托福写作辅导：electricity

英语自学网

　　托福写作主要考察学生对词汇、语法的掌握，以及逻辑和结构构架能力，一篇好的托福写作范文能够帮助同学们抓住托福写作的得分点，并能给大家提供提供高分词汇和句式。下面，我们就来看一篇托福写作范文：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.
        　　以上是一篇托福写作范文，希望同学们从高分词汇、句式和构架方式等多方面来参考分析，照搬照抄是大忌，灵活演化才是托福写作范文运用的诀窍所在。