四六级听力部分占据考试的大量分值，有意报名2015年12月英语四六级考试的同学们，在复习备考的同时，也要总结做题技巧，不断练习哦。

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　　Air Accidents More Likely in Africa

　　Africa has about 5 percent of global air traffic but 20 percent of accidents and deaths in 2014.

　　Siddi Kone is an air navigation safety expert. He says many small airline companies that operate south of the Sahara Desert fail to follow international air navigation rules. He says they sometimes do not know where their planes are located.

　　He says air traffic coordination and communication must improve. He says planes cannot travel on the same routes as they fly over the continent.

　　Osei Bonsu is an expert on aviation in Africa. He says countries must work together to locate plane crashes and rescue survivors. He says training is needed to manage air traffic as flights in and out of Africa increase.

　　Air traffic controllers in Africa say they do not have enough workers, and they lack good communication equipment. Air traffic safety experts who gathered in Cameroon this week said some air traffic controllers use mobile phones to communicate with pilots.

　　Some of their other concerns include the loss of power at airports and animals on runways.

　　Air traffic safety and security experts say they need more investment and training to improve the safety of air travel in Africa.

　　1.air accidents 空难;飞行事故

　　Will the people in the buildings will withdraw in timein event of such as air accidents or fire?

　　一旦发生飞机撞击以及火灾等意外，在大楼上的人是否能够安全撤离?

　　2.navigation 航行;航海

　　The compass made possible navigation out of sight of land.

　　罗盘使得远洋航行成为可能。

　　3.coordination 协调;调和;对等

　　Assuming that monitoring and coordination among levels of government and concernedsectors will continue, no disaster are foreseen.

　　假如政府及有关部门的监护和协作能继续下去，就不会发生灾难性损失。

　　4.in and out 进出;往返

　　He weaved in and out through the traffic.

　　他在车辆往来的道路中穿梭前进。

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