(共30张PPT)
Unit 4 Inventions
Oxford English
Grammar
Module 2 Science and technology
Linda
Nancy
Kate
Linda is taller than Nancy.
Linda is the tallest girl of the three.
Look and say
￥ 50.00
￥ 100.00
￥ 150.00
The purple bag is __________________ one of all the bags.
The purple bag is ____________ the white bag.
more expensive than
the most expensive
Look and say
thin thinner thinnest 以重读闭音节结尾，且词尾只有一个辅音字母的词，双写这个辅音字母，再加er或est。
big bigger biggest busy busier busiest 以辅音字母加y结尾的词，改y为i, 再加er或est。
expensive more expensive most expensive 多音节和部分双音节词在其前面加more或most
原级 比较级 最高级 规则
old older oldest 一般的单音节词在词尾加er或est。
nice nicer nicest 以不发音的e结尾的词只加r或st。
形容词比较级最高级规则变化
Look and say
英语成绩：100分
英语成绩：90分
英语成绩：80分
Dora got a _________ mark than Sam.
Dora
Sam
Li Ming
Dora got _________ mark among the three.
better
the best
Look and say
英语成绩：100分
英语成绩：90分
英语成绩：80分
Li Ming got a _________ mark than Sam.
Dora
Sam
Li Ming
Li Ming got _________ mark among the three.
worse
the worst
Look and say
Alice
Bob
Eric
Alice's home is far from school.
Bob's home is farther/further from school.
Eric's home is the farthest/furthest of all.
原级 比较级 最高级
good
bad/ill
little
much/many
old
far
better
best
worse
worst
比较级最高级不规则变化
less
least
more
most
older/elder
oldest/eldest
farther/further
farthest/furthest
Name Art Science
Alice 84 65
Belinda 72 70
Daisy 83 91
Eric 79 64
Martin 80 78
Paul 81 84
Pauline 62 69
REPORT
Class 2A
A1 Look at the school report below. In pairs, ask and answer questions about it.
Presentation
1. S1: Who got a better mark in Art, Belinda or Daisy (good )
S2: Daisy got a better mark in Art than Belinda.
2. S1: Who got the best mark in Art (good)
S2: Alice got the best mark in Art.
Belinda 72 70
Daisy 83 91
Practice
Name Art Science
Alice 84 65
3. S1: Who ______________in Science, Paul or Martin (good)
S2:_____________________________
S1: Who__________________in Science, Eric or Alice (bad)
S2: ____________________________
5 S1: Who_______________ in Science (bad)
S2:__________________________
got the best mark
Daisy got the best mark in Science.
got the worse mark
Eric got the worse mark in Science.
Practice
got the worst mark
Eric got the worst mark in Science
Presentation
A2. Look at the map below . In pairs ,
ask and answer questions about it.
Follow the example.
From home to school
S1: Whose home is farther / further from school, Alice’s or Daisy’s
S2: Alice home is farther / further from school than Daisy’s
Practice
1 Whose home …, Alice’s or Daisy’s
S1: Whose home is the farther/furthest from school , Daisy’s Eric’s or Martin’s
S2: Martin’s home is the farthest / furthest from school.
2 Whose home .., Daisy’s , Eric or Martin’s
Practice
3. Whose home…, Martin’s or Eric’s
4. Whose home…,Alice’s, Belinda’s or Eric’s
Look and say
This book is as interesting as that one.
这本书和那本书一样有趣。
He sings as well as Han Meimei.
他唱得和韩梅梅一样好。
With light bulbs,people can do as many things in the evenings as they can in the daytime.
有了电灯泡，人们在晚上可以做和白天一样多的事情。
Look and say
A candle does not produce as much light as a light bulb.
蜡烛发不出和电灯泡一样多的光。
Look and say
Language point
Work out the rule:
We use (not) as …as with (the base form/ the comparative) of adjectives to compare things and people.
We use (not) as…as with_________+the plural form of a countable noun or ________+an uncountable noun to compare amounts.
many
much
as……as 用于表示同级之间的比较, 中间可加形容词、副词原级和名词。意思是“和……一样……”。如：
同级之间进行比较
His room is as big as mine.
他的房间和我的一样大。
He runs as fast as I do.
他跑得跟我一样快。
You should keep the room as clean as your brother’s.
Language point
1.表示A与B在某方面程度相同
A+谓语+as+形容词/副词原级+as+B
结构和用法
2.表示A与B在某方面程度不同
A+谓语+not+as/so+形容词/副词原级+as+B
English is as interesting as Chinese.
英语和语文一样有趣。
This book is not as/so good as that book.
这本书没有那本书好。
3.涉及到数量或程度比较时可用
（not）as+many+可数名词复数+as+...
（not）as+much+不可数名词+as+...
He has as many clothes as his brother.
他(没)有和他哥哥一样多的衣服/钱。
He does not have as much money as his brother.
3.表示两者之间的倍数或分数关系时可用
倍数/分数+as+形容词/副词原级+as+...
This room is twice as big as that one.
这个房间是那个房间的两倍大。
4.as...as其他用法
as…as possible / sb can 尽可能……
as soon as 和……一样快；一……就……；
as far as 远达
B1 Look at the pictures below and
complete the following sentences.
Practice
1. The Hotwave and the Micro-King
___________________ (expensive) the peedcook
and the Superoven.
2. The Speedcook____________(wide) the
Superoven.
3. The Hotwave____________(high)the Micro-King.
4. The Micro-King_________________(deep) the
Speedcook.
5. The Hotwave and the Micro-King
_____________(wide) the Speedcook and the
Superoven.
are not as expensive as
is as wide as
is as high as
is not as deep as
is as wide as
B 2 Look at the table and the pictures below.Then complete the sentences with
(not)as many /much …as
Family Cans Plastic Paper Glass
Brown 500 47kg 32kg 74kg
White 525 47kg 30kg 78kg
Black 500 42kg 32kg 74kg
Green 200 21kg 19kg 23kg
Rubbish that four families throw away in a year
1 The Blacks ________________cans as the Browns.
2. The Whites ___________________plastic
_____the Browns.
3. The Browns ___________________paper ______the Blacks.
4. The Greens ___________________glass _____the Whites .
5. The Greens __________________cans ______the Whites .
throw away as many
throw away as much
as
throw away as much
as
don't throw away as much
as
don't throw away as many
as
一、写出下列单词的比较级和最高级。
far ____________ ______________
ill ___________ _____________
well ___________ _____________
good ___________ _____________
little ___________ _____________
many ___________ _____________
much ___________ _____________
farther/further
farthest/furthest
worse
better
worst
best
better
best
less
least
more
most
more
most
Exercise
二、单项填空。
1. Earth’s climate will warm up over the next 50 to 100 years __ it has warmed in the 20,000 years since Ice Age.
A. so long as B. as much as
C. as long as D. as well as
2. Noodles are _________ bread.
as not delicious B. as delicious as
C. deliciouser D. more delicious
3. — English isn’t as ____ as Chinese.
— Maybe. Perhaps it’s just because Chinese is your native language. (2013 甘肃白银)
A. easy B. easily C. easier D. easiest
4. Is Lily’s home ____ away from school than Linda’s (2013 湖南益阳)
A. far B. farther C. farthest登陆21世纪教育 助您教考全无忧
Unit4 Inventions
Grammar同步练习
一、单选
（ ）1. This box is___ that one.
A. heavy than B. so heavy than C. heavier as D. as heavy as
（ ）2. — English isn’t as ____ as Chinese.
— Maybe. Perhaps it’s just because Chinese is your native language. (2013 甘肃白银)
A. easy B. easily C. easier D. easiest
（ ）3. This book is____ that one, but____ than that one.
A. as difficult as; expensive B. as more difficult as; more expensive
C. as difficult as; more expensive D. more difficult as; as expensive
（ ）4. I think the story is not so ___ as that one.
A. interesting B. interested C. more interesting D. most interesting
（ ）5. Which is___ country, China or Japan
A. the large B. the larger C. larger D. Largest
（ ）6. Which do you like ___, tea，milk or coffee
A. well B. better C. best D. most
（ ）7. — How are you today, Mike
— I’m ____ now. I don’t think this medicine is good for me. (2013 山东泰安)
A. badly B. better C. well D. worse
（ ）8. It’s________ to teach a man fishing than to give him fish.
A. more B. better C. good D. best
（ ）9. Is Lily’s home ____ away from school than Linda’s (2013 湖南益阳)
A. far B. farther C. farthest D. the farthest
（ ）10.I do________ in physics of all the subjects.
A. badly B. most badly C. worse D. Worst
二、用括号内所给单词的适当形式填空。
1.Who got a _________（good） mark in PE,Tom or Mary
2.Who got a _________（bad）mark in PE,Sam or Mark Mark got a better mark in PE.
3. Who lives _______ (far) from school, Li Ming or Zhang Hua
4. This glass has as _____ (much) water as that one.
5. Her computer was as _________（good）as mine.
6.I think she is _____ (good) at playing football than any other football player.2
7. The computer was _______(good) than that one.
8. Mike asked as many _________ (question) as Jane did.
9. She got __ ( http: / / www.21cnjy.com )__ (little) money than the others did.
10. She prefers sw ( http: / / www.21cnjy.com )imming to climbing because he thinks climbing is not as ______ (excite) as swimming.
完成句子，一空一词。
1. 这本书和那本书一样有趣。
This book is_____ _____ _____ that one.
2. 他唱得和韩梅梅一样好。
He sings_____ _____ _____ Han Meimei.
3. 乡村的路不如城市的宽。
The roads in the countryside ____ ____ ____ ____ __those in the cities.
4. 有了电灯泡，人们在晚上可以做和白天一样多的事情。
With light bulbs,people can do _____ _____ _____in the evenings _____ _____ _____in the daytime.
5. 他没有和他哥哥一样多的钱。
He _____ _____ _____ _____ _____ _____ _____ his brother.
四、同义句转换。
1. Mark is healthy. Jane is healthy, too.
Mark is __ ______ __ Jane.
2. My English is good. His English is good, too.
My English is __ ____ __ ___.
3. I’m taller than he.
He ___ __ _______ __ I.
4. Mike doesn’t do as well in English as Sam.
Sam____ _____ in English _____ Mike.
Mike’s English isn’t __ ____ __ Sam’s.
5. Dora’s garden is more beautiful than Jane’s.
Jane’s garden is __ __ ____ __ Dora’s.
Unit4 Inventions
Grammar答案
一、1-5 DACAC 6-10 CDBBD
二、1.better 2.worse 3.farther/further 4.much 5.good
6.better 7.better 8.questions 9.less 10.exciting
三、1. as interesting as 2. as well as 3. as many things as they can
4.are not as wide as 5.does not have as much money as
四、1. as healthy as 2.as good as 3.is not as/so tall as
4.does better than as/so good as 5.is not as/so beautiful as
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