【听力】英语专业四级听写120篇,第20期:用种子榨油 Pressing Oil from Seeds

      PART I    DICTATION [15 MIN ]

      Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more.

      Please write the whole passage on ANSWER SHEET ONE. Now, listen to the passage.

      Pressing Oil from Seeds

      Oil is separated from seeds by using pressure. A machine called a press is often used. The first step in pressing the oil from seeds is to crush the seeds between two stones. A cloth container or bag is filled with the crushed seeds. Then the bag is hung up. Some of the oil will flow out of the bag and can be collected. But some oil will remain in the crushed seeds inside the bag. The easiest way to get the rest of the oil out is to place heavy rocks on the crushed material. Another method is to place several cloth bags on top of each other in a box. Then a long wooden stick is used to slowly push a heavy cover down on the bags. Great pressure is produced in this way. Much greater pressure can be produced by using a machine. The greater the pressure, the more oil will be produced.

      用种子榨油

      把油从种子里挤压出来,需要借助一定的外力。在此过程中,通常会用到一种叫做压榨机的机器。榨油的第一步是把种子放在两块石头之间进行挤压,然后将挤压后的种子装在布袋或布制的容器里,接着把布袋悬挂起来,油便从布袋中流出,可以将这些油收集起来。但是一些油仍然留在布袋里那些挤压过的种子中。将这些剩下的油弄出来的最简单的方式是用重石头压那些挤压过的种子。另一个方法是将几个布袋层层叠起来放在箱子里,然后用一根长长的木棍缓慢推动沉重的覆盖物以挤压这些布袋。用这种方式可以产生巨大的压力。我们还可以借助机械产生更大的压力。压力越大,榨出的油就越多。

      (来源:网络;编辑:Hautec)

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