Module 2 Unit 3Language in use Grammar课件(共16张PPT，含内嵌视频) 外研版八年级上册

(共16张PPT)
Module 2 Unit 3
language in use
Grammar
Let's watch a video first.
How to make comparisons correctly
1
2
能掌握形容词比较级的规则变化及其用法。
能熟练运用形容词比较级比较两个地方。
目标一:掌握形容词比较级的规则变化及其用法
Activity 1
Read the following sentences first and put them
into Chinese, then talk about them in groups.
1. It's getting bigger and busier.
2. Its streets are much wider and cleaner too.
3. It's a newer city than Hong Kong.
4. It's taller than many other buildings in Shenzhen.
Group
Discussion
小组合作观察每个句子，讨论、总结并分组展示。
Task 1: 找出每个句子中的形容词比较级, 写出其原级,
观察、总结形容词比较级的变化规则；
Task 2: 探究每个句子中比较级的句型结构, 并查阅相关
资料拓展总结其常用句型和具体用法。
1. It's getting bigger and busier.
2. Its streets are much wider and cleaner too.
3. It's a newer city than Hong Kong.
4. It's taller than many other buildings in Shenzhen.
Activity 2
每个小组派代表总结发言。
1 组
2 组
3 组
4 组
Activity 3
Summary
形容词的比较级(1)
形容词有三个等级：原级、比较级、最高级。
【注】形容词的原级就是原形。
【比较级定义】表示两者或两类人或事物之间的比较。
【比较级的句子结构】即原来的句子结构不变, 只是将形容词变成比较级的形式, 然后在后面用than引出所比较的对象。
构成方法 原级 比较级
单音节和少数双音节 一般在词尾 加-er cold colder
以字母e 结尾的加 -r nice nicer
重读闭音节结尾,且末尾只有一个辅音字母，要先双写这个辅音字母，再加-er big bigger
以辅音字母+y 结尾的, 把 y 改 i , 再加 -er busy busier
形容词比较级的构成
【拓展】形容词比较级的不规则变化
原级 比较级
good / well
many / much
bad / ill
little
old
far
better
more
worse
less
older / elder
farther / further
形容词比较级的常用句型
① A+动词+形容词比较级+than +B ，意为“A比B更……”
e.g. I'm taller than my twin sister.
②表示两者之间的选择, 可使用 Which is + 比较级 …or…
e.g. Which is cheaper, the red one or the brown one
③ ……比较级+and+比较级……，“越来越…”
e.g. In spring, the weather is getting warmer and warmer.
④ as+形容词原形+as…, “ 和……一样……”
否定形式: not as…as…或 not so… as… 意为
“和…… 不一样”“不及／不如……”。
e.g. Some day, my home town will be as busy as Shenzhen.
e.g. This book isn’t as / so interesting as that one.
1) than后面接代词时, 一般要用主格形式,但在口语中
也可使用宾格形式。 e.g. My brother is taller than I/me.
2) 形容词比较级后面往往用连词than连接另一个比较的
人或事物, 但在上下文明确的情况下, 形容词比较级可单
独使用。e.g. My sister is tall, but my aunt is taller.
3) 进行比较的人和物必须是同一类。
e.g. My books are more than yours.
I have more books than you.
注意
目标二:熟练运用形容词比较级比较两个地方
Activity 1
1
Complete the sentences with the correct form of
the words in the box.
big cold large old tall
1. Shenzhen was very small about thirty years ago but it is much _________ now.
2. This building is tall but that building is much _____.
3. Beijing is old but Xi’an is much ______.
4. The US has a large population but India’s population is _______.
5. Beijing is cold in winter but Harbin is ________.
bigger
taller
older
larger
colder
Activity 2
Work in pairs. Talk about the pictures. Use the words
in the box to help you.
2
Pair Work
big busy high low old small tall wide
①
②
Now make comparisons. Write sentences.
The buildings in
picture 1 are older
than the buildings
in Picture2.
In Picture 2, the roads are wider / busier than those in Picture 1.
The buildings in the village in Picture 1 are older / smaller / lower
than the buildings in the city in Picture 2.
The buildings in the city in Picture 2 are newer / higher / bigger / taller
than the buildings in the village in Picture 1.
Activity 3
3
Write sentences. Use the information in the table.
Shenzhen Beijing new
Shanghai Hangzhou busy
Xi’an Beijing old
China Australia big
Tian’anmen Square Other squares in China wide
The population of Tianjin The population of Shanghai small
For example: Shenzhen is newer than Beijing.
综合上述目标，说说我们今天的收获。
学习目标
1
2
能掌握形容词比较级的规则变化及其用法。
能熟练运用形容词比较级比较两个地方。