(共21张PPT)
八年级上册 人教版
Unit 3 I’m more outgoing than my sister.
语法:形容词、副词的比较级
Sam has longer hair than Tom.
Tom has _________ than Sam.
shorter hair
Paul is thinner than Peter.
Peter is fatter than Paul.
-Is Tom smarter than Sam
-No, he isn’t. Sam is smarter than Tom.
-Is Tara more outgoing than Tina
-No, she isn’t. Tina is more outgoing than Tara.
Grammar Focus
-Are you as friendly as your sister
-No, I’m not. I’m friendier.
-Does Tara work as hard as Tina
-Yes, she doesn’t.
-Who’s more hard-working at school
-Tina thinks she works harder than me.
Grammar Focus
比较级 原级 规则
smarter
more outgoing
friendlier
more hard-working
thinner
fatter
smart
outgoing
friendly
hard-working
原级-er
more+原级
改y为i,再加er
more+原级
thin
fat
双写n, 再加er
双写t, 再加er
形容词和副词的比较级
构成方法 原级 比较级
一般在词尾加-er high tall short slow higher
taller
shorter
slower
以字母e结尾的词,在词尾加-r fine late finer
later
1)规则变化
构成方法 原级 比较级
重读闭音节词词尾只有一个辅音字母时,先双写该辅音字母,再加-er big thin fat bigger
thinner
fatter
以“辅音字母+y”结尾的双音节词,先把“y”改为“i”,再加-er easy funny early easier
funnier
earlier
多音节词和部分双音节词:在词前加more beautiful interesting comfortable more beautiful
more interesting
more comfortable
2)不规则变化
原级 比较级
good/well better
bad/badly worse
many/much more
little less
far farther
further
比较级的用法
两者之间的比较要用比较级,表示其中一个比另一个“更......”,后面用连词than连接另一个所要比较的人或物。
e.g. Sam is smarter than Tom.
比较级的修饰语
比较级可以不带修饰语,若表示程度或者差别大小时,可用much、a lot、a bit、a little、even等修饰。
e.g. Planes are much faster than trains.
比较级的常用句型或结构
①“A+be+形容词比较级+than+B”或“A+实义动词+副词比较级+than+B”: 表示“A比B......”
e.g. It is bigger than any other city in China.
它比中国任何其他城市都大。
I got up earlier than my mother this morning.
今天早晨我起得比我的妈妈早。
②“A+be+the+形容词比较级+of the two (+...)”
表示“A是两个(......)中较......的。”
e.g. Tom is the taller of the two (men).
汤姆是两个人中较高的那一个。
③“比较级+and+比较级”或者“more and more+原级(多音节词或者部分双音节词)”
表示“越来越......”
e.g. Our life is getting better and better.
我们的生活正变得越来越好。
The flowers are more and more beautiful.
花儿越来越漂亮了。
④“the+比较级,the+比较级”表示“越......就越......”
e.g. The more careful you are, the fewer mistakes you will make.
你越认真你犯的错误就越少。
Exercises
单项选择题。
1. The box was than I had expected(预想). I was out of breath when I got home.
A. more heavier B. much heavier
C. a little heavier D. very heavier
B
Exercises
单项选择题。
2. He is a little than you, but he is as as you.
A. thin;stronger B. thinner;stronger
C. thinner;strong D. thin;strong
C
Exercises
单项选择题。
3. A journey by train is than by coach(长途汽车).
A. more relaxing B. relaxing
C. most relaxing D.the most relaxing
A
Exercises
单项选择题。
4. - I think it’s necessary to learn how to work in groups.
- I quite agree. Sometimes it’s even than grade(成绩).
A. less important B. more important
C. the least important D.the most important
B
Exercises
单项选择题。
5. The kids learn to be independent, the is for their future.
A. early;good B. early;better
C. earlier;better D. earlier;good
C
Thanks for your listening!