old/ nice/ interesting etc. (adjectives)修饰名词



quickly/ badly/ suddenly etc. (adverbs) 修饰动词
形容词加上ly变成副词(附录五)



既是形容词又是副词的词


形容词的比较级:old/ older, expensive/ more expensive

单音节在词尾后加er,多音节在前面加more



不规则变形


older than... 进行比较




not as ... as (前者不比后者怎么怎么样)





the same as (a 与 b 比起来完全一样)

the oldest 最高级




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