Unit1 Friends Grammar课件(共25张PPT)牛津译林版八年级上册

(共25张PPT)
牛津译林版八年级英语上册
Unit1 Friends Grammar
Lead in
The girl is shorter than the boy.
The boy is taller than the girl.
worse adj. (bad的比较级)更坏，更差
worst adj. (bad的最高级)最坏，最差
height n. 高度；身高
weight n. 重量；体重
sec. abbr. (= second) 秒
competition n. 竞赛，比赛；竞争
test n. 测试，考查
swimmer n. 游泳者
Read aloud these new words.
e.g. The girl’s height is one metre.
height n. 高度，身高
e.g. He wants to lose weight by exercising.
weight n. 重量；体重
e.g. They are having a competition.
competition n. 竞赛，比赛
e.g. He is doing a maths test.
test n. 测试，考查
Please read the table on Page11.And rule out how to form comparatives and superlatives with adjectives.
Learning for use
形容词的比较级和最高级构成
规则变化
不规则变化
直击中考
比较级和最高级的转换
1. Shanghai is the largest city in China.
Shanghai is larger than any other city in China.
Shanghai is larger than the other cities in China.
比较： Shanghai is larger than any city in Jiangsu.
Shanghai is larger than any other city in Jiangsu.
2.We use comparatives to compare two people or things when we see … in the sentence
3.We use superlatives to compare three or more people or things when we see …
We add ‘the’ before the superlatives.
than, much, even, still, any, far,a little, a lot, of the two , Which/Who is …, A or B The+比较级…，the+比较级… ，比较级+and+比较级， more and more+原级， etc.
of all/the three…, in …, among…, one of…,
Which/Who is …, A, B or C
the second/third/fourth…+最高级,表示“第几……” etc.
Pay attention:
1.原级前常加：very, too, much too,so, quite,etc.
大多数形容词有三种比较等级：_____________________。形容词原形为原级；比较级和最高级可以分为规则形式和不规则形式。大多数形容词的比较级和最高级都是规则的，只有少数几个是不规则的。
(Comparative and superlative adjectives)
形容词比较级和最高级
原级、比较级和最高级
The girl is the tallest of the three.
一、单音节和部分双音节形容词比较级和最
高级的构成
1. 一般在形容词词尾加-er或-est。如：
kind — ________— ________
clever — _______ — ________
2. 以字母e结尾的形容词，在词尾加-r或-st。
如：
nice — _______ — ________
safe — ________ — ________
kinder
kindest
cleverer
cleverest
nicer
nicest
safer
safest
读 / / 或 / st/
large，late，fine，wide
二、多音节及部分双音节形容词比较级和最
高级的构成
1. 多音节和部分双音节形容词的比较级是在
该词前加______，最高级是在词前加_____。
如：difficult — more difficult — most difficult
careful — more careful — most careful
more
most
2. 有些双音节形容词的比较级和最高级在该词后
加________或在词前加___________皆可。如：
clever — cleverer / more clever — cleverest / most clever
polite — politer / more polite — politest / most polite
-er和-est
more和most
3. 以重读闭音节结尾且词尾只有一个辅音字母
的形容词，双写该辅音字母再加 ________。
如：
thin — thinner — thinnest
hot — hotter — hottest
4. 以“辅音字母+ y”结尾的形容词，变__为 再
加_________。如：
happy — happier — happiest
pretty — prettier — prettiest
-er或-est
y
i
-er或-est
slim，big，wet，red，sad，fat
辅+元+辅（w，r，y除外）
5. 有些形容词的比较级和最高级是不规则的，
需要逐个记忆。如：
good — _______ — ______
bad / ill — _______ — _______
many / much — ______ — ______
little — _____ — ______
old — ____________ — ____________
far — _______________ — _______________
worse
worst
better
best
more
most
less
least
older / elder
oldest / eldest
farther / further
farthest / furthest
This book is the most interesting of all.
My book is more interesting than his.
His book is less interesting than mine.
A. Daniel is writing about his classmates. Help him complete the following table with the correct adjectives.
P12 A class profile
形容词通常有三种形式: 原级，比较级和最高级，用来表示人或事物在某方面的不同程度。如：
(Comparative and superlative adjectives)
比较级和最高级
不规则变化
good/well
bad/badly/ill
many/much
little
far
old
比较级和最高级
better--best
worse--worst
more--most
less--least
farther/further--farthest/furthest
older/elder—oldest/eldest
“好、坏”有“多、少”，一个就很好
“老、远”不同意，两个才最好
构成方法 原级 比较级 最高级
long few cheap longer fewer cheaper longest
fewest
cheapest
nice safe late nicer safer later nicest
safest
latest
big hot thin bigger hotter thinner biggest
hottest
thinnest
pretty unhappy heavy prettier unhappier heavier prettiest
unhappiest
heaviest
大部分单音节词在词尾加-er或-est
以字母e结尾的词，加-r或-st
重读闭音节词只有一个辅音字母时，应先双写辅音字母，再加-er或-est
以辅音字母+y结尾的双音节词，先改“y”为“i”,再加-er或-est
Form Comparatives and Superlatives
Practice 1
clean helpful
easy beautiful
healthy important
tidy tired
close far
hot
sad clever
cleaner cleanest
easier easiest
healthier healthiest
tidier tidiest
closer closest
hotter hottest
sadder saddest
more~ most ~
more~ most ~
more~ most ~
more~ most ~
farther farthest
further furthest
~er ~ est
格林先生是这四个人当中最高最胖的。
Mr Green is ______________ and _______________________.
2. 小香蕉往往比大香蕉好。
Small bananas are often _______________________.
3. 我的铅笔比你的短得多。
My pencil is ______________________.
4. 在中国，哪一条河流最长？
Which river is __________________ in China
5. 他的观点比我的新。
His idea is ____________________.
the tallest
fattest of the four
better than big ones
much shorter than yours
the longest
newer than mine
Translation
实战演练
1. Which is _____ , a bicycle or a computer
A. expensive B. more expensive C. the most expensive
2. The Yellow River is one of ______rivers in China.
A long B longer C the longest
3.She is the______ of the twins.
A. tall B. taller C. tallest
4. -Which is ____ season in Beijing
　　-I think it's autumn.
A. good B. better C. best D. the best
5．I study English as_______as my brother.
A. hard B. harder C. hardest
6.Amy is ___________(fast) swimmer of the six students.
7. Millie’s drawing is ___________________ (beautiful) Peter’s.
8.Sandy’s drawing is ___________________ (beautiful) in the drawing competition.
9. Millie’s English is __________(good) Simon’s. Millie’s English is ______ (good) in her class.
the fastest
more beautiful than
the most beautiful
the best
better than