1 . 词性转换
1. eruption n．爆发→________ v．(火山)爆发，喷发
2. immediate adj.立刻的→________ adv.即刻，马上
3. occurrence n．发生→________ v．发生
4. announce v．宣告→________ n．通告，公告
5. disastrous adj. 灾难性的→________ n. 灾难
6. land(国土；陆地；地面)+slide(滑动)→________ n.山崩
7. forecaster n. 预报员→________ v.预报，预测
8. rescuer n. 救助者→________ vt.营救；援救

2 . 预计他们将在今天晚些时候宣布通告。
They are expected to ________ later on today.

7 . Choose the correct options.
1. You need to listen to the announcement/arrangement to find out who is playing next.
2. Please fill in the regulation/application form if you want to sign up/stand up for the run.
3. Proudly/Amazingly, my cousin was able to recover from his illness and play in today’s basketball game.
4. Please turn off/show up your flash when taking photos.
5. He hurt/quit the game after an argument with one of his teammates.
6. The school sports meet held every spring has become an annual/extra event.
7. You have to wear a helmet when riding in case/so that you fall off the bike.
8. Within/Without half an hour after our arrival at the gym, Caroline was starting to complain.