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第I卷 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。 A 难度：★★ Scientists are developing unmanned planes called drones that can gather weather information from the atmosphere. The drones could help weather experts improve their predictions. Meteorologists (气象学家) say their weather forecasts would be more accurate (准确的) if they had information from many parts of the atmosphere. They already place satellites and balloons at different altitudes. And they use radar and gather information from devices (装置) on towers. But that information only helps experts predict weather conditions for the next few days. It does not help predict changes in the next few hours. This is very important where sudden, violent storms happen. To solve the problem, scientists at Oklahoma State University are developing new drones to gather information from more parts of the earth’s atmosphere. This will help forecasters improve predictions about local weather conditions. Jamey and other scientists at the university are developing small drones that do not cost a lot of money but can fly for hours, gathering information from many atmospheric levels. Jamey said, “Oklahoma is a really good example, because even though we’re already a very weather-dynamic state, Oklahoma only has two balloon launches a day — one at dawn and one at dusk (黄昏) — from a single location in the state, and that’s where all the weather forecasting information comes from. So it’s difficult for meteorologists to get a very good idea about how that weather is changing from these very limited numbers of data points.” | 
