5 . 词性转换
1. firmly (adv.)     ________ (adj.)
2. anticipation   (n.)   ________   (v.)
3. implant   (v.)       ________   (n.)
4. realization   (n.)     ________ (adj.)
5. adjustment   (n.)   ________     (v.)
6. optimism   (n.)   ________   (adj.)
7. depression (n.)     ________   (adj.)
8. thorough   (adj.)     ________ (adv.)
9. betray   (v.) ________   (n.)
10. symbolize (v.)   ________ (n.)

6 . 根据语境，选择下框中的单词或短语选项替换句中划线部分的单词，使意思一致。

A. consisted of;        B. leisure;                     C. proof; D. transform;        E. tackle;                  F. exceptional;        G. depressed;

1. Researchers claim to have found the evidence that getting a regular eight- hour sleep every night makes a real difference to our health. ______
2. I don’t know how to handle the situation , but an idea suddenly struck me that I could turn to my friend for help. ______
3. What was it that made her change form an average woman into an elegant lady? ______
4. It disappointed him that nobody seemed to care. ______
5. At the age of five, he showed extraordinary talent as a musician. ______
6. My grandpa’s breakfast mainly included wholegrain biscuits and a glass of milk. ______
7. Students are encouraged to try a variety of free-time activities to decrease the intense stress from studying. ______

9 . 词性转换
1. apply vt.涂；敷；搽；运用 vi.申请；请求；有效→________n. 申请→________n. 申请人
2. expose vt.使接触；使体验；显露；使暴露于(险境)→________n. 接触；体验；暴露；揭露
3. surround v. 包围；环绕→________adj.周围的；附近的→________n. [pl.]环境；周围的事物
4. depress vt.使沮丧；使忧愁→________adj.沮丧的；意志消沉的
5. strong adj.强壮的；结实的→________n. 力气；力量；强项→________vi.& vt.加强；增强；巩固
6. competent adj.有能力的；称职的→________n. 能力；胜任；本领
7. cooperate vi.合作；协作；配合→________n. 合作
8. engage vi.参加；参与(活动) vt.吸引(注意力、兴趣)；(使)参加；吸引；雇用→________adj.忙于；从事于；已订婚的→________n. 订婚；约定