比较级讲解ppt课件.ppt

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1、 形容词与副词的比较级1. 大多数形容词与副词有三个等级： 原级，比较级，最高级。其中比较级表示“ 更.” ，用于两者（人和事物） 之间的比较，说明 “前者比后者更.” 比较级常用的修饰词有: even (甚至）；much (.得多）； still （仍然）； a little （一点）； a lot (很）注意：比较级不能用的修饰词有: very; too; quite; so2. 形容词与副词的比较级的构成： 规则变化（1）单音节的形容词，一般在词尾直接加 ereg: smart smarter fast faster high higher tall taller long longer

2、 short shorter hard harder quiet quieter slow slower(2) 以不发音字母 e 结尾的形容词，直接在词尾加 r eg: nice nicer fine finer large larger wide wider close closer late later (3) 以辅音字母加 y 结尾的形容词， 先变 y 为 i , 再加 er eg: easy easier busy busier heavy heavier funny funnier early earlier lazy lazier friendly friendlier shy s

3、hier 4. 以重读闭音节结尾词，如果词尾只有一个辅音字母，并且前面也只有一个元音字母，先双写辅音字母辅音字母再加 er eg: big bigger hot hotter thin thinner fat fatter(5) 多音节的形容词，在词钱直接加 more eg: outgoing more outgoing popular more popular difficult more difficult beautiful more beautiful important more important interesting more interesting (6) 由形容词加 ly

4、构成的副词，以及由ing或ed 结尾的 形容词，直接在词前加more eg: slowly more slowly loudly more slowly quietly more quietly clearly more clearly boring more boring bored more bored exciting more exciting excited more excited不规则变化：1. good / well better2. bad / badly worse3. many / much more4. little less5. far farther / furth

5、er6. old older / elder3. 形容词与副词的比较级的用法：（1） 主语+ be + 比较级 + than + 比较的对象 表示 “ .比.更. eg: Tom is taller than Bob. Tom isnt taller than Bob. Is Tom taller than Bob? Yes, he is. No, he isnt. eg: I am more outgoing than him. I am not more outgoing than him. Are you more outgoing than him? Yes, I am. No, I

6、am not.(2) 主语+ 实义动词实义动词+ 比较级 + than + 比较的对象 eg: He runs faster than me. He doesnt run faster than me. Does he run faster than me? Yes, he does. No, he doesnt.eg: I sing better than him. I dont sing better than him. Do you sing better than him? Yes, I do. No, I dont.3. 比较级 + and + 比较级 ： 表示 “ 越来越. eg:

7、 Our life is getting better and better. The weather gets hotter and hotter.4. more and more + 原级 ： 表示 “越来越. eg: Our school is becoming more and more beautiful. He is running more and more slowly.5. the + 比较级， the + 比较级 ： 表示 “越. , 就越 . eg: The more you read, the more you know. The more you eat, the f

8、atter you are.6. 同级之间的比较： 肯定句：as + 原级原级 + as : 与.一样 否定句： not as / so + 原级 + as : 与.不一样 基本句型： （1） 主语+ be + as + 原级+ as +比较的对象 eg: Jim is as tall as you. Jim is not as/ so tall as you. Is Jim as tall as you ? Yes, he is. No, he isnt.Linda is as outgoing as him. Linda is not as / so outgoing as him.Is

9、Linda as outgoing as him?Yes ,she is. No, she isnt.(2). 主语+ 实义动词+ as + 原级+ as + 比较的对象 eg: Jack runs as fast as me. Jack does not run as / so fast as me. Does Jack run as fast as me? Yes, he does. No, he doesnt.Tom works as hard as Mary.Tom does not work as / so hard as Mary.Does Tom work as hard as

10、Mary?Yes, he does. No, he doesnt.形容词与副词的转换及使用：eg: This is an interesting book. He spoke too loudly just now.形容词变副词的方法：（1）一般情况直接在形容词为加 ly eg: loud loudly quiet quietly quick quickly (2) 以元音字母加 e 结尾的形容词，去e 加 ly eg: true truly(3) 以辅音字母加e 结尾的形容词， 直接再词尾加 ly eg: wide widely strange strangely (4) 以 y 结尾的形容

11、词，先变 y 为 i 再加 ly eg: easy easily angry angrily heavy heavily happy happily (5) 以 le 结尾的形容词，去 e 加 y eg: terrible terribly possible possibly 反意疑问句： 如果陈述部分是肯定的，疑问部分就用否定的；反之，如果陈述部分是否定的，那么疑问部分就用肯定的。若前面陈述部分的主语是this / that ,疑问部分的主语就用 it 代替eg: This is an orange, isnt it? Jim likes listening to music, doesnt he ? She is good at swimming, isnt she? Tom didnt go to school yesterday, did he? He isnt a student, is he? Linda doesnt work hard, does she?