Unmarked Professional Excavated Pot Provenance Dated Archaeologist T

意群训练： Who would wan t an unmarked po t when anothe r was available whose provenanc e was known ，and that was date d stratigraphically by th e professional archaeologis t who excavated it ?

标志： Who would want an unmarked pot /when another was available (whose provenance was known,) and ［that was dated /stratigraphically by the professional archaeologist (who excavated it)/］/?

译文： /当 （出处已知、）并［已经/被（挖掘了它的）职业考古学家通过地层分析法/确定了其年代 的］别的陶罐 能够 被得到 的时候/, 谁 会去想要 那些没有标记的瓶瓶罐罐呢 ？

解释： 本句中从when开始的状语从句的结构稍有些复杂。其中的主语another的修饰成分太长， 被倒装到谓语和宾语的后面。其实我们一旦习惯了这种倒装就会觉得它很舒服， 否则如果不倒装， 如下面的样子， 句子会更难懂：

Who would want an unmarked pot /when another (whose provenance was known,) and ［that was dated /stratigraphically by the professional archaeologist (who excavated it) /］/was available ?

这个句子显得头重脚轻， 而且状语从句中的主语过长， 其中还包含着两重修饰成分， 难免读到最后的was available ？的时候不知所云。