练习材料：
Lesson 51 Reward for virtue
My friend, Hugh, has always been fat, but things got so bad recently that he decided to go on a diet. He began his diet a week ago. First of all, he wrote out a long list of all the foods which were forbidden. The list included most of the things Hugh loves: butter, potatoes, rice, beer, milk, chocolate, and sweets. Yesterday I paid him a visit. I rang the bell and was not surprised to see that Hugh was still as fat as ever. He led me into his room and hurriedly hid a large parcel under his desk. It was obvious that he was very embarrassed. When I asked him what he was doing, he smiled guiltily and then put the parcel on the desk. He explained that his diet was so strict that he had to reward himself occasionally. Then he showed me the contents of the parcel. It contained five large bars of chocolate and three bags of sweets!
rɪˈwɔrd fɔr ˈvɜrʧu
maɪ frɛnd, hju, hæz ˈɔlˌweɪz bɪn fæt, bʌt θɪŋz gɑt soʊ bæd ˈrisəntli ðæt hi ˌdɪˈsaɪdɪd tu goʊɑn əˈdaɪət. hi bɪˈgæn hɪz ˈdaɪət ə wik əˈgoʊ. fɜrst ʌv ɔl, hi roʊt aʊt ə lɔŋ lɪst ʌv ɔl ðə fudz wɪʧ wɜr ˈfɔrbɪdən. ðə lɪst ɪnˈkludəd moʊst ʌv ðəθɪŋz hju lʌvz: ˈbʌtər, pəˈteɪtoʊz, raɪs, bɪr, mɪlk, ˈʧɔklət, ænd swits. ˈjɛstərˌdeɪ aɪ peɪd hɪm əˈvɪzɪt. aɪ ræŋ ðə bɛl ænd wʌz nɑt sərˈpraɪzd tu si ðæt hju wʌz stɪl æz fæt æz ˈɛvər. hi lɛd mi ˈɪntu hɪz rum ænd ˈhʌridli hɪd ə lɑrʤˈpɑrsəl ˈʌndər hɪz dɛsk. ɪt wʌz ˈɑbviəs ðæt hi wʌz ˈvɛri ɪmˈbɛrəst. wɛn aɪ æskt hɪm wʌt hi wʌz ˈduɪŋ, hi smaɪld ˈgɪltɪli ænd ðɛn pʊt ðəˈpɑrsəl ɑn ðə dɛsk. hi ɪkˈspleɪnd ðæt hɪz ˈdaɪət wʌz soʊ strɪkt ðæt hi hæd tu rɪˈwɔrd hɪmˈsɛlf əˈkeɪʒənəli. ðɛn hi ʃoʊd mi ðəˈkɑntɛnts ʌv ðəˈpɑrsəl. ɪt kənˈteɪnd faɪv lɑrʤ bɑrz ʌv ˈʧɔklət ænd θri bægz ʌv swits!
任务配置：L0+L4
知识笔记：
reward 奖励
forbid 禁止
guiltily 内疚地
strict 严格的
occasionally 偶尔
on a diet 节食；减肥
as … as ever 一如既往
