练习材料：
Lesson 48 Did you want to tell me something?
Dentists always ask questions when it is impossible for you to answer. My dentist had just pulled out one of my teeth and had told me to rest for a while. I tried to say something, but my mouth was full of cotton-wool. He knew I collected match boxes and asked me whether my collection was growing. He then asked me how my brother was and whether I liked my new job in London. In answer to these questions I either nodded or made strange noises. Meanwhile, my tongue was busy searching out the hole where the tooth had been. I suddenly felt very worried, but could not say anything. When the dentist at last removed the cotton-wool from my mouth, I was able to tell him that he had pulled out the wrong tooth.
dɪd ju wɑnt tu tɛl mi ˈsʌmθɪŋ?
ˈdɛntɪsts ˈɔlˌweɪz æsk ˈkwɛsʧənz wɛn ɪt ɪz ɪmˈpɑsəbəl fɔr ju tu ˈænsər. maɪˈdɛntɪst hæd ʤʌst pʊld aʊt wʌn ʌv maɪ tiθænd hæd toʊld mi tu rɛst fɔr ə waɪl. aɪ traɪd tu seɪˈsʌmθɪŋ, bʌt maɪ maʊθ wʌz fʊl ʌv ˈkɑtən-wʊl. hi nu aɪ kəˈlɛktəd mæʧˈbɑksɪz ænd æskt mi ˈwɛðər maɪ kəˈlɛkʃən wʌz ˈgroʊɪŋ. hi ðɛn æskt mi haʊ maɪˈbrʌðər wʌz ænd ˈwɛðər aɪ laɪkt maɪ nu ʤɑb ɪn ˈlʌndən. ɪn ˈænsər tu ðiz ˈkwɛsʧənz aɪˈiðər ˈnɑdɪd ɔr meɪd streɪnʤˈnɔɪzɪz. ˈminˌwaɪl, maɪ tʌŋ wʌz ˈbɪzi ˈsɜrʧɪŋ aʊt ðə hoʊl wɛr ðətuθ hæd bɪn. aɪˈsʌdənli fɛlt ˈvɛri ˈwɜrid, bʌt kʊd nɑt seɪˈɛniˌθɪŋ. wɛn ðəˈdɛnɪst æt læst riˈmuvd ðəˈkɑtən-wʊl frʌm maɪ maʊθ, aɪ wʌz ˈeɪbəl tu tɛl hɪm ðæt hi hæd pʊld aʊt ðə rɔŋ tuθ.
任务配置：L0+L4
知识笔记：
nod 点头
meanwhile 同时
tongue 舌头
pull out 拔牙
cotton wool 药棉
in answer to 作为……的回答
练习感悟：
注意cotton、wool、match、collected、noises、hole、pull、full的发音。
