语法上一致 (1)以单数名词或代词.动词不定式短语.动名词短语或从句作主语时.谓语动词要用单数.主语为复数时.谓语用复数.如. To work hard is necessary for a student. (2)用and或both--and连接的并列主语.谓语动词用复数. 如. Both he and I are right. 但并列主语如果指的是同一人.同一事物或同一概念.谓语动词用单数. 如, His teacher and friend is a beautiful girl. (3)主语是单数时.尽管后面跟有as well as, but ,except, besides, with ,along with, together with, like等.谓语动词仍用单数. 如.The teacher as well as his students is excited. (4)某些不定代词.如做主语.谓语动词要用单数.如:Everyone has a book. (5)一些只有复数形式的名词.如people, cattle, clothes等作主语时.谓语动词要用复数. 如.A lot of people are dancing outside. 【
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