2 . 词性转换
1. try v.尝试→________ n．试验；试用
2. atomically adv.利用原子能地→________ adj.原子的，与原子有关的
3. propulsive adj.推进的；有推进力的→ ________ n.推进；推进力
4. shunning n.回避→ ________ v.(故意)避开，躲开
5. harshly adv.严厉地；刺耳地→________ adj.(环境)恶劣的，艰苦的
6. prosperously adv.繁荣地；幸运地→ ________ adj.繁荣的，富足的
7. preservation n.保护，维护→________ v.保护，维护
8. combine v.(使)结合，组合→________ n.结合体，联合体；结合，联合

3 . 选词填空

acclaim, atom, craft, harsh, prosper, shun

1. Despite the pandemic in China, businesses across the country are ________ with economic situation becoming ________.
2. Infected by Aids, she lives alone,   ________ by society.
3. The carrier is powered by ________ energy released by splitting ________ .
4. Many kinds of traditional Chinese ________ industries are preserved by many ________ with their skilled ________.
5. Yuan Longping is ________as Father of Hybrid Rice.
6. ________climates or conditions are very difficult to people, animals, and plants to live in.