AP 2011-06-10_在线英语听力室_免费在线英语听力学习网站

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1. High winds and dry conditions have helped spread what's now the third-largest wildfire in Arizona history. Thousands of people are believed to have already evacuated¹ the mountains of eastern Arizona and hundreds more have been warned to be ready.

2. In southwest Iowa, piles of sandbags have been placed on a faltering² levee to help contain floodwaters from the Missouri River. One fire official said that if the levee fails, Hamburg, Iowa could be under as much as eight feet of water for a month or more.

3. Police say evidence in the case of a missing Northern California nursing student points to homicide. Twenty-six-year-old Michelle Le was last seen alive on May 27th. Police say a forensic³ examination of her car and other evidence lead them to believe she was killed.

4. The International Air Transport Association has unveiled plans for an airport security system intended to reduce check-in time. The group says the new system would feature iris⁴ scanners and information chips inside passports. The system should be in place within five years.

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1 evacuated
撤退者的
参考例句：
Police evacuated nearby buildings. 警方已将附近大楼的居民疏散。 The fireman evacuated the guests from the burning hotel. 消防队员把客人们从燃烧着的旅馆中撤出来。

2 faltering
犹豫的，支吾的，蹒跚的
参考例句：
The economy shows no signs of faltering. 经济没有衰退的迹象。 I canfeel my legs faltering. 我感到我的腿在颤抖。

3 forensic
adj.法庭的，雄辩的
参考例句：
The report included his interpretation of the forensic evidence.该报告包括他对法庭证据的诠释。 The judge concluded the proceeding on 10:30 Am after one hour of forensic debate.经过近一个小时的法庭辩论后，法官于10时30分宣布休庭。

4 iris
n.虹膜，彩虹
参考例句：
The opening of the iris is called the pupil.虹膜的开口处叫做瞳孔。 This incredible human eye,complete with retina and iris,can be found in the Maldives.又是在马尔代夫，有这样一只难以置信的眼睛，连视网膜和虹膜都刻画齐全了。