介绍： 1.

A). Some passengers were injured on the plane.

B). There was something wrong with the plane.

C). There were criminals on the jet plane.

D). It had been thought that the jet had been hi-jacked.



2.

A). The jet was intercepted by US air force.

B). The plane’s transponder mistakenly transmitted code...

介绍： 1.

A). Some passengers were injured on the plane.

B). There was something wrong with the plane.

C). There were criminals on the jet plane.

D). It had been thought that the jet had been hi-jacked.



2.

A). The jet was intercepted by US air force.

B). The plane’s transponder mistakenly transmitted code.

C). The pilots repeatedly told controllers they were hi-jacked.

D). The armed police arrested several criminals in the jet.



1. Why was the passenger jet forced to land at Halifax, Canada?

A). Some passengers were injured on the plane.

B). There was something wrong with the plane.

C). There were criminals on the jet plane.

D). It had been thought that the jet had been hi-jacked.



2. What has really happened to the passenger jet?

A). The jet was intercepted by US air force.

B). The plane’s transponder mistakenly transmitted code.

C). The pilots repeatedly told controllers they were hi-jacked.

D). The armed police arrested several criminals in the jet.

答案：DB

A passenger jet（喷气式飞机） headed for New York City was forced to land at Halifax, Canada this morning. The plane’s transponder（发射机应答器，询问机，转发器） was broadcasting a signal（信号） indicating（暗示，表明） it had been hijacked（劫机）. The Virgin Atlantic flight from London’s Heathrow Airport was midway（居中的，在中间的） across the Atlantic when air traffic control officials in the US started receiving its signal: a signal which carried a special code（密码，编码） indicating there was a hijacking in progress. Canadian fighter jets operating under NORAD（北美空防司令部，North American Aerospace Defense Command，简称NORAD）, the joint Canada-US command, were scrambled（紧急起飞） to intercept（拦截） the jet. According to NORAD, the pilots（飞机驾驶员） of the passenger jet repeatedly（重复地）radioed（用无线电发送讯息; 作无线电广播） in to tell controllers they were not being hijacked. But US officials erred on the side of caution（谨慎）. After the plane landed（降落）, armed police boarded it to ensure there were no hijackers. It was determined that the plane’s transponder had mal-functioned（发生故障）, and was mistakenly transmitting code “7500” for hijacking.