第一节 (共15小题；每小题2分，满分40分)
阅读下列列短文，从每题所给的四个选项(A、B、C和D)中, 选出最佳选项。并在答题卡上将该选项涂黑．
A
When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a farm and, in the winter especially, we were quite cut off from the outside world. As soon as I left school, I packed my bags and moved to the capital. However, I soon discovered that city life has its problems too.
One big disadvantage is money---it costs so much to go out, not to mention basics like food and housing. Another disadvantage is pollution. I suffer from asthma(哮喘), and at times the air is so bad that I am afraid to go outside. Then there is the problem of travelling round. Although I have a car, I seldom use it because of the traffic jams. One choice is to go by bicycle, but that can be quite dangerous.
