八年级英语上Unit6形容词和副词的比较级与最高级专项讲练课件人教版新目标

一、形容词和副词的概念
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.
二、形容词和副词的用法
①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。 ②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.
(2) 数量的比较
1.我的笔比你的多. I have more pens than you (do). 2.我喝的茶比他多. I drink more tea than he (does). 3.他吃的饭比我少. He has less rice than I (do).
4.一班的学生比二班多. There are more students in Class 1 than in Class 2.
⑤通常在形容词后加-ly变成副词。 slowly real → ______ really slow → ______ usual →______ usually careful→______ carefully easy → easily ______
happily happy→ ______
heavily angrily heavy →______ angry→ ______
② as…as ,(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“较……”或 “更……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, harder more 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“最……”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, best most interesting, most difficultly
形容词和副词的 比较级和最高级
8a-Unit 6
Revision
1.The six students put their hands closed ______(close)
in front of them. healthy 2.Do sports erery day to keep______(health).
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.
More 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.
◇Look at the pictures and understand 看图并理解
big
bigger
◇Look at the pictures and understand 看图并理解
big
biggest
bigger
◇Look at the pictures and understand 看图并理解
hotter easier earlier more tired more easily
biggest
hottest easiest earliest most tired most easily
多音节 词和部 分双音 节词
在词前加more或most easily
good→ better →best bad → worse →worst
单音节 词和少 数多音 节词
以字母e结尾的形容词，加-r或-st 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-est
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-est
big
hot easy early tired
bigger
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：
构成方法 一般在词尾加-er/ə/或-est/ist/ 原 级 cold fast nice large 比较级 colder faster nicer larger 最高级 coldest fastest nicest largest
今天是一年中最热的一天.
Today is the hottest day of the year.
他的房间是三个中最干净的一个.
His room is the cleanest of the three.
上海是中国最大的城市. Shanghai is the largest in China.
1.The new building is higher than the old one. Those apples are bigger than these ones. 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或 as 之后不要漏掉可能出现 的替代词 that ，those, one ,ones. 2.His shirt is more expensive than mine. 如果主语是物主代词+名词，那么后面要用 名词性物主代词。
fast
◇Look at the pictures and understand 看图并理解
fast
faster
◇Look at the pictures and understand
看图并理解
fast
fastest
faster
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。
many →more → most
little → less → least
不规则变化， 要多加注意哦！
well→better → best
badly→worse →worst
much→more →most
far→ farther→ farthest
给出下列词的比较级和最高级
important ______________ _________________ most important more important easier easy___________________ ___________________ easiest wettest wet___________________ ____________________ wetter happy________________ ____________________ happier happiest more careful most careful careful ________________ __________________ thinner thinnest thin _________________ __________________ better best good________________ ____________________ hotter hottest hot __________________ ____________________ more easily most easily easily ________________ ____________________ most more many________________ ____________________ nicer nicest nice ________________ ____________________ bigger big _________________ ____________________ biggest heaviest heavy______________ ____________________ heavier most delicious delicious____________ ____________________ more delicious most more much_______________ _____________________
7.Lucy is one of the tallest girls in her class.
8.Give my best wishes to you.
9.He is my best friend.
形容词最高级的用法
(…in…; …of…)