Owning a Private Car
        　　1. 目前，有越来越多的人拥有私家车；(图表略)
        　　2. 拥有私家车的利与弊；
        　　3. 结论。
        　　［参考范文］
         　　Nowadays , there are more and more people owning private cars. On the one hand, some wealthy people who either are the boss of the private company or the white-collar managers in big companies have their private cars. On the other hand, some young people who are future-minded buy private cars ahead of their income by loans from banks.
        　　Is it a good or bad thing to have a private car? Just as a coin has two sides , so there are both advantages and disadvantages of having a private car. So far as its advantages are concerned, there are two examples for this. First , it plays a very important part in providing its owner with convenience, enabling the owner to go where he wants to quickly and easily. Second, it can help its owner to save a lot of time which may be wasted by waiting for other vehicles. However, it also has its disadvantages . For one thing, it will have a negative effect on both the crowded traffic system and the environment in the long run. For another, it places burden on the public utility in providing more parking lots.
        　　In short , owning a private car has both its advantages and disadvantages. It is advisable that we should pay much attention to the environmental protection by not having a private car if we have little or no practical use of the private car.