被
1.被动语态的构成与种类2.被动语态应用的场合3.使用被动语态时应注意的几个问题4.不能用
1.被动语态的构成与种类:当句子的主语是动作的承担者时，谓语用被动语态。被动语态由助动词be+过去分词构成，时态通过be表现出来。1)一般现在时:This song is often sung by the children.2)一般过去时:The article was written by Mary.3)一般将来时:The sports meet will not be held next week .4)现在进行时:The building is being built.5)过去进行时:The new tool was be
2.被动语态应用的场合:1)为了强调动作的执行者而用by修饰时. The vase was broken by the boy who lives next door.2)不知道谁是动作的执行者,或没必要指明谁是动作的执行者 时. The book was first published in 1983. Printing was introduced into E ...