有关电的英语文章尽量从简,篇幅不要太大也不要太短,约150词左右即可.麻烦,尽快,.

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有关电的英语文章尽量从简,篇幅不要太大也不要太短,约150词左右即可.麻烦,尽快,.有关电的英语文章尽量从简,篇幅不要太大也不要太短,约150词左右即可.麻烦,尽快,.有关电的英语文章尽量从简,篇幅不

有关电的英语文章尽量从简,篇幅不要太大也不要太短,约150词左右即可.麻烦,尽快,.
有关电的英语文章
尽量从简,篇幅不要太大也不要太短,约150词左右即可.麻烦,尽快,.

有关电的英语文章尽量从简,篇幅不要太大也不要太短,约150词左右即可.麻烦,尽快,.
Electricity
The modern age is an age of electricity.People are so used to electric lights,radio,televisions,and telephones that it is hard to imagine what life would be like without them.When there is a power failure,people grope about in flickering candlelight,cars hesitate in the streets because there are no traffic lights to guide them,and food spoils in silent refrigerators.
Yet,people began to understand how electricity works only a little more than two centuries ago.Nature has apparently been experimenting in this field for millions of years.Scientists are discovering more and more that the living world may hold many interesting secrets of electricity that could benefit humanity.
All living cells send out tiny pulses of electricity.As the heart beats,it sends out pulses of record; they form an electrocardiogram,which a doctor can study to determine how well the heart is working.The brain,too,sends out brain waves of electricity,which can be recorded in an electroencephalogram.The electric currents generated by most living cells are extremely small -- often so small that sensitive instruments are needed to record them.But in some animals,certain muscle cells have become so specialized as electrical generators that they do not work as muscle cells at all.When large numbers of these cells are linked together,the effects can be astonishing.
The electric eel is an amazing storage battery.It can send a jolt of as much as eight hundred volts of electricity through the water in which it lives.(An electric house current is only one hundred twenty volts.) As many as four-fifths of all the cells in the electric eel's body are specialized for generating electricity,and the strength of the shock it can deliver corresponds roughly to the length of its body.

当今时代是电气时代.人们对电灯、收音机、电视和电话早已司空见惯以致很难想象没有它们生活会变成什么样.当停电时,人们在摇曳不定的烛光下暗中摸索;因没有红绿灯的指示,汽车在道路上迟疑不前;冰箱也停止工作,导致食物变质.人们只是在两个世纪前一点才开始了解电的使用原理,自然界却显然在这方面经历过了数百万年.科学家不断发现许多生物世界里可能有益于人类的关于电的有趣秘密.所有生物细胞都会发出微小的电脉冲.当心脏跳动时,把它发出的脉冲记录下来就成了心电图,这可让医生了解心脏的工作状况.大脑也发出脑电波,这可在脑电图上记录下来.许多生物细胞发出的电流都是极微小的,小到要用灵敏仪器才能记录和测量.但一些动物的某些肌肉细胞能转化成一个个发电机,以致完全失去肌肉细胞的功能.这种细胞大量地连接在一起时产生的效果将是非常令人吃惊的.电鳗就是一种令人惊异的蓄电池.它可以在水中发出相当于800伏特电压电流(家庭用户的电压只有120伏特).在电鳗的身体里,多至五分之四的细胞都专门用来发电,而且发出的电流的强度大约和它身体的长度成正比

有关电的英语文章尽量从简,篇幅不要太大也不要太短,约150词左右即可.麻烦,尽快,. 有关电的英语文章尽量从简,篇幅不要太大也不要太短,约150词左右即可.麻烦,尽快,. 北宋是通过给辽、夏岁币来保持边境和平的,这种做法有何利弊?尽量浓缩一点,不要太大篇幅了,I'm very very thank you 英语的关于性别歧视的文章,篇幅不要太少, 寻一篇赞扬雷锋的文章篇幅要中等,不要太长,也不要太短.写的较感人... 求鼓励意志的文章!请各位帮忙找几篇鼓励意志的文章,最好是叙述人生哲理的.篇幅不要过长,尽量要短点! 寻求初一幽默,超简单演讲的英语话剧!难度低,篇幅中等,演讲时间约4-5分钟,幽默搞笑,通俗易懂的2人话剧.有多少来多少,演讲人数2人,多几个也不怕,主要给我来几个2人的话剧!篇幅不要太大,时 有关动物有灵性的故事篇幅不用太大,只要实用就行了, 求:简单的英语小短文,生词要少的,篇幅不要太大~50左右~大概初中水平最好有点趣味性的 求有关西餐习俗的英语文章,尽量简洁易懂. 有关幸福的英语文章!不要太长. 有关朱自清的故事越多越好 篇幅不要太长 急寻一篇关于昆虫的小故事,要有趣的.只要有趣就行,篇幅不要太大,就这些. 三山五岳是指的什么?说出具体省份不要太大篇幅,最好在100字以内。呵呵 加油! 推荐书或文章1、文章:文笔很好的,现当代作品,篇幅不要太长,不要求是名家的;2、小说:篇幅尽量短一点千万别太长,是整个人(女的)穿越到中国古代的那种,文笔要很好引用了很多古诗词 初中数学有关圆、三角函数的几何题 既然写演草纸上也是写,讲解只要跨度不太大,尽量不要省步骤就行~ 描写秋的英语文章篇幅小一点的 描写秋天的文章就可以了 描写秋的英语文章篇幅小一点的 描写秋天的文章就可以了