(一)Where can you see wind farms?
A.On hills. ______
B.On oceans. ______
C.At homes. ______
A B
A.On hills. ______
B.On oceans. ______
C.At homes. ______
答案：A B
(二)How do you use electricity?
A. To light our homes.
B. For televisions.
C. To move the blades on wind turbines. ______
D. For computers.
A. To light our homes.
A
B. For televisions.
B
C. To move the blades on wind turbines. ______
D. For computers.
D
答案：A B D