1、“”总复习:形 容 词 与 副 词 的比 较 等 级“”Look at the pictures and understand 看图并理解biggestbiggerbig“”Look at the pictures and understand 看图并理解fastfasterfastest“”当我们形容人或事物,常用到形容词和副词。那么要比较两个或多个人或事物,就会用到形容词和副词的比较级、最高级。e.g.Tom is short.Jack is short.But Jack is shorter than Tom.Jack is the shortest in his class.“”大多数
2、形容词和副词有三个等级:1 1、原级,即原形。、原级,即原形。(没有比较时用原级)22、比比较较级级,表表示示“较较”或或“更更一一些些”。(两者比较时用比较级)33、最最高高级级,表表示示“最最”的的意意思思。(三者及以上用最高级)“”一、原级的常见用法二、比较级的常见用法三、最高级的常见用法四、变化规则形容词和副词“”一、原级的常见用法1.表示“非常,相当,太”,用very,so,quite,too+原级。2.表示“和一样”,用“as+原级+as”结构。eg:He works as hard as his sister.3.表示“不如”,用“not as/so+原级+as”结构或“less
3、+原级+than”结构。eg:He does not smoke as/so heavily as his brother.1.He smokes less heavily than his brother.4.表示“是的几倍”,用“倍数+as+原级+as”结构,或者“倍数+比较级+than”结构。eg:This classroom is three times as big as that one.Our school is twice bigger than theirs.“”二、比较级的常见用法1.比较级+than(比更)eg:I am taller than Tom.Lisa sing
4、s better than Nelly.2.Which/Who is+比较级,A or B?表示“A、B两事物比较,其中哪一个较?”eg:Which T-shirt is nicer,this one or that one?Who is more active,Mary or Kate?“”3.在形容词比较级前可以用even(更加),much(得多),a lot(得多),far(得多),a little(一点),a bit(一点)等修饰,表示程度。eg:He is much more hard-working than before.Shes a little more outgoing t
5、han me.4.形容词的比较级前面一般不加冠词,但要强调两者中其中之一,表示“两者中较的一个”时,要用“the+比较级+of”。eg:She is the smarter of the two girls.“”5.The+比较级,the+比较级表示“越越”eg:The busier he is,the happier he will be.5.6.“比较级+and+比较级”或“more and more 原级”表示“越来越”6.eg:Things are getting better and better.7.Our city is becoming more and more beauti
6、ful.7.“比较级+than any other+名词(单)”表示“比其他任何一个都”5.eg:China is bigger than any other country in Asia.“”1.进行比较时,必须是同类事物相比较。1).His ruler is longer than I.2).His ruler is longer than mine.8.使用形容词比较级时需注意以下几点:2.than后面接代词时,一般要用主格形式,但在口语中也可使用宾格形式。如:My brother is taller than I/me.3.当需要表示一方超过另一方的程度时,可以用much,a lot
7、,a little,a bit,even,far等来修饰形容词比较级。注意:比较级不能用very,so,too,quite等修饰。如:He is much more serious than Sam.“”4.形容词比较级后面往往用连词than连接另一个比较的人或事物,但在上下文明确的情况下,形容词比较级可单独使用。如:My sister is tall,but my aunt is taller.我姐姐个子高,但我姑姑个子更高。“”三、最高级的常见用法:1.(the)+最高级+of/in短语注:形容词的最高级前必须有the,而副词的最高级前the可以省略。eg:Mary has three b
8、rothers.Smith is the tallest of the three.Jim jumps(the)highest in his class.1.2.one of the+最高级+名词(复数),表示“最之一”eg:Shanghai is one of the biggest cities in China.“”3.“序数词+最高级”,表示“第几最”。eg:The Yellow River is the second longest river in China.4.“Which/Who+动词+最高级,A,B or C?”表示“A,B,C三者比较,哪一个/谁最?”eg:Which i
9、s the biggest,the sun,the earth or the moon?“”形容词等级变化规则:一、规则变化:1.一般在词尾+er/est。如:tall,short2.以e 结尾的+r/st。如:nice,large3.以“辅音字母+y”结尾的双音节词,变y 为i 再加er/est。如:easy,happy,heavy,dry,healthy,shiny,sunny等。4.重读闭音节词,词尾只有一个辅音字母的,需要双写这个辅音字母,再+er/est。如:wet,fat,thin,hot,big,red。5.多音节和部分双音节词,词前要+more/most。如:delicious,important,interesting,boring“”二、不规则变化