice→ heavy→ big→ beautiful→
longer→ nicer→ heavier→ bigger→ more
2longest nicest heaviest biggest beautiful→
most
beautiful
2. 不规则变化
原级 比较级 最高级
good/well better best
many/much more most
bad/badly worse worst
little less least
far farther/further farthest/furthest
比较级的用法
“比较级+than any other+可数名词单数”=“比较级+than the other+可
数名词复数”表示“比其他任何……都……”, 表示最高级含义，
可与表示最高级的句子进行转换。
My father is the tallest one in my family.
=My father is taller than any other member in my family.
=My father is taller than the other members in my family.
可用于修饰形容词和副词比较级程度的副词（短语）有：
much, a little, even, a lot, a bit, far等。
最高级的用法
1.（the + ）最高级 + in/of 短语
该结构意为“……中最……的”。
I think spring is the best time of a year.
Tom works (the) hardest in Class 3.
2. one of the + 最高级 + 可数名词复数 + in/of 短语
该结构意为“……中最……的……之一”。
Hangzhou is one of the most beautiful cities in the world.
【注意】of与in都有“在......当中”的意思。但它们有严格的区别。
用of的时候,主语同of后面的词是指同一类的人或物。而用in的时
候,主语同in后面的词是指不同类的人或物。
3. the + 序数词 + 最高级 + 可数名词单数 + in / of 短语
该结构意为“……在……中是第几……的……”（从第二开始）。
China is the third largest country in the world.
4. Which / Who … + 最高级, A, B or C?
该结构意为“A，B，C中，哪个 / 谁最……？”。
Which is the biggest, Beijing, Shanghai or Guangzhou?
3【特别提醒】
(1)最高级前有物主代词、名词所有格等修饰时，其前不加the。
The Yangtze River is China’s longest river.
(2)当most表示“非常”时，其前不加the。
It is a most useful book.
Step 3 Presentation & Practice
4a
Ask Ss to 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.
answers：1.longest longer 2.high popular
3.big 4.older much
Make comparisons according to the table.
the Nile River the Amazon the Yangtze the Yellow
River River River
6,671 km 6,480 km 6,300 km 5,464 km
The Nile River is the longest river in the world.
No river in the world is as long as the Nile River.
The Amazon River is one of the longest rivers in the world.
The Amazon River is a little longer than the Yangtze River.
The Nile River is much longer than the Yellow River.
4b
Write two comparisons about two topics. Write true facts.
e.g. 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: Singapore and Kuala Lumpur
1.Kuala Lumpur is as modern as Singapore.
2.Singapore is bigger than Kuala Lumpur and has a larger population than
Kuala Lumper.
4Two animals: Rabbit and Snail
1.A rabbit is bigger than a snail.
2.A snail is a lot smaller than a rabbit, and it runs much more slowly than a
rabbit.
4c
Write five questions using comparisons. Then ask your partner your
questions.
1. What is the highest building in our city?
2. ___________________________________________________
3. ___________________________________________________
4. ___________________________________________________
5. ___________________________________________________
Answers:2.What is the busiest subway station in our city?
3.What is the largest shopping mall in our city?
4.Which is the biggest park in our city?
5.Which is the longest road in our city?
Step 4 Language points learning
No ocean in the world is as big as the Pacific Ocean.
as+形容词/副词原级+as 表示双方在程度、性质、特征等方面一
样。此句意为“世界上没有和太平洋一样大的海洋”，表示“太平
洋是世界上最大的海洋” ，表示最高级含义，可与表示最高级的句
子进行转换。
否定句型：not...as / so+ 形容词 / 副词原级 + as 意为“不
如……”。
Step 5 Summary & Homework
Summary
Ask Ss to do the exercises from PPT P22-25.
Homework
Preview the new words and phrases in Section B(1a-1d).
Do the exercises in students’ book.
In this period, we guide students to pay attention to the comparatives
Teaching
and superlatives. We can show the usage of them on PPT. Ask
Reflection
students to write two comparisons about two topics. Invite some of
5them to show their sentences and see if they master the grammar in this
unit.
When we deal with the grammar, we’d better give students some
written work as homework.
6
