一、阅读理解。
A
The Earth is getting warmer day by day, and this big change brings great trouble to many animals. Their homes called habitats（栖息地）are changing rapidly and greatly, and some animals even lose their living spaces forever. Let's look at some sad examples around the world.
Polar bears live on the Arctic sea ice and walk on the ice to find food. But as the Earth becomes warmer, the sea ice melts earlier every spring and freezes later every winter. The ice becomes smaller and smaller, so their living space is getting smaller too. Some of them can't get enough food to eat.
Another one is the red panda（小熊猫）. They live in the cool and wet forests of the Himalayas. The warm weather makes the temperature go up in these forests. The bamboo, which is the red panda's only food, can't grow well in hot weather. With less bamboo and hotter living spaces, red pandas have to move to higher mountains to find a cool home. But the high mountainous habitat is very small, and it's hard for them to live there.
Many other animals like penguins and sea turtles are also in danger. Their habitats are smaller because of warm oceans and rising sea levels. If the Earth keeps warming, more and more animals will lose their homes, and some may even disappear from the Earth forever. We must take action now to stop the Earth from getting warmer to protect these lovely animals.
根据材料内容选择最佳答案。
()1. What is the big trouble for animals from the Earth's warming?
A. They have no food to eat at all.
B. Their places to live are changing fast.
C. They can't find their friends easily.
D. They have to live with human beings.
()2. Where do polar bears live and find food?
A. On the Arctic sea ice.
B. In the cool Himalayan forests.
C. In the warm waters near the sea.
D. On the high mountains of the Arctic.
()3. Why can't bamboo grow well where the red pandas exist?
A. Because the forests become too wet.
B. Because the sea level is rising fast.
C. Because the temperature is too high.
D. Because there are too many red pandas.
()4. What do red pandas do to find a cool home?
A. They move to higher mountains.
B. They look for more bamboo in the forests.
C. They live on the Arctic sea ice with polar bears.
D. They stay in the low habitat and wait for cooler weather.
()5. What's the main idea of the passage?
A. Why the Earth is getting warmer quickly.
B. How to protect the Arctic sea ice for polar bears.
C. What we can do to stop the Earth from getting warmer.
D. Examples about changes of animals' habitats with global warming.

1. B 2. A 3. C
4. A 由第三段“... red pandas have to move to higher mountains to find a cool home”可知，小熊猫为了寻找凉爽的栖息地，不得不搬到更高的山区。
5. D 文章开篇点明地球变暖极大地改变了动物栖息地，随后以北极熊、小熊猫为例展开阐述，最后呼吁保护地球。D 选项符合题意。

【分析】本题为英语阅读理解题，需根据原文内容定位关键信息解答各题：第1题需找地球变暖给动物带来的麻烦，对应原文关于栖息地变化的描述；第2题定位北极熊的生存觅食地点；第3题找小熊猫的竹子生长不良的原因；第4题找小熊猫找凉爽栖息地的做法；第5题需概括文章主旨，梳理全文结构即可得出。
【解析】1. 根据原文第一段“The Earth is getting warmer... Their homes called habitats are changing rapidly and greatly”，可知动物的居住场所（栖息地）快速变化，对应选项B；2. 由原文第二段第一句“Polar bears live on the Arctic sea ice and walk on the ice to find food”，直接确定答案为A；3. 依据第三段“The warm weather makes the temperature go up... The bamboo... can't grow well in hot weather”，可知竹子生长不良是因为温度过高，选C；4. 根据第三段“red pandas have to move to higher mountains to find a cool home”，直接选A；5. 文章开篇点明地球变暖改变动物栖息地，随后以北极熊、小熊猫为例展开，最后呼吁保护，主旨为动物栖息地随全球变暖变化的例子，选D。
【答案】1.B 2.A 3.C 4.A 5.D
【知识点】英语阅读理解、细节理解题、主旨大意题
【点评】本题考查英语阅读理解的细节定位与主旨概括能力，题目设置围绕原文关键信息，难度适中，学生只要仔细阅读原文、准确定位即可完成解答。
【难度系数】0.7