练习材料：
Lesson 7 Too late
The plane was late and detectives werewaiting at the airport all morning. They were expecting a valuable parcel ofdiamonds from South Africa. A few hours earlier, someone had told the policethat thieves would try to steal the diamonds. When the plane arrived, some ofthe detectives were waiting inside the main building while others were waitingon the airfield. Two men took the parcel off the plane and carried it into theCustoms House. While two detectives were keeping guard at the door, two othersopened the parcel. To their surprise, the precious parcel was full of stonesand sand!
任务配置：L0+L4
知识笔记：
ˈlɛsn 7 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!
练习感悟：
连读、弱读、语调。Two men took the parcel off the plane，在off前要断句，老是忘记。
