专题06 阅读理解之说明文10篇(第一期)-备战2024年高考英语名校模拟真题速递(江苏专用)

备战2024年高考英语名校模拟真题速递(江苏专用) 第一期 专题06 阅读理解之说明文10篇 （2023·江苏南京·南京市第一中学校考模拟预测）Trees don’t look at the calendar to see when spring arrives, but they seem to know when spring is here better than we do. The annual shift from winter to spring is a breathtaking event to watch as leaves become green and a lush(苍翠的) environment reveals itself. Recently a research takes a look at why trees in cities are turning green earlier than expected. Scientists use satellite imagery to see when plants turn green. By comparing spring green ups in the 85 largest US cities, scientists found that on average trees start to turn green nine days earlier in cities due to the combined effect of artificial lights and urban heat effect. According to the findings, one of the reasons is the artificial light. City lights brightening the night skies, billboard signs lit up on roadways and car headlights all contribute to shifting the regular day to night cycle that plants and trees rely on. In order to stay alive during cruel winters, trees hit the pause button on their growth. Since temperatures can vary dramatically throughout the winter, the length of daylight is the signal trees look for to safely start growing again and turn green. On average cities are typically 1.8 to 5.4F warmer than rural areas. This is known as the urban heat island effect. The changes in city environments may affect seasonal changes even more than climate warming and mosquito season, water cycles, and also affect pollinators(授粉媒介). Despite the worries and concern, it isn’t all bad news. “With a longer growing season, trees would be able to absorb more carbon dioxide,” A researcher said. “Hopefully they’d have a longer period to do the cooling effect that can help relieve the urban heating effect in cities.” 1．What is the purpose of the text? A．To reveal how trees survive bitter winters. B．To warn how human activities disturb nature. C．To explain why trees turn green earlier in cities. D．To clarify how trees turning green earl