is being done为被动语态。
being：
n. 存在; 生存; 生物; 思想感情; 身心。
are的现在分词; be的现在分词。
done：adj. 完毕; 了结; 结束; 煮熟; 熟了; 合乎礼仪; 合乎规矩; 得体。
扩展资料
例句：
She says research is being done on an urgent basis.
她表示研究正在紧张的进行中。
Much should and is being done to help China succeed.
帮助中国在这方面取得成功还需要做很多而现在确实也已经做了大量的工作。
What kind of testing is being done to ensure safety?
为确保安全开展了何种检测？
The work is being done.
这项工作正在被做。
The homework is being done by the students now.
家庭作业现在正在被学生做。
The rate at which work is being done by some force is often of interest.
力在单位时间内所做的功是我们经常感兴趣的问题。
