高三英语形容词与副词的比较等级ppt课件

1、ENGLISH形 容 词 与 副 词 的 比 较 等 级CHUZHONGYINYUKEJIANShow Learning aims(学习目的学习目的) n学习并掌握描画词与副词的比较级和最高级的构成。n学会运用描画词与副词的比较等级。Show Learning aimsbigbigLook at the pictures and understand 看图并了解看图并了解bigbiggerLook at the pictures and understand 看图并了解看图并了解Look at the pictures and understand 看图并了解看图并了解bigbiggerbig

2、gestfastLook at the pictures and understand 看图并了解看图并了解fastfasterLook at the pictures and understand 看图并了解看图并了解fastfasterfastestLook at the pictures and understand 看图并了解看图并了解The Comparative and Superlative Degrees of Adjectives and Adverbs(描画词和副词的比较级和最高级)大多数描画词和副词有三个等级： 1、原级，即原形。没有比较时用原级 2、比较级，表示“较或“

3、更一些。两者比较时用比较级 3、最高级，表示“最的意思。两者以上用最高级一、描画词和副词比较级和最高级的构成一、描画词和副词比较级和最高级的构成1、规那么变化 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一般在词尾加-er/或或-est/ist/coldcoldercoldestfastfasterfastest以字母以字母e结尾的形容词，加结尾的形容词，加-r或或-stnicenicernicestlargelargerlargest重读闭音节词只有一个辅音字母重读闭音节词只有一个辅音字母时，应先双写辅音字母；再加时，应先双写辅音字母；再加-es或或-estbi

4、gbiggerbiggesthothotterhottest以以“辅音字母辅音字母+y”结尾的双音节词，结尾的双音节词，先改先改“+y”结尾的双音节词，先改结尾的双音节词，先改“y”为为“i”,再加再加-er或或-esteasyeasiereasiestearlyearlierearliest多音节词和部分双音节词在词前加在词前加more或或mosttiredmore tiredmost tiredeasilymore easilymost easily原级比较级最高级good / wellbetterbestbad / badlyworseworstmany / muchmoremostli

5、ttlelessleastfarfartherfarthestfurtherfurthest一、描画词和副词比较级和最高级的构成一、描画词和副词比较级和最高级的构成2、不规那么变化二、描画词和副词的比较级和最高级的用法二、描画词和副词的比较级和最高级的用法1、表示“和一样，用“as+原级+as构造。 eg: He likes her as much as he likes his sister.2、表示“不如，用“not as/ so+原级+as构造或“less+原级+than构造 eg: He does not smoke as/ so heavily as his brother. He

6、smokes less heavily than his brother.3、表示“比更，用“比较级+ than构造。 eg: She sees me more often than she sees her brother.4、表示“中最,用“最高级+比较范围构造，比较范围为短语从句。 eg: This is the best picture in the hall. This is the best picture that he has ever painted. 根本用法二、描画词和副词的比较级和最高级的用法二、描画词和副词的比较级和最高级的用法5、表示“越来越，用“比较级+ and

7、+比较级构造或“more and more + 原级构造。 eg: Things are getting better and better every day. She is becoming more and more beautiful.6、表示“是的几倍，用“倍数+as+原级+as构造，或者“倍数+比较级+than构造。 eg: This classroom is three times as big as that one. This classroom is twice bigger than that one. 根本用法二、描画词和副词的比较级和最高级的用法二、描画词和副词的比较

8、级和最高级的用法1、描画词的比较级前面普通不加冠词，但表示“两者中较的时候，要用“the+比较级+of 。 eg: She is better than she was yesterday. She is the taller of the two girls.2、描画词的最高级前面普通加定冠词，而副词的最高级前面可加可不加。 eg: This book is the most difficult that I have ever read. He jumped (the) highest of the three boys.3、比较级前面可以用even(更加)，much(得多)，far(得多

9、)，a littlie(一点)，a bit(一点)，slightly(些微地)，a great deal(大量)，a good deal(大量)，a lot(大量)，still(还，还要)等词语表示不定程度或数量。 eg: I am even less lucky. She is far better than me at writing. 特殊用法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. farest2、The Changjiang River is _ than any other river in China. A. shorter B. longer C. shortest D. longest3、Bob never dose his homework _ Mary. He makes lots of mistakes. A. so careful B. as carefully as C. carefully as D. as careful as4、_ she is, _ she feels. A. The more busy,