[观察例句]
1．And just look at how her dress is being folded by the wind.
2．A new cinema is being built here and they hope to finish it next month.
3．I am being pushed around quite a bit，in fact.
4．Now the machine is being tasted.
[归纳用法]
一、现在进行时态的被动语态的构成：
be(is/am/are)＋being＋done
