Riding a bicycle is very useful. But people don't always take a bicycle for the following reasons. One of the reasons is the absence of bicycle lanes. Let's look an adcantages and disadvantages of riding a bicycle and building bike lanes. The most important advantage is more simplier and safer riding for bikers around the city. The disadvantage is that there isn't enough place for bike lanes in the city. So, it will be necessary to allocate part of road or pavement. As a result, there will be no place for pedestrians and road capacity will be reduced. Besides, many pedestrians ignore road signs and go along the bike lanes. This impedes bike traffic and increases the probability of accidents. In addition, a lot of money is required for building of bike lanes since it is necessary to put asphalt, draw markings and place road signs. I believe that in future the bike lanes will be an integral part of roads and a bicycle will become an important part of our life.
The rapid development of technologies makes the diverse educational mode come true. an increasing number of universities have opened up distance education in many countries at present. at the same time, hundreds of millions of people will benefit from the emergence of brand-new educational mode. from my perspective, i stand on the side of the view that the positive development from distance learning outweighs its negative effect.there is a common recognition that high quality of education should be available for all to enjoy, not just confined to the rich students. take studying abroad as an example, before appearing distance learning, poor students have no chance to take part in further education abroad because of shortage of money. however, now these students can gain the same quality knowledge by spending less tuition. in addition, distance learning is not restricted to special targets and places. the schedule of distance learning is flexibility so that workers can have classes on their leisure time, which cannot affect workers’ daily work, more important thing is both students and workers can choose study places wherever they want. furthermore, schools will save plenty of expenditure on classroom to improve teacher quality.however, there are certainly shortcomings on distance learning. to begin with, taking traditional classes, we can acquire a variety of opinion on group discussion while distance learning is considerably hard to carry out discussion classes with other overseas students. in the second place, distance learning is unable to use without internet. if we suffer from enormous disaster like earthquake or tornado that makes our internet break off, our learning had to halt until the internet recover.in conclusion , as a coin has two sides, distance learning without exception. distance learning is not only to make universal education possible but also to promote international exchanges.
