ad. 安全地, 确实地

danger/dangerous/emergency/safety/safe/safely/save/rescue/secure/security
记忆：
1. danger [ 5deindVE ] n. 危险, 危险物 Look out! There is danger ahead.小心，前面有危险！
2. dangerous [ 5deindVrEs] adj. 危险的 The tiger in danger is still a dangerous animal.处于危险境地的老虎仍是危险的动物。
3. emergency [ i5mE:dVnsi] emerg-ency emerge,出现；emergency, 突然出现 n. 紧急情况, 突然事件 The special police forces keep alert all the time in case of any emergency.特种警察部队一直保持着警惕，以防任何紧急情况的出现。
4. emerge [ i5mE:dV] vi. 显现, 浮现, (由某种状态)脱出, (事实)显现出来 The truth will emerge sooner or later.真相尽早出浮出水面。
5. safe [ seif ] adj. 安全的 n. 保险箱 Precautious attacking can’t keep the county really safe.先发制人并不能真正保证国家的安全。
6. safely [`seIflI] adv. 安全地 The ship landed safely in the end.船最后平安靠岸了。
7. safety [ 5seifti] n. 安全，安全地带 He hurried to take the boy to safety.他急忙把孩子带到安全地带。
8. save [ seiv] vt. 解救, 保存, 节省, 储蓄 vi. 挽救, 节省 prep. 除...之外 How can I thank you enough for saving my life?你救了我的命，我真不知该怎样感谢你。 格言：Saving is getting. 节省就是获得。
9. rescue [ 5reskju: ] vt. & n. 援救, 营救 The firemen have tried their best to rescue the man trapped 消防队员已尽了力去营救受困的那个人。
10. secure [ si5kjuE ] se-cure, 治好的， adj. 安全的, 可靠的 You may be relaxed now. The secret is absolutely secure.你可以放松点。那个秘密绝对安全。
11. security [ si5kjuEriti ] n.安全 National security is the first matter for any government.国家安全是任何政府的首要问题。
另类阅读：
The tiger is a dangerous animal, but it’s in danger now. Yesterday they rescued a tiger and took it to safety where they were sure it was safe.