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 example of a beautiful bay that's full of chemicals.Scientists discovered pollution in some lakes and rivers when they found fish with rotting skin.People are told not to eat too much fish because of pollution.Most American cities put their garbage in the ground.But New York and a few other cities put their garbage in the ocean.Boston Harbour is so polluted that scientists say it won't recover until the next century.The government has ordered the city to build a sewage treatment plant.Cleaning up oceans won't be easy，but people can no longer ignore this challenge.【语篇解读】 美国海域受污染情况不容乐观。1．The main idea of the article is that________．A．ocean waters around America have become pollutedB．Americans are bringing too much garbage to the beachC．beaches were closed because Americans were shockedD．going to the beach is many Americans' favourite activity解析：...
