3 . 词性转换
1. ________n. 精力；能量；活力 →________ adj.充满活力的；精力充沛的
2. ________ v. 表演；执行→________ n. 演出；执行→________ n. 表演者；演出者
3. ________ n. 起源；由来；起因→________ adj.原始的；最初的；新颖的 n. 原作；原稿→________adv. 原来；起初
4. ________v.组成，写作，使平静→________n.成分；(音乐、艺术、诗歌的)作品；作文→________n.组成部分，成分，部件
5. ________ adj. 有能力的；有才能的→________ adj. 没有能力(做某事)→________ n. [C, U]能力；才能
6. ________ n. (痛苦或忧虑的)减轻或解除→________ vt.使减轻；缓解
7. ________ n. 目标；目的 vi.& vt.瞄准；(向某方向)努力→________ adj.没有目标的；无目的的→________ adv.漫无目的地；无目标地
8. ________ vt.雇用；利用→________ n. 雇主→________ n. 雇员→________ n. 雇用；就业；利用→________ n. 失业；失业率→________   adj. 失业的；待业的
9. ________ vt.& vi.配备；装备→________ n. 设备；装备(不可数)
10. ________ n. 天才；特殊能力；才干→________ adj.有才气的；有才能的
11. ________ vt.假定；设想→________ n. 假定；设想→________ conj. 假定；假设
12. ________ n. 满意；满足；令人满意的事物→________ vt.使满足；使满意→________&________ adj.令人满意的→________ adj.感到满意的；满足的
13. ________ adj.不同的→________ n. 变化；多样性→________ vt.& vi.使多样化
14. ________ vi.作出反应；回应→________ n. 反应，感应
15. ________ adj. 普通的；平凡的→________ adv. 通常地；一般地→________ adj. 不平常的；非凡的

6 . A symphony orchestra is __________ of a variety of brass, woodwind, percussion and stringed instruments.

A．consisted

B．compared

C．composed

D．concluded

7 . To ______ his skills, Stephen Curry practiced day in and day out.

A．suspect

B．sharpen

C．assign

D．compose

9 . He ______ that the birds had evolved from a common ancestor.

A．linked

B．composed

C．suspected

D．assigned

10 . At last, the manager ________ that every member in the company deserves a bonus for their efforts.

A．concluded

B．impressed

C．composed

D．informed