The glass is broken.
玻璃杯碎了。(系表结构)
The glass was broken by the boy.
玻璃杯被那男孩打碎了。(被动语态)
2.如果句中有地点、频率或时间状语时,一般为被动语态。如:
The magazine is published in Shanghai.
这家杂志出版于上海。(被动语态)
The door is locked.
门锁着。(系表结构)
The door has already/just been locked.
门已经/刚刚被锁上。(被动语态)
The shop is opened.
这家商店开门了。(系表结构)
The shop is opened at 8 a.m. everyday.
这家商店每天上午八点开门。(被动语态)
3.被动语态除用于一般时态和完成时态外,还可以用于其他各种时态,而系表结构中的系动词be只有一般时态和完成时态。
所以下列句子都是被动语态:
The machine is being repaired.
机器正在修。
A new school will be built here.
这里将要建一所新学校。