题目

阅读下列短文，从每题所给的A、B、C、D 四个选项中选出最佳选项。 Most of us are aware that we must take care of the environment, and the majority of us take steps to save energy and reduce waste and pollution. But recently some "green truths" have been shown to be only half true, or even completely false. Here are some common ones. Which are really green? ? It's better to take a shower than a bath. It depends on how long you spend in the shower and how large your bath is. If you spend more than eight minutes in a shower, you'll use as much water as in a bath—about 50 litres of water. Therefore, the key is to keep your shower time as short as possible. ? Eating local food is good for the environment. It seems like common sense: eating local food should be better for the environment, because it does not need to be transported long distances and kept cold during transport. Unfortunately, it is not that simple. In some cases, local produce might have used more energy and produced more greenhouse gases than produce grown a long way away. ?_____________________________ When we tun off a device, such as television, it goes into stand-by mode. Devices in this mode still use power, and older devices in stand-by mode can use even more. This happens because electricity continues to leak from the device, even when it is turned "off". To make sure your appliances are in fact off, remove the plug from its power supply. Environmental awareness is now part of daily life. But it's worth checking common ideas and opinions to see what's really green. （1） What food is more environmentally friendly? A . It all depends. B . None of them. C . Local produce. D . Non-native food. （2） Which of the following best suits the blank? A . When you turn off a device, it still uses power. B . When you tun off a device, it stops using power. C . Unplugging a device is better than turning off a device. D . Going into stand-by mode is better than turning off a device. （3） Why does the author write this passage? A . To tell the truth about some "green truths". B . To call on people to protect the environment. C . To explain the significance of energy-saving. D . To present some practical ways to reduce waste. 答案： A D A

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