Despite years of drought and water-saving policies, Californians continue to put a lot of clean, drinkable water into yards to keep the greenery alive. Now, however, Southern California officials have carried out very strict limits on outdoor water use in response to a water shortage emergency. So you may need to find other ways to keep your plants from drying in the summer sun.
How about watering them with grey water instead of clean water? Grey water is the water from showers, bathtubs, washing machines — anything that’s not filled with human waste, food or poisonous chemicals. With the right measures, grey water can be fine for most plant life.
If you’re a typical Southern Californian, you’re throwing a lot of grey water into the sewer system. Every load of clothes you wash leads to roughly 15 to 40 gallons of it, depending on your washer’s design and efficiency. Over the course of a year, thousands of gallons of soapy water ran away. That’s enough to keep a number of trees and other plants happy. And if you’re really ambitious, you can build a system that carries all of your horned grey water to the roots of your grassland, thus making your non-native grass in your yard watered regularly.
Some critics, the Los Angeles Sanitation and Environment Bureau, see grey water recycling as environmentally risky, damaging public wastewater recycling efforts and uneconomic. However, other local agencies across the state, including the Los Angeles Department of Water and Power, actively endorse grey water projects as a way to reduce water use. Supporters admit that the projects carry some risk and require great efforts, but insist that they can save clean water and help your plants.
【小题1】What can be inferred from paragraph 1?| A．California is very rich in clean and drinkable water. |
| B．There is a lack of water-saving policies in California. |
| C．Outdoor water use in California will be strictly controlled. |
| D．Different ways to save water have been adopted in California. |
| A．To summarize the benefits of using grey water. |
| B．To provide reasons why grey water should be used. |
| C．To make a prediction about the future of grey water. |
| D．To introduce some new ways to save drinkable water. |
| A．Negative. | B．Indifferent. | C．Positive. | D．Objective. |
| A．Oppose. | B．Promote. | C．Abandon. | D．Recover. |
