B
①All around the world, buildings are going green! People are making green buildings. What does it mean to go green or to make a green building? A green building is designed in a way that is not harmful to the environment. The building uses energy, water, and other materials in ways that are good for the environment.
②When planning green buildings, architects(建筑师) must think about how to use energy, water, and materials in an environment-friendly way. There are many ways to save energy. Architects can design buildings to use natural light. Buildings can also be made with solar or wind power to get energy from the sun or the wind. To save water, green buildings can have areas on the roofs to collect rainwater. Kitchens and bathrooms can have sinks(洗涤池) and toilets (马桶) that conserve water. As for the materials used to build the building, it is important to use materials that do not have chemicals that are harmful to the air or water. Recycled materials can also be used for the buildings.
③Buildings around the world go green in different ways. An office building in Melbourne, Australia, uses wind and solar power. The California Academy of Sciences in San Francisco, the US, has recycled materials, solar energy, and a huge "living roof" of plants. A temple in Thailand is made with over one million recycled glass bottles! This is a good use of recycled materials, and it also lets natural light into the temple.
④More and more green buildings are being built and they are making the world a better place!
()29. What does the underlined word "conserve" in Paragraph 2 probably mean?
A. Save.
B. Boil.
C. Clean.
D. Produce.
()30. 新考法 How does the writer support the main idea of Paragraph 3?
A. By asking questions.
B. By giving examples.
C. By listing numbers.
D. By explaining reasons.
()31. 新考法 Which of the following best shows the structure of the text?
A. ①//②//③④
B. ①//②③//④
C. ①②//③//④
D. ①②③//④
()32. What can be the best title for the text?
A. Designing buildings.
B. Going green.
C. Recycling materials.
D. Using energy.