1 . 词性转换
1. original [adj.] 起初的；独创的；原作的→ ________ [adv.] 原来，起初→________ [n.] 起源
2. medium [n.] 传播信息的媒介，方法;手段，工具 [adj.] 中等的，中号的→________ (复数)
3. horrible [adj.] 令人震惊的；可恶的，极坏的→________ [adv.] 可怕地
4. recover [vi.] 恢复健康；恢复常态 [vt.] 全额收回；寻回；重新获得；恢复，重新控制→________ [n.] 恢复；重获
5. loss [n.] 失去，丧失；亏损；去世；损失→________ [vt.] & [vi.] 丢失；失去；损失→________ [adj.] 迷路的；失去的；丧失的
6. judge [vt.] & [vi.] 评价；判断，认为 [n.] 法官；裁判员→________ [n.] 判断
7. apologize [vi.] 道歉，谢罪→________ [n.] 道歉，谢罪
8. behavior [n.] 行为，举止，态度→________ [vi.] 表现，举止端正 [vt.] 使守规矩
9. ignore [vt.]忽视，对……不予理会→________ [adj.] 无知的→________ [n.] 无知，愚昧
10. explode [vi.] (愤怒等感情)爆发，迸发；爆炸 [vt.] 使爆炸→________ [n.] 爆炸；激增

2 . 选词填空

1. __________ join a club to improve your social skills?
2. If you __________ online games, it’s really hard to quit.
3. For some adults, a low salary __________ enjoy an easy life.
4. It is __________ for newcomers to feel anxious and uncertain.
5. More people would __________ cycling if conditions were right.
6. The book is intended for __________ and young __________.
7. It’s hard to change your __________, even harder to keep it changed.
8. At senior high school you should __________ your studies and make progress.
9. Good traditions of the family have been handed down from one __________ to the next.
10. __________ you to follow your teacher’s advice and pay attention to the vocabulary.

3 . The b_________ of the chimpanzees can reflect the their social status and relationship, for example, the leader is often seen having its hair combed by other chimps. (根据首字母单词拼写)