解析 答案见上【句意】水是有用的能源。【知识点拨】本题考查冠词。【分析】”water“水,是总称,指水资源,不能给它量化,”有用的能源“是一个抽象的概念,前面不加冠词,选项C.符合题意。选项A.和B.一个,不符合题意。故答案为C。 反馈 收藏
三、用many或much填空。1. In ___places, there is not ___water.2. We shouldn't drive so ___ because cars use a lot of energy. 相关知识点: 试题来源: 解析 many;much核心短语/词汇:places:地方(place的名词复数)句子译文:在许多地方没有太多的水。解析:本题主要考查many,much在作为形容词修饰...
Energy PolicyF. Ackerman and J. Fisher, "Is there a water-energy nexus in electricity generation? Long- term scenarios for the western United States," Energy Policy, vol. 59, pp. 235-241, 2013.Ackerman F, Fisher J. Is there a water-energy nexus in electricity generation? Long-term ...
①In the popular imagination, of course, guilt still gets a bad rap. ②It is deeply uncomfortable—it’s the emotional equivalent of wearing a jacket weighted with stones. ③Yet this understanding is outdated. ④“There has been a kind of revival or a rethinking about what guilt is and wh...
Tidal Energy There are basically two methodologies for creating tidal power: the use of tidal dams or ocean currents. Dams are based on using a barrage at a bay or estuary with a large tidal range. Power is generated primarily at ebb tides as the barrage creates a significant head of wate...
相关知识点: 试题来源: 解析 provide; to meet核心短语/词汇:to meet one's need:满足某人的需要句子译文:我们的城市正设法提供更多的能源和水来满足人们的日常需要。Provide有“提供、供应”的意思,to meet one's need 是一个固定词组搭配。 反馈 收藏 ...
Solar energy comes from the Sun. There is also energy that comes from wind and water.generator But do you know that energy can come from people, too? When you pedal a bike, you produce energy. You use your legs to push the pedals. Your pedal energy is transferred (转移) to the bike...
New Energy in the Twenty-first Century Energy from the wind Wind is a kind of clean energy, and there is lots of it. But, if there’s no wind, there is no wind energy. Energy from the water When water moves from a high place to a lower place, it can make electricity without poll...
When water moves from a high place to a lower place,it can make electricity(电)without pollution.However,people have to build dams(水坝) to use this energy,and building dams is very expensive. Energy from the earth There is heat in the rocks under the earth.Scientists use the heat to ma...
"You could be opening a gate on a canal, turning on a pump in a river system, whatever it might be, when you're not supposed to and it's not your water. It's the same as taking a car or a cow or anything else really." Loch says that, although most people a...