1 . If you p ______(保藏) food, you treat it in order to prevent it from decaying so that you can store it for a long time. (根据中英文提示填空)

3 . 根据下列句子语境，从所给选项中选择合适的选项填空，所给选项中有两个多余。

A. preserves       B. ambitious       C. Nevertheless       D. dominate E. precious       F. motives       G. resembled

1. They argued against the notion that man should ______ nature rather than live in harmony with it.
2. We should make good use of every ______minute to study.
3. He has always been ___________ and fiercely competitive.
4. There’s little chance that we will succeed in changing the law. ________, it is important that we try.
5. Salt ______ food from decay.

4 . 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

5 . A proposal was made to the State Council that Beijing hutongs________ (preserve) as part of the effort to retain China’s cultural legacy. (所给词的适当形式填空)

6 . — Hi, what’s the rush?
— I am off to the library right now to ________ a seat for my roommate!

A．preserve

B．order

C．reserve

D．provide

7 . General Motors(GM) plans to _________ its two plants to electric vehicle production by 2035 and another plant in Coahuila will make the new model of Chevrolet Blazer from 2024.

A．converse

B．convert

C．conserve

D．preserve