【答案】Private cars have many advantages. People can save time.They don’t need to spend much time waiting for the bus. Private cars make it easier for people to traval. They can enjoy the beautiful views on the road. People can go anywhere any time.  Private cars also have a lot of disadvantages. First, the number of private cars is becoming larger.They waste much energgy. Second, more accidents have happened because of the drivers’ carelessness. Third, they change people’s healthy lifestyle. Many people would rather drive their cars than walk.

  In my opinion, we can ride bikes to school and to work. Riding is a good way to keep healthy. Bikes don’t produce pollution either. Riding a bike is even faster than driving in the rush hour.

【解析】这是一篇给材料作文，介绍私家车的利与弊。结合所给材料，可知本文主要考查一般现在时，人称为第一，三人称，注意主谓一致问题，句子结构主要为系表结构和动宾结构，注意一些常见句式的应用，比如：People can……，Private cars also have……，the number of private cars is…….，Many people would rather……，we can……，Riding a bike is……等句式的应用。写作中注意运用代词，注意多种句式交替运用。写作中注意叙述顺序，符合逻辑关系。