今天，小编就带大家来了解一下：托福听力lecture历史类话题的关键要素，接下来就来看一看小编为大家整理的内容吧!
托福听力历史类话题关键要素三：时间
时间顺序也是关键要素。当然，大家可能会注意到，下面例子提到的具体的时间点貌似只有两个1890s 和1920s。但是总的来讲，历史类的文章，时间顺序是一件非常关键的事情，因为在讲到某个事物的发展总是会从前往后说，提醒一点的是，时间本身不重要，只要搞明白谁前谁后即可。具体例子如下：
So let's get back to when the steel guitar was first introduced in the United States. It was right after the Spanish-American war in the late 1890s. US sailors who were stationed in Hawaii—then a US territory—were very enamored with the music they heard there. Uh,Hawaiian music was based on the steel guitar I just described. Some sailors learned how to play the steel guitar and brought it home to the States. Before long,Hawaiian steel guitar music was all the rage in the mainland US. It actually had a strong influence on the development of several musical genres,rock ‘n' roll most notably,but also jazz and blues.
Anyway,by the 1920s,with the advent of the public dance movement,people were gathering in large groups to listen to steel guitar music. But they had trouble hearing it,especially in large public settings. As I mentioned,the instrument was played horizontally,on the lap. Since the strings faced upward,the sound was projected toward the ceiling rather than outward toward the audience. Something had to be done,because the music venues and the audience kept getting larger and larger.
托福听力历史类话题关键要素四：话题的特点&人物
一般这两点都是融合在一起的，例子：
Electrified guitars already existed by the time Les Paul came into the picture around 1940. What Paul did was experiment with ways of removing the distortions and he succeeded. He designed a guitar with a solid body that relied solely on electronics. Paul's solid body eliminated the vibrations,and thus the distortions.
此处教授讲到Les Paul此人对于电吉他的修改，使得电吉他有了一个”solid body” ， 减少了声音失真的状况。大家尤其要注意，如果一篇文章出现了好几个人和一个事物的好几个特点的时候，一定要警觉起来，区分清楚哪个特点，属于哪个人物，这通常都是要出难题的前兆。
以上就是小编要和大家分享的托福听力lecture历史类话题的关键要素，希望大家能够喜欢小编带来的这篇文章!
