比较级练习介绍.doc

1.?形容词比较级的构成。 ①单音节和少数双音节形容词、副词的规则变化情况： a.?在原级的词尾加-er变为比较级 eg.?short(原级)---shorter(比较级) ???long(原级)---longer(比较级) b.?如原级以e结尾，则比较级只加-r。 eg.???large---larger??nice---nicer? c.?如原级以“辅音字母+y”结尾，要将y改为i，再加-er。 eg.???busy---busier????easy---easier d.?原级以重读闭音节结尾，而且末尾只有一个辅音字母(不含字母组合er等)，要双写这个辅音字母，再加-er。 eg.????fat---fatter???big---bigger ②大多数双音节和多音节形容词、副词的规则变化，是在原级前加more变成比较级，加most变成最高级。 eg.???beautiful(原级)---more beautiful(比较级)??? interesting(原级)---more interesting(比较级) ③有少数形容词,副词的比较级和最高级是不规则的。这些单词的变法需要大家识记。 eg. good---better???bad---worse???mamy/much---more little---less far---farther/further 2.?形容词比较级的用法和相关句型。 ①表示两者“相等”用“as+形容词原级+as+比较对象”。 eg.??He is as tall as his mother． ????English is as interesting as math. ②表示“不如”或“不相等”用“not +as／so+形容词原级+as+比较对象”。 eg.??It is not so／as cold today as yesterday． ?????Jack is not so/as tall as Tom. ③表示倍数，如“一半／两倍/3倍／4倍／……”等用“half／twice／three／four／…times +as…as…”结构。 eg.???I study twice as hard as you． ??????This room is three times as large as that one. ④用“形容词比较级+than引导的从句”进行两者的比较。 eg.???The earth is bigger than the moon． ??????This dress is more expensive than that one. ⑤强调比较级超出比较程度时，形容词的比较级前可用much，far，a lot，still，no，a little，even，any,等状语来修饰。 eg.???My brother is much older than I. ???? This bike is far better than that one. ⑥由and连接同一个形容词的两个比较级，可以表示“越来越……”。 eg.???I’m getting fatter and fatter． ????I think English is becoming more and more difficult. ⑦用“the+比较级…+the+比较级…”，表示“越……就越……”。 eg.??The more you read，the more knowledge you will get． ????The less junk food you eat, the healthier you feel. ? 一写出下列形容词的比较级 small????? ???2.high?? ??????3.nice??? ????? 4. wide???? ????5. heavy ________________ 6.early????? ?? 7.hot???? ???? 8.big????? ?? ? 9.low???? ????? 10. slowly????? ??11. expensive??? ????12.little _______________ 13.difficult??? ???14. many/ much??? ???15.old ___________?? 16.old??? ????17.far??? ?