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Unit 5 Travelling abroad 导读：随着人们生活水平的提高，越来越多的家庭拥有轿车，但是这也引起了一些问题。 低碳生活(low carbon living)，正是指减少生活作息时所耗用的能量，从而减低碳，特别是二氧化碳的排放。对于我们来说，低碳生活是一种态度，而非能力。 Task: What are the benefits of cycling？ Nowadays, our life is becoming more and more comfortable. More and more families have their own cars. However, an increasing number of cars result in many problems. They not only cause traffic jams, but also produce lots of waste gases, which pollute the air. Too many cars are making our lives inconvenient. So what's the best form of transportation in terms of low carbon living? In my opinion, the best form of transportation in our city is cycling. Firstly, cycling is an environmental－friendly action, which will not pollute air or do harm to the environment. Besides, cycling will save a lot of energy. Secondly, it is a much safer means of transportation compared with other forms of transportation and will not lead to traffic jams. Last but not least, we can go wherever and whenever we like without waiting. There is no doubt that cycling is a convenient means of transportation. In a word, cycling does good to the environment and is a cheap and convenient way for us in our daily activities. | 
