练习材料：
Lesson48 Did you want to tell me something?
Dentists alwaysask questions when it is impossible for you to answer. My dentist had justpulled out one of my teeth and had told me to rest for a while. I tried to saysomething, but my mouth was full of cotton-wool. He knew I collected matchboxes and asked me whether my collection was growing. He then asked me how my brotherwas and whether I liked my new job in London. In answer to these questions Ieither nodded or made strange noises. Meanwhile, my tongue was busy searchingout the hole where the tooth had been. I suddenly felt very worried, but couldnot say anything. When the dentist at last removed the cotton-wool from mymouth, I was able to tell him that he had pulled out the wrong tooth.
ˈdɛntɪsts ˈɔːlweɪzɑːsk ˈkwɛsʧənz wɛn ɪt s ɪmˈpɒsəbl fə jʊ tʊ ˈɑːnsə. maɪ ˈdɛntɪst həd ʤəst pʊld aʊt wʌn əv maɪ tiːθ ənd həd təʊld mi tə rɛst fər ə waɪl. aɪ traɪd tə seɪ ˈsʌmθɪŋ, bət maɪ maʊθ wəz fʊl əv ˈkɒtn-wʊl. hi njuː aɪ kəˈlɛktɪd mæʧ ˈbɒksɪz ənd ɑːskt mi ˈwɛðə maɪ kəˈlɛkʃən wəz ˈgrəʊɪŋ. hi ðɛn ɑːskt mi haʊ maɪ ˈbrʌðə wəz ənd ˈwɛðər aɪ laɪkt maɪ njuː ʤɒb ɪn ˈlʌndən. ɪn ˈɑːnsə tə ðiːz ˈkwɛsʧənz aɪ ˈaɪðə ˈnɒdɪd ɔː meɪd streɪnʤ ˈnɔɪzɪz. ˈmiːnˈwaɪl, maɪ tʌŋ wəz ˈbɪzi ˈsɜːʧɪŋ aʊt ðə həʊl weə ðə tuːθ həd biːn. aɪ ˈsʌdnli fɛlt ˈvɛri ˈwʌrid, bət kəd nɒt seɪ ˈɛnɪθɪŋ. wɛn ðə ˈdɛntɪst ət lɑːst rɪˈmuːvd ðə ˈkɒtn-wʊl frəm maɪ maʊθ, aɪ wəz ˈeɪbltə tɛl ɪm ðət hi həd pʊld aʊt ðə rɒŋ tuːθ.
任务配置：L0+L1+L4
知识笔记：
单词：1、cotton-wool：棉絮，2、nod：点头，
音标： /tr/ 舌尖抵住上齿，作好发“t”的姿势，气流冲破阻碍，发出短促的“t”音后，紧接着就发“r”这摩擦音。
练习感悟： 语速快就是难读好，舌头都快读打结了。
