1 . 词性转换
1. subsequent adj. 随后的→________________adv. 后来，随后
2. depart vi. 离开，出发→________________n.离开
3. compare v.比较→________________n.比较
4. interfere v. 干涉，介入→________________n.干预，介入
5. secure adj. 稳固的；安全的；可靠的→________________n. 安全；保证；担保
6. biology n.生物学，生理→________________adj. 生物的，与生物有关的→________________n. 生物学家
7. danger n.危险→________________adj. 危险的→________________v.使遭危险；危及；危害→________________adj. 濒临灭绝的，濒危的

2 . 他们的生命正在遭受威胁，专家建议立即采取有效的措施。(进行时的被动语态)
Their lives________so experts recommend that________ immediately.

3 . 词性转换
1. criterion n. 标准，准则→________标准，准则
2. rare adj. 稀有的，罕见的→________ adv. 难得地；罕有地
3. biology n. 生物；生物学→________adj. 生物的；与生物有关的→________n. 生物学家
4. apparent adj. 显然的；表面上的→________ adv. 据说；看来，似乎
5. danger n. 危险；危险物→ ________v. 危及；使遭到危险→________ adj. 濒危的→________ adj. 危险的
6. invade v. 侵略；侵袭，涌入→________ n. 侵犯，入侵；涌入
7. exist v. 存在；生存→________ v. 共存；（和平）共处→________ n. 共存；（和平）共处
8. secure adj.稳固的，可靠的；安全的→________ n. 安全，安全性；保证

4 . 词性转换
1. illegal adj. 非法的；不合法的 → ____________ adv. 不合法地；非法地→____________ adv. 合法地
2. beauty n. 美；美人；美好的东西→____________ vt. 使美丽→____________ adj. 美的，美好的
3. extinct adj. 已灭绝的→____________ n. 灭绝→____________ adj. 使消灭的
4. danger n. 危险；风险→____________ vt. 使遭受危险；危害→____________ adj. 危险的
5. concern v. 涉及；让……担忧→____________ adj. 担心的；关切的→____________ prep. 关于；涉及
6. intend vi. & vt. 打算；计划；想要→____________ adj. 打算的；计划的→____________ n. 意图，目的，打算
7. adapt vi. 适应vt. 使适应；使适合→____________ n. 改编本，改写本；适应→____________ adj. 有适应能力的
8. threat n. 威胁→____________ vt. 威胁；危及→____________ adj. 受到威胁的
9. harmony n. 和谐；融洽→ ____________ adj. 和谐的
10. exist vi. 存在；生存→ ____________ n. 存在

5 . Directions: After reading the passage below, fill in each blank with a proper word given in the box. Each word can only be used once. Note that there is one word more than you need.

A. dignity B. favored C. endanger D. striking E. peered F. distinctive G. adapted H. wonder I. commitment J. expense K. share

1. Tan Dun ______ music from the original Kun opera and added his own work to these traditional pieces.
2. For a long time, my mother had not understood my ______ to the struggle.
3. It’s difficult to preserve your ______ when you have no job and no home.
4. In South Africa, it is hard for a man to ignore the needs of the people, even at the ______ of his own family.
5. In the 1800s, Beijing opera slowly replaced Kun opera as the ______ form of opera.
6. Families worry that sending children away to study in higher education could ______ the Yupik language and culture.
7. When one doesn’t see one’s family for many years at a time, the transformation can be ______.
8. The ______ features of Kun opera are spoken story-telling, singing and dancing, and each character has their own particular style of movement on stage.
9. When a whale is killed, the houses and school empty as everyone races to the beach to take a ______ of the meat.
10. They ______ out the window fearfully at the ivy vine, and then looked at each other for a moment without speaking.

6 . Should a driverless car serve to avoid pedestrians if that means hitting other vehicles or ________its occupants?

A．spoiling

B．endangering

C．blanketing

D．seizing