2021년 3월 모의_[ 고1 ]_30번

Anne숑 · [ 고1 ] [ 2021 3월 ] 30번

❶  When the price of something fundamental drops greatly, the whole world can change.

 

 

 

❷ Consider light. 

    Chances are you are reading this sentence under some kind of artificial light.

                                 

❸   Moreover, you probably never thought about whether using artificial light for reading was worth it.

 

❹   Light is so cheap that you use it without thinking.

 

 

 

 

❺   But in the early 1800s, it would have cost you four hundred times what you are paying now for the same amount of light.

 

❻  At that price, you would notice the cost and would think twice before using artificial light to read a book.

 

❼  The drop in the price of light lit up the world.

 

❽  Not only did it turn night into day, but it allowed us to live and work in big buildings that natural light could not enter.

 

❾  Nearly nothing we have today would be possible if the cost of artificial light had not dropped to almost nothing.