初中英语形容词比较级讲解(含具体练习).ppt

,备课人： 杜波,1.Actions speak louder than words.事实胜于雄辩。,2.It is easier said than done.说来容易做来难。,形容词：是修饰名词（人或事物），表示名 词的性质，特征或属性一种词类。 它在句中作定语、表语和宾语补足语。,一、形容词的概念,阁下莫非就是当年华山论剑武工独步天下罕有其匹号称一朵梨花压海棠的少林寺智障大师收养的小沙弥低能的爱犬旺财踩扁的蟑螂小强曾滚过的一个粪球？,形容词作定语一般放在被修饰 的名词之前。 如: a new book, two big trees 等。,二、形容词的用法,形容词放在系动词be 、look、 smell、feel、 sound、taste、get、keep、turn、become、 seem、 grow、等之后。 如:1.I am short. 2.She looks fine. 3.you shoud keep healthy,如果形容词修饰不定代词something, anything, everything, nothing等时，要放在不定代词后面。 如:something interesting nothing new,4. 如果形容词修饰enough时， 形容词要放在enough之前、 如：old enough,三、形容词的级,形容词有三个等级：（俗话说：人有三急） 原级、比较级、最高级 1.原级：即形容词的原形。 small, good, pretty, big, many 程度副词very,too,so,quite等修饰形容词的原级。too.to , so.that adj.+enough to do 如：very tall、 too hot、 so cold quite interesting, asas ,(与一样） not as（so)as （与不一样）中间用原级。 The story is as interesting as that one. The question is not as / so difficult as that one.,big,bigger,Look at the pictures and understand 看图并理解,英语形容词的比较级,定义 . 英语句子中，将比较两个主体的方法叫”比较句型”。 . 其中，像“A比B更”的表达方式称为比较级。,比较级的构成方式:,Remember,2.多音节词在原形前加more,eg.,3.以辅音字母加y结尾的非多音节词，变y为i加-er eg. lovely（可爱的） lovelier,3. 比较级不规则变化如下:,考点1“A + be +形容词比较级 + than + B”，意思为“A比B 更”。,例如： This tree is taller than that one. The weather in Beijing is hotter than that in Heilongjiang.,A,be,_,比较级+than,B,(2011年中考真题)Nancy and Lucy are twins. In some way they look the same, but Nancy is _ than Lucy. A. tall B. taller C. tallest,(2002年中考真题)The population of China is _ than any other country in the world. A. larger B. less C. smaller D. bigger,比较级必须在同类中进行，即人与人比，物与物比，而且比较结构前后的词语要对称，特别注意在than之后不要漏掉可能出现的替代词 that ，those.,The weather in Shanghai is better than that in Chongqing,The texts in Book3 are much easier than those in Book 4,注意,。,如果主语是物主代词+名词，那么后面要用名词性物主代词 His shirt is more expensive than mine.,在比较级前可使用much，a lot， far （更加，的多），even（更，更加）， a little（有点）修饰,使原来的比较级在语意上更加明确。但very, quite不能修饰比较级。,Chickens are much smaller than cows. 鸡要比奶牛小得多 This movie is a little more interesting than that one. 这部电影比那部更有趣一些 This will make our job even more difficult 这会使我们的工作变得更困难,Chickens are more smaller than cows.,考点2“比较级 + and + 比较级”或“more and more +原级”，表示“越来越” 。,例如：It becomes warmer and warmer when spring comes.,春天来了，天气变得越来越暖和了。,It is getting cooler and cooler.,天气越来越凉爽。,Our school is becoming more and more beautiful.,我们的学校变得越来越美丽 。,考点3在含有or的选择疑问句中，如果有两者供选择，前面的形容词要用比较级形式。,例如：Who is taller, Tim or Tom? Tim还是Tom, 谁更高?,Which one is _ , this one or that one? A. good B. bad C. best D. worse,考点4. “the +比较级, the+比较级”, 表示“越越”。,例如： The more we get, the happier we feel. The sooner，the better.,The _, the better. A. much B. many C. more D. most,考点5. 表示两者中“较.”时，用“the+形容词比较级+of短语”来表达。,He is the taller of the two.,考点6. 当某一事物与其他事物作比较时，被比较事物中不能包括本身。,He is taller than any other student in his class. 他比班上其他同学都高,Shanghai is larger than any other city in China,Shanghai is larger than any city in Chongqing,Shanghai is larger than any city in China(错),Look at the pictures and understand 看图并理解,big,bigger,biggest,3.最高级：三个或三个以上的人或物之间 的比较。 表示“最”的意思。 结构：the +最高级+比较范围（常用of,in,among引导的短语表达） 标志词：in+大范围, of all, of +the+具体的数字 The rabbit is the smallest of them.兔子是它们中最小的 The Great Wall of China is one of the greatest wonders in the world. 中国长城是世界上最伟大的奇观之一 I think roses are the most beautiful of all the flowers 我认为玫瑰花在所有的花中是最漂亮的 单音节词通常是-est结尾；多音节或部分双音节词通常在之前加most. 在形容词的最高级前必须加the; 如 ：smallest, tallest, newest, most interesting,考点7. 比较级与最高级的结构可以转换，意思不变。,The Changjiang River is the longest river in China. 长江是中国最长的河流。 The Changjiang River is longer than the other rivers in China. 在中国，长江比其他河流都长。 The Changjiang River is longer than any other river in China. 在中国，长江比其他任何河流都长。,注意,1.The city is one of the most beautiful cities in the world.,one of+ the+最高级+复数名词,Which/Who+ 比较级，A or B? Which/Who+ 最高级，A ，B or C?,2.Who is older, Jim or Tom ? Who is the tallest, Jim , Mike or Tom,Which language is _ , English, French or Chinese? A. difficult B. more difficult C. the most difficult,C,注意,7. Mary is the tallest of all the sisters in the family .,在使用形容词最高级时，一定要把自己包括 在比较的范围内。,8.This is the third largest city in China .,当表示“第二，第三”等意思时，经常在最高 级的前面加second, third,等词。,9.Its our largest machine in our factory.,当最高级前有物主代词修饰时，其前不加 定冠词the.,练习：用所给形容词的适当形式填空。 Her hair is _ (long) than mine. Who is _ (short), Tom or Jack? Lily is _ (quiet) than her sister. Tina, please come to school a little _ (early) next time. The _ (hard) you study, the _ (good) grades youll get. It becomes _ and _ (hot) when summer comes.,longer,shorter,quieter,earlier,harder,better,hotter,hotter,练习：单项选择。 1. This one is too large. Can you show me a _one? A. larger B. large C. small D. smaller 2. Do you think March is _ than January? Yes, its _ warmer. better, a little B. well, much C. worse, very D. nicer, quite,3. Her bag is newer than _. A. mine B. my C. me D. I 4. The weather in North China is colder than _ in South China. A. B. this C. the one D. that,5. Which one is _, this one or that one? A. good B. bad C. best D. better 6. I think your room is _ bigger. A. a lot B. a lot of C. lots of D. more,Follow ups(随堂练习),1、-Mr Zhou, all of the students in our group, who lives _? -I think Li Lei does. A. fat B. father C. farthest D. farest 2、The Changjiang River is _ than any other river in China. A. shorter B. longer C. shortest D. longest 3、Bob never dose his homework _ Mary. He makes lots of mistakes. A. so careful B. as carefully as C. carefully as D. as careful as 4、_ she is, _ she feels. A. The more busy, the more happy B. The busy, the happy C. Busier, happier D.The busier, the happier 5、The