练习材料：

Lesson 13-1 The search for oil

ˈlɛsn 13-1 ðə sɜːʧ fɔːr ɔɪl

  The deepest holes of all made for oil, and they go down to as much as 25,0000 feet. But we not need to send men down to get the oil our, as we must with other mineral deposits. The holes are only borings, less than a foot in diameter. My particular experience is largely in oil, and the search for oil has done more to improve deep drilling than any other mining activity. When is has been decided where we are going to drill, we put up at the surface an oil derrick. It has to be tall because it is like a giant block and tackle, and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.

ðə ˈdiːpɪst həʊlz ɒv ɔːl meɪd fɔːr ɔɪl, ænd ðeɪ gəʊ daʊn tuː æz mʌʧ æz 25,0000 fiːt. bʌt wiː nɒt niːd tuː sɛnd mɛn daʊn tuː gɛt ði ɔɪl ˈaʊə, æz wiː mʌst wɪð ˈʌðə ˈmɪnərəl dɪˈpɒzɪts. ðə həʊlz ɑːr ˈəʊnli ˈbɔːrɪŋz, lɛs ðæn ə fʊt ɪn daɪˈæmɪtə. maɪ pəˈtɪkjʊlər ɪksˈpɪərɪəns ɪz ˈlɑːʤli ɪn ɔɪl, ænd ðə sɜːʧ fɔːr ɔɪl hæz dʌn mɔː tuː ɪmˈpruːv diːp ˈdrɪlɪŋ ðæn ˈɛni ˈʌðə ˈmaɪnɪŋ ækˈtɪvɪti. wɛn ɪz hæz biːn dɪˈsaɪdɪd weə wiː ɑː ˈgəʊɪŋ tuː drɪl, wiː pʊt ʌp æt ðə ˈsɜːfɪs ən ɔɪl ˈdɛrɪk. ɪt hæz tuː biː tɔːl bɪˈkɒz ɪt ɪz laɪk ə ˈʤaɪənt blɒk ænd ˈtækl, ænd wiː hæv tuː ˈləʊər ˈɪntuː ðə graʊnd ænd hɔːl aʊt ɒv ðə graʊnd greɪt lɛŋθs ɒv drɪl paɪp wɪʧ ɑː rəʊˈteɪtɪd baɪ ən ˈɛnʤɪn æt ðə tɒp ænd ɑː ˈfɪtɪd wɪð ə ˈkʌtɪŋ bɪt æt ðə ˈbɒtəm.

在所有洞穴中，为寻找石油所钻出的洞是最深的，这些洞可深达25,000英尺。但是，我们不必像开采其他矿藏那样，把人送到地下去把石油取出。这些洞只不过是一些钻孔，直径不到1英尺。我是专门搞石油的，寻找石油比其他任何采矿业对改进钻探作的贡献都要大。当确定钻孔地点后，我们就在那里竖起一个井架。井架必须很高，因为它像一个巨型滑轮组。我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

任务配置：L0、L3、L4

知识笔记：

单词与短语

at the top顶端

at the bottom底部

sh has done more to improve sth than any other sth某事比其他任何...对改进某事作的贡献都要大

练习感悟：不熟悉的领域，复述出来内容寡淡。