The world is in danger. 世界正处于危险中。 Our world is in danger. 我们的世界正处于危险之中。 We must do something to protect the environment. But, what are the main problems we face? 我们必须做些什么来保护环境。但是，我们面临的主要问题是什么？ The greenhouse effect 温室效应 The atmosphere around the Earth is necessary for all living things. 地球周围的大气层对所有的生物都是必不可缺的。 It is like the glass of a greenhouse, letting sunlight in and keeping heat from getting out. 它如同那温室的玻璃，只让阳光进入，并（起到）保存热量，阻止热量散失（的作用）。 Without it, the Earth would be the same as the Moon—cold and lifeless. 没有它，地球就会变成月亮一样，冰冷而毫无生机的。 When we burn fuels such as petrol and coal, we produce a gas called carbon dioxide(CO₂ ). 当我们燃烧化石燃料【石油和煤炭等燃料】时，我们生产一些气体叫做二氧化碳（CO2）。 Too much of this gas pollutes the atmosphere, and causes it to keep in too much heat. 太多的这些气体会污染大气，并使其保存过多的热量。 As a result of the greenhouse effect, the Earth’s temperature is increasing. 由于温室效应加剧，地球温度持续升高。 This causes sea level to rise, and in the future may cause cities to disappear. 这会导致海平面上升，并在未来可能导致一些城市被海水淹没【消失】。 Cutting down forests 砍伐森林 Every year, we destroy nature by cutting down huge areas of forests. 每年，我们大面积地砍伐森林，破坏着大自然。 This makes the greenhouse effect worse because trees take in CO₂and produce oxygen. 这使温室效应变得更加严重，因为树木能吸收二氧化碳并制造氧气。 Cutting down trees also destroys the homes of the animals that live in our forests, and causes the surface of the soil to be easily destroyed by rain. 砍伐树木也破坏了居住在森林里的动物的家园，并能导致水土流失【土地表层能轻易被雨水破坏】。 This can result in floods and even more damage to the environment. 这可能导致洪水和更多的对环境的破坏。 Bad habits 坏习惯 Many of our habits cause pollution. 我们的很多坏习惯造成了污染。 People often use things once and then throw them away, or leave them on the ground as litter. 人们经常用东西一次就扔掉，或把他们当垃圾弃于地也。 This creates mountains of rubbish and pollutes our land and seas. 这产生了大量的垃圾，并污染我们的土地和海洋。 In order to protect the environment, we need to take proper action. 为了保护环境，我们需要采取适当的行动。 We should be different from many consumers and become “green consumers”. 我们应该与其它消费者不同，应成为“绿色消费者”。 This means that we should only buy and use products friendly to the environment. We should also recycle as many things as we can. 这意味着我们应该只购买和使用“环境友好型”产品【不污染环境的物品】。我们也应该尽我们所能回收（可回收物）。 We can reuse things for the same purpose as before, or we can use them for new purposes. 在我们重新利用一件东西为同一目的之前，或者我们可以使用他们的新用途。 If we just learn to live in new and different ways, we can make a difference. 如果我们学习去生活在新和不同的方法，我们就可以改变世界。 本文来源：https://www.wddqw.com/doc/7cb94251a5c30c22590102020740be1e650ecca6.html