South of Florida，many islands dot （点缀着） the ocean．One of them is Hispaniola．Its name points to the fact that Christopher Columbus visited the island in 1492．As a result，Spain ruled the island for the next 300 years．Two nations now share the island．Haiti makes up （占据）the western one-third．The Dominican Republic makes up the eastern two-thirds．
The Dominican Republic's area is about 18，000 square miles with the population of 8 million． Most people live close to the island's coast．Like many other tropical（热带的）islands，the Dominican Republic regards tourism as a key industry．The coastal cities，especially，depend on tourists to fill their hotels and restaurants．The natural beauty of the beaches and of the forests draw Dominicans and tourists alike．
When you're ready for something else，walk into town．Music，dancing，and people in Colourful masks （面具） will greet you at nearly every street corner．Whether you go to join them or get away from them，there will be a place for you in the Dominican Republic．
46．Which of the following maps shows the right position of Hispaniola，Haiti and the Dominican Republic？
47．What happened to Hispaniola after Christopher Columbus visited there in 1492？
A．Spain ruled the island for 300 years．
B．Two nations shared the island．
C．The Dominican Republic joined the island
D．The name of Haiti began to use．
48．The Dominican Republic is famous for
A．hotels B．restaurants C．tourism D．forests
49．The last paragraph （段落） seems to tell us that people in the Dominican Republic are
．
A．colourful B．friendly C．busy D．brave
50．The reading above is probably taken from
．
A．a science book B．a story book
C．a geography book D．a picture book．