Question 1 is based on the news report you have just heard.

News Report One

    New York State plans to shut off the thundering waters of Niagara Falls—again. At least, the American side of the falls. This “once in a lifetime” event actually may take place twice in some folks’ lives. 

    The New York State parks system wants to turn off the falls on the American side sometime in the next two to three years to replace two 115-year-old stone bridges that allow（1）pedestrians, park vehicles and utilities access to Goat Island. The American side of the falls were shut off in 1969 to study the buildup of rock at the base of the falls. When that happened, people came from all over the world to see the falls turned off. 

    People are curious by nature. They want to see what’s underneath. （2）In fact, those who first came to have a look did see something. They found millions of coins on the bottom.

1.Why does New York State want to turn off Niagara Falls?

解析：B。 该题目为细节题。问题为：为什么纽约州想要关掉尼亚加拉瀑布？根据问题关键词“turn off the fall”定位原文。根据原文“The New York State parks system wants to turn off the falls on the American side sometime in the next two to three years to replace two 115-year-old stone bridges that allow pedestrians, park vehicles and utilities access to Goat Island”，纽约州立公园系统计划在未来两年到三年，关闭在美国一侧的尼亚加拉大瀑布，因为要更换两座有115年历史的石桥，这两座石桥之前是行人及车辆上岛的通道和停车场所。原文与选项B) To replace two old stone bridges，更换两座古老的石桥，表达一致。采用视听一致和选项关键词再现率原则，可以选出正确答案B。