练习材料：
Lesson 7 Too late
The plane was lateand detectives were waiting at the airport all morning. They were expecting avaluable parcel of diamonds from South Africa. A few hours earlier, someone hadtold the police that thieves would try to steal the diamonds. When the planearrived, some of the detectives were waiting inside the main building whileothers were waiting on the airfield. Two men took the parcel off the plane andcarried it into the Customs House. While two detectives were keeping guard atthe door, two others opened the parcel. To their surprise, the precious parcelwas full of stones and sand!
tuː leɪt
ðə pleɪn wɒz leɪt ænd dɪˈtɛktɪvz wɜː ˈweɪtɪŋ æt ði ˈeəpɔːt ɔːl ˈmɔːnɪŋ. ðeɪ wɜːr ɪksˈpɛktɪŋ ə ˈvæljʊəbl ˈpɑːsl ɒv ˈdaɪəməndz frɒm saʊθ ˈæfrɪkə. ə fjuː ˈaʊəz ˈɜːlɪə, ˈsʌmwʌn hæd təʊld ðə pəˈliːs ðæt θiːvz wʊd traɪ tuː stiːl ðə ˈdaɪəməndz. wɛn ðə pleɪn əˈraɪvd, sʌm ɒv ðə dɪˈtɛktɪvz wɜː ˈweɪtɪŋ ɪnˈsaɪd ðə meɪn ˈbɪldɪŋ waɪl ˈʌðəz wɜː ˈweɪtɪŋ ɒn ði ˈeəfiːld. tuː mɛn tʊk ðə ˈpɑːsl ɒf ðə pleɪn ænd ˈkærid ɪt ˈɪntuː ðə ˈkʌstəmz haʊs. waɪl tuː dɪˈtɛktɪvz wɜː ˈkiːpɪŋ gɑːd æt ðə dɔː, tuː ˈʌðəz ˈəʊpənd ðə ˈpɑːsl. tuː ðeə səˈpraɪz, ðə ˈprɛʃəs ˈpɑːsl wɒz fʊl ɒv stəʊnz ænd sænd!
任务配置：L0+L1+ L4
知识笔记：
单词：1、detective：侦探，2、parcel：包裹，邮包，3、airfield：机场，4、custom：风俗，习俗，customs：海关，5、guard：警卫，守卫，Keep guard at：在某某保持警惕，6、
音标：/ŋ/ 双唇微闭，舌尖抵住下龈，振动声带，使气息由鼻孔流出来。
练习感悟： 今天的文章，稍微要认真点，不过语调还是很难把握
