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2019年专四听力50篇音频（附听力原文）:第三十篇

2019-01-17 10:58:45来源：网络

2019年专四听力50篇音频（附听力原文）:第三十篇

　　2019年专四听力题型为听写dictation、talk讲座和Conversations(长对话)，

专四听写dictation题是很多考生都比较畏惧的题型，得分率在听力各题型中往往最低。针对听写题，比较有效的训练方法是每1~2天做一次“精听”听写训练。下面新东方在线英语专四频道为大家整理了2019年专四听力50篇音频(附听力原文)，希望大家多听多练提高英语专四听力水平，顺利通过专四。

2019专四听力50篇音频汇总

　　Population Growth

　　It is well-known that there has been a drastic increase in world population. But it is probably less well-known that the extinction rate of wildlife species is experiencing a parallel trend.

　　Take the United States for instance. In 1990, U.S. population reached an unprecedented level of 250 million, which is approximately 250 times of that of 1800. On the other hand, wildlife species are disappearing from the country at an alarming rate. By 1900, about 70 wildlife species would never be seen in U. S. We are fully justified in declaring that the explosive population growth has had an adverse effect on the survival of wildlife species and will be a constant threat to the wildlife resources if no immediate actions are taken.

　　Nothing has ever equaled the magnitude and speed with which the human spedes is altering the physical and chemical world. It has been demolishing the environment we are living in. (152 words)

　　Useful Words and Expressions:

　　drastic adj.激烈的

　　take drastic measures采取果断措施「激烈手段」

　　a drastic debate激烈的辩论

　　make drastic change 做彻底的改变

　　species n.种类

　　extinction n.消失，消灭

　　Paralell adj.平行的，相同的，类似的

　　trend n.倾向，趋势

　　unprecedented adj.空前的

　　approximately adv.近似地，大约

　　justify v.证明……是正当的

　　explosive adj.爆炸(性)的

　　magnitude n.大小，数量，量级

　　alter v.改变

　　The weather alters almost daily.天气几乎天天变化。

　　demolish vt.毁坏，破坏

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