练习材料：
NCE--第四册
Lesson 18-3 Porpoises
This is not easy, and may require two porpoises working together. In another game, as the turtle swims across the oceanarium, the first porpoise swoops down from above and butts his shell with his belly. This knocks the turtle down several feet. He no sooner recovers his equilibrium than the next porpoise comes along and hits him another crack. Eventually the turtle has been butted all the way down to the floor of the tank. He is now satisfied merely to try to stand up, but as soon as he does so a porpoise knocks him flat. The turtle at last gives up by pulling his feet under his shell and the game is over.
[ðɪs] [ɪz] [nɒt] [ˈiːzi], [ænd] [meɪ] [rɪˈkwaɪə] [tuː] [ˈpɔːpəsɪz] [ˈwɜːkɪŋ] [təˈgɛðə]. [ɪn] [əˈnʌðə] [geɪm], [æz] [ðə] [ˈtɜːtl] [swɪmz] [əˈkrɒs] [ði] oceanarium, [ðə] [fɜːst] [ˈpɔːpəs] [swuːps] [daʊn] [frɒm] [əˈbʌv] [ænd] [bʌts] [hɪz] [ʃɛl] [wɪð] [hɪz] [ˈbɛli]. [ðɪs] [nɒks] [ðə] [ˈtɜːtl] [daʊn] [ˈsɛvrəl] [fiːt]. [hiː] [nəʊ] [ˈsuːnə] [rɪˈkʌvəz] [hɪz] [ˌiːkwɪˈlɪbrɪəm] [ðæn] [ðə] [nɛkst] [ˈpɔːpəs] [kʌmz] [əˈlɒŋ] [ænd] [hɪts] [hɪm] [əˈnʌðə] [kræk]. [ɪˈvɛnʧəli] [ðə] [ˈtɜːtl] [hæz] [biːn] [ˈbjuːtɪd] [ɔːl] [ðə] [weɪ] [daʊn] [tuː] [ðə] [flɔːr] [ɒv] [ðə] [tæŋk]. [hiː] [ɪz] [naʊ] [ˈsætɪsfaɪd] [ˈmɪəli] [tuː] [traɪ] [tuː] [stænd] [ʌp], [bʌt] [æz] [suːn] [æz] [hiː] [dʌz] [səʊ] [ə] [ˈpɔːpəs] [nɒks] [hɪm] [flæt]. [ðə] [ˈtɜːtl] [æt] [lɑːst] [gɪvz] [ʌp] [baɪ] [ˈpʊlɪŋ] [hɪz] [fiːt] [ˈʌndə] [hɪz] [ʃɛl] [ænd] [ðə] [geɪm] [ɪz] [ˈəʊvə].
任务配置：
L0+L4
知识笔记 ：
练习感悟：
今天是课文最后一部分，文段短生词少。要注意多音节词的重音。flat做副词，有“水平地；平贴着”之意。
