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(共15张PPT)
Unit 3 Same or Different
Section A (Grammar Focus—3c)
【学习目标】
1.学习并掌握下列词汇：fact, slim, population, average, raintall, pleasant。
2.熟练使用形容词或副词的比较级，谈论两者的异同。
3.使学生学会做比较。培养学生的观察能力。
Grammar Focus
3a
Read the sentences and notice the comparatives in bold. Find more examples in Section A.
There are more activities this year. It is more colourful than last year.
Emma is taller than Ella, but her hair is shorter than Ella’s.
Ella dances better than Emma, but Emma sings louder than her.
Emma always gets up earlier than me, but I work ad hard as her!
Chen Jie is shyer than Peter.
Peter works harder than Chen Jie.
Peter is more outgoing than Chen Jie.
Ella has longer hair than Emma.
Practice Make sentences with comparitives.
形容词和副词比较级的构成规则
1.规则变化
规则 例词
单音节词和少数双音节词一般在词尾后加-er cold-colder
以字母e结尾的词，在词尾加-r late-later
以辅音字母加-y结尾的双音节词，先把“y”改为“i”，再加-er easy-easier
只有一个辅音字母结尾的重读闭音节词，先双写辅音字母再加-er big-bigger
多音节词，在词前加-more beautiful-more beautiful
2.不规则变化
单词 比较级
good/well better
bad/badly worse
many/much more
little less
far farther/further
形容词和副词比较级的基本用法
1.同级比较：用来表达“甲和乙在某种程度或性质上相等”。常见的结构有“A + be/v + as + 原级 + as + B”表示“A和B一样……”；“A + be/v + not + as (so) + 比较级 + as + B”表示“A不如B……”
2.差级比较：用来表达“甲比乙在某种程度或性质上更多或更少”。常见的结构有“A + be/v + 比较级 + than + B”表示“A比B更……”；“Which/Who + be/v + 比较级, A or B”表示“A和B哪一个（谁）更……”。
3.比较级前的修饰语：当强调比较的程度时，比较级前可以使用much, a little, a bit, even等进行强调。例如：My apple is a little bigger than yours. 我的苹果比你的大一点。
3b
Use the words in brackets to write questions and answers.
1. Q: Is Julie slimmer than you (Julie/slim/you)
A: No, she isn’t. She is as slim as me.
2. Q: (you/serious/cousin)
A: No, I’m not. I am than he is.
3. Q: (Tom/smart/Sam)
A: No, I don’t think so. I think Sam is as as Tom.
4. Q: (Jack/ swim/fast/Sally)
A: No, he doesn’t. He swims as as Sally.
Are you more serious than your cousin
more outgoing
Is Tom smarter than Sam
smart
Does Jack swim faster than Sally
fast
3c
Look at the chart. Then complete the sentences to compare Guangzhou and Chicago. Use the words in the box and than.
Guangzhou
Chicago
Facts
Population (2022) 18.734 2.665 million
Area 7,436 589 square km
Average rainfall per year 1, 923 910 mm
Average January temperature 16℃ -6℃
Average July temperature 31℃ 23℃
1. The population of Chicago was smaller than that of Guangzhou in 2022.
2. In area, Guangzhou is chicago.
3. If you don’t like rain, you may like Chicago’s weather Guangzhou’s.
4. Guangzhou has a pleasant temperature in January. It is much Chicago in January.
5. Chiago is Guangzhou in July.
more than
larger than
warmer than
less
cooler than
large small much warm cool
【课堂小结】
1.形容词和副词比较级的构成规则
2.形容词和副词比较级的用法
Ⅰ.按要求写出下列单词的正确形式
1. slim ________(反义词)
2. large ______(比较级)
3. hot _______ (比较级)
4. happy_______ (比较级)
5. bad ________(比较级)
【训练·评价】
larger
hotter
heavy/fat
happier
worse
II.用所给单词的适当形式填空
1. Jack is_________ (serious) than his friend.
2. I am a little______(healthy) than my sister.
3. Who plays basketball _______ (well), you or Bob
4. Mary is much ______ (slim) than Anna.
5.Jack is ___________ (careful) than his cousin.
healthier
more serious
better
slimmer
more careful
III.选择恰当的单词补全对话
A: Are you _______ than Amy
B: No, I’m not. I’m as_______as her. We’re both 1.65m tall.
A: Is Amy _________ than you
B: Yes, she is. But I have hair than her.
A: Who’s __________ , you or she
B: Of course she is. I’m afraid of speaking in front of people.
tall, slim, short, long, outgoing
shorter
slimmer
longer
tall
more outgoing
Outside of the gold and jade, there are many failures. 金玉其外，败絮其中。

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