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People are changing the natural world in many ways. Some changes are small, and some are very big. Our actions influence the land,water,air,and even other living things.
First,we change the land. We cut down forests to build cities,farms,and roads. This means animals lose their homes,and some kinds of plants and animals disappear forever. We also dig(挖) big holes in the ground to get coal,metals,and stones.
Second,we change the water. We build dams(水库) to make lakes for drinking water and electricity. Sometimes,we put waste from factories and houses into rivers and oceans. This pollution can hurt fish and other water animals. A big problem is plastic waste,which can stay in the water for hundreds of years.
Third,we change the air. Cars,trucks,factories,and power plants(发电厂) send smoke and gases into the air. These gases can make the earth warmer,which is called climate change. A warmer earth can cause stronger storms and less ice at the North and South Poles.
We even change plants and animals. Scientists can now make new kinds of crops that grow faster or don't get sick easily. This helps grow more food,but it also changes nature.
People are powerful,and our choices shape the planet. We must think carefully about how we change nature,so the earth can stay healthy forever.
1. Why do people cut down forests?（不超过 10 个词）
2. How do cars and factories change the air?（不超过 10 个词）
3. What is one way people can help protect our natural world?（不超过 15 个词）
First,we change the land. We cut down forests to build cities,farms,and roads. This means animals lose their homes,and some kinds of plants and animals disappear forever. We also dig(挖) big holes in the ground to get coal,metals,and stones.
Second,we change the water. We build dams(水库) to make lakes for drinking water and electricity. Sometimes,we put waste from factories and houses into rivers and oceans. This pollution can hurt fish and other water animals. A big problem is plastic waste,which can stay in the water for hundreds of years.
Third,we change the air. Cars,trucks,factories,and power plants(发电厂) send smoke and gases into the air. These gases can make the earth warmer,which is called climate change. A warmer earth can cause stronger storms and less ice at the North and South Poles.
We even change plants and animals. Scientists can now make new kinds of crops that grow faster or don't get sick easily. This helps grow more food,but it also changes nature.
People are powerful,and our choices shape the planet. We must think carefully about how we change nature,so the earth can stay healthy forever.
1. Why do people cut down forests?（不超过 10 个词）
To build cities, farms, and roads.
2. How do cars and factories change the air?（不超过 10 个词）
They send smoke and gases into the air.
3. What is one way people can help protect our natural world?（不超过 15 个词）
Plant more trees to clean the air and give animals homes.（言之有理即可）
答案
1. To build cities, farms, and roads.
2. They send smoke and gases into the air.
3. Plant more trees to clean the air and give animals homes.（言之有理即可）
2. They send smoke and gases into the air.
3. Plant more trees to clean the air and give animals homes.（言之有理即可）
解析
【分析】本题是英语阅读理解的细节信息题，需根据问题关键词定位原文对应段落，再结合问题的词数限制提取答案。第1题定位砍树的原因，第2题定位汽车和工厂改变空气的方式，第3题结合全文主旨给出合理的保护自然的方法，注意控制词数。
【解析】1. 由短文第二段“We cut down forests to build cities,farms,and roads.”可知，人们砍树的目的是建城市、农场和道路，符合词数要求；2. 由短文第四段“Cars,trucks,factories,and power plants send smoke and gases into the air.”可知，汽车和工厂向空气中排放烟雾和气体，符合词数要求；3. 结合短文最后一段“要让地球保持健康”，可从植树等角度作答，如植树来清洁空气、给动物提供家园，符合词数要求。
【答案】1. To build cities, farms, and roads. 2. They send smoke and gases into the air. 3. Plant more trees to clean the air and give animals homes.
【知识点】阅读理解，细节理解，信息提取
【点评】本题考查学生快速定位原文细节信息的能力，题目难度不大，只要认真阅读短文就能找到答案，需注意问题的词数限制。
【难度系数】0.8
【解析】1. 由短文第二段“We cut down forests to build cities,farms,and roads.”可知，人们砍树的目的是建城市、农场和道路，符合词数要求；2. 由短文第四段“Cars,trucks,factories,and power plants send smoke and gases into the air.”可知，汽车和工厂向空气中排放烟雾和气体，符合词数要求；3. 结合短文最后一段“要让地球保持健康”，可从植树等角度作答，如植树来清洁空气、给动物提供家园，符合词数要求。
【答案】1. To build cities, farms, and roads. 2. They send smoke and gases into the air. 3. Plant more trees to clean the air and give animals homes.
【知识点】阅读理解，细节理解，信息提取
【点评】本题考查学生快速定位原文细节信息的能力，题目难度不大，只要认真阅读短文就能找到答案，需注意问题的词数限制。
【难度系数】0.8
