托福听力黄金段子之生活段子：噪音影响

得听力者得托福，很多考生因为托福听力能力的薄弱使得整个托福考试的成绩都很差。对于托福听力的备考也有很多的方法，今天这里小编就为大家带来了托福听力黄金段子：噪音影响，希望对大家的托福备考有帮助。下面就跟小编一起来学习下吧。

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托福听力黄金段子：噪音影响

I'm grad to see so many of you here. We've become really alarmed over the health center by the number of students we are seeing, who are experiencing hearing loss. First, I want to go over some basic about hearing. Then we can take a look at our school environment and see if we can figure out some ways to protect hearing. The leading cause of preventable hearing loss is excessive noise. Too much moderate noise for a long time or some types of intense noise for even a short time can damage hearing. Loudness is measured in units called decibels. One decibel is the lowest sound that the average person can here. Sounds up to 80 decibels generally aren't harmful. That's noise like traffic on a busy street. But anything louder than 80 decibels, especially with continuous exposure, may eventually hurt your hearing. Once you are up to around 140 decibels, that's like a jet plane taking off, then you might even feel pain in your ears. And pains are sure sign that your hearing's at risk. Even one exposure to a really loud noise at close range can cause hearing loss. So what you need to do is limit your exposure to harmful levels. If you pass along this handout, we can take a look at the decibel level of some common campus sounds. Notice how loud those horns are that people take to football games. They are really dangerous if blown right behind you. Now, let's try to generate a list of damaging noises.

以上就是小编为大家带来的托福听力黄金段子：噪音影响，大家在托福备考的过程当中积累一些这样的段子，对于你的托福听力成绩提升会很有帮助。最后，小编预祝大家托福考试能取得理想的成绩。