B
At a high school in Indiana, a group of students are working on ideas to deal with climate change. One student, Murphy, suggests a large container filled with water that would heat up and produce steam（蒸汽）to power a car. Although the idea has limitations, climate scientist Ben Kravitz appreciates it, saying that steam power, while old, still works.
Kravitz developed a lesson with Paul Goddard, a research scientist, and Kirstin Milks, a high school science teacher. The lesson encourages students to think creatively about reducing pollution and solving global warming. Milks believes it’s important for students to not only understand the dangers of climate change but also feel confident to come up with solutions. She says, “These students will lead the future climate work.”
The lesson covers the basics of climate change, explaining that burning coal, oil, and gas gives off carbon dioxide ($CO_2$), the main cause of global warming. Kravitz stresses that reducing greenhouse gas emissions is the only lasting solution, but new technologies, such as wind and solar energy, are needed to make progress.
In the meantime, Kravitz and other scientists are exploring ways, such as climate engineering, to reduce the planet’s temperature. Climate engineering includes techniques like reflecting sunlight back into space or removing $CO_2$ from the atmosphere. However, these ways come with risks, such as changing weather systems and rainfall patterns, leading to loss of biodiversity and impacting agriculture. Students are encouraged to think about such challenges when developing their ideas.
Through this lesson, Milks hopes to develop in students both awareness and optimism（乐观）, showing them that they can play a role in solving global issues.
5. What is Murphy’s idea? （）
A. Design a special car.
B. Power cars with steam.
C. Discover new energy.
D. Make a drinking machine.
6. Why was this lesson developed? （）
A. To equip students for climate action.
B. To discuss the benefits of using solar energy.
C. To encourage students to stop using coal and gas.
D. To explain how climate change affects weather systems.
7. What can we know about climate engineering? （）
A. It can absorb the sunlight.
B. It can add $CO_2$ to the atmosphere.
C. It may enrich biodiversity.
D. It may have effects on agriculture.
8. Which is a suitable title for the passage? （）
A. The Challenges of Climate Engineering
B. Students’ Contributions to Steam Power
C. The Development of Climate-related Technologies
D. Preparing Students for a Better Climate Future

语篇解读 本文是一篇说明文。文章主要介绍了印第安纳州的一所高中开设的关于气候变化的课程。该课程鼓励学生创造性地思考如何减少污染和解决全球变暖问题,让他们明白他们可以在解决全球问题中发挥作用。
5. B 细节理解题。根据第一段中“One student, Murphy, suggests a large container filled with water that would heat up and produce steam (蒸汽) to power a car.”可知,Murphy的想法是用蒸汽驱动汽车。故选B。
6. A 推理判断题。根据第二段中“The lesson encourages students to think creatively about reducing pollution and solving global warming. Milks believes it's important for students to not only understand the dangers of climate change but also feel confident to come up with solutions.”可知,开展这门课的目的是让学生做好为气候变化采取行动的准备。故选A。
7. D 细节理解题。根据第四段中“Climate engineering includes techniques like reflecting sunlight back into space or removing CO₂ from the atmosphere. However, these ways come with risks, such as changing weather systems and rainfall patterns, leading to loss of biodiversity and impacting agriculture.”可知,气候工程可能对农业有影响。故选D。
8. D 标题归纳题。通读全文,尤其根据第二段中“The lesson encourages students to think creatively about reducing pollution and solving global warming. Milks believes it's important for students to not only understand the dangers of climate change but also feel confident to come up with solutions. She says, 'These students will lead the future climate work.'”可知,文章主要介绍了印第安纳州的一所高中开设的关于气候变化的课程。该课程鼓励学生创造性地思考如何减少污染和解决全球变暖问题,让他们明白他们可以在解决全球问题中发挥作用。D项为本文最佳标题,故选D。