該句話主語為：He loved to choose themes. the simple life of the poor是修飾theme的來源.the+形容詞表示一類人,因此,后面的trials and hardships與the poor為所屬關(guān)系,空里應(yīng)該填whose是對的.先行詞在定語從句中做賓語成分，當先行詞提前，則賓語省略，可是whose 后面的從句沒謂語啊把從句拆解為the poor knew trials and hardships of his simple life so well by bitter experience.因此knew為從句里的謂語。原句不是he knew？對不起，正確的解釋應(yīng)該是He know the poor's trials and hardships so well by bitter experience.我同意落紅霏霏的解釋~