|
SAT考试的一个主要组成部分就是SAT写作，而写作也常常是一件令人头疼的事情，尤其在文章中需要举例说明问题的时候，很多学生往往很苦恼，接下来我们来看SAT写作中常用的例证素材科学发明领域发生的重大事件。 Early1300s: Gunpowder first used in Europe Although gunpowder is believed to have been invented in China as early as the ninth century, it wasnt until the early 1300s that it was first used in battle in Europe. A relatively simple mixture of charcoal, sulfur, and saltpeter, gunpowder has been making the worlds wars more deadly ever since. 1522:First circumnavigation of the globe completed In 1519, Ferdinand Magellan and a crew of 237 men and five ships set out on a voyage to claim the Spice Islands as the property of Spain. Although Magellan himself was killed while trying to convert a native Philippine chief to Christianity in 1521, one ship and the remainder of his crew, by then eighteen men, completed the voyage around the world and returned to Spain on September 8, 1522. 1859:Darwins Origin of Species Charles Darwin shocked the world with his theory of evolution as proposed in Origin of Species. He explained that, over time, species adapt to their environment in order to survive and then pass along these acquired traits to future generations in a process known as natural selection. Although his ideas are widely accepted today, the notion that species could have evolved from an entirely different species caused outrage from those believing that all living creatures were created by God. | 
