Unit2 English around the world (时间:100 分钟 满分:120 分)第一部分 阅读理解(共两节,满分 40 分)第一节(共 15 小题;每小题 2 分,满分 30 分)阅读下列短文,从每题所给的四个选项(A、B、C 和 D)中,选出最佳选项
Going to the beach is many Americans' favourite activity
They went swimming in the ocean without giving a thought to what was underwater
But those days are long gone
In the summer of 1988,many of the beaches had to be closed because garbage(废料)from hospitals was found in the water
The garbage included glass bottles with samples of blood,and people were afraid they might get AIDS from the blood
At some beaches,sewage(污物)was found in the water
Americans were shocked by this state of affairs
People didn't think of the underwater garbage because it was out of sight
Some of the most polluted waters still look beautiful
San Francisco Bay is a good ex