1. (2022九上·浙江期中) 阅读下面材料，然后从各题所给的A、B、C、D四个选项中选出一个最佳答案。

In India, there are a group of people ironing（熨烫）clothes for a living. Their main tool is an iron box that is heated up by firewood. India's Science and Technology Department found out that there are about 10 million ironing carts in the country. Each of them uses more than 5 kilograms of firewood each day, Reuters reported.

After seeing ironing workers throw the used firewood away on the street side, Vinisha Umashankar, a 15-year-old student from Tamil Nadu, India, told NPR that she started to think about how much firewood people burn and how bad it is for the environment. Burning （燃烧）firewood gives out greenhouse gases such as CO₂, which leads to the rising temperature.

Vinisha had the idea of creating a wheeled ironing cart with the solar panel（太阳能板）. She spent six months thinking about how to make one. The cart has solar panels which take in sunlight to provide electricity. The rest electricity can be stored in a plate for use on cloudy days, according to Time Magazine.

Five hours of bright sunshine is enough to use for six hours.

To complete the invention, Vinisha lost herself in reading college-level physics textbooks to find out how solar panels work. Then, she reported her idea to the National Innovation Foundation, run by the Indian government. Engineers there helped her build working models, NPR reported.

Now, her invention is getting worldwide attention. "I am not just a girl from India. I am a girl from Earth," Vinisha said in her speech. "All of us should understand that environmental problems are real andcan't be solved at a later date," Vinisha continued, "There is no immediate stop. There are no magic ways. "

1. （1） The underlined word "it" in Paragraph 2 refers to      .

   A . the act of burning firewood B . the act of ironing clothes C . the act of throwing firewood away D . the act of rising temperature
3. （2） Which of the following words can best describe Vinisha?

   A . Brave and smart. B . Helpful and creative. C . Careful and loving. D . Quiet and hard-working.
5. （3） What can we learn from the last paragraph?

   A . There is no end to the environmental problems. B . The environmental problems may be solved in magical ways. C . People think that the environmental problems are the biggest ones. D . We should take action to deal with the environmental problems at once.
7. （4） What is the main idea of the passage?

   A . To explain how to protect the environment. B . To tell the story of an Indian girl and her invention. C . To introduce a green invention used to stop air pollution. D . To describe an environmental problem caused by firewood.