摘要：不定冠词用在so+形容词之后. 例如:She is as clever a girl as you can wish to meet. It’s too difficult a book for us to read. 注意:以元音音素开头的名词前加不定冠词时用“an .例如:an apple. 即使单词拼写以辅音字母开头.但该词的读音是元音音素开头.加不定冠词时也要用“an .例如:an hour.an honest boy,反之.拼写以元音字母开头.但读音是辅音.加不定冠词时要用“a .例如:a university.

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