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  3. Now, air travel has become much cheaper than in the past. Some people say that is a positive development, while some people disa

Now, air travel has become much cheaper than in the past. Some people say that is a positive development, while some people disa

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问题     Now, air travel has become much cheaper than in the past. Some people say that is a positive development, while some people disagree with this.
    What do you think?
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答案 Nowadays, people can choose to travel by bus, train, ship, and airplane. In the past, travelling by air was too expensive to be popular, but things are different now: air travel has become much cheaper. Therefore, I argue that this is definitely a positive development. Firstly, airplane travels extremely fast, thus it saves us a lot of time. We know that in the past, travelling from Britain to America by ship would take at least a month, but now it only needs five to eight hours. One can start out from Britain in the morning and join friends in the States for dinner! In fact, thanks to the fast speed of airplane, many lives have been saved. Secondly, travelling by air is safer than by any other means of transport. There are car crashes happening here and there on highways, taking away thousands of lives every day. People may think that train and ship are much safer than airplane, but statistics show that the rate of an airplane crash is far lower than these two means of transport. I have travelled by air dozens of times and I’m quite confident about the safety of air traveling. Sure enough, apart from some worries about the safety of airplane, people are also worried that due to the cheaper prices of air tickets, there will be more and more people choosing to travel by air, thus resulting in huge consumption of fuel and severe air pollution. This is indeed a problem worth our deep consideration. However, I firmly believe that with the development of science and technology, new types of fuel will definitely be found and then, air travel will pose no threat at all to the environment. From the foregoing discussion, we can see that air travel becoming cheaper and cheaper is absolutely not a bad thing.
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