听力材料
They plunged into the lake, and after loading their gear on an inflatable rubber dinghy, let the current carry them to the other side. To protect themselves from the icy water, they had to wear special rubber suits. At the far end of the lake, they came to huge piles of rubble which had been washed up by the water. In this part of the cave, they could hear an insistent booming sound which they found was caused by a small waterspout shooting down into a pool from the roof of the cave. Squeezing through a cleft in the rocks, the pot-holers arrived at an enormous cavern, the size of a huge concert hall. After switching on powerful arc lights, they saw great stalagmites -- some of them over 40 feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof. Round about, piles of lime-stone glistened in all the colours of the rainbow. In the eerie silence of the cavern, the only sound that could be heard was made by water which dripped continuously from the high dome above them。
ðeɪ plʌnʤd ˈɪntuː ðə leɪk, ænd ˈɑːftə ˈləʊdɪŋ ðeə gɪər ɒn ən ɪnˈfleɪtəbl ˈrʌbə ˈdɪŋgi, lɛt ðə ˈkʌrənt ˈkæri ðɛm tuː ði ˈʌðə saɪd. tuː prəˈtɛkt ðəmˈsɛlvz frɒm ði ˈaɪsi ˈwɔːtə, ðeɪ hæd tuː weə ˈspɛʃəl ˈrʌbə sjuːts. æt ðə fɑːr ɛnd ɒv ðə leɪk, ðeɪ keɪm tuː hjuːʤ paɪlz ɒv ˈrʌbl wɪʧ hæd biːn wɒʃt ʌp baɪ ðə ˈwɔːtə. ɪn ðɪs pɑːt ɒv ðə keɪv, ðeɪ kʊd hɪər ən ɪnˈsɪstənt ˈbuːmɪŋ saʊnd wɪʧ ðeɪ faʊnd wɒz kɔːzd baɪ ə smɔːl ˈwɔːtəspaʊt ˈʃuːtɪŋ daʊn ˈɪntuː ə puːl frɒm ðə ruːf ɒv ðə keɪv. ˈskwiːzɪŋ θruː ə klɛft ɪn ðə rɒks, ðə pɒt-ˈhəʊləz əˈraɪvd æt ən ɪˈnɔːməs ˈkævən, ðə saɪz ɒv ə hjuːʤ ˈkɒnsə(ː)t hɔːl. ˈɑːftə ˈswɪʧɪŋ ɒn ˈpaʊəfʊl ɑːk laɪts, ðeɪ sɔː greɪt ˈstæləgmaɪts -- sʌm ɒv ðɛm ˈəʊvə 40 fiːt haɪ -- ˈraɪzɪŋ ʌp laɪk triː-trʌŋks tuː miːt ðə ˈstæləktaɪts səsˈpɛndɪd frɒm ðə ruːf. raʊnd əˈbaʊt, paɪlz ɒv laɪm-stəʊn ˈglɪsnd ɪn ɔːl ðə ˈkʌləz ɒv ðə ˈreɪnbəʊ. ɪn ði ˈɪəri ˈsaɪləns ɒv ðə ˈkævən, ði ˈəʊnli saʊnd ðæt kʊd biː hɜːd wɒz meɪd baɪ ˈwɔːtə wɪʧ drɪpt kənˈtɪnjʊəsli frɒm ðə haɪ dəʊm əˈbʌv ðɛm.
任务配置L0+L4
知识点:Everest珠穆朗玛峰；an inflatable rubber dinghy充气的橡皮艇；current 水流；icy water 冰冷的湖水；
学习感悟：
科普短文生词相对较多，读过后比较容易忘，可迁移性弱，各种类型的文都需要接触，努力吧。
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