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三、信息还原
根据短文内容，选出适当选项填入文中空缺处，使短文内容通顺完整。(有一个多余项)
Lionfish are beautiful fish. They are also a special kind of troublemaker on the planet. 1. Their numbers have increased(增加) greatly in a few years there, and they have already caused plenty of problems for the ecosystem(生态系统).
St. Lucia is a Caribbean island where action is being taken against lionfish. 2. Many tourists enjoy diving in order to explore the wonders of the huge coral reefs(珊瑚礁).
Unluckily, lionfish eat the local fish that keep the reefs clean and healthy, putting the reefs at risk. 3.
Instead of trying to kill lionfish, islanders are turning the lionfish problem to their advantage. They realise that one way to control the population of lionfish is to hunt them for sport and business. 4. Although the fish have a very harmful sting(刺)，they can be specially prepared，so they are safe to eat. And Caribbean cooks are sure to find a way to turn these unwelcome fish into an unforgettable treat.
5. But at least the fish have been kept from reproducing(繁殖) too quickly. The lionfish are still a problem，but the islanders are making the best of a bad situation—and they are making a living from it too!
A. And they also use the fish for food.
B. The island is famous for its clear blue waters.
C. Besides，lionfish often give birth to babies quickly.
D. They cause serious problems in the Caribbean Sea.
E. Jobs are provided for fishermen in the protected waters.
F. However，the lionfish population has not fallen by much.
根据短文内容，选出适当选项填入文中空缺处，使短文内容通顺完整。(有一个多余项)
Lionfish are beautiful fish. They are also a special kind of troublemaker on the planet. 1. Their numbers have increased(增加) greatly in a few years there, and they have already caused plenty of problems for the ecosystem(生态系统).
St. Lucia is a Caribbean island where action is being taken against lionfish. 2. Many tourists enjoy diving in order to explore the wonders of the huge coral reefs(珊瑚礁).
Unluckily, lionfish eat the local fish that keep the reefs clean and healthy, putting the reefs at risk. 3.
Instead of trying to kill lionfish, islanders are turning the lionfish problem to their advantage. They realise that one way to control the population of lionfish is to hunt them for sport and business. 4. Although the fish have a very harmful sting(刺)，they can be specially prepared，so they are safe to eat. And Caribbean cooks are sure to find a way to turn these unwelcome fish into an unforgettable treat.
5. But at least the fish have been kept from reproducing(繁殖) too quickly. The lionfish are still a problem，but the islanders are making the best of a bad situation—and they are making a living from it too!
A. And they also use the fish for food.
B. The island is famous for its clear blue waters.
C. Besides，lionfish often give birth to babies quickly.
D. They cause serious problems in the Caribbean Sea.
E. Jobs are provided for fishermen in the protected waters.
F. However，the lionfish population has not fallen by much.
答案
1~5 DBCAF
【语篇解读】本文是一篇说明文。文章主要介绍了蓑鲉入侵加勒比海并给当地带来生态危机，然而，当地人积极应对，努力将危机转化为生机。
【语篇解读】本文是一篇说明文。文章主要介绍了蓑鲉入侵加勒比海并给当地带来生态危机，然而，当地人积极应对，努力将危机转化为生机。
解析
【分析】首先通读全文，明确文章主旨：本文介绍蓑鲉入侵加勒比海引发生态问题，当地居民积极应对并将危机转化为机遇。解题时需逐个分析空缺处的上下文逻辑，结合语境衔接词、指代内容等匹配选项：1. 第1空前文提到蓑鲉是“麻烦制造者”，后文说其数量大增带来生态问题，需选衔接“问题”的选项；2. 第2空前文提到圣卢西亚岛，后文说游客潜水探索珊瑚礁，需选与岛屿特征相关的选项；3. 第3空前文说明蓑鲉威胁珊瑚礁，需补充其危害的原因；4. 第4空前文说捕猎蓑鲉用于运动和商业，后文说其可食用，需选衔接商业与食用的选项；5. 第5空后文说蓑鲉未快速繁殖，需选衔接数量变化的转折选项，同时排除多余项。
【解析】1. 第1空：前文指出蓑鲉是“troublemaker（麻烦制造者）”，后文说明其数量大增引发生态问题，D选项“它们在加勒比海造成严重问题”直接承接“麻烦”的具体表现，符合语境，故选D；2. 第2空：前文提到圣卢西亚岛，后文说明游客来此潜水探索珊瑚礁，B选项“该岛以清澈的蓝色水域闻名”解释了游客潜水的原因，衔接岛屿与后文的潜水活动，故选B；3. 第3空：前文说明蓑鲉吃清洁珊瑚的本地鱼，威胁珊瑚礁，C选项“此外，蓑鲉繁殖很快”补充说明其种群数量激增的另一原因，强化危害，故选C；4. 第4空：前文提到控制蓑鲉数量的方式是捕猎用于运动和商业，后文说明其可食用，A选项“而且他们还把这种鱼作为食物”衔接商业用途与食用的内容，符合逻辑，故选A；5. 第5空：后文说“至少鱼没有快速繁殖”，F选项“然而，蓑鲉的数量并没有大幅下降”与后文形成转折，说明问题仍存在，故选F。多余项E（为渔民提供工作）文中无对应语境，排除。
【答案】1~5 DBCAF
【知识点】信息还原（七选五）、语篇逻辑衔接
【点评】本题为说明文类信息还原题，侧重考查学生的语篇理解与逻辑推理能力，解题需紧扣上下文的语义衔接，结合语境细节匹配选项，整体难度适中。
【难度系数】0.5
【解析】1. 第1空：前文指出蓑鲉是“troublemaker（麻烦制造者）”，后文说明其数量大增引发生态问题，D选项“它们在加勒比海造成严重问题”直接承接“麻烦”的具体表现，符合语境，故选D；2. 第2空：前文提到圣卢西亚岛，后文说明游客来此潜水探索珊瑚礁，B选项“该岛以清澈的蓝色水域闻名”解释了游客潜水的原因，衔接岛屿与后文的潜水活动，故选B；3. 第3空：前文说明蓑鲉吃清洁珊瑚的本地鱼，威胁珊瑚礁，C选项“此外，蓑鲉繁殖很快”补充说明其种群数量激增的另一原因，强化危害，故选C；4. 第4空：前文提到控制蓑鲉数量的方式是捕猎用于运动和商业，后文说明其可食用，A选项“而且他们还把这种鱼作为食物”衔接商业用途与食用的内容，符合逻辑，故选A；5. 第5空：后文说“至少鱼没有快速繁殖”，F选项“然而，蓑鲉的数量并没有大幅下降”与后文形成转折，说明问题仍存在，故选F。多余项E（为渔民提供工作）文中无对应语境，排除。
【答案】1~5 DBCAF
【知识点】信息还原（七选五）、语篇逻辑衔接
【点评】本题为说明文类信息还原题，侧重考查学生的语篇理解与逻辑推理能力，解题需紧扣上下文的语义衔接，结合语境细节匹配选项，整体难度适中。
【难度系数】0.5
