参考一

Nowadays, with the development of the technology, scientists create more vehicles which are convenient for people to travel. In the future, how will the transportation tools become? Different people have different imagination. As for me, I think that a kind of vehicle which is equipped with clean energy will be created. For in that time, the clean energy will become more popular. For example, people can drive cars which use the power suppled by wind or electrics.

However, in the future ,about fifty years latter ,the vehicle would be used which would be judged by whether it is advantage to the enviromental protection. In other words, the power would not be the petrol, the new energy sources would be used instead of the gas. For example, we would take bus which uses the marsh gas to move.

In my perspective, the vehicles of the future would be more convenient and used less sorces, the future is lightening.People's lives wiould be more beautiful and healthy!

参考二

With the development of economy ,traffic is becoming one of the greatest problems of a modern city.

One problem is pollution .The waste gases from the exhaust pipes are great enemies to the air.And there are so many cars and buses in the city that the harm they cause to the environment is considerable.Another problem is crowdedness .City inhabitants are so familiar with traffic jams that they are part of their lives.Time wasted on traffic and people are made impatient by the awful traffic.Worse than that ,traffic accidents are real-life disasters of blood and death .Traffic has become one of the nightmares of people living in cities.

To build highways and bridges only works out part of the problem .Cars and buses should be improved to give less waste gases.Government should encourage citizens to take buses so that there is less traffic on road.People should obey traffic rules and try not to make trouble on road.City area should be expanded so that there is more space for wide roads.Maybe low-pollution high-efficiency means of traffic should be invented .Only after we pay enough attention to the problem will it be possible for us to solve it .