B／B／C英语随身听，天天磨耳朵

　　

　　先听一遍，肯定有生词，不要紧，看看下面的单词表。

　　?heat up 变暖?greenhouse effect 温室效应?extreme weather 极端天气?heatwave 热浪，酷暑期?greenhouse 温室，暖房?temperature 气温?trap 吸收，保存?global warming 全球变暖?fossil fuel 矿石燃料?carbon dioxide 二氧化碳?waste product 废物?atmosphere 大气层?radiation 辐射?gas 气体?climate 气候?sunlight 阳光?energy-efficient 节能的，高能效的?LED lightbulb 发光二极管灯泡?plant-based 仅有蔬菜的，全素的。

　　

　　学习了生词，回过头再听几遍，争取每句话都听懂，没听出来的对照下面的英文原稿。

　　Our planet is heating up due to something called the greenhouse effect. This is one of the reasons why Earth is seeing more extreme weather events, such as heatwaves, forest fires and floods each year. But what exactly is the greenhouse effect, and what can we do to reduce it?

　　Let's first think about a greenhouse – you may have one in your garden! It's a glass structure that protects plants against low temperatures by trapping heat inside. But, while this helps your plants grow, Earth is trapping heat in the same way, and it's causing global warming. When fossil fuels, such as coal, oil and gas, are burnt for power, carbon dioxide is released as a waste product. It enters the atmosphere and acts like a blanket around the planet, which means heat radiation can't escape and the temperature increases.

　　The impact of gases on the Earth's climate was first investigated in the 1820s. Eunice Foote, a scientist and women's rights activist, tested the effects of sunlight on different gases that she put into glass cylinders. Her results showed that carbon dioxide traps heat more than other gases. The idea of the greenhouse effect was born.

　　So, what can we do to reduce the greenhouse effect? The UN recommends using more energy-efficient electrical appliances at home and switching to LED lightbulbs. Also, by washing your clothes at 30° instead of a higher temperature, around 40% less electricity is used over a year, according to the Energy Saving Trust. A change in diet is also something to consider. The charity A Well-Fed World, claim that plant-based foods, as opposed to meat and dairy, need less land and water to be produced. So, switching saves energy and lowers emissions, which contribute to climate change.

　　We only have one planet, so let's try and take care of it as much as we can.

　　本系列由小留洋?Jennifer负责，想听什么告诉我们，欢迎一起学习一起研究。? 关注「小留洋」，获取更多海外K12教育资料。