内容正文:
《英语 拓展模块》(高教版2023修订版)
Unit 3 Doing Our Part for the Environment 语法
比较级和最高级
03 比较级的用法
04 最高级的用法
05 巩固练习
目录
01 比较级和最高级的变化规则
02 原级的用法
(动画)邀请你掌握:
(动画)学会判断祈使句的方法
(动画)用祈使句发出指令或表达禁止
(动画)区别“祈使句+and+陈述句”和“祈使句+or+陈述句”
2
Watch a video
什么是比较级和最高级
最高级则用于三者或三者以上的比较,表示 “最……”。
比较级是形容词或副词的一种形式,用于两者之间的比较,表示 “更……”
例句:This jacket is larger than that one (is).
例句:He is the oldest of the three.
形容词副词的规则变化
tall—taller—tallest
small — smaller —smallest
slow —slower—slowest
clever —cleverer —cleverest
1. 一般情况下,单音节/部分双音节词, 比较级+er, 最高级+est 。
形容词副词的规则变化
nice— nicer —nicest
cute— cuter— cutest
large—larger—largest
late —later —latest
2. 以哑e结尾的词,比较级+r,最高级+st 即可。
形容词副词的规则变化
big—bigger—biggest
fat—fatter — fattest
hot—hotter—hottest
thin—thinner—thinnest
3. 辅元辅加重读闭音节,双写辅音字母,再比较级+ er,最高级+ est。
形容词副词的规则变化
easy — easier — easiest
happy — happier — happiest
busy — busier — busiest
lazy —lazier —laziest
4. 以辅音字母+y结尾的双音节词,把y变为i , 再比较级+er ,最高级+est。
形容词副词的规则变化
important —more important —most important
happily— more happily — most happily
beautiful — more beautiful — most beautiful
5. 其他的双音节词和多音节词 ,比较级在词前加 more ,最高级加 most。
形容词副词的规则变化
记忆口诀
比较级最高级,词尾加er/est。
结尾如果有哑e,直接加r/ st。
辅元辅闭音节,最后字母要双写,再来er/est。
辅音字母加上y,记得要去y为i,
再次尾巴加起来。
单词若是多音节,more或most 加前去
形容词副词的不规则变化
far—farther / further—farthest / furthest
old—older / elder—oldest / eldest
little—less—least
bad / ill—worse—worst
many / much—more—most
good / well—better—best
有少数形容词副词的比较级和最高级是不规则的哦!
let’s play
快速说出单词的比较级和最高级。
nice
heavy
fast
thin
much
bad
形容词副词的原级
例句:The water in this stream is just as clear as that in the lake.
例句:I swim almost as well as he does in the pool.
A+... as + 形/副原级+ as + B...。( A 和 B一样......)
句型1
形容词副词的原级
例句:My job is not as / so difficult as yours.
A+ ... not as/so + 原级 + as+ B... 。( A不如B...)
句型2
形容词副词的比较级
例句:My room is much cleaner than yours.
A + be + 比较级 + than + B (A比B...)
句型1
形容词副词的比较级
例句:Which is bigger, Beijing or Shanghai?
Which / Who + be + 比较级, A or B? (A和B哪一个更...)
句型2
形容词副词的比较级
例句:The weather is getting colder and colder.
例句:The car is moving faster and faster.
比较级 + and + 比较级 (越来越...)
句型3
形容词副词的比较级
例句:The more patient you are, the fewer mistakes you will make.
例句:The harder you work, the more you will learn.
句型:The + 比较级..., the + 比较级...(越...就越...)
句型4
形容词副词的比较级
Among the two waste disposal methods, this one is the more practical of the two.
句型:主语+谓语动词+the+比较级+of the two+...
(主语是两者中较……的那个。)
句型5
形容词副词的比较级
This river is cleaner than any other waterway in this area.
主语+谓语动词+比较级+ than any other+单数名词/the other+复数名词.
表示“一个人或物比同一范围内的任何其他一个都……”。
句型6
This factory cuts pollution more effectively than the other factories in the town.
形容词副词的比较级
Compared with water or air pollution, land pollution would cost much more to deal with.
The new policy makes the local environment far better than people expected.
比较级前可加much, even, still, a little, a bit, far, a lot等表示程度
程度修饰语:
形容词副词的最高级
例句:The Yangtze River is the longest river in China.
主语 + be + the + 最高级 + 比较范围
句型一:
形容词副词的最高级
例句:Which is the largest, China, America or Canada?
Which / Who + be + the + 最高级, A, B or C?
句型二:
形容词副词的最高级
例句:Beijing is one of the largest cities in the world.
one of the + 最高级 + 名词复数
句型三:
形容词副词的最高级
例句:The Yangtze River is the first longest river in our country.
the+序数词+形容词最高级+可数名词单数+in/of短语.
句型四:
形容词副词的最高级
例句:Mondays are my busiest days.
最高级前不加the的情况 (最高级前不加the的情况)
注意:
形容词副词的最高级
用in表示在某个范围内
比较范围的表示
例句:He speaks English (the) best in his company.
用of表示在某个群体中
例句:He is the oldest of the three.
巩固练习
一、用所给词的适当形式填空
1. Bob is as _______ (tall) as Tim.
2. This dress is ___________ (cheap) of all.
3. Sunday is my __________ (busy) day in a week.
4. Which is ___________ (heavy), a cow or a chicken ?
5. An apple is a little __________ (small) than a watermelon.
cheapest
busiest
heavier
smaller
tall
(动画)刚进入博物院,大家就看到了精美的金蝉玉叶,他们不禁赞叹。
(动画)Be quiet, teens. Raise your hand if you have any questions.
(动画)接下来,大报恩寺琉璃塔拱门。
(动画)Be careful. No touching, please.
(动画)现在来看,达摩渡江刺绣图。
(动画)No photos with flash, please. 因为闪关灯的光照会导致织物纤维破裂。
巩固练习
二、选择题
1. My new car cost me $12,000. Your car is only $9,800. So your car is ________ than mine.
A. cheap B. cheaper C. cheapest D. more expensive
2. Some students think Chinese is _______ than English to learn.
A. easy B. easier C. the easiest D. very easy
3. Among all the teachers in this school, Miss Tao is one of ______.
A. young B. younger C. the youngest D. the most young
4. Jinmao Tower is ________ building in Shanghai.
A. high B. tall C. highest D. the tallest
5. Which is the ____________, the sun, the moon or the earth?
A. big B. bigger C. biggest D. more big
C
B
C
D
C
(动画)刚进入博物院,大家就看到了精美的金蝉玉叶,他们不禁赞叹。
(动画)Be quiet, teens. Raise your hand if you have any questions.
(动画)接下来,大报恩寺琉璃塔拱门。
(动画)Be careful. No touching, please.
(动画)现在来看,达摩渡江刺绣图。
(动画)No photos with flash, please. 因为闪关灯的光照会导致织物纤维破裂。
比较级和最高级
变化规则
原级句型
比较级句型
最高级句型
规则
不规则
A+... as + 形/副原级+ as + B...。
A+ ... not as/so + 原级 + as+ B... 。
A + be + 比较级 + than + B
Which / Who + be + 比较级, A or B?
比较级 + and + 比较级
The + 比较级..., the + 比较级...
主语 + be + the + 最高级 + 比较范围
one of the + 最高级 + 名词复数
Which / Who + be + the + 最高级, A, B or C?
一起总结一下今日所学
(动画)判断句子是否为祈使句,需确认其是否:
(动画)发出指令
(动画)主语省略
(动画)动词原形开头
(动画)祈使句的肯定形式有三种:
(动画)do型
(动画)be型
(动画)let型
(动画)祈使句的否定形式:
(动画)don’t + do型/be型/let型
(动画)no+动词ing型
(动画)以及祈使句+and/or+陈述句的用法区别:
(动画)照这样做,and结果很美好
(动画)得这样做,or结果不如人意。
今天的内容就到这里。我们下次见。
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