An AirAsia flight with 162 people on board lost contact with air traffic control on Sunday after the pilots asked to change course to avoid bad weather during a flight from the Indonesian city of Surabaya to Singapore, Indonesian officials said.

Indonesia AirAsia Flight QZ 8501, an Airbus 320-200, lost contact with the Jakarta air traffic control tower at 6:17 a.m. (2317 GMT).  The aircraft had been flying at 32,000 feet and had asked to fly at 38,000 feet to avoid clouds. No distress signal had been sent.

Tanjung Pandan is the main town on Belitung island, roughly half-way between Surabaya and Singapore, and Singapore's Channel News Asia television said there was bad weather over the island at the time the plane went missing.

Indonesia AirAsia said there were 155 passengers and seven crew on board. It said 157 people on the flight were Indonesians, with three from South Korea and one each from Singapore and Malaysia. The plane had been due in Singapore at 8:30 a.m. Singapore time (0030 GMT).The airline said the captain and first officer were both experienced.

The incident comes at the end of a disastrous year for the region's airlines. Malaysia Airlines lost two aircraft this year. Flight MH370 went missing on March 8 on a trip from Kuala Lumpur to Beijing with 239 passengers and crew on board and has still not been found.On July 17, Flight MH17 was shot down over Ukraine, killing all 298 people on board.

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1.What made the pilots change the flight path?

A A Terrorism Attack.

B Highjack.

C Heart disease of one pilot.

D Bad weather.

解析：选D。D 细节理解题。根据第一段…the pilots asked to change course to avoid bad weather…可知，故选D。

2.What is the flying altitude when the plane was contacting with air traffic control?

A 38,000 feet.

B 32,000 feet.

C 320,200 feet.

D 8,501 feet.

解析：选B。B 细节理解题。根据第二段第二句The aircraft had been flying at 32,000 feet…可知，故选B。

3.How many Malaysians were on the missing plane?

A Three.

B Only one.

C Seven.

D 157

解析：选B。B 细节理解题。根据第四段第二句…with three from South Korea and one each from Singapore and Malaysia.（三名韩国人、新加坡人与马来西亚人各一名），可知，故选B。

4.Which statement is RIGHT according to the passage?

A Flight MH370 was shot down with 239 passengers and crew.

B One baby survived on Flight MH17.

C The destination of Flight QZ 8501 was due to be Singapore.

D The pilots on Flight QZ 8501 had sent distress signal.

解析：选C。C 内容理解题。MH370是失踪不是被击落，A选项错；MH17被击落后无人幸存，B选项错；QZ 8501航班并未发出求救信号，D选项错；QZ 8501的目的地是新加坡，故选C。

5.The translation for “distress signal” in Chinese is__________.

A 灾难迹象

B 灾难征兆

C 求救信号

D 危险暗号

解析：选C。C 语义推测题。distress signal正确翻译应为“求救信号“，故选C。