Summary: 现在进行时的被动语态

e.g. 1. A new library is being built now. 2. Some animals are not being protected well enough. 3. Is the bridge being repaired now?

1. 构成：

am/is/are (not) + being + V-过去分词

2. 意义：

…正在被做.

一座新图书馆正在被修建。

有些动物没有受到很好的保护。

现在那座桥在修吗？

is being built

are not being

Is

being repaired

protected