中考英語難點(diǎn)語法詳解:主謂一致

　　謂語受主語支配，須和主語在人稱和數(shù)上保持一致，這叫做主謂一致。主謂一致一般遵循三條原則：語法一致原則，意義一致原則和就近一致原則。

　　1. 語法一致的原則

　�。�1）以單數(shù)名詞或代詞，動(dòng)詞不定式短語作主語時(shí)，謂語動(dòng)詞要用單數(shù)；主語為復(fù)數(shù)時(shí)，謂語用復(fù)數(shù)，例如：

　　He goes to school early every morning.

　　The children are playing outside.

　　To work hard is necessary for a student.

　　（2）由and或both……and連接的并列成分作主語時(shí)，謂語動(dòng)詞用復(fù)數(shù)。例如：

　　Both he and I are right.

　　Mr Black and Mrs Black have a son called Tom.

　　但并列主語如果指的是同一人，同一事物或同一概念，謂語動(dòng)詞用單數(shù)。例如：

　　His teacher and friend is a beautiful girl.

　　The poet and writer has come.

　�。�3）由and連接的并列單數(shù)主語之前如果分別由each, every修飾時(shí)，其謂語動(dòng)詞要用單數(shù)形式。例如：

　　In our country every boy and every girl has the right to receive education.

　　Each man and each woman is asked to help.

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