听力原文

When a typhoon strikes, one of the best places to be is Hong Kong harbour with its sheltered anchorage.
当台风袭来时，香港因其遮蔽的停泊所而成为最佳泊地之一。
A centre of international trade, the city is famous for its jumble of skyscrapers and its bustling commercial centre.
作为一个国际贸易中心，她以参差错落的摩天大楼和熙攘拥挤的商业中心闻名。
But there's a side to Hong Kong that's less well known. Behind the urban sprawl lies a swathe of wetlands which include the Mai Po Nature Reserve.
但香港还有鲜为人知的一面。在这个盲目扩张的城市之中坐落着一片湿地，其中就包括米埔野生动物保护区。
Managed principally for the benefit of migrating birds, the reserve maintains a series of traditional prawn farms, known as gei wais, and their adjoining mangroves and mudflats.
这里主要用于保护候鸟。此外还保存着许多传统的虾塘，也就是基围，还有毗邻的红树林和泥滩。
Every two weeks from November to March, one of the gei wais is drained by opening up the sluice gates.
从11月到3月份，每两周就会打开一个基围塘的水闸排水。

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重点讲解

重点讲解：
1. be famous for
以……而闻名；
eg. Los Angeles is famous for its many freeways.
洛杉矶以其众多的高速公路闻名。
eg. The canyon is famous for producing echoes.
这个峡谷以回声而闻名。
2. a jumble of
杂乱的一堆；混乱的一团；
eg. Through this jumble of futile activities came and went a strange throng of hangers - on.
在这乱哄哄的圈子里还穿梭般往来着一群稀奇古怪的食客。
eg. The shoreline was made up of a jumble of huge boulders.
海岸线上堆着一大堆杂乱的巨石。
3. a swathe of
（土地的）一长条，一长片；
eg. On May 1st the army took over another swathe of territory...
军队在5月1号又接管了另一长条领土。
eg. Year by year great swathes of this small nation's countryside disappear.
年复一年，这个小国家的乡村面积正在一片片地大量消失。
4. be known as
称为；叫做；
eg. They manufacture the class of plastics known as thermoplastic materials.
他们生产这类被称为热塑材料的塑料制品。
eg. Zhejiang is known as the land of tea of our country.
浙江是我国茶乡。
5. open up
（使）开放；
eg. It suddenly occurred to one of the workers to open up the box.
一个工人突然想起打开箱子看个究竟。
eg. This new job could open up whole new vistas for her.
这项新工作可能给她开辟全新的前景。