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1、2021/8/612021/8/621、无比较时，只能用原级（原形）、无比较时，只能用原级（原形） 例如：She is tall . Our school is beautiful. Tom runs fast. I play the piano well.2021/8/63修饰原级的词修饰原级的词 very, quite, pretty, really, too, so, enough等等 如：如：I am pretty healthy. English is so difficult. Mary sings very well. we work really hard.2021/8/642
2、2021/8/65be as + adj.（形容词）（形容词） + as的用法的用法as . as 意为意为“和和一样一样”，表示同，表示同级的比较。其基本结构为：级的比较。其基本结构为：as + adj. + as1. She is as old as I am.2. Amy is as tall as Peter. 3. This film is as interesting as that one. 注意：注意：asas 中间用形容词的原级中间用形容词的原级2021/8/66be as + adj. + as的否定形式为：的否定形式为：be not as + adj. + as “前者不
3、如后者前者不如后者”This dictionary is not as useful as that one. Amy is not as tall as Peter. be as + adj.（形容词）（形容词） + as 的用法的用法These apples are not as good as those ones.2021/8/67动词动词 as + adV.（副词）（副词） + as的用法的用法as . as 意为意为“和和一样一样”，表示同，表示同级的比较。中间加一个副词原级。级的比较。中间加一个副词原级。 I run as fast as Peter （does） She sin
4、gs as well as I （do）.3. Tom swims as slowly as Jim （does）. 注意：注意：asas 中间用副词的原级中间用副词的原级2021/8/68 as + adv. + as的否定形式为：的否定形式为： does/do not 动词动词 as + adv. + as “前者不如后者前者不如后者”动词动词 as + adv.（副词）（副词） + as 的用法的用法 I dont run as fast as Peter （does） She doesnt sing as well as I （do）.3. Tom doesnt swim as slowly as Jim （does）. 注意：在否定句中注意：在否定句中第一个第一个as 可以改为可以改为so。
经典：形容词副词原级幻灯片
