(Ⅱ)Preparation for writing—words and phrases
①environment n. 环境 ②pollution n. 污染
③population n. 种群 ④protect v. 保护
⑤habitat n. 栖息地 ⑥balance n. 平衡
⑦rare adj. 珍稀的 ⑧melt v. 融化
⑨disappear v. 消失 ⑩care__for 关爱
?human__beings 人类 ?live__in__harmony__with 与……和谐相处