1 . 词性转换
1. volunteer n．志愿者；v.自愿做，义务做→________ adj.志愿的；自愿的
2. prefer vt.较喜欢；选择某事物(而不选择其他事物)→________ n．偏爱；优先权；偏爱的事物/人
3. move vt.& vi.移动；搬家 vt.使感动→________ n．动作；运动；活动
4. actual adj.实际的；真实的→________ adv.事实上；的确
5. fluent adj.(尤指外语)流利的；熟练的→________ adv.流利地→fluency n．流利；流畅
6. recommend vt.建议；推荐；介绍→________ n．建议；推荐
7. responsible adj.负责的；有责任的→________ adv.负责地；有责任地→________ n．责任；义务
8. edit vt.编辑；剪辑→________ n．主编；编辑；编者→________ n．版本；版次
9. survive vi.& vt.幸存；比……活得长→________ n．生存；幸存；幸存事物→________ n．幸存者
10. addict n．对……入迷的人；吸毒成瘾的人→________ adj.有瘾的；上瘾的；入迷的→________ n．着迷；上瘾
11. advance n．前进；发展 vi.前进；发展 vt.发展；促进→________ adj.高级的；高等的；先进的

2 . Membership in a group plays an important function in ensuring their safety and improving their chances of ________________(survive) from attacks by predators. （所给词的适当形式填空）

3 . 地球正在不断变暖，毫无疑问这对很多动物的生存也是一种威胁。
The earth is getting warmer, and _________.

4 . 这些严重的自然灾害会影响到人类和其他生物的生存，甚至引起灭绝。
These ________ of human beings and other organisms, and even ________.

6 . 从框中选择合适的单词或词组，用其正确形式填空，并将答案书写在答题卡相应位置。

base on     on the edge of     run out     breathe in     in turn     survive     the moment     attempt turn one’s back on     fight for     take shelter from     have ... in mind     apart from     admire

1. They were done fighting for others now, they ________ their freedom.
2. “Reward? What did you ________?” the boss shouted angrily to him.
3. Which is more difficult, ________ or breathing out?
4. The film ________ the real story of the hero.
5. ________ singing a song, he told a joke.
6. He ________ to escape but failed.
7. Human beings are infinitely flexible and able to adjust when ________ depends on it.
8. The boy’s heroic behavior is ________.
9. Time was ________, and pressure was mounting.
10. The frog ________ the storm in a nearby cave.