四六级

四级听力mp3在线听第4套短新闻2

时间:2017-02-22 来源:文都网校 浏览: 分享:

      自2016年起,英语四级听力改革,将考试题型改为:3篇短新闻、2篇长对话和3篇短文。小编将为大家提供新题型的模拟练习题,这是四级听力mp3在线听第4套短新闻2,希望能更好地帮助大家进行2017年6月英语四级备考

    四级听力mp3在线听第4套短新闻2.mp3

      Questions 3 and 4 will be based on thefollowing news item.

      3

      A.Climate change.

      B.Crop pests.

      C.Bacteria.

      D.Insects.

      4

      A.12%.

      B.23%.

      C.8%.

      D.50%.

      News Item Two

      The researchers recently looked at more than 600 crop pests from around the world.

      These included fungi, such as wheat rust, which is devastating harvests in Africa and the Middle East; insects like the mountain pine beetle that's destroying trees in the U.S.; as well as bacteria, viruses and microscopic worms.

      They found that over the past 50 years, these destructive species have been on the move. On average, they're spreading 3km every year, shifting north and south towards the poles.

      The scientists say this correlates with warming temperatures, allowing the pests to take hold in areas that were once too cold for them to live in. Currently, between 10% and 20% of the world's crops are lost to pests— and the team warns that rising global temperatures could make the problem worse. The researchers say that improved surveillance of the problem is needed.

      3.What is the news report mainly about?

      4.What is the probable proportion of crop lost to pests?

      参考答案:

      【小题3】B

      【小题4】A

      习题解析:

      【小题3】新闻首句提到The researchers recently looked at more than 600 crop pests from around the world,即科学家最近研究了世界各地的600多种农作物害虫,下文介绍了科学家研究的具体内容,由此可见,新闻主要讲的是农作物害虫,故选B。

      【小题4】新闻中提到Currently, between 10% and 20% of the world's crops are lost to pests,由此可知,目前有10%到20%的全球农作物被害虫毁掉了,只有选项A中的数值在此范围,故选A。

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