练习材料：
In 1929, three years after his flight overthe North Pole, the American explorer, R. E. Byrd, successfully flew over the South Pole for the first time. Though, at first, Byrd and his men were able to take a great many photographs of the mountains that lay below, they soon ran into serious trouble. At one point, it seemed certain that their plane would crash. It could only get over the mountains if it rose to 10,000 feet. Byrd at once ordered his men to throw out two heavy food sacks. The plane was then able to rise and it cleared the mountains by 400 feet. Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight. The aircraft was able to fly over the endless white plains without difficulty.
/ɪn/ 1929, /θriː/ /jɪəz/ /ˈɑːftə/ /hɪz/ /flaɪt/ /ˈəʊvə/ /ðə/ /nɔːθ/ /pəʊl/, /ði/ /əˈmɛrɪkən/ /ɪksˈplɔːrə/, /ɑː/. /iː/. /bɜːd/, /səkˈsɛsfʊli/ /fluː/ /ˈəʊvə/ /ðə/ /saʊθ/ /pəʊl/ /fɔː/ /ðə/ /fɜːst/ /taɪm/. /ðəʊ/, /æt/ /fɜːst/, /bɜːd/ /ænd/ /hɪz/ /mɛn/ /wɜːr/ /ˈeɪbl/ /tuː/ /teɪk/ /ə/ /greɪt/ /ˈmɛni/ /ˈfəʊtəgrɑːfs/ /ɒv/ /ðə/ /ˈmaʊntɪnz/ /ðæt/ /leɪ/ /bɪˈləʊ/, /ðeɪ/ /suːn/ /ræn/ /ˈɪntuː/ /ˈsɪərɪəs/ /ˈtrʌbl/. /æt/ /wʌn/ /pɔɪnt/, /ɪt/ /siːmd/ /ˈsɜːtn/ /ðæt/ /ðeə/ /pleɪn/ /wʊd/ /kræʃ/. /ɪt/ /kʊd/ /ˈəʊnli/ /gɛt/ /ˈəʊvə/ /ðə/ /ˈmaʊntɪnz/ /ɪf/ /ɪt/ /rəʊz/ /tuː/ 10,000 /fiːt/. /bɜːd/ /æt/ /wʌns/ /ˈɔːdəd/ /hɪz/ /mɛn/ /tuː/ /θrəʊ/ /aʊt/ /tuː/ /ˈhɛvi/ /fuːd/ /sæks/. /ðə/ /pleɪn/ /wɒz/ /ðɛn/ /ˈeɪbl/ /tuː/ /raɪz/ /ænd/ /ɪt/ /klɪəd/ /ðə/ /ˈmaʊntɪnz/ /baɪ/ 400 /fiːt/. /bɜːd/ /naʊ/ /njuː/ /ðæt/ /hiː/ /wʊd/ /biː/ /ˈeɪbl/ /tuː/ /riːʧ/ /ðə/ /saʊθ/ /pəʊl/ /wɪʧ/ /wɒz/ 300 /maɪlz/ /əˈweɪ/, /fɔː/ /ðeə/ /wɜː/ /nəʊ/ /mɔː/ /ˈmaʊntɪnz/ /ɪn/ /saɪt/. /ði/ /ˈeəkrɑːft/ /wɒz/ /ˈeɪbl/ /tuː/ /flaɪ/ /ˈəʊvə/ /ði/ /ˈɛndlɪs/ /waɪt/ /pleɪnz/ /wɪˈðaʊt/ /ˈdɪfɪkəlti/.
任务配置：L0+L4
知识笔记：
South pole 南极
Sack 麻布袋
Clear the mountain 飞跃山峰
It could only get over the mountains if it rose to 10,000 feet. 只有在飞至10000英尺的高度，它才能飞过这些山头。
练习感悟： 继续补作业
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