unit3形容词副词比较级和最高级.ppt

1、形容词、副词 原级、比较级,一、规则变化： 1、一般直接在词尾加er; est talltaller-tallest lightlighter-lightest 2、以字母e结尾的直接加r; nicenicernicest finefinerfinest 3、以辅音字母加y结尾的形容词，要变y为i再加er; est heavyheavierheaviest busybusier-busiest 4、以重读闭音节结尾且末尾只有一个辅音字母的形容词，要双写末尾的辅音字母再加er; est thinthinner-thinnest hothotterhottest bigbiggerbiggest

2、5、多音节形容词或部分双音节形容词变比较级在前面加more, beautifulmore beautiful importantmore important 6、以ly结尾的副词，比较级在原型前加more easily- more easily 两个形容词early和friendly除外 earlyearlier friendlyfriendlier/more friendly,二、不规则形容词的比较级最高级,注：older 一般指年龄大小； My father is older than my mother. elder指长幼关系(一般修饰名词作定语); My elder brother i

3、s a driver. farther指距离更远； further指抽像的. I want to study English further. further reading,long large hot easy good happy big slowly,longer,larger,hotter,easier,better,happier,bigger,more slowly,写出下列形容词和副词的比较级,9. important 10. bad 11. well 12. useful 13. few 14. hard 15. much,more important,worse,bette

4、r,more useful,fewer,harder,more,adj. adv. 比较级、最高级的构成 P93,happier,more easily,harder,larger,thinner,less,more,worse,比较级的用法 1、两者之间的比较，句中有明显的标志词than Tom is taller than John 2、Which/Who is + 比较级, A or B ? Which is easier, maths or English? 3、能修饰比较级的副词及短语：much(的多)、 even(更)、still（还是的多）、 a little(一点点)、a lo

5、t（的多）. a bit（一点点） This city is much more beautiful than that one Today is even hotter than yesterday.,比较级的特殊用法,the + 比较级 + of the two/twins(双胞胎） 两者中较的一个,He is _ (old) of the two boys.,the older,Lucy is _ (clever) of the two girls.,the cleverer,注意前面要加上比较级前要加the,2. the +比较级，the比较级 越就越,你越粗心，犯的错误就越多。,Th

6、e _ you are, the _ mistakes you will make.,more careless,more,3. 比较级+and+比较级 越来越 当形容词或副词为多音节时，必须用 more and more + 原级,The population is growing _.越来越快,faster and faster,The city has become (越来越漂亮) _.,more and more beautiful,The more you eat, the fatter you will become,4.表示“大3岁”，“长2米”时，要用 数量词+比较级,He i

7、s _ than I. 他比我大三岁。,three years older,The bridge is _ than that one. 这条桥比那条长两米。,two meters longer,5.在比较级中，用that代替上述出现过的不可数名词，用those代替上述出现过的复数名词。,The water in the glass is cleaner than _ in the river. 杯子里的水比河里的要干净。 I like these pictures better than _ on the wall. 和墙上的画相比，我更喜欢这些。,that,those,原级的用法 1、ve

8、ry、so、quite、too修饰原级 2、as as “和一样”中间用原级 English is as important as math. The question is not as / so difficult as that one. 3、not as/so + 原级+ as “和不一样”“不如” English is not as/so important as math.,我和你一样大。 I am _ you. 他跑得不及我快。 He _ run _ I.,as old as,doesnt,as/so fast as,原级、比较级、最高级互换,倍数asas = 倍数比较级than

9、,这本书比那本厚2倍。 This book is _ as that one. The book is _ than that one.,three times as thick,twice thicker,3.同一范围内物体比较时，句子主语不能包括在比较对象的范围之内（加上“任何其它的”）。,He studies harder than any student in his class. (T or F),other,He studies harder than all the students in his class. (T or F),other,He studies harder t

10、han anyone in his class. (T or F),else,The moon is closer to us than _ star / stars. (any, any other),any,China is larger than _ country in Africa. (any, any other),any,China is larger than _ countries in Asia. (the, the other),the other,用括号内形容词和副词的适当形式填空 1.Jack isnt so _ (clever) as John. 2.Tom wor

11、ks as _ (hard) as Mary. 4.Its _ (hot) today than yesterday. 5.This park looks much _ (good) than that one.,cleaver,hard,hotter,better,Li Fen draws better of the two girls.,the better,9. Its more bigger than a chicken. 10. He is younger of the two. 11. My classroom is bigger than you. 12. The girl is

12、 very taller.,much,the younger,yours,tall,改错: 1. His computer is cheaper than I. 2. Jim is very older than his sister.,I,mine,much,very,改错: 1. His computer is cheaper than I. 2. Bill is taller than any boy in his class. 3. Mary sings better than any other boy in her class. 4. Jim is very older than his sister. 7. Li Fen draws better of the two girls.,I,mine,any boy,any other boy,any boy,any,other,very,much,the better,boy,better,9. Its more bigger than a chicken. 10. He is younger of the two. 11. My classroom is bigger than you. 12. The girl