英语四级新闻听力分析 英语四六级

　　下面小编跟大家一起了解英语四级新闻听力分享，希望对大家的学习有所帮助。
　　1.
　　A. Rocket fuel.
　　B. Pressure from sunlight.
　　C. Wind.
　　D. Nuclear fuel.
　　2.
　　A. About 32 square meters.
　　B. About 22 square meters.
　　C. About 720 square meters.
　　D. About 2 square meters.
　　二、听力文本
　　A major experiment in solar sailing is set to launch this month. Solar sailing is a method that can push, or propel, a vehicle through space. A spacecraft is attached to a large solar sail to capture wind pressure from sunlight. This pressure is the force for movement. A small spacecraft is set to demonstrate this technology after being launched from a rocket on June 22. The spacecraft, called LightSail 2, will launch from a Falcon Heavy rocket built by American aerospace company SpaceX. The rocket will launch from Florida's Kennedy Space Center.
　　LightSail 2 is a small spacecraft that weighs about five kilograms. LightSail 2 will be part of a U.S. Department of Defense operation that will also launch about 24 satellites. A main goal of the operation is to demonstrate the power of sunlight to propel spacecraft without the need for costly rocket fuel. Once in space, LightSail 2 will deploy its solar sail system, which covers a total area of about 32 square meters. Over time, it will seek to raise its orbit using the small,
　　continual pushes from solar photons. Project officials say they expect LightSail 2 to fly to an orbit of 720 kilometers high. This will be the first time navigating by light in Earth orbit. The amount of orbital energy needed to move LightSail 2 forward can be increased by changing the position of the sail. When a solar sail faces the Sun directly, photons push the spacecraft forward, away from the Sun. But the sail can move in other directions permitting control over where it travels.
　　Question 1: According to the news report, what propels LightSail 2 in space?
　　Question 2: According to the news report, how much area will the solar sail system of LightSail 2 cover?

　　三、重点词汇
　　1. solar: of or from the sun, or using the energy from the sun to produce electric power 太阳的；来自太阳的；使用太阳能的
　　2. propel: to push or move something somewhere, often with a lot of force 推进，推动
　　3. aerospace: producing or operating aircraft or spacecraft 航空航天工业的；航空航天器制造的
　　4. orbit: the curved path through which objects in space move around a planet or star （天体围绕行星或恒星运行的）轨道
　　5. navigate: to direct the way that a ship, aircraft, etc. will travel, or to find a direction across, along, or over an area of water or land, often by using a map （常指借助地图）导航，确定…的方向
　　6. photon: a single unit of light 光子，光量子
　　四、背景知识
　　行星协会宣布其下一代光帆驱动的卫星将于下个月发射。这个名为LightSail 2的卫星将于6月22日从佛罗里达州肯尼迪航天中心由SpaceX Falcon 重型火箭送入轨道。一旦LightSail 2进入轨道，它将部署一个太阳光帆，其尺寸与拳击台大小相当，旨在利用太阳光子为提供卫星推进力。如果任务成功，LightSail 2将成为一 个利用太阳光提升地球轨道的航天器。Lightsail2将部署其四块双面太阳能电池板。大约一天后，四个三角形的聚酯薄膜帆展开。帆的总面积为32平方米。太阳帆的持续推力应该会使Lightsail2的轨道在太阳帆部署后一个月内提升到新的高度。
　　五、参考答案
　　Question 1: B
　　Question 2: A