The mangrove regeneration project

文章大意

美国佛罗里达海岸一项红树林再生项目的第一年情况。红树林生长在河口和海岸，能防洪并为涉禽、鱼类提供栖息地。但百年来农民砍树作柴火、化肥污染水体、垃圾倾倒导致红树林退化。保护者先建沙障失败，后改从种子育苗，重点培育灰红树，在温室发芽后计划用盐水驯化再种入海中。

题目与答案

1. 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」

2. 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

3. · 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

4. · 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」

5. 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」

6. · 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

7. 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」

8. · watered with 38_____ water

   答案：rain

   原文定位：They had, in fact, only been watered with rain water

9. · 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

10. 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」