as, though 引导的倒装句,Old as/though my father is, he keeps up with his English study.Child as he is, he knows something of electricity.Tired as he was, he continued to work.Young as she was, she was already director of a factory. Hard as he tried, he never seemed able to do the work satisfactorily. Try as I might, I couldnt lift the stone.,as / though引导的让步从句必须将表语、状语或动词原形提前:,形容词 名词(前无冠词） 分词 副词 动词原形+ as / though + 主语+ 情态动词,+ as / though + 主语+be,+ as / though + 主语+谓语动词,
