八年级上英语unit6比较级和最高级的用法.ppt

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1、Unit6第一课时第一课时比较级和最高级的用法比较级和最高级的用法形容词比较级形容词比较级一般用在比较两个一般用在比较两个事物的时候。事物的时候。最高级最高级，顾名思义就是在比较，顾名思义就是在比较时候，某一事物具有某方面时候，某一事物具有某方面最典型的特征。最典型的特征。一、形容词、副词的比较级、最高级的构成一、形容词、副词的比较级、最高级的构成规则：规则： 1 一般在形容词、副词后加上一般在形容词、副词后加上er表示表示比较比较级级加加 上上est表示表示最高最高 级级 原级原级 比较级比较级 最高级最高级 1）small small small 2) young young young

2、3) fast fast fast er esteresterest 2 以不发音的以不发音的e结尾的，只加上结尾的，只加上r表示表示 比比 较级，加上较级，加上st表示最高级。表示最高级。 1) large large large 2) nice nice nice 3) fine fine fine rstrstrst 3 以辅音字母以辅音字母+y 结尾的，先把结尾的，先把y变变i ；然后；然后加加 er表示比较级；加上表示比较级；加上 est表示最高级。表示最高级。原级原级 比较级比较级 最高级最高级1）early early early2) happy happy happy ieri

3、estieriest4 重读闭音节重读闭音节双写最后一个辅音字母双写最后一个辅音字母，然，然后加上后加上 er 表示比较级；加上表示比较级；加上est表示最高级。表示最高级。 原级原级 比较级比较级 最高级最高级1） big big big 2) thin thinner thinnest3) wet wetter wettest4) fat fatter fattest 5) hot hotter hottest gergest5 双音节和多音节的形容词，副词，在这些形双音节和多音节的形容词，副词，在这些形容词和副词容词和副词前加上前加上more表示比较级；加上表示比较级；加上most表示最

4、高级。表示最高级。 原级原级 比较级比较级 最高级最高级1) happily happily happily 2) heavily heavily heavily moremost moremost 不规则变化，不规则变化，要多加注意哦！要多加注意哦！ good bad many little well badly much far betterbestworseworstmoremostlessleastbetterbestfartherfarthestworseworstmoremost原级原级 比较级比较级 最高级最高级fastshortbigthinfunnyheavyathletic

5、expensivefarfastershorterbiggerthinnerfunnierheaviermore athleticmore expensivefartherfastestshortestbiggestthinnestfunniestheaviestmost athleticmost expensivefarthestTom is as tall as Mike. as+形容词原形形容词原形+asThere are as many students in our school as yours. Tom is three times as old as Mike. 物体物体A+b

6、e+比较级比较级+than+物体物体B This bridge is longer than that one. Our school is larger than theirs. 比较级的用法：比较级的用法： than1.汤姆比杰克高.2.这只箱子要比那只箱子大.3.那些苹果比这些大.4.第一个问题很容易第一个问题很容易,但第二个更容易但第二个更容易.Tom is taller than Jack.This box is bigger than that one.Those apples are bigger than these ones.The first question is ver

7、y easy, but the second one is easier. 。 1.Which do you like _(well),apples or oranges?2.Who is _(old),Jim or Tom ?3.Jack is running _ and _(fast) .4.Our country is becoming _and _ (beautiful). 5.He is _(tall) of the the two boys. betterolderfasterfastermore more beatifulthe tallerbigbiggerLook at th

8、e pictures and understand 看图并理解Look at the pictures and understand 看图并理解bigbiggerbiggestfastfasterLook at the pictures and understand 看图并理解fastfasterfastestLook at the pictures and understand 看图并理解Zen Zhiwei is short .Tom is shorter than Zen Zhiwei .Xiao xin is the shortest of them .Liu Yifei is thi

9、n.Xiaoming is thinner than Liu Yifei .Mike is the thinnest of allCompetition(写出下列单词的比较级和最高级) 1 popular 2 short 3 thin 4 funny 5 good 1 popular / more popular / most popular2 short / shorter / shortest3 thin / thinner / thinnest4 funny / funnier / funniest5 good / better / best肥肥肥肥-沈殿霞沈殿霞100kgheavyhe

10、avier180kgthe heaviest220kgMr. WangMr. LiMiss Shen is heavy.Mr. Wang is heavier.Mr. Li is the heaviest of the three .Ge You is funny.Zhao Benshan is funnier.Pan Changjiang is the funniest of them . 250,000 RMB. 50,000 RMB.The green car is the most expensive.The red cat is more expensive than the bik

11、e.The bike is expensive.500 RMBJim Tom Stallone is the most athletic of the three.Tom is more athletic than Jim.Jim is athletic.形容词和副词的比较级和最高级的用形容词和副词的比较级和最高级的用法法 及常用及常用句型句型（1）前者程度超过后者用）前者程度超过后者用比较级比较级： A+比较级比较级+than+ B He is taller than she.（2）三个或三个以上比较用三个或三个以上比较用最高级最高级： A+ (the) +最高级最高级+of/in+范围范围

12、 He is the tallest in his class.Yao Ming is Jordan.Jordan is tall.Yao Ming is taller.Jordan2.26m1.98mtaller thanZeng Zhiwei is short.Pang Changjiang isPang Changjiang is Zeng Zhiwei.shorter. shorter thanLiu Huan is heavy .Fei Mao isFei Mao is Liu Huan.80kg90kgheavier .heavier thanLin Xinru is thin.L

13、iu Yifei is Liu Yifei is Lin Xinru.45kg48kgthinner.thinner thanmore outgoingLi Yong is Cheng long.Cheng Long is outgoing.Li Yong is more outgoing.outgoingmore outgoing thanathleticCheng Long is more athletic than Li Xiaopeng.Li Xiaopeng is athletic.Cheng Long is more athletic.more athleticLily Lucy

14、Who,s hair is longer?Lucys hair is longer than Lilys . Lilys hair is long.Which goes faster, the bike or the car? The car goes faster than the bike. The bike goes fast.Jenny Mary Who is calmer? Jenny or Mary?Mary is calmer than Jenny.Jenny is calm.Which runs faster, the dog or the sheep?The dog runs

15、 faster than the sheep.The sheep runs fast.Who is more beautiful, the girl or the nurse?The nurse is more beautiful than the girl.The girl is beautiful.Jim Tom Who is more athletic?Tom is more athletic than Jim.Jim is athletic.Which mountain is higher?Mountain Fuji Huangshan Mountain 用所给形容词或副词的适当形式填

16、空用所给形容词或副词的适当形式填空： 1 He gets up a little_ than I.(early) 2 You do the work _ than Tom.(well) 3 She is much _ than her brother. (short) 4 This picture is _ than that one .(beautiful) 5 Which is _,the sun or the moon?(big) 6 Jack is _of the two boys.(clever)earlierbettershorter more beautifulbigger th

17、e cleverer比较级用法比较级用法：两者两者比较比较，常用句型：，常用句型：A+ (much, a little等修饰词等修饰词)比较级比较级+than+ B 完成句子完成句子： 1 这个盒子比那个重。这个盒子比那个重。 This box is _ _that one. 2 你下次一定要做得更好。你下次一定要做得更好。 You must _ _next time. 3 他学习比他的哥哥努力得多。他学习比他的哥哥努力得多。 He studies _ _his brother. 4.谁想去最远的那个公园谁想去最远的那个公园? Who wants to go to _ _ park?heavier than do bettermuch harder thanthe farthest