练习材料：

An earthquake comes like a thief in the night, without warning. It was necessary, therefore, to invent instruments that neither slumbered nor slept. Some devices were quite simple. One, for instance, consisted of rods of various lengths and thicknesses which would stand up end like ninepins. When a shock came, it shook the rigid table upon which these stood. If it were gentle, only the more unstable rods fell. If it were severe, they all fell. Thus the rods, by falling, and by the direction in which they fell, recorded for the slumbering scientist the strength of a shock that was too weak to waken him, and the direction from which it came.

/ən/ /ˈɜrθˌkweɪk/ /kʌmz/ /laɪk/ /ə/ /θif/ /ɪn/ /ðə/ /naɪt/, /wɪˈθaʊt/ /ˈwɔrnɪŋ/. /ɪt/ /wʌz/ /ˈnɛsəˌsɛri/, /ˈðɛrˌfɔr/, /tu/ /ɪnˈvɛnt/ /ˈɪnstrəmənts/ /ðæt/ /ˈniðər/ /ˈslʌmbərd/ /nɔr/ /slɛpt/. /sʌm/ /dɪˈvaɪsəz/ /wɜr/ /kwaɪt/ /ˈsɪmpəl/. /wʌn/, /fɔr/ /ˈɪnstəns/, /kənˈsɪstəd/ /ʌv/ /rɑdz/ /ʌv/ /ˈvɛriəs/ /lɛŋkθs/ /ænd/ /ˈθɪknəsɪz/ /wɪʧ/ /wʊd/ /stænd/ /ʌp/ /ɛnd/ /laɪk/ /'naɪn,pɪnz/. /wɛn/ /ə/ /ʃɑk/ /keɪm/, /ɪt/ /ʃʊk/ /ðə/ /ˈrɪʤəd/ /ˈteɪbəl/ /əˈpɑn/ /wɪʧ/ /ðiz/ /stʊd/. /ɪf/ /ɪt/ /wɜr/ /ˈʤɛntəl/, /ˈoʊnli/ /ðə/ /mɔr/ /ənˈsteɪbəl/ /rɑdz/ /fɛl/. /ɪf/ /ɪt/ /wɜr/ /səˈvɪr/, /ðeɪ/ /ɔl/ /fɛl/. /ðʌs/ /ðə/ /rɑdz/, /baɪ/ /ˈfɑlɪŋ/, /ænd/ /baɪ/ /ðə/ /dəˈrɛkʃən/ /ɪn/ /wɪʧ/ /ðeɪ/ /fɛl/, /rəˈkɔrdəd/ /fɔr/ /ðə/ /ˈslʌmbərɪŋ/ /ˈsaɪəntɪst/ /ðə/ /strɛŋkθ/ /ʌv/ /ə/ /ʃɑk/ /ðæt/ /wʌz/ /tu/ /wik/ /tu/ /ˈweɪkən/ /hɪm/, /ænd/ /ðə/ /dəˈrɛkʃən/ /frʌm/ /wɪʧ/ /ɪt/ /keɪm/.

任务配置：L0+L1+L4

知识笔记：

1.音标：

/ŋ/：length,strength,sing,drink

发音规律基本与/n/一致，不过，舌尖不抵住下齿，而是舌后根抵住软腭。

2.词汇：

*a thief in the night 夜间的小偷

*without warning 没有预警

*it is necessery to do ......有必要做

*instrument n.仪器

*slumber v.打盹

*for instance 例如

*consist of 由......组成

*rod n.木棒

*thickness 粗细

*ninepins 九柱戏

*shock n.地震

*shake-shook-shaken v.震动

*rigid table 坚硬的桌子

*gentle adj.轻微的

*severe adj.剧烈的

练习感悟：

1.今天在练习length这个音时，感觉和原声音频有些差异。听了几遍，自己也试着模仿，我原以为是我读/ŋ/这个音有些不到位。结果发现是/ɛ/没发到位，特别是两个音连在一起读时，整个下巴稍微比读/ɛ/时要稍稍向下一些。因为/ŋ/这个音有抵住软腭，且时间稍微比读单个的/ŋ/稍长一些。

2.文章里把地震说成是夜间的小偷也太形象了吧！