现在分词与过去分词的区别，主要考主被动

　　現在分词 過去分词

　　表主动 被动 90%，后置定语定/状语

　　表進行 完成 10%，前置定语

　　强调动作 强调状态 不考 [a falling/fallen fruit]

　　eg: the boiling point 沸点， the boiled water 开水, a retired general 一个退休的将军

　　a falling fruit 下落 a fallen fruit 落地

　　77. In the (nineteenth) century the Mohave Indians (lived in) the Northern Hemisphere grew (their) crops on river (bottom lands)

　　答案: B lived inàliving

　　79. (Long) before (the dawn) of (recorded) history, humans celebrated (to harvest) their crops.

　　答案: D to havestàhavesting