单项选择题A．Because tourists may protect the environment.B．Because tourists can feed the penguins there.C．Because tourists can become the native population there.D．Because tourism can bring the money to support its preservation.

单项选择题A．She wants to see the penguins.B．She wants to see the ice caps.C．She wants to advocate environmental protection there.D．She wants to make profit.

单项选择题A．A shared room.B．A room with a TV.C．A room with a balcony.D．A room with a sofa.

单项选择题A．370.B．3,700.C．37,000.D．370,000.

单项选择题A．Beginning.B．Intermediate.C．Advanced.D．It s hard to say.

单项选择题A．Global warming in Antarctica.B．Penguins in Antarctica.C．Tourism in Antarctica.D．Environmental protection in Antarctica.

单项选择题A．Before 8 p.m.B．After 8 p.m.C．Before 9 a.m.D．Between 9 and 9:30 a.m.

单项选择题A．He wants to find a partner to learn English with.B．He wants to find a host family to live with.C．He wants to register for a university course.D．He wants to extend his permit.