美国NASA正在研究的未来飞机什么样?据说会更加节能、环保且安全。今天的新托福考试阅读练习材料就会为我们介绍这个设计的特点。

　　Through green aviation, our first new initiative in a decade, NASA is helping overhaul the United States air transportation system to create safer, greener and more effective travel for everyone.

　　Our green aviation goals are to expand the capacity of our national airspace system, enable fuel-efficient flight planning, and reduce the overall environmental footprint of aircraft in fuel consumption, emissions and noise.

　　NASA aeronautics&apos five pr**rams conduct fundamental, cutting-edge research into new aircraft technol**ies as well as new operations concepts for takeoff, cruise and approach/landing that conserve time and fuel. We also manage a portfolio of wind tunnels and other testing facilities (icing, propulsion), as well as flight research and support aircraft at different NASA centers around the country.

　　We focus on developing tools and technol**ies that will integrate safely and efficiently with the national airspace system and transition smoothly to industry to become new products.

　　NASA has made decades of contributions to aviation. We continue to develop solutions to benefit the flying public every day.

雅思人人对话口语模式, 考出你的最佳状态 ，雅思认为，语言就是为了人与人的沟通，所以雅思首创一对一口语考试模式, 考核你的真实英语沟通能力，你将在轻松的环境中与考官进行日常沟通, 和冷冰冰的人机对话相比, 能消除距离感和紧张感，雅思采用的纸笔作答模式, 符合中国考生的习惯，能消除面对计算机作答的不适应感, 同时雅思良好有序、安静、无干扰的考场环境, 确保你快速进入考试状态, 让你发挥出最佳水平。雅思考试在34个城市设有43个考点, 遍布中国主要大中城市, 同时一年内有48个考试日期可供考生选择, 考生一般提前1个月即可轻松报名，托福考试分为上下两场，阅读和听力为上半场, 写作和口语为下半场，阅读部分包括3篇文章, 42道题, 60分钟；听力部分包含2个对话和4段演讲（包括教室对话在内）34道题, 总时间55分钟左右；写作部分包括综合写作和*写作两道题, 主要考察学生的语言表达能力；口语部分共有6题, 2道*口语, 4道综合口语（考察校园对话和学术讲座的总结复述能力）。