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听力原文：It takes only a trip on the busy but rutted highway that leads north from here to understand how a huge swath of the Amazon jungle could have been razed over the course of just a year. Where the jungle once offered shelter to jaguars, parrots and deer, the land is now increasingly being cleared for soybeans, Brazil's hottest cash crop.
What has happened to the Amazon jungle?
A.Highways have been constructed through the jungle to help ease the traffic in the cities.
B.Jaguars, parrots and deer that once inhabited the jungle have left because the place was getting too hot for them.
C.The land has been cleared for growing soybeans because it is the most popular Brazilian fooD.
D.Fast economic development has brought devastating changes to the natural environment in Brazil.