英語比較級(jí)課件

1、構(gòu)成法構(gòu)成法原級(jí)原級(jí)比較級(jí)比較級(jí)最高級(jí)最高級(jí)一般單音節(jié)詞末尾加-er,-est tall great taller greater tallestgreatest以不發(fā)音的e結(jié)尾的單音節(jié)詞,加-r,-st nice large nicer larger nicest largest以一個(gè)輔音字母結(jié)尾的閉音節(jié)單音節(jié)詞，雙寫結(jié)尾的輔音字母，再加-er,-est big hot bigger hotter biggest hottest“輔音字母+y”結(jié)尾的詞,改y為i,再加-er,-est easy busy easier busier easiest busiest規(guī)則變化：其他多音節(jié)詞，在前面

2、加 more ,most 來構(gòu)成比較急和最高級(jí)important,beautiful原級(jí)原級(jí)比較級(jí)比較級(jí)最高級(jí)最高級(jí) good well(健康的) better best bad ill worse worst many much more most little less lest far farther further farthest furthest不規(guī)則變化big tall nice goodlong easyyoung hot bigger biggest taller tallest nicer nicest better best longer longest easier e

3、asiestyounger youngest hotter hottestthe dog is bigger than the mouse.the horse is the biggest of all.the boy is younger than the man.the baby is the youngest of the three.bigbiggerbiggestyoung youngeryoungestjimli leitomli lei is taller than tom.jim is the tallest of all.￥30￥20￥10the yellow coat is

4、 cheaper than the purple one.the brown coat is the cheapest of the three.the dog is bigger than the mousethe boy is younger than the man.li lei is taller than tom.the yellow coat is cheaper than the purple one.a + be + 比較級(jí)比較級(jí) + than +b形容詞比較級(jí)句式的結(jié)構(gòu)：形容詞比較級(jí)句式的結(jié)構(gòu)：the horse is the biggest of all.the baby

5、is the youngest of the three.the brown coat is the cheapest.jim is the tallest in our class.主語主語 + be + the + 最高級(jí)最高級(jí) + of / in.形容詞最高級(jí)句式的結(jié)構(gòu)：形容詞最高級(jí)句式的結(jié)構(gòu)：￥30￥20￥10tomli leijimyoungcheaptalljim is strong.li lei is . tom is .strongerthe strongestthe blue car is nice.the red car the blue car.(紅車比藍(lán)車好看）紅車比藍(lán)

6、車好看）the colour car of all.（彩色車最好看）（彩色車最好看）is nicer thanis the nicest 形容詞比較級(jí)的用法：形容詞比較級(jí)的用法：形容詞比較級(jí)通?？煞譃樵?jí)、比較級(jí)、形容詞比較級(jí)通?？煞譃樵?jí)、比較級(jí)、最高級(jí)三種基本形式。最高級(jí)三種基本形式。 as+ 原級(jí)原級(jí) +as 和和相同相同 比較級(jí)比較級(jí)+than 比比較為較為1. the + 最高級(jí)最高級(jí) +of(in) 在在中最為中最為1.原級(jí)的用法 :(1)句型：a+動(dòng)詞+as+原級(jí) +as+b (程度相同) my uncle is as tall as your father. her skin

7、is as white as snow. this jacket is as cheap as that one. my dog is as old as that one.(2)否定句： a+動(dòng)詞+not+as+形容詞原級(jí)+as+b = a+動(dòng)詞+not+so+形容詞原級(jí)+as+b (表示a、b程度不同，即a不如b那么) he is not as(so) fat as i. the weather in beijing is not as(so) hot as that in wuhan.2.比較級(jí)的用法：（1）句型：a+動(dòng)詞+形容詞比較級(jí)+than+b mary is younger th

8、an i. hangzhou is more beautiful than wuhan. （2）需注意的比較級(jí)用法 在形容詞比較級(jí)前還可以用much、even、still、a little來修飾 he is even slower than before. japan is a little larger than germany.b.比較級(jí)+than any other+單數(shù)名詞（比其他任何一個(gè)別的都） he is better than any other student in his class. this watch is more expensive than any other watch in the shop. c.比較級(jí)+and+比較級(jí) ：越來越 the earth is getting warmer and warmer. china is more and more beautiful. 3.最高級(jí)的用法： 1.句型：a+動(dòng)詞+形容詞最高級(jí)+of（in）表示三者或三者以上的人或事物的比較