填空题

Questions 47 to 56 are based on the following passage.
Some farmers may replant corn. Others may (47) corn with soybeans (大豆) . What farmers do now depends partly on the (48) of damage to the land. Floodwaters in some areas may contain industrial waste or other (49) substances.
What the weather does during the rest of the growing season will also be very (50) . Rain delay has (51) soybean planting behind the five-year average in twelve of eighteen major soybean- producing states. Other crops including wheat, rice and oats have also (52) .
In Burlington, Iowa, as many as fifty trains normally pass through the city every day, (53) carrying coal or passengers. But Burlington is quiet now until water is off the rails and workers can inspect for damage. City Manager Doug Worden says Burlington took steps to prevent (54) property damage after the record floods of fifteen years ago.
While the Midwest (55) with recent flooding, the nation’s top agricultural state, California, faces increasingly dry conditions. on June fourth, Governor Arnold Schwarzenegger declared a statewide drought, the first such action since nineteen ninety-one. The order (56) two years of below-average rainfall and other limitations on water supplies.

• A) replaceI) followed
• B) mostlyJ) rigid
• C) benefit K) harmful
• D) suffered L) partly
• E) deals M) receiving
• F) extent N) severe
• G) important O) slight
• H) left