Questions 4 to 7 are based on the
following conversation. At the end of the conversation, you will be given 20
seconds to answer the questions. Now listen to the
conversation.
Why doesn’t the woman believe that weather is responsible for the recent events
A．No melting has been observed. B．The past several winters have been unusually severe. C．Nothing unusual has happened in other parts of Antarctica. D．The ice shelf had remained intact for centuries despite the weather,