2、大多数形容词既可作定语又可作表语,但有少数形容词只能作表语。 This is a red dress. The dress is red. alike, afraid, alone, asleep, awake, aware, alive, ashamed, unable, content. 二、副词在句子中的作用 副词在句子中主要作状语,可以修饰动词、形容词、副词,有时修饰整个句子。 Unfortunately, he wasn't at home when I came. (修饰整个句子) Luckily, she wasn't injured in the accident.(修饰整个句子) Her pronunciation is very good.(修饰形容词) I have been extremely busy these days.(修饰形容词) I can hardly agree with you.(修饰动词) He works terribly (quite) hard. (修饰副词) 三、形容词和副词比较级和最高级的构成 1.单音节词和少数双音节词(如以y结尾的)在词尾加-er , -est. 如:small, smaller, smallest; great, greater, greatest; clever, cleverer, cleverest; quiet, quieter, quietest ; common, commoner, commonest; narrow, narrower, narrowest. 2、以e结尾的词加-r , -st . 如:larger, larger , largest ; simple, simpler , simplest ; polite, politer , politest; brave, braver, bravest; fine, finer, finest. 3、以"辅音字母+y"结尾的词,变y为i 再加-er , -est . 如:busy,busier, busiest; heavy,heavier, heaviest; happy,happier, happiest. 4、以一个辅音字母结尾的词,双写该辅音字母,再加-er, -est .(一个辅音字母结尾;重读闭音节) 如:big,bigger, biggest; thin,thinner, thinnest; hot,hotter, hottest. 双音节词,多音节词比较级和最高级在词前加more, most. 如:difficult, more difficult, most difficult, interesting, more interesting, most interesting; useful, more useful, most useful. 特殊的比较级和最高级

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