托福口语经典文章系列之电力Electricity

2017年11月16日17:32 来源：小站整理: 参与（2）阅读（4163）

摘要：托福口语的备考和考试当中，考生往往会准备一些模板以方便大家更好的做题，但是在复习的时候一些托福口语的经典真题及答案都是大家很好的复习材料。不知道大家对于些比较好的托福口语高分文章怎么看，小编认为这些资料对于你的托福口语复习非常有帮助。

托福口语备考过程中大家往往会用到一些素材或者模板之类的，其实一些优秀的托福口语范文也是非常不错的。不知道大家在平时的备考过程中收集到了哪些，今天小编在这里为大家整理了托福口语经典文章，希望对大家托福口语提分有帮助。

托福口语经典文章系列汇总：http://toefl.zhan.com/tfziliao63989.html

托福口语必背经典文章：电力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 million 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 cell 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 cell are linked together, the effects can be astonishing.

The electric eel is an amazing storage battery. It can seed a jolt of as much as eight hundred volts of electricity through the water in which it live. ( 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 length of its body.

以上就是小编为大家整理的托福口语备考必背的经典文章，大家一起来看看这些文章是如何获得高分的吧，希望这些可以帮助以大家广大考生。最后，小编预祝大家托福考试能取得理想的成绩。