Unit 2 Topic 3 What can we do at home to protect the environment?
我们在家能做什么保护环境？
Section A
(A journalist is interviewing Jane about environmental protection.)
（一名记者正在就有关环境保护的问题采访简。）
Hi，Jane. Could I ask you a few questions? 你好，简。我可以问你一些问题吗？
Certainly. 当然可以。
We all know that you’re working for an organization that protects the environment. Can you tell us what you are doing there?我们都知道你在为一个环境保护组织工作。你能告诉我们你在那儿做什么工作吗？
Well，my main job is to help spread the message about protecting the environment. For example，the three R’s---reduce，reuse and recycle---are important. 嗯，我的主要工作是帮助宣传有关环保方面的信息。例如，宣传“3R”——减少使用，再次使用和回收再利用，这些都很重要。
So what can we do at home to protect the environment? 就保护环境而言，我们在家能做些什么呢？
We should reduce the waste we produce. For example，we should use both sides of paper and reuse plastic bags. 我们应该减少人为的浪费。比如，我们应该双面使用纸张，重复使用塑料袋。
What can students do at school?学生在学校里能做些什么？
Recycling can protect the environment，and it can save money，too. So we encourage students to collect waste paper and soft drink cans. Then we sort them so that they can be recycled. 回收再利用能保护环境而且能节约资金。所以我们鼓励学生去收集废纸、饮料瓶等并把它们分类存放，以便回收利用。
Wonderful ideas! Thank you!多么好的想法啊！谢谢！
It’s a pleasure. 不用谢。
Section B
Hi，Michael. Would you like to be a greener person? 嘿，迈克尔。你想成为一名环保使者吗？
Of course，I’d love to. But what should I do?当然，我很乐意。但是我应该怎么做呢？
First，you ought to shut off the electricity when you leave a room. 首先，你离开房间的时候，应该随手关灯。
Oh，that’s easy. What’s next? 哦，那很容易。下一步怎么做呢？
Second，you’d better walk or ride a bike instead of taking a bus or a taxi if you travel a short distance. 第二，如果你短途旅行，最好步行或骑车而不是乘公共汽车或出租车。
That’s right. It will save energy and reduce air pollution.对，那样会节约能源并减少空气污染。
Third，take a cloth bag when you go shopping. Don’t use plastic bags.第三，你去买东西的时候带上一个布袋。不要使用塑料袋。
It’s so easy to be a greener person成为一名环保使者真容易。
Easier said than done.说起来容易做起来难。
Well，actions speak louder than words.嗯，行动胜于雄辩。
Section C
In many countries，people produce power from coal，but it is very dirty and causes acid rain. Some countries use nuclear energy to produce power. However，nuclear power can be very dangerous. To solve the energy problem，people all over the world are looking for new ways to produce power.
China is one of the first countries in the world to use biogas technology. Farmers recycle straw，grass and animal waste to make biogas. This renewable energy is used in people’s everyday lives. Its key disadvantage is that the process requires a long time (up to 30 days) and the cost is high.
Electric vehicles were developed in the 1990s. On April 11，2019，a new kind of vehicle named “Yezi” was shown in the 2019 Shanghai World Expo. It produces electricity from the sun，the wind and CO2. It can not only protect the environment but also save energy. It’s too small to hold many people，but larger models will be developed in the near future.
In China，the best-known maglev train is the German-built one in Shanghai. It takes people just 7 minutes to go to the airport 30 km away. The train can reach a top speed of 431 km per hour. It is quiet and quick. There is no wheel noise，because there are no wheels. Maglev trains are very energy-efficient and do not pollute the air. However，maglev guide paths are much more expensive than traditional steel railways.
在许多国家，人们用煤来生产动力，但是这种方法很脏并且会导致酸雨。一些国家使用核能源来生产动力，然而，核能却非常危险。为了解决能源问题，全
