1 . It is true that the earth's resources are running out at an ______ (alarm) rate, so we should make good use of them. （所给词的适当形式填空）

2 . The ______________ (alarm) decline of certain wildlife populations signals an urgent need for conservation action. (所给词的适当形式填空)

3 . Many species are disappearing at an ________(alarm) rate, urging us to reverse the damage at once and push forward with biodiversity. (所给词的适当形式填空)

4 . We should take effective measures to protect the rainforests because they are disappearing at an a__________ rate. (根据首字母单词拼写)

5 . 非洲象数量正在以惊人速度减少， 这引发了社会的广泛关注。(alarming; concern) (汉译英)

6 . The rainforests are disappearing ________________ (以惊人的速度). (根据汉语提示补全句子)

8 . 词性转换
1. ________ adj.不合法的；非法的→________ adv.不合法地；非法地
2. ________ vt.& vi.打猎；搜寻；追捕→________ n.猎人→________ v./n.打猎；寻找
3. ________ adv.立刻→________ adj.立即的
4. ________ adj.惊人的；使人惊恐的→________ vt.使惊恐；使害怕；使担心 n.恐慌；警报；警报器
5. ________ n.速度；(比)率 vt.划分等级→________ n.等级；级别
6. ________ adj.已灭绝的→________ n.灭绝
7. ________ adj.知道；发觉；有……意识的→________ n.知道；意识
8. ________ vt.涉及；让……担忧→________ adj.担心的；关切的
9. ________ vi.适应vt.使适应；使适合→________ n.适应；改编本

9 . 词性转换
1. immediate adj.立即的；立刻的→ _______ adv.立刻 conj.一……就……
2. alarm vt.使惊恐；使害怕；使担心 n．恐慌；警报；警报器→ _______ adj.惊人的；使人惊恐的→ _______ adj.感到惊恐的
3. extinct adj.已灭绝的→ _______ n．灭绝
4. aware adj.有……意识的→ _______ n．意识
5. concern vt.涉及；让……担忧→ _______ adj.担心的；关切的→ _______ prep.关于
6. adapt vi.适应 vt.使适应；使适合→ _______ adj.适应性强的，能适应的→ _______ n.适应；改编
7. press vt.按；压→ _______ n．压力
8. reserve n.（动植物）保护区；储藏（量） vt.预订；预留；保留→ _______ n.预订；预留
9. observe vt.观察（到）；注视；遵守→ _______ n.观察；注视；遵守
10. beauty n.美；美人；美好的东西→ _______ adj.美丽的→ _______ vt.使美丽，美化

10 . When he walked into the old building, he saw an ______________ (alarm) scene. (所给词的适当形式填空)