资源简介

(共24张PPT)
Unit 1
Friendship
Grammar
学习目标
1
2
能掌握形容词的比较级和最高级的构成。
能掌握形容词的比较级和最高级的用法。
A Poem
Good, better, best,
Never let it rest,
And till good is better,
Better is best !
好，更好，最好，
永不停歇，
直到好变为更好，
那么更好就是最好！
Lead in
e.g. Betty’s hair is longer than mine.
Max is more interesting than his classmates.
新课讲授
当我们将两个对象进行比较时，我们要用形容词的比较级，表示“较……”“更……一些”“比……更……”。
当被比较的对象是三个或三个以上时，我们会用形容词的最高级，表示“最……”，最高级前通常要加定冠词 the。
e.g. Betty is the most helpful person in our class.
Max is the tallest boy in our class.
形容词的比较级和最高级
Look at the words and try to work out the rules of the formation of the adjectives' comparatives and superlatives.
great greater greatest
tall taller tallest
small smaller smallest
① 大多数词后加er变成比较级，加est变成最高级。
Look and summarise
nice nicer nicest
fine finer finest
large larger largest
② 以字母e结尾的词只加r或st变成比较级或最高级。
Look at the words and try to work out the rules of the formation of the adjectives' comparatives and superlatives.
slim slimmer slimmest
big bigger biggest
red redder reddest
③ 以一个辅音字母结尾的重读闭音节词，双写最后一个辅音字母，再加er或est。
Look at the words and try to work out the rules of the formation of the adjectives' comparatives and superlatives.
pretty prettier prettiest
easy easier easiest
busy busier busiest
blay (寒冷的) blayer blayest
④ 以辅音字母加y结尾的词先去掉y，再加ier或iest。
Look at the words and try to work out the rules of the formation of the adjectives' comparatives and superlatives.
beautiful more beautiful most beautiful
important more important most important
careful more careful most careful
popular more popular most popular
⑤ 多音节词和部分双音节词应在其前加more变成比较级，加most变成最高级。
Look at the words and try to work out the rules of the formation of the adjectives' comparatives and superlatives.
注意：
构成形容词比较级和最高级的er和est，自成一个音节，读作/ (r)/ 和/ st/。如果原级词末为不发音的字母 r，加er和est 时，r 要发/r/ 音，如clear /kl (r)/、clearer / kl r (r)/、clearest / kl r st/。如果原级词末的发音为/ /，加er 和est 时，/ /音后得加上/ɡ/音，如 long /l /、longer / l ɡ (r)/、longest / l ɡ st/。
不规则变化
more
better
worse
less
原级
比较级
最高级
good / well
ill / bad
many / much
little
best
worst
most
least
注意：
有些形容词有两种比较级和最高级的变化方式。如：
clever—cleverer/more clever—cleverest/most clever
far—farther/further—farthest/furthest
Look at the sentences and try to work out the usage of the adjectives' comparatives and superlatives.
1. This picture is more beautiful than that one.
这幅画比那幅画更漂亮。
2. Which is bigger, the sun or the moon
太阳和月亮，哪个更大？
通常情况下，我们用“比较级 + than”来引出比较的第二部分。
我们常用“which/who ... + 比较级 , ... or ... ”的句型来表示在两者中选择。
3. China is much larger than Japan.
中国比日本大得多。
4. China is becoming stronger and stronger.
中国正变得越来越强大。
我们可在比较级前加上 a little、much、even 等词来表示程度。
我们用“比较级 + and + 比较级”的结构来表示人或事物本身程度的改变。
Look at the sentences and try to work out the usage of the adjectives' comparatives and superlatives.
Look at the sentences and try to work out the usage of the adjectives' comparatives and superlatives.
1. I am the tallest of/among the three.
我是三个人中最高的。
Russia is the largest country in the world.
俄罗斯是世界上最大的国家。
我们用“the + 最高级 + 比较范围”的结构来表示在某一范围内“最……”。介词 of和among后面接表示范围的人或事物，in后面接表示范围的名词或名词性短语。
Look at the sentences and try to work out the usage of the adjectives' comparatives and superlatives.
2. Peter is his oldest son. 彼得是他的长子。
我们用“形容词性物主代词 + 最高级”的结构来表示某人或事物的“最……”。注意：此时形容词的最高级前不需要加定冠词the。
3. In the USA, the third largest city is Los Angeles.
美国的第三大城市是洛杉矶。
我们可以用序数词修饰形容词的最高级。
We use “comparative adjectives + than” to compare ______________
people or things; we use “the + superlative adjectives” to compare
______________ or more people or things.
two
three
Complete the table with the correct comparative and superlative adjectives.
Adjective Comparative Superlative Adjective Comparative Superlative
funny pretty
close bright
beautiful interesting
kind sad
slim wonderful
difficult heavy
smart good
cute bad
Practice
Adjective Comparative Superlative Adjective Comparative Superlative
funny funnier funniest pretty prettier prettiest
close closer closest bright brighter brightest
beautiful more beautiful the most beautiful interesting more interesting the most
interesting
kind kinder kindest sad sadder saddest
slim slimmer slimmest wonderful more wonderful the most
wonderful
difficult more difficult the most difficult heavy heavier heaviest
smart smarter smartest good better best
cute cuter cutest bad worse worst
Check the answers.
Millie Sandy Amy Peter Kitty Simon
Height (cm) 161 170 158 173 160 178
Weight (kg) 50 55 47 60 45 68
Drawing grade A A+ A B B B+
50m swimming (sec.) 80 76 60 68 70 65
Standing long jump (cm) 190 195 180 220 185 230
Daniel has made some notes about his plete his notes below.
1 Peter is ___________________ (short) Simon.
2 Simon is ___________________ (tall) of the six students.
3 Amy is ___________________ (light) Sandy.
4 Simon is ___________________ (heavy) of the six students.
5 Peter’s drawing grade is ___________________ (low) Millie’s.
shorter than
the tallest
lighter than
the heaviest
lower than
Millie Sandy Amy Peter Kitty Simon
Height (cm) 161 170 158 173 160 178
Weight (kg) 50 55 47 60 45 68
Drawing grade A A+ A B B B+
50m swimming (sec.) 80 76 60 68 70 65
Standing long jump (cm) 190 195 180 220 185 230
6 Sandy’s drawing grade is _________________ (high) of the six students.
7 Among the six students, Millie is _________________ (slow) swimmer.
8 Amy is _________________ (fast) swimmer of the six students.
9 Simon’s test score for the standing long jump is _________________ (good) Peter’s. Simon’s test score for the standing long jump is _______________ (good) of the six students.
the highest
the slowest
the fastest
better than
the best
Describe your friends, including their looks and what they are good at, using comparative and superlative adjectives.
一、写出下列形容词的比较级和最高级。
当堂检测
Adjective Comparative Superlative
funny
bad
healthy
careful
large
smart
slim
funnier
funniest
worse
healthier
worst
healthiest
more careful
most careful
larger
largest
smarter
smartest
slimmer
slimmest
二、翻译下列句子。
1. 这台电脑比那台贵。
This computer is ________ __________ _________ that one.
2. 这三个盒子哪一个最重？
Which box is _______ ________ _______ _______ _______
3. 今天比昨天热吗？
Is today _______ ________ yesterday
4. 在这些学生中，Sandy数学最好。
Sandy is ______ _______ _______ _______ ______ ______ _______.
5. 第一道数学题比第二道难得多。
The first maths problem is much ________ ________ ______ the second one.
more expensive than
the heaviest of the three
hotter than
the best at maths among these students
more difficult than

展开更多......

收起↑