形容词和副词的比较级和最高级8a-Unit 6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 。副词：用来修饰动词、形容词及其他副词的词叫副词。副词在句中多作状语. 一、形容词和副词的概念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、形容词和副词的用法形容词放在系动词be 、look、 get、 keep、turn、feel、become、seem、 grow、 smell等之后。 如:1.I am short. 2.She looks fine.3.They turn green.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副词放在所修饰的动词之后、形容词和副 词之前 。如果前面是行为动词，则后面用副词。 如: 1.She works hard .（修饰动词）2.I am very busy.（修饰形容词）3.He runs too quickly .（修饰副词）4.We play happily. （修饰动词）通常在形容词后加-ly变成副词。 slow _ real _usual _ careful_easy _ happy _heavy _ angry _slowlyusually easilyheavilyreallycarefullyhappilyangrilybigbiggerLook at the pictures and understand 看图并理解Look at the pictures and understand 看图并理解bigbiggerbiggestfastLook at the pictures and understand 看图并理解fastfasterLook at the pictures and understand 看图并理解fastfasterfastestLook at the pictures and understand 看图并理解三、形容词和副词的级形容词和副词有三个等级：原级、比较级、最高级 1.原级：即形容词和副词的原形。small, good, pretty, big, manyhard, happily, slowly, quickly 程度副词very,too,so,quite等修饰形容 词和副词的原级。如：very tall、 too hot、 so cold quite interesting run quickly 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. 2.比较级：两个人或物之间的比较。表示表示“ “较较”或或“ “更更 一些一些” ”。标志词：than (比） 单音节词通常是-er结尾；多音节或部分双音节词通 常在之前加more.如:smaller, better, taller, older, more, hardermore interesting , more quickly 3.最高级：三个或三个以上的人或物之间 的比较。标志词：in+大范围, of all, of +the+具体的数字表示表示“ “最最”的意思。的意思。（两者以上用最高级） 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;副词之前可 以不加。如 ：smallest, tallest, newest, bestmost interesting, most difficultly 构 成 方 法原 级比 较 级最 高 级单音节 词和少 数多音 节词一般在词尾加-er/或-est/ist/coldcoldercoldestfastfasterfastest以字母e结尾的形容词，加-r或-stnicenicernicestlargelargerlargest重读闭音节词只有一个辅音字母 时，应先双写辅音字母；再加-es 或-estbigbiggerbiggesthothotterhottest以“辅音字母+y”结尾的双音节词 ，先改“+y”结尾的双音节词，先 改“y”为“i”,再加-er或-esteasyeasiereasiestearlyearlierearliest多音节 词和部 分双音 节词在词前加more或mosttiredmore tiredmost tiredeasilymore easilymost easily单音节和少数多音节的形容词和副词的比较级和最高级单音节和少数多音节的形容词和副词的比较级和最高级 的构成分规则和不规则。变化如下：的构成分规则和不规则。变化如下：不规则变化， 要多加注意哦 ！ good bad many little well badly much far betterbestworseworstmoremostlessleastbetterbestfartherfarthestworseworstmoremostimportant _ _ easy_ _ wet_ _ happy_ _ careful _ _ thin _ _ good_ _ hot _ _ easily _ _ many_ _ nice _ _ big _ _ heavy_ _ delicious_ _ much_ _给出下列词的比较级和最高级more importantmost important easiereasiest wetterwettest happierhappiest more carefulmost careful thinnerthinnest betterbest hotterhottest more easilymost easily moremost nicernicest biggerbiggest heavierheaviest more deliciousmost delicious moremostMore examples:1.Mary is cleverer than her little sister.2.The new building is higher than the old one.3.His shirt is more expensive than mine.4.Kate is more beautiful than Lily is. 5.She is five years older than I am.6.He is 2 centimeters taller than her.7.This ruler is 20 centimeters longer than that one.比较级的用法： than 1.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,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 very easy, but the second one is easier.(2) 数量的比较1.我的笔比你的多.2.我喝的茶比他多.3.他吃的饭比我少.4.一班的学生比二班多.I have more pens than you (do).I drink more tea than he (does).He has less rice than I (do).There are more students in Class 1 than in Class 2.More examples:1.He is the youngest of all the children.2.This book is the most interesting of all books.3.America is the most developed country in the world.4.The Changjiang River is the longest river in China.5.He is one of the greatest scientists in China.6.The city is one of the most beautiful cities in the world.