3 . How can you explain that sort of behavior? （英译汉）

4 . 词性转换
1. applicant n. 申请人→________ vi.申请 vt.应用；适用；涂；敷→________ n. 申请;申请书→________ n. 应用程序
2. exposure n. 接触；体验；暴露；揭露→________ vt.使接触；使体验；显露；使暴露于(险境)
3. behave vt.表现 vi.& vt.表现得体；有礼貌→________ n. 行为；举止
4. surroundings n. [pl.]环境;周围的事物→________ adj.周围的；附近的→________ vt.包围；围绕
5. depressed adj.沮丧的；意志消沉的→________ vt.使沮丧；使忧愁→________ n. 沮丧；抑郁
6. strengthen vi.& vt.加强；增强；巩固→________ adj.强壮的→________ n. 体力；优点
7. competence n.能力；胜任；本领→________ adj.有能力的；称职的
8. cooperate vi.合作；协作；配合→________ n. 合作；协作
9. sincerely adv.真诚地；诚实地→________ adj.真诚的

6 . 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

10 . 下列各句均有一处错误，请指出并改正。
1. The railway station is at a distant of two miles away from our school.
2. You can even eat while watch the fish swim by.
3. People say that a person should be judged by his behave, not his words.
4. My heart was beating fast and I was a little out of breathe.
5. He has run out all the money his parents gave him.
6. It is bad manner to talk with your finger pointing at another person.
7. The biggest dolphins can measure four meters length.
8. Tom, as well as his parents, like hiking very much.
9. Mary’s confidence made good impression on everyone in the speech contest.
10. He has to take the responsible for everything.