(4) With only a 5000-gallon water tank, it didn't take them long to understand that we had to use less water.
举一反三
- With only a 5,000-gallon water tank, it didn’t take them long tounderstand that we had to use less water. (Para. 8) A: With only 5,000 gallons of water available, they soon realized that they had to save water. B: They soon realized that 5,000 gallons of water would sustain them for quite a long time.
- What should we do to keep enough water in the body A: To take two liters of water daily all through the year. B: To eat everything that contains water. C: To take in as much as we have lost. D: To drink only when we feel very thirsty.
- How can we avoid a worldwide water shortage in the future A: We can invent ways of increasing rainfall. B: We can develop ways of reusing water. C: We may use less water. D: We may build fewer steel plants.
- Water is so important, so we should save water. A: T B: F
- Water is 1) __________. We all need water.