2016英语专四听力dictation模拟练习(7)

2016-03-31 11:11:11来源:网络

2016英语专四听力dictation模拟练习(7)

  2016英语专四改革,听力部分dictation看似简单的从15个句群变成了10个,但是句子长度变长,所以考生们在考前要多练听力同时提高自己的注意力集中时长。

  Plastic

  We use plastic wrap to protect our foods. We put our garbagein plastic bags or plastic cans. We sit on plastic chairs, play withplastic toys, drink from plastic cups, and wash our hair withshampoo from plastic bottles!

  Plastic does not grow in nature. It is made by mixing certainthings together. We call it a produced or manufactured material.Plastic was first made in the 1860s from plants, such as wood and cotton. That plastic was soft andburned easily.

  The first modern plastics were made in the 1930s. Most clear plastic starts out as thick, black oil.That plastic coating inside a pan begins as natural gas.

  Over the years, hundreds of different plastics have been developed. Some are hard and strong.Some are soft and bendable. Some are clear. Some are many-colored. There is a plastic for almostevery need. Scientists continue to experiment with plastics. They hope to find even ways to usethem!

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