1、Unit 5Lesson 6Round Up形容词比较等级的含义：形容词有三个比较等级：1、原级，即原形2、比较级，表示“较”或“更一些”3、最高级，表示“最”。形容词变比较级和最高级构 成 方 法原 级比 较 级最 高 级单音节词和少数双音节词一般在词尾加-er/或-est /ist/talltallertallestfastfasterfastest以字母e结尾的形容词，加-r 或-stnicenicernicest以重读闭音节结尾且末尾只有一个辅音字母时，应先双写这个辅音字母；再加-es或-estbigbiggerbiggestthinthinnerthinnest以“辅音字母+y”结尾
2、的词，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mostbeautifulmore beautifulmost beautifulinterestingmore interestingmost interesting一、形容词比较等级的规则变化如下：二、不规则形容词的比较级最高级原级比 较 级最 高 级good/wellbetterbestmany/muchmoremostlittlelessleastill/bad/badlyworseworstfarfarther/further
3、farthest/furthestoldolder/elderoldest/eldest表示两者的比较时用比较级。如：Liu Xiang is taller than Jim.“A+be+形容词比较级+than+B”意思为“A比B更”表示三者或三者以上中“最”时，用最高级。如：Yao Ming is the tallest of the three.“A+be+the+形容词最高级+范围”意思为“A在范围内最”I am the biggest.I am big.I am bigger than the wolf.My son is smaller than me.zebra is smalle
4、r than me.I am is the smallest.My sister is older than me.My mom is older than me.I am the oldest.I am the smallest.I am smaller than the red apple.I am small.I am the tallest.I am tall.I am taller than you.I am heavier than you.I am heavy.I am the heaviest.My neck is the longest.My neck is long.My
5、neck is longer than you.练 习1.tall _ _ 2.nice _ _ 3.strong _ _4.old _ _5.big _ _6.thin _ _7.heavy _ _8.beautiful _ _9.good _ _tallerstrongeroldertalleststrongestoldestbiggerbiggestthinnerthinnestnicernicestheavierheaviestmore beautifulmost beautifulbetterbest1.Tom is _(tall)than Jim.2.Li Lei is the _
6、(young)boy in his class.3.Who is _(thin),you or Helen?Helen is.4.Whose pencil-box is _(big),yours or hers?5.Does Nancy sing _(well)than Helen?Yes,she does.6.My eyes are _(big)than hers.7.Which is _(heavy),the elephant,the chick or the pig?练 习youngestthinnerbiggertallerbetterbiggerheaviestHomework:以后和别人比身高体重时，记得用英文炫一下哦！
