This chapter focuses on the ways by which energy is used. Efficiency is the energy (or power) output divided by the energy input, expressed as a percentage. Many home appliances use electricity. Much of the energy used for space heating is wasted because of the poor insulation of most ...
Each day brings further evidence ___the ways we use energy strengthen our enemies and threaten our planet. A. 装标白领路存和根增系前装标白领路存和根增系前which装标白领路存和根增系前装标白领路存和根增系前 B. 半院六该例太者们料车建动比法半院六该例太者们料车建动比法what半院六该...
aOur healthcare is too costly; our schools fail too many; and each day brings further evidence that the ways we use energy strengthen our adversaries and threaten our planet. 我们的医疗保健是太昂贵的; 我们的学校发生故障太多; 并且每天带来进一步证据我们使用能量的方式加强我们的敌人并且威胁我们的行...
Today, scientists are researching ways that we ___ energy more efficiently in the future. A. use B. will use C. are using D. used 相关知识点: 试题来源: 解析 B。本题考查一般将来时。in the future 表示将来的时间,要用一般将来时,will use 符合。A 选项 use 是一般现在时;C 选项 are ...
We need to find more ___ ways to use energy. A. effective B. efficient C. affective D. affective 相关知识点: 试题来源: 解析 B。efficient 表示“有效率的”;effective 表示“有效的”,强调效果;affective 是“情感的”意思,不符合语境。本题是说找到更有效率地使用能源的方法,用 efficient。反馈...
例如,当我们不使用灯时,把灯关掉。考查动词词义辨析。save节约;use使用;get得到。根据“turn off the lights when we don't use them”可知,不用灯时关灯,能节约能源。故选A。结果一 题目 We can energy in many ways. For example, turn off the lights when we don't use them.A.saveB.useC.get...
They all need energy.Today, we have plenty of energy. In the future, energymay be harder to get. It may cost people more money touse. We should use energy carefully. Turn off lights andmachines when you do not need them. Open or closewindows when you feel hot or cold. You can ...
We can energy in many ways. For example, turn off the lights when we don’t use them. A. save B. use C. get D. spend 相关知识点: 试题来源: 解析 A 【详解】句意:我们在许多方面能节省能源,例如当我们不用灯时,我们关掉它们。A. save 节约; B. use 使用; C. get 得到; D. spend...
We should find ___ ways to make energy. A. other B. the others C. others D. another 相关知识点: 试题来源: 解析 A 名词ways前用形容词修饰,而others和the others是代词,故排除B、C。other“其他的”,后接可数名词时,通常用复数形式;another“又一,另一”,泛指三个或三个以上的人或物中没有...
解析 B 【详解】句意:幸运的是,我们找到了利用太阳能、风能和水的新方法。第一空,根据空后动词use可知,此空应填动词不定式的标志词to,故排除A;第二空,根据空前energy和空后the sun, wind and water.可知,来自的意思,此空故填from,故排除C和D,故选B。反馈 收藏 ...