3 . 词性转换
1. occasion n.场合，时刻→________ adj.偶尔的，临时的
2. edit v.编辑→________ n.（报纸、杂志的）主编，编辑
3. lose v.失去，丧失→________ n.失去，丧失
4. adult n.成人，成年人→________ n.成年
5. retire v.（使）退休→________ adj.退休的
6. exist v.存在，实际上有→________ n.存在，实有
7. globe n.地球，世界→________ adj.全球的，全世界的
8. nation n.国家；民族→________ n.国籍；民族

8 . 根据课文内容选词填空。

opportunity       beauty       harmony       original       loss disappearing       global       inspired       significant       ruins

1. As China plays a greater role in ________ affairs, an increasing number of international students are beginning to appreciate China's culture and history.
2. One of the most deadly earthquakes of the 20th century began. In less than one minute, a large city lay in ________.
3. A committee was established to limit damage to the Egyptian buildings and prevent the ________ of cultural relics.
4. Watching them move slowly across the green grass, I'm struck by their ________.
5. Over the next 10 years, Whitacre's ________ compositions began to become quite popular among choirs and singers.
6. She was so ________ by the people she met online that she decided to start an IT club to teach older people how to use computers and the Internet.
7. Perhaps the best example is shown by UNESCO, which runs a programme that prevents world cultural heritage sites around the world from ________.
8. Only when we learn to exist in ________ with nature can we stop being a threat to wildlife and to our planet.
9. Imagine having the ________ to sing together with hundreds of other people while you are at home alone.
10. Customs play a ________ role in festivals, but sometimes they change over time.