B. Its residents’ excessive water use.

C. The historically low temperature last winter.

D. The reduction of snowpack on the Sierra Nevada

26. Why will local government remove the 50 million square feet of lawns?

A. To get rid of dry grass B. To decrease the use of water

C. To develop the land for water storage D. To grow plants that can block rainstorms

27. According to the new order, Californians should .

A. Water their lawns every three or four days.

B. Avoid watering their lawns before rainstorms.

C. Take mandatory lessons on water conservation.

D. Keep the emergency rules for water use in mind 高考英语模拟试题库  http://www.17xuexiba.com/yy/