四级Most roads, bridges, transit, water systems, the electric grid, and communications networks were installed 50 to 100 years ago, and they are largely taken for granted until they fail.

大多数道路、桥梁、交通、供水系统、电网和通信网络都是50至100年前安装的，在出现故障之前，它们基本上被视为理所当然。

2017年6月阅读原文

四级The residents are billed by "net metering": they pay for the amount of power they tap off the grid, less the kilowatts (千瓦) they feed into it.

居民按“净计量”计费：他们支付从电网中取电的电量，减去千瓦(千瓦) 他们在里面吃东西。

2013年6月阅读原文

六级What happens to the centralized electric grid, which took decades and billions of dollars to build, as more and more people become prosumers, who produce and consume their own energy on-site?No one knows which – if any – battery technology will ultimately dominate, but one thing remains clear: The future of energy is in how we store it.

随着越来越多的人成为现场生产和消费自己能源的消费者，花了几十年和数十亿美元建成的集中式电网会发生什么？没有人知道哪种（如果有的话）电池技术将最终占据主导地位，但有一点仍然很清楚：能源的未来在于我们如何储存能源。

2016年12月阅读原文

六级What happens to the centralized electric grid, which took decades and billions of dollars to build, as more and more people become "prosumers," who produce and consume their own energy on-site?

随着越来越多的人成为“消费者”，他们在现场生产和消费自己的能源，花了几十年和数十亿美元建成的中央电网会发生什么？

2016年12月六级真题（第一套）阅读 Section C

四级They pay for the electricity from the grid less their home-generated power

他们从电网中支付的电力减去他们家里的发电量

2013年6月阅读原文

四级If they generate more power than the home is using, the excess flows into the utility's power grid (电网)

如果它们产生的电能超过家庭使用的电能，多余的电能就会流入公用事业公司的电网(电网)

2013年6月阅读原文

四级They only pay for the excess power that flows into the utility's power grid.

他们只支付流入公用事业公司电网的多余电力。

2013年6月阅读原文

四级The residents are billed by "net metering": they pay for the amount of power they tap off the grid, less the kilowatts (千瓦) they feed into it

居民按“净计量”计费：他们支付从电网中取电的电量，减去千瓦(千瓦) 他们在里面吃东西

2013年6月阅读原文

四级If they generate more power than the home is using, the excess flows into the utility’s power grid (电网).

如果他们产生的电力超过了家庭的使用量，多余的电力就会流入公用事业的电网(电网).

2013年6月大学英语四级考试真题(第1套)

四级The residents are billed by “net metering”: they pay for the amount of power they tap off the grid, less the kilowatts (千瓦) they feed into it.

居民按“净计量”计费：他们支付从电网中接入的电量，减去千瓦(千瓦) 他们给它喂食。

2013年6月大学英语四级考试真题(第1套)

四级Broader definitions of the sharing economy include peer-to-peer lending or putting a solar panel on your roof and selling power back to the grid (电网).

共享经济的更广泛定义包括对等借贷或在屋顶上安装太阳能电池板并将电力售回电网(电网).

2013年12月大学英语四级考试真题(第1套)

四级Broader definitions of the sharing economy include peer-to- peer lending (though cash is hardly a spare fixed asset) or putting a solar panel on your roof and selling power back to the grid (电网).

更广泛的共享经济定义包括对等借贷（尽管现金几乎不是备用的固定资产）或在屋顶上安装太阳能电池板并将电力售回电网(电网).

2013年12月大学英语四级考试真题（第2套）