1 . 词性转换
1. ________ adj.拥挤的，挤满人的→ ________ n. 人群，群众 v.拥挤，涌入
2. ________ n.风景，景色→ ________ n.园林学家，庭园设计师
3. ________ adj.活着的，活的→ ________ v.活着，居住 adj.活的，直播的，现场的adv.在现场直播→ ________ adj.活泼的，活跃的
4. ________ adj.火山的;由火山作用引起的→ ________ n.火山
5. ________ n.爆发，喷发→ ________ vt.爆发，喷发→ ________ adj.火山爆发的，火山喷发的
6. ________ vt.使震惊;使难以置信 n.震惊，休克→ ________ adj.吃惊的，震惊的→ ________ adj.使人震惊的

4 . An active________(/vɒlˈkeɪnəʊ/) may ________(/ɪˈrʌpt/) at any time, so the travellers must be careful.(根据英文提示单词拼写)

5 . Two of the largest active v ________ are erupting at the same time in Hawaii, US, which according to the experts is rarely seen. (根据首字母单词拼写)

9 . There are v________ on every continent, even Antarctic, some of which are considered potentially active and dangerous around the world today. (根据首字母单词拼写)