听力原文

One of the most important tropical habitats for young fish is mangrove swamps. In the last 40 years, 80% of China's mangroves have been destroyed.
对幼鱼而言最重要的热带栖息地之一—红树林沼地在过去四十年间有百分之八十被破坏殆尽。
But at the Dongzhaigang Mangrove Reserve in Hainan, a remarkable conservation initiative is bringing young Chinese volunteers together to plant mangrove saplings in the glutinous mud.
然而地处海南的东寨港红树林自然保护区正将年轻的中国志愿者聚集到一起，在粘稠的泥浆中种植红树苗。
For many of these city-born students, such unglamorous work demonstrates their commitment to their country's environment.
对这些城市孩子而言，如此枯燥的工作证明了他们对祖国环境事业所肩负的责任。
Like other heavily populated countries, China today is faced with a challenge. How best to protect nature in an increasingly crowded space?
正如其他人口众多的国家一样，中国面对着一个重大挑战：如何在不断缩减拥挤的环境下保护自然？

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重点讲解

重点讲解：
1. one of+形容词最高级
（同类事物或人中）（最…之）一；
eg. I think I've got one of the most stressful jobs there is.
我想我得到的这份工作是其中最繁重的工作之一。
eg. He became one of the best known actors of his day.
他成了他那个时期最著名的演员之一。
2. bring together
集合；使联合；
eg. The advantage is that partners can bring together ideas, talents, and money.
好处是合伙人可以集思广益，聚集人才和资金。
eg. The meeting will bring together elected leaders business owners, students, parents and education officials.
这个会议将会把领袖，商人，学生，家长和教育官员召集到一起。
3. be faced with
面临；面对；摆在…面前；
eg. They were faced with the daunting task of restoring the house.
他们面临着修复房子的艰巨任务。
eg. He was faced with two alternatives -- death or submission.
他面临两种选择 —— 死亡或者投降。