( ) 26. In order to watch birds well, we'd better
( ) 27. What should we do if we want to make a bird's nest?
( ) 28. What can we infer from the passage?
B
.( ) 27. What should we do if we want to make a bird's nest?
C
( ) 28. What can we infer from the passage?
C
答案：26. B
27. C
28. C
27. C
28. C
( ) 29. How does the writer begin the passage?
( ) 30. What does the underlined word "shortage" mean?
( ) 31. What does the writer think of the future of wetlands protection?
D
( ) 30. What does the underlined word "shortage" mean?
A
( ) 31. What does the writer think of the future of wetlands protection?
D
答案：29. D
30. A
31. D
30. A
31. D