练习材料：
Lesson 45 A clear conscience
The whole village soon learnt that a large sum of money had been lost. Sam Benton, the local butcher, had lost his wallet while taking his savings to the post-office. Sam was sure that the wallet must have been found by one of the villagers, but it was not returnedto him. Three months passed, and then one morning, Sam found his wallet outside his front door. It had been wrapped up in newspaper and it contained half the money he had lost, together with a note which said: 'A thief, yes, 'but only 50 per cent a thief!' Two months later, some more money was sent to Sam with another note:' Only 25 per cent a thief now!' In time, all Sam's money was paid back in this way. The last note said:' I am 100 per cent honest now!'
ə klɪr ˈkɑnʃəns
ðə hoʊl ˈvɪlɪʤ sun lɜrnt ðæt ə lɑrʤ sʌm ʌv ˈmʌni hæd bɪn lɔst. sæm ˈbɛntən, ðəˈloʊkəl ˈbʊʧər, hæd lɔst hɪz ˈwɔlət waɪl ˈteɪkɪŋ hɪz ˈseɪvɪŋz tu ðə poʊst-ˈɔfɪs. sæm wʌz ʃʊr ðæt ðəˈwɔlət mʌst hæv bɪn faʊnd baɪ wʌn ʌv ðəˈvɪlɪʤərz, bʌt ɪt wʌz nɑt rɪˈtɜrnd tu hɪm. θri mʌnθs pæst, ænd ðɛn wʌn ˈmɔrnɪŋ, sæm faʊnd hɪz ˈwɔlət ˈaʊtˈsaɪd hɪz frʌnt dɔr. ɪt hæd bɪn ræpt ʌp ɪn ˈnuzˌpeɪpər ænd ɪt kənˈteɪnd hæf ðəˈmʌni hi hæd lɔst, təˈgɛðər wɪðə noʊt wɪʧ sɛd: əθif, jɛs, bʌt ˈoʊnli 50 pɜr sɛnt ə θif!' tu mʌnθs ˈleɪtər, sʌm mɔr ˈmʌni wʌz sɛnt tu sæm wɪð əˈnʌðər noʊt:' ˈoʊnli 25 pɜr sɛnt ə θif naʊ!' ɪn taɪm, ɔl sæmz ˈmʌni wʌz peɪd bæk ɪn ðɪs weɪ. ðə læst noʊt sɛd:' aɪ æm 100 pɜr sɛnt ˈɑnəst naʊ!'
任务配置：L0+L4
知识笔记：
clear 无罪的；干净的
conscience 良心
wrap up 包起来；总结
in time 最终；最后
