美联社新闻一分钟 2007-02-06（在线收听）

1. An insurgent group has posted this video online and says it shows a US helicopter being shot down in central Iraq, while the clip has not yet been authenticated. Four US copters have gone down in Iraq in recent weeks.

2. President Bush's 2.9 trillion-dollar budget arrived on Capitol Hill this morning. It would provide billions of dollars for the war in Iraq and make his first-term tax cuts permanent.

3. Across the eastern US, wind chills are bringing temperatures below zero or even lower in some areas. Regional readings are expected to climb above zero today.

4. And a pair of Ford vehicles have scored well in the latest crash tests. Both the Edge and Fusion received top scores in front- and side-impact crash testing conducted by the insurance industry.

WORDS IN THE NEWS

1. authenticate : VERB
If you authenticate something, you state officially that it is genuine after examining it.

2. copter : N-COUNT
A copter is a helicopter.(INFORMAL)

3. wind chill : PHR
Still-air temperature that would have the same cooling effect on exposed skin as a given combination of temperature and wind speed. As the wind speed increases, the wind chill equivalent temperature decreases; e.g., an air temperature of 30 °F (–1.1 °C) with a wind speed of 20 mph (32.2 kph) produces a wind chill of 17 °F (–8 °C). Wind chill is often included in weather reports to describe how cold it feels.