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句法知识很棒，若增加一些从句的使用，文章会更出色；作者能较熟练地使用多样的词汇表达，但请注意单词拼写的检查；文章层次不够分明，缺少组织，需注意文章整体的组织结构。
Before 19 century, there are few airport station in the world, most of which are used for the millitary. It seems without the airplanes, we can not get to the "earth village". So do the airplanes have greater effects than the cars? I will answer you: " Not so"! Firstly, it is impossible for us to go to the work place by airplane every day. Cars play an important role in our life for the short tranpotation. Without cars, we all have to live near the building where we work so that the city would be much more crowed like the ants nest. As in Shanghai and Beijing, how crowed you can imagine it will be if everyone live in the centre part of the city. In that case, the price for the land will be more expensive than you can think. Nobody will be willing to saty working there, in which siutation the economy will not increase and there will be no so many big city in the world. Judging from that, car is an essencial element in morden city. Secondly, you may spend nearly half a year for traveling form China to America. All the trade will be slowed down. You will not have the chance to eat the beef from European in China. And many exports will be cancled, such as fruits, flowers and some foods. Without airplane, the countries from different continents can not conmunicate frequent with each other. We can not exchange the inventions by each other. The Chinese may have the products form Apple until next century. Without airplanes, our ecnomy may still stay in the 19 century even we are in the 21 century. Lastly, it will mske no sense if you compare tongue with the tooth which is more important for us like cars with the airplanes. The tongue can not speak well without tooth and the tooth can not eat easily without tougue. Cars is important in the short transpotation and so does airplanes in long transpotation. In a word, both of them play an important role in the world. Morden society can not go on weill wothout any of them.
