The Youth Climate Summit (气候峰会) a week-long festival of climate action for primary and middle schools in the UK, starts on 9 November. It aims to create a fairer, more environmental world and make promises that will help the planet. Climate change is the long-term changes in the world's weather patterns that are mostly caused by human activity. "Unlike world leaders," say the summit's organizers, "young people are refusing to let it drop off the plan." Each day has a topic, which includes food and fashion, looking at how humans harm the environment and how to save the planet. Organizations are leading some on line activities. For example, the Marine Conservation Society is hosting meetings on protecting sea fish. Separately, the environmental organization Greenpeace is running a workshop on how to turn worn-out clothing into something new and wearable. The summit will finish on 13 November, when youth ambassadors (大使) wants schools to stop paper waste. Max, another 16-year-old ambassador wants schools to organize more trips and activities that get students outside to experience the beauty of nature. As part of the summit, hundreds of schools across the country are signing up to the Let's Go Zero activity, aiming to become carbon-zero (零碳的) by 2030. Carbon-zero schools are ones that promise to stop emitting carbon in seven areas, including where they get their food and how they use water and recycle their waste. The activity is run by Ashden, a charity working towards climate solutions. Ashden hopes that schools will be able to help each other by sharing ideas and methods. It is also calling on the Government to back the promise. Head over to transform-our-world.org where you can find out more.1. The writer develops the first sentence in Paragraph 2 mainly by _______.A: telling storiesB: comparing factsC: giving examplesD: listing numbers2. Max advises schools to _______.A: recycle and reuse old clothesB: prevent students from wasting paperC: have meetings on saving endangered sea fishD: provide more chances for students to enjoy the nature3. The underlined word "emitting" in Paragraph 4 is the closest in meaning to "_______".A: using upB: taking inC: sending outD: cutting down4. The purpose of the passage is mainly to _______.A: explain the problems with climate changeB: develop children's ability to solve social problemsC: introduce the environmental organizations to schoolsD: encourage young people to care more about climate change