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八、被动语态 (二)被动语态的用法 用法 例句 (1)不知道或没必要说明动作的执行者。 Such books are written for children. Printing was introduced into Europe from China. (2)动作的承受者是谈话的中心，或者既关心动作的承受者，又关心动作的执行者。 This song was composed(作曲) by a student. She is liked by everybody. (3)出于修辞的需要。 He went to the country and was warmly welcomed. (此句使用同一主语，以求简练) 结构 例句 附注 (1)主语＋被动动词 Rice is grown in the south. →People grow rice in the south. (2)主语＋被动动词＋保留宾语(或介词短语) I was given a book (by him). A book was given (to) me (by him). →He gave me a book. 带双宾语的句子变被动语态时，将其中一个宾语变成被动句的主语，另一个宾语置于原来的位置上，称之为“保留宾语”。 （三）被动语态的句型结构 结构 例句 附注 (3)主语＋被动动词＋主补 He will be made our monitor. →We will make him our monitor. He was seen to come this morning. →I saw him come this morning. 主动句中的宾语补足语变成被动句后被称作主语补足语； 在主动句中，不定式在有些动词后作宾补要省to；而变成被动式后，这类不定式随之变成了主补，就要加to。 结构 例句 附注 (4)主语＋情态动词＋被动动词 He should be praised by the teacher. | 
