本句中主语是electricity(电),宾语是streets and buildings(街道和建筑物),这里的lights是实义动词light(照亮)的第三人称单数一般现在式,它在句中作谓语。题干所给项A项中的bulbs是名词bulb(灯泡)的复数形式。B项gives light to(给···光亮),gives是动词give(给)的第三人称单数一般现在式,gives light to可以...
Turn off your ___ computer and ___ light bulbs. Let's go out for a walk.( )A. electrical; electronicB. electronic; electricC. electric; electricalD. electric; electronic 相关知识点: 试题来源: 解析 electrical电的,与电有关的,指与电有关的事物,被修饰的事物本身并不能带电,electronic电子...
A lightning bolt can have a voltage of up to three million (3,000,000) volts (and lasts less than one second). LED light bulbs consume roughly one-sixth of the electricity that conventional lights do, cost roughly a fourth as much to operate, and last roughly 40 times longer. Electrici...
10 Pack 3.2V Mini LED Light Bulbs These LED bulbs are a great alternative to incandescent bulbs. $12.95 Surprising Science for Kids: Electricity! Plug into the science of electricity. $29.95 e-Blox Kits Click here to see our newest E-Blox Kits! With E-B... ...
Potatoes are vegetables and food, but they actually generate electricity. They light up light bulbs. It's crazy! 把导线两端分别连接到铜棒和锌棒上,再将铜棒和锌棒分别插在每个土豆上,并按顺序错开。最后,把灯泡接在导线头上,你会发现,...
Electricity plays an important role(角色) in our society. First of all,electricity is used for lighting. Light bulbs illuminate(照明) millions of families,bringing people brightness, comfort and convenience(方便).Secondly, we can use electricity to drive machines, such as washing machines,vacuum cl...
(电) is off.In 1800, Alessandro Volta succeeded in building a voltaic pile Batteries(伏打电堆) to produce electricity.His voltaic pile is the first battery in the world.Joseph Swann and Thomas Edison both produced a light bulb Light bulbs within months and they worked together to make their...
Electricity is the generated flow of electrons through pathways to power everyday objects like computers, heaters, and light bulbs. Important electricity terms Conductors and Insulators:Good conductors are materials that let electricity flow through them easily. Most metals are good conductors, which is...
The Newer style of the bulb is highly energy efficient. They assist in saving an ample amount of money and electricity over the time. Compact fluorescent bulbs make use of only 1/4 the of the energy used by the incandescent bulbs. They come in a wide variety of style and shapes. You ...
Economy mode– Many dishwashers have optional settings that consume less energy and water. Air dry– Letting your dishes air dry instead of using the heated dry cycle will reduce your energy usage. The incandescent light bulbs that we have been so used to are starting to phase out as the ...