学英语，英国B-B-C的经验是，“为什么不用学母语的方式学英语呢？”大家学母语都是先学说后认字的吧？听说应该先于阅读才对。

B-B-C的慢速英语收集整理了很多生活话题，它从身边事物入手，引导大家循序渐进学习，侧重于听力练习，让你不知不觉学会英语。

由于温室效应，地球正在升温。当化石燃料燃烧时，释放出的二氧化碳进入大气层，像毯子一样将地球裹起来，这意味着热辐射无法发散，使地球表面温度升高。

这个现象是地球上出现越来越多极端天气事件的原因之一。为减缓这种状况的加剧，人们可以在家里使用更节能的电器、尝试以蔬菜为主的饮食结构。本期节目介绍什么是温室效应。

  • 点击下方听音频

BBC英语-温室效应.mp3（没法传音频，需要私）

  • 单词表

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。

  • 看英文原稿

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。