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三、任务型阅读。(9 分)
Lake Baikal: The Deep Blue Eye of Siberia
Lake Baikal is a famous lake in Russia. It is also known as the "Blue Eye of Siberia". It is not only one of the most beautiful lakes in the world, but also holds many world records.
A Lake of Superlatives(最高级)
Lake Baikal is the deepest lake in the world, with a maximum depth of 1,637 metres. It is also the oldest lake, formed about 25 million years ago. Most importantly, it is the largest freshwater lake by volume(体积), holding more than 20% of the world's unfrozen fresh water. That means about one out of every five cups of fresh water on earth is in Lake Baikal!
A Unique Home for Animals
Because the lake is so old and isolated(与世隔绝的), many unique animals live here and cannot be found anywhere else in the world. The most famous one is the Baikal seal(海豹), the only species of seal that lives in fresh water. The water in the lake is exceptionally(极其) clear and clean.
Threats and Protection
However, this natural wonder is facing some problems. Pollution from factories, like paper mills(工厂), has harmed the water quality. Climate change is also causing the water temperature to rise. Luckily, people have realized these issues. Some polluting factories have been closed down, and scientists are closely studying the lake to help protect it.
32. Where is Lake Baikal located?
33. What is the Baikal seal famous for?
34. How much of the world's unfrozen fresh water is held in Lake Baikal?
Lake Baikal: The Deep Blue Eye of Siberia
Lake Baikal is a famous lake in Russia. It is also known as the "Blue Eye of Siberia". It is not only one of the most beautiful lakes in the world, but also holds many world records.
A Lake of Superlatives(最高级)
Lake Baikal is the deepest lake in the world, with a maximum depth of 1,637 metres. It is also the oldest lake, formed about 25 million years ago. Most importantly, it is the largest freshwater lake by volume(体积), holding more than 20% of the world's unfrozen fresh water. That means about one out of every five cups of fresh water on earth is in Lake Baikal!
A Unique Home for Animals
Because the lake is so old and isolated(与世隔绝的), many unique animals live here and cannot be found anywhere else in the world. The most famous one is the Baikal seal(海豹), the only species of seal that lives in fresh water. The water in the lake is exceptionally(极其) clear and clean.
Threats and Protection
However, this natural wonder is facing some problems. Pollution from factories, like paper mills(工厂), has harmed the water quality. Climate change is also causing the water temperature to rise. Luckily, people have realized these issues. Some polluting factories have been closed down, and scientists are closely studying the lake to help protect it.
32. Where is Lake Baikal located?
In Russia.
33. What is the Baikal seal famous for?
It is the only species of seal that lives in fresh water.
34. How much of the world's unfrozen fresh water is held in Lake Baikal?
More than 20%.
答案
32. In Russia.
33. It is the only species of seal that lives in fresh water.
34. More than 20%.
33. It is the only species of seal that lives in fresh water.
34. More than 20%.
解析
【分析】
这是一篇细节类任务型阅读，解题时不需要逐字逐句通读全文，只需要抓住每道题干的核心关键词，回到原文对应段落定位相关语句，直接提取匹配的信息即可得出答案：第32题抓地点相关关键词Lake Baikal located，第33题抓专有名词Baikal seal，第34题抓关键词unfrozen fresh water，都能快速在原文找到对应表述，无需额外推理加工。
【解析】
32. 定位到原文第一段第一句"Lake Baikal is a famous lake in Russia."，可直接得出贝加尔湖的位置。
33. 定位到"A Unique Home for Animals"板块的第二句"The most famous one is the Baikal seal(海豹), the only species of seal that lives in fresh water."，可直接得到贝加尔海豹的独有特点。
34. 定位到"A Lake of Superlatives"板块的第三句"...holding more than 20% of the world's unfrozen fresh water."，可直接提取对应的淡水占比数据。
【答案】
32. In Russia.
33. It is the only species of seal that lives in fresh water.
34. More than 20%.
【知识点】
阅读理解细节定位，任务型阅读信息提取
【点评】
本题属于基础难度的任务型阅读考题，所有答案均能在原文中直接找到对应原句，不需要复杂的推理和归纳，核心考察学生抓取题干关键词、快速从阅读文本中定位有效信息的能力，适合用来训练学生的基础阅读信息查找能力。
【难度系数】
0.8
这是一篇细节类任务型阅读，解题时不需要逐字逐句通读全文，只需要抓住每道题干的核心关键词，回到原文对应段落定位相关语句，直接提取匹配的信息即可得出答案：第32题抓地点相关关键词Lake Baikal located，第33题抓专有名词Baikal seal，第34题抓关键词unfrozen fresh water，都能快速在原文找到对应表述，无需额外推理加工。
【解析】
32. 定位到原文第一段第一句"Lake Baikal is a famous lake in Russia."，可直接得出贝加尔湖的位置。
33. 定位到"A Unique Home for Animals"板块的第二句"The most famous one is the Baikal seal(海豹), the only species of seal that lives in fresh water."，可直接得到贝加尔海豹的独有特点。
34. 定位到"A Lake of Superlatives"板块的第三句"...holding more than 20% of the world's unfrozen fresh water."，可直接提取对应的淡水占比数据。
【答案】
32. In Russia.
33. It is the only species of seal that lives in fresh water.
34. More than 20%.
【知识点】
阅读理解细节定位，任务型阅读信息提取
【点评】
本题属于基础难度的任务型阅读考题，所有答案均能在原文中直接找到对应原句，不需要复杂的推理和归纳，核心考察学生抓取题干关键词、快速从阅读文本中定位有效信息的能力，适合用来训练学生的基础阅读信息查找能力。
【难度系数】
0.8
