.,形容词和副词的比较级和最高级。 大多数形容词和副词有三个等级：原级、比较级、最高级。原级指形容词和副词的原形；比较级用来表示“较”或“更一些”；最高级则表示“最”,Grammar：,.,一、形容词和副词的原级： 表示两者（A与B）在某一方面相同时用句型： A + 谓语 + as + 形容词或副词的原形 + as+ B. eg: Tom 和 Sam 一样高。 Tom is as tall as Sam. Tom 和 Sam 跑得一样快。 Tom runs as fast as Sam. 英语和数学一样重要。 English is as important as math. Lucy 和Lily 学习一样好。 Lucy studies as well as Lily.,.,2. 两者（A与B）在某一方面A不如B时用句型： A + 谓语+ not as / so + 形容词或副词的原形 + as+ B. eg: Tom 不如 Sam 高。 Tom is not as / so tall as Sam. Tom 不如 Sam 跑得快。 Tom doesnt run as / so fast as Sam. 英语不如数学重要。 English is not as / so important as math. Lucy 不如Lily 学习好。 Lucy doesnt study as / so well as Lily.,.,形容词的比较级,一： 用法 用于两者（人或物）之间，表示“其中一个比另一更”或“较”，后面通常用连词than连结另一个比较的对象，其基本句型是： 主语谓语（系动词）形容词比较级than对比对象。 eg: 吉姆比迈克高。 Jim is taller than Mike. 迈克比吉姆矮 Mike is shorter than Jim.,.,A + 谓语 + 形容词或副词的比较级 + than + B. eg: Tom 比 Sam 高。 Tom is taller than Sam. Tom 比 Sam 跑得快。 Tom runs faster than Sam. 英语比数学重要。 English is more important than math. Lucy 比Lily 学习好。 Lucy studies better than Lily.,.,Which goes faster, the bike or the car?,The car goes faster than the bike.,The bike goes fast.,.,Which flies higher,the plane or the bird?,The plane flies higher than the bird .,The bird flies high.,.,Which runs faster, the dog or the sheep?,The dog runs faster than the sheep.,The sheep runs fast.,.,￥100 ￥200,Which is more expensive , the brown coat or the the yellow coat?,The yellow coat is more expensive than the brown one.,The brown coat is expensive.,.,Donald duck,Harry Potter,Which is more interesting?,Harry potter is more interesting than Donald duck.,Donald duck is interesting.,.,than 后面接代词时，一般要用主格，但在口语中也可以换成宾格。 eg: He works more carefully than I (me). 他比我工作更细心。 （3）“比较级+and+比较级”表示“越来越” eg: He becomes fatter and fatter. 他越来越胖了。 She studies better and better. 她学得越来越好了。,.,（4）“The +比较级，the +比较级”表示“越，越” eg：他越忙就越高兴。 The busier he is ,the happier he feels. 你吃的越多，你就越胖。 The more you eat, the fatter you will become. （5）形容词比较级前可加数词，表示“大（小）多少”“长（短）多少” eg:He is five years younger than me. 他比我小五岁。 （6）表示倍数时用:times+比较级+than eg:My room is three times bigger than yours.,.,Which means of transportation is safer?,bus,plane,.,Which country is larger?,U.S.A,Australia,.,The yellow River,Which river is longer?,The Changjian River,.,vegetables,pizza,Which is more delicious?,.,Who is more popular?,Beckham,Zhao Benshan,.,1、形容词和副词的比较级的规则变化：,一般直接在词尾加er或 est,tall,taller-tallest,light,lighter-lightest,以字母e结尾的直接加r或st,nice,nicernicest,fine,finerfinest,以辅音字母加y结尾的形容词，要变y为i再加er或est,heavy,heavierheaviest,busy,busier-busiest,以重读闭音节结尾且末尾只有一个辅音字母的 形容词，要双写末尾的辅音字母再加er或 est,thin,thinnerthinnest,hot,hotterhottest,.,多音节词或部分双音节词的比较级和 最高级在其前面加more或most。,beautiful,more beautifulmost beautiful,important,more importantmost important,Interesting more interesting most interesting,quickly more quickly most quickly,tired more tired most tired,.,2、不规则形容词的比较级最高级,better,best,more,most,less,least,worse,worst,farther/further,farthest/furthest,older/elder,oldest/eldest,.,（8）修饰比较级的词 much(的多)、far (的多)、 a lot(的多)、even(更)、still（仍然）、 any (任何) a bit(一点儿) a little (一点儿) eg: This city is much more beautiful than that one.这座城市比那座城市漂亮的多。 Today is even hotter than yesterday. She drives still more carefully than her husband. 她开车仍然比她丈夫认真。,.,（9）修饰形容词原级的词： very、rather、pretty、so、quite、too He is too tired to walk on. 他太累了以至于不能再继续走了。 My brother runs so fast that I cant follow him. 我弟弟跑得那么快以至于我跟不上他。 His lifestyle is quite different from mine. 他的生活方式和我的相当不同。,.,三、形容词、副词的最高级 形容词和副词的最高级常用来表示三者或三者以上人或物的比较。形容词最高级前必须加定冠词the, 而副词的最高级前可以不加定冠词the。但是当形容词的最高级前已经有了作定语用的形容词性的物主代词或名词所有格时，不在加the。 1、主语+谓语+the +形容词或副词的最高级 +of/in短语。表示“主语是中最的”。 My mother is the busiest in my family. 我妈妈是家中最忙的。 I jump (the) farthest in my class. 我是我们班跳得最远的。 Tom is the tallest of all the students. Tom是所有学生中最高的。,.,2、one of the+形容词最高级+cn.复数 “最之一”。 Beijing is one of the largest cities in China. 北京是中国最大城市之一。 3、the + 序数词 + 形容词最高级 + 名词 表示“第几大长高” The Yellow River is the second longest river in China黄河是中国第二长河。 4、Which/Who +谓语+ the +形容词或副词最高级, A ,B or C ? 表示“三者中哪一个更、最” Which is the biggest , the moon, the earth or the sun ? 月球、地球和太阳哪一个更大？,.,四、 比较级与最高级的互换1Jim is taller than any other boy in our class.(吉姆比我们 班上任何一个男孩都高) = Jim is taller than the other boys in our class.(在我们班上吉姆其它的男孩高) = Jim is the tallest in our class.（吉姆是我们班最高的） 2. Jim is taller than any girl in our class.（吉姆比我们班的 任何一个女孩都高）,.,I.用形容词的正确形式填空 1.Which do you like _ (well), apples, pears or bananas? 2.I think this story is _ (interesting) than that one. 3.In the morning he is _ (early). His father is _ (early) than he. His mother is the _ (early) of the three. 4.The Yellow River is the second _ (long) river in China. 5.He thinks his corn is _ (delicious) of all the food. 6.I feel math is _ (difficult) than Chinese.,best,more interesting,early,earlier,