Ⅰ. 根据语境及汉语提示写出正确的单词
1. learn to cooperate(合作)
2. pure(纯的) cotton
3. a sheet of transparent(透明的) coloured plastic
4. feel somewhat vexed(恼火的)
5. an absurd(荒唐的) idea
6. give the cat a stroke(轻抚)
7. instinctive(本能的) reaction
8. in despair(绝望)
9. lead a life of luxury(奢侈)
