# The mangrove regeneration project - 科目：雅思听力真题（Part 4） - 考频：中频 - 最近考试：2017.8.12/2010.8.21 - 题目数：10 - 来源页：https://www.yaquan.site/paper/cf0d369a-7f7a-4b91-8cd7-8f37fe8c25b2（在线机考练习与音频请访问该页面） - 数据更新：2026-10-29 ## 题目原文 00:00:01,620 You will hear part of a student presentation about a conservation project on the Florida coast of the United States. 00:00:09,820 First, you have some time to look at questions thirty-one to forty on page seven. 00:00:20,820 Now listen carefully and answer questions thirty-one to forty. 00:01:12,520 Today, I'm going to be talking about the first year of a regeneration project in a mangrove forest. Mangrove forests are found along river estuaries and coastlines and are important because they prevent flooding by acting as a barrier between the land and sea. The mangrove trees have special roots, which can breathe and allow them to survive in thick, airless mud. They are also a very important habitat for wading birds, fish, and other animals. In the area where the project is taking place, there have been a number of problems since the area was first settled over one hundred years ago. Many of the mangrove trees were initially burnt as firewood by local farmers. The mangrove forests were also poisoned by settlers' farming methods because the farmers used fertilizer to increase crop yields, and this started to seep into the water, eventually killing part of the mangrove forest. Farming in the area wasn't successful, and what was left of the mangrove forest area wasn't valued by local people as crops couldn't be grown there. And so what happened was that the area started to be used as somewhere to dump trash. 00:02:31,160 Action was urgently needed to protect the mangrove forest and prevent flooding, and so the Mangrove Regeneration Project was set up. The conservationists involved decided to construct a sand barrier around the forests, but unfortunately, this proved to be ineffective. The only way forward appeared to be to grow new mangroves from seed. Several species of mangrove inhabit the forests in this area of the United States, but it is the gray mangroves that we are concerned with here. The seed of this plant is about the size of an almond, and most seeds fall only when they are fully ripe. 00:03:13,500 The Mangrove Regeneration Project first began three years ago. The first set of seedlings was planted in small pots and left to germinate in a hothouse. The plants thrived, and large roots appeared at the bottom of the pots. Ideally, these seedlings should have been conditioned with increasingly salty water before being planted in the sea. They had, in fact, only been watered with rain water. As the plants weren't used to a saline environment, it was decided to plant them out on the south side of a small island nearby. It was hoped that this would allow them to get used to salt water gradually since this part of the island was flooded every day at high tide. There were over one hundred plants planted in this particular spot, and it was necessary to protect them, not from the large number of wading birds which visit the area looking for food, but from the large rabbit colony living in the area. The process for the second set of seedlings was completely different. Young seedlings were collected from the forests and then taken to a new site. The seedlings were then planted in the seabed behind old mangrove roots for protection. However, this method did not prove very successful, and the vast majority of these seedlings were washed away in a storm. Luckily, the first set of seedlings survived, and this method is the one which the project will continue to use in the future. 00:04:45,400 Now, I'd like to describe in more detail the process... 00:04:51,520 That is the end of section four. You now have half a minute to check your answers. ## 题目与答案 ### 31. Mangrove Forests: · protect coastal areas from 31_____ by the sea · an important habitat for wildlife Mangrove Forests: · protect coastal areas from 31_____ by the sea · an important habitat for wildlife **答案**：flooding 原文定位：Mangrove forests are found along river estuaries and coastlines and are important because they prevent flooding by acting as a barrier between the land and sea 同义替换：「coastal areas」↔「along river estuaries and coastlines」；「protect」↔「prevent」 ### 32. Problems: · mangroves had been used by farmers as 32_____ Problems: · mangroves had been used by farmers as 32_____ **答案**：firewood 原文定位：Many of the mangrove trees were initially burnt as firewood by local farmers ### 33. · mangroves were poisoned by the use of 33_____ · mangroves were poisoned by the use of 33_____ **答案**：fertilizer 原文定位：The mangrove forests were also poisoned by settlers' farming methods because the farmers used fertilizer to increase crop yields, and this started to seep into the water, eventually killing part of the mangrove forest ### 34. · local people used the mangroves as a place to put their 34_____ · local people used the mangroves as a place to put their 34_____ **答案**：trash 原文定位：And so what happened was that the area started to be used as somewhere to dump trash 同义替换：「put」↔「dump」 ### 35. Actions taken to protect the mangroves: · a barrier which was made of 35_____ was constructed - but it failed Actions taken to protect the mangroves: · a barrier which was made of 35_____ was constructed - but it failed **答案**：sand 原文定位：The conservationists involved decided to construct a sand barrier around the forests, but unfortunately, this proved to be ineffective 同义替换：「failed」↔「ineffective」 ### 36. · new mangroves had to be grown from seed · the seeds of the 36_____ mangrove were used · new mangroves had to be grown from seed · the seeds of the 36_____ mangrove were used **答案**：gray 原文定位：Several species of mangrove inhabit the forests in this area of the United States, but it is the gray mangroves that we are concerned with here ### 37. First set of seedlings: · kept in small pots in a 37_____ First set of seedlings: · kept in small pots in a 37_____ **答案**：hothouse 原文定位：The first set of seedlings was planted in small pots and left to germinate in a hothouse 同义替换：「kept」↔「planted」 ### 38. · watered with 38_____ water · watered with 38_____ water **答案**：rain 原文定位：They had, in fact, only been watered with rain water ### 39. · planted out on south side of a small island · at risk from the large 39_____ population · planted out on south side of a small island · at risk from the large 39_____ population **答案**：rabbit 原文定位：it was necessary to protect them, not from the large number of wading birds which visit the area looking for food, but from the large rabbit colony living in the area ### 40. Second set of seedlings: · planed in the seabed near established mangrove roots · the young plants were destroyed in a 40_____ Results: The first set of seedlings was successful Second set of seedlings: · planed in the seabed near established mangrove roots · the young plants were destroyed in a 40_____ Results: The first set of seedlings was successful **答案**：storm 原文定位：However, this method did not prove very successful, and the vast majority of these seedlings were washed away in a storm 同义替换：「destroyed」↔「washed away」 --- 以上内容由鸭圈雅思真题库（www.yaquan.site）提供，收录近期雅思考试真题回忆，支持在线机考模式免费练习。