24. Pandas will __________ if we continue destroying ecosystem(生态系统).

   A. die of       B. die away    C. die from    D. die out

23. Now day breaks, ________ the birds are singing.

A. because       B. for       C. since        D. as

22. When and where to go for the holiday __________ yet.

   A. are not decided           B. have not been decided

   C. is not being decided     D. has not been decided

21. ? Isn’t the girl who talked to you kindly your sister?

?            . She is my English teacher.

  A. Yes, she isn’t    B. No, she is      C. No, she isn’t        D. Yes, she is

20. A. By turning off lights and water when we are not using.

      B. By using the sun for light instead of house lights in the evening.

      C. By using rain water in the kitchen.

注意：请同学们翻到第Ⅱ卷，继续做第五大题――听力填表。

从每小题A、B、C、D中选出一个能填入句中空白处的最佳答案。

19. A. Electricity.                     B. Water.               C. The rains.

18. A. Green buildings are built far away from bus stops.

       B. Green buildings are often built near forests.   

       C. Green buildings have lots of windows.

17. A. The color of the buildings.      B. Buildings that can save energy and water.

       C. People can grow vegetables in them.

16. A. Green buildings.             B. Greenhouses.         C. Ordinary houses.

    B. Because he can change a new computer with $400.

C. Because he poured some hot coffee on the computer and it broke down.

（四）录音中有一篇短文和五个问题，听短文和问题两遍，然后从每小题A、B、C中选出能回答每个问题的正确答案。