All 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 (设计) 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.

When 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 buildings.

Buildings around the world use all three of these ways to go green. An office building called CH2 in Melbourne, Australia, uses wind and solar power. A cultural center in London, England, is made from recycled train cars and is powered by solar and wind power. The Academy of Sciences building in California in the U. S. has recycled materials, solar energy, and a huge "living roof" of plants. A temple in Thailand is made out of one million recycled glass bottles! This is a good use of recycled material, and it also lets natural light into the temple.

More and more green buildings are being built and they are making the world a better place!

1.What do we know about a green building?

A It is usually painted green outside.

B It uses more materials than other buildings.

C It is designed by famous architects.

D It is built in an environment-friendly way.

解析：选D。D. 细节理解题，由第一段“ A green building is designed (设计) 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.”可知，这个建筑是环境友好型。

2.Why do architects design buildings to use natural light?

A To save energy.

B To save materials.

C To protect the plants.

D To protect the buildings.

解析：选A。A.细节理解题，由第二段可知“There are many ways to save energy. Architects can design buildings to use natural light.”是为了节省能源。

3.What does the underlined word “conserve” in paragraph 2 probably mean?

A Save.

B Boil.

C Clean.

D Produce.

解析：选A。A. 词义推测题，A.选项储存，B选项沸腾，C选项清洁，D选项创造，可知可以用“sinks (洗池) and toilets (马桶)”来储存水。

4.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.

解析：选B。B. 推理判断题，第三段讲了很多个国家的例子举例说明了各个国家节省水的举措。

5. What can be the best title for the text?

A Designing Buildings

B Going Green

C Recycling Materials

D Using Energy

解析：选B。B. 主旨大意题，全文都在讲的是如何建设绿色建筑，所以green是我们的中心词。