2 . 根据语境，选择下框中的单词替换句中划线部分的词或词块，使之意思一致，框中有两个多余的单词。

transport,     puzzling,     failure,     official,     errors,     determine,     paths,     pack,     challenging,

1. In the coming three years, our school life will be quite difficult but fruitful.
2. When faced with choosing subjects, most of my classmates decide to chose physics.
3. The author takes novel reading as a way to get away from the confusing world.
4. From his point of view, the goal keeper of the team of his city is totally a loser.
5. Going up the mountain to cut firewood, they met a large group of wolves attacking them.
6. The heads of the two states held their second formal meeting in Huhai Mountain Villa.
7. Since childhood, I have made many mistakes, but I don't think it terrible to make some.

6 . 词性转换
1. puzzle vt. 迷惑；使困惑→________ n.谜；疑问→________ adj.令人困惑的→________ adj. 困惑的，糊涂的
2. legal adj.法律的；合法的→________ adv.合法地→________ adj.非法的→________ adv. 违法地；非法地
3. surround vt.围绕；包围→ ________ adj.周围的→ ________ n.环境
4. achievement n.成就；成绩；达到→________ vt.完成；达到
5. location n.地方；地点；位置→_________ adj.位于→ ________ vt.使坐落于vi.定位；定居
6. evidence n.证据；证明→________ adj.明显的
7. eager adj.热切的；渴望的→________ adv.热切地；渴望地→________ n.渴望；热心；热切
8. crowd n.人群；一群人；民众 vt.挤满；使……拥挤→ ________adj.拥挤的

9 . The sudden fall in the value of the dollar _____ financial experts.

A．puzzling

B．has puzzled

C．puzzled out

D．puzzles about