7 . Directions:Write down the derivatives of the given words as required.
1. i______ coming or existing between two events, dates, objects, etc
2. a______ of or belonging to or inherited from an ancestor
3. d______ the fact that a particular person or thing is more powerful, successful, or important than other people or things
4. b______ a real or imagined line that marks the limits or edges of something and separates it from other things or places; a dividing line
5. c______ a sudden failure of something, such as an institution, a business or a course of action
6. d______ a range of many people or things that are very different from each other

8 . 词性转换
1. participate vi.参与，参加→________ n. 参加，参与→________ n. 参与者
2. compete vi.参加比赛;竞争→________ n. 竞争;比赛→________ adj.竞争的;有竞争性的→________ n. 竞争者
3. racial adj.种族的;种族间的→________ n. 种族;比赛
4. diverse adj.多种多样的;不同的→________ n. 多样性;多种多样
5. motivate vt.激励，激发;成为……的动机，是……的原因→________ n. 动机
6. demonstrate vt.表现，表露;证实，证明;示范，演示 vi.游行示威→________ n. 表现，表达;证实，证明;示范，演示;游行示威
7. applaud vt.& vi.称赞，赞许;鼓掌→________ n. 鼓掌
8. election n. 选举，推选;当选→________ vt.选择;选举某人
9. faith n. 信任;信心;信念;宗教信仰→________ adj.忠实的;守信的→________ adv.忠实地
10. ambition n. 追求的目标，夙愿;雄心，野心，壮志→________ adj.有雄心的，有野心的