选修6Unit 4 Global warming2课 前 三诵读话题经典言 两 语3Only in this way can we4so badly polluted that 5基 础 知构建知识体系识 梳 理6tend quantity glance advocate mild 7range widespread average circumstance environmental 8quantities ranging glanced 9circumstances averaging 10opposed consequently statement 11steadily existence 12consequences Consequentlystated statement 13contribution growth educator education disagreement 14pollution polluted existence existing economical economy 15existence exists existing 16economyecon
