Ⅶ．词汇运用
【小题1】China ________ (速度) has changed our country and impressed the world.
【小题2】Our earth is becoming more and more ________ (pollute) because of the rapid increase in population.
【小题3】The world is changing ________ (rapid) and we should keep up with the pace of change.
【小题4】Before reaching an ________ (agree), they had a heated discussion.
【小题5】机会就在面前，但值得冒此风险吗？
The chance is right in front of us, but ________?
【小题6】振作起来！毕竟我们还有机会。
Cheer up! _______, we have chances.