练习材料：

Lesson 55 Not a gold mine

Dreams of finding lost treasure almost came true recently. A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground. The machine was used in a cave near the seashore where--it is said--pirates used to hide gold. The pirates would often bury gold in the cave and then fail to collect it. Armed with the new machine, a search party went into the cave hoping to find buried treasure. The leader of the party was examining the soil near the entrance to the cave when the machine showed that there was gold under the ground. Very excited, the party dug a hole two feet deep. They finally found a small gold coin which was almost worthless. The party then searched the whole cave thoroughly but did not find anything except an empty tin trunk. In spite of this, many people are confident that 'The Revealer' may reveal something of value fairly soon.

nɑt ə goʊld maɪn

drimz ʌv ˈfaɪndɪŋ lɔst ˈtrɛʒər ˈɔlˌmoʊst keɪm tru ˈrisəntli. ə nu məˈʃin kɔld ðə rɪˈvilər hæz bɪn ɪnˈvɛntɪd ænd ɪt hæz bɪn juzd tu dɪˈtɛkt goʊld wɪʧ hæz bɪn ˈbɛrid ɪn ðə graʊnd. ðə məˈʃin wʌz juzd ɪn ə keɪv nɪr ðəˈsiˌʃɔr wɛr--ɪt ɪz sɛd--ˈpaɪrəts juzd tu haɪd goʊld. ðəˈpaɪrəts wʊd ˈɔfən ˈbɛri goʊld ɪn ðə keɪv ænd ðɛn feɪl tu kəˈlɛkt ɪt. ɑrmd wɪððə nu məˈʃin, ə sɜrʧˈpɑrti wɛnt ˈɪntu ðə keɪv ˈhoʊpɪŋ tu faɪnd ˈbɛrid ˈtrɛʒər. ðəˈlidər ʌv ðəˈpɑrti wʌz ɪgˈzæmɪnɪŋðə sɔɪl nɪr ði ˈɛntrəns tu ðə keɪv wɛn ðə məˈʃin ʃoʊd ðæt ðɛr wʌz goʊld ˈʌndər ðə graʊnd. ˈvɛri ɪkˈsaɪtɪd, ðəˈpɑrti dʌg ə hoʊl tu fit dip. ðeɪˈfaɪnəli faʊnd ə smɔl goʊld kɔɪn wɪʧ wʌz ˈɔlˌmoʊst ˈwɜrθləs. ðəˈpɑrti ðɛn sɜrʧt ðə hoʊl keɪv ˈθɜroʊli bʌt dɪd nɑt faɪnd ˈɛniˌθɪŋɪkˈsɛpt ən ˈɛmpti tɪn trʌŋk. ɪn spaɪt ʌv ðɪs, ˈmɛni ˈpipəl ɑr ˈkɑnfədənt ðæt ðə rɪˈvilər meɪ rɪˈvil ˈsʌmθɪŋʌv ˈvælju ˈfɛrli sun.

任务配置：L0+L4

知识笔记：

treasure 财宝

invent 发明

detect 探测

thoroughly 彻底地

trunk 行李箱

in spite of 尽管如此