练习材料：
Lesson 21 Mad or not?
Aeroplanes are slowly driving me mad. I live near an airport and passing planes can be heard night and day. The airport was built years ago, but for some reason it could not be used then. Last year, however, it came into use. Over a hundred people must have been driven away from their homes by the noise. I am one of the few people left. Sometimes I think this house will be knocked down by a passing plane. I have been offered a large sum of money to go away, but I am determined to stay here. Everybody says I must be mad and they are probably right.
mædɔr nɑt?
ˈerəˌpleın ɑrˈsloʊliˈdraɪvɪŋmi mæd. aɪlɪv nɪrənˈɛrˌpɔrt ændˈpæsɪŋ pleɪnz kæn bi hɜrd naɪt ænd deɪ. ðiˈɛrˌpɔrt wʌz bɪlt jɪrzəˈgoʊ, bʌt fɔr sʌmˈrizənɪt kʊd nɑt bi juzd ðɛn. læst jɪr,ˌhaʊˈɛvər,ɪt keɪmˈɪntu juz.ˈoʊvərəˈhʌndrədˈpipəl mʌst hæv bɪnˈdrɪvənəˈweɪfrʌmðɛr hoʊmz baɪðənɔɪz. aɪæm wʌnʌv ðəfjuˈpipəl lɛft.ˈsʌmˌtaɪmz aɪθɪŋk ðɪs haʊs wɪl bi nɑkt daʊn baɪəˈpæsɪŋpleɪn. aɪhæv bɪnˈɔfərdəlɑrʤsʌmʌvˈmʌni tu goʊəˈweɪ, bʌt aɪæm dɪˈtɜrmɪnd tu steɪhir.ˈɛvriˌbɑdi sɛz aɪmʌst bi mædændðeɪɑrˈprɑbəbli raɪt.
任务配置：L0+L4
知识笔记：
slowly driving me mad 慢慢地让我变得疯狂
night and day 日夜不断
for some reason 出于某些原因
come into use 投入使用
练习感悟：
1.之前读过的单词出现，但是太久没有复习就忘记怎么读了。
2.之后看能不能根据音频来注意句子的语调和轻重音的处理。
3.注意梅花音，会没发到位，如：passing
