听力原文

Where the reefs meet deeper waters, upwelling currents carry nutrients to the surface.
在暗礁与深水的交接处，上涌的水流携带大量营养元素至表层水。
Reef fish swim out to gorge themselves on the resulting food, in turn attracting larger predatory fish to the reefs. Trevally prowl in dense packs.
珊瑚鱼游出巢穴狼吞虎咽，当有掠食鱼类出现便返回巢穴，他们以密集的队列巡游海底。
Giant rays sweep in on graceful wings to hoover up the remaining plankton, which also attracts the king of fish.
巨鳐挥扫着优美的鳍翅来吸食周围残余的浮游生物，这些浮游生物同时也吸引了鱼中霸王。

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重点讲解

重点讲解：
1. gorge oneself on sth.
贪婪地吃；狼吞虎咽；
eg. The children gorged themselves on icecream.
小孩在贪婪地吃着冰淇淋。
eg. I gorge myself on the food.
我狼吞虎咽地吃。
2. in turn
继而；转而；反过来；
eg. That, in turn would increase pressure for higher wages and that, in turn, would impact on inflation and competition.
那样就会增加工资上涨的压力，而那样又会对通货膨胀和竞争产生影响。
eg. This, in turn, makes speech and written communication richer.
这也因此使得口语及文字沟通变得更加丰富。
3. attract to
引起…的注意（或兴趣、赞赏等）；诱惑；
eg. What first attracted me to her was her incredible experience of life.
她离奇的人生经历最先吸引了我。
eg. These tracks were calculated to be controversial and attract attention to the album.
这些曲子意在引起争议，吸引人们关注这张专辑。