例17　When the work is well done, a rule of emergency operation is established where time lost due to injuries is kept at a minimum.

【结构分析】When the work is well done是个时间状语从句，主干的主语是a rule of emergency operation，动词是个被动语态is established，后面加上定语从句where time lost due to injuries is kept at a minimum，修饰前面的主语a rule of emergency operation，动词把主语和定语从句分隔开来。

【亮点回放】此句话的亮点在于分隔结构的超级使用，主语和定语从句被动词分隔开来，动词的插入导致名词和定语从句或同位语从句的分隔。

【核心词汇】

well done　完成

a rule of emergency operation　紧急救援制度

established　建立

time lost　时间消耗

due to injuries　由于受伤

kept at a minimum　控制到最低限度

【参考译文】当工作很好完成之后，一种紧急救援制度要建立起来，在这种制度下，由于受伤所导致的时间消耗被控制到最少。