even if 有转折的意思,但是后面一般接句子.
而even 本身就有“即使”的意思,when只是连接后面的句子.原句应该是even when he was exhausted,the young actor continued to perform energetically.
when做时间状语时,当主句的主语和从句的主语一致时,可以把从句的主语和谓语动词省略.即he和was.