大学英语4课后cloze及翻译原题带答案整理完整清晰

大学英语4 课后cloze 及翻译原题带答案 Cloze1 In the 21st century, clouds and stormy weather no longer automatically bring operations to a halt or force a change in targets（ 目 标） . Technologies such as the Global Positioning System now allow cruise missiles（ 巡 航 导弹） and other smart weapons to home in on（ 瞄 准 并飞速 接 近 ） their targets. But the weather still is a factor that must be reckoned with, especially with precision-guided weapons that must be highly accurate （ 高 度 精 确 ） to be effective. Fortunately, the ability to obtain weather forecasts will get better. In the next few years, remote weather sensors （ 传感 器 ） will grow rapidly on unmanned vehicles. This will create a network of observing platforms that will give commanders an instant overview of weather in the battle zone（战场）. In some areas you’ll have direct delivery of weather information straight from the computes to black boxes in aircraft and other vehicles. That will be especially important for target-bound aircraft（瞄 准 目 标的 飞行 器 ）. Such technology will give whoever possess it a tremendous edge（优势）over their enemy and enable them to use developing weather conditions to their advantage. As we get superior satellites into space, we’ll gain huge advantages in observing meteorological conditions in denied areas （ 盲区） , where we don ’ t have people on the ground. And our modeling ability will continue to improve as our computers get more powerful. The past 10 years have witnessed a revolution in our communications and computer abilities. It’s exciting to think of what the next 10 years will bring. 在第二十一世纪，云层和暴风雨天气不再自动带来业务停顿或迫使目标的变化（目标）。如全球定位系统现在...