单词拼写（共5小题；每小题1分，满分5分）

小题1:The Song Dynasty c______________ three great inventions to world civilization, which have improved people’s life a lot.

小题2:A kind of friendly ____________ (气氛) can be felt throughout the conversation.

小题3:You have been ______________ (推荐) as a typist in our company.

小题4:He lit a c_________________, got up and went off.

小题5: Doing sports r___________ will help you keep healthy.

1962年，美国女作家雷切尔·卡尔森出版《寂静的春天》，引起对

A．热带雨林砍伐的关注

B．杀虫剂使用的关注

C．大气环境圈污染的关注

D．地质与土壤环境的关系