练习材料：
NCE--第四册
Lesson 18-2 Porpoises
Porpoises and sharks are natural enemies. It is possible that upon such an occasion a battle ensued, with the sharks being driven away or killed.
Whether it be bird, fish or beast, the porpoise is intrigued with anything that is alive. They are constantly after the turtles, who peacefully submit to all sorts of indignities. One young calf especially enjoyed raising a turtle to the surface with his snout and then shoving him across the tank like an aquaplane. Almost any day a young porpoise may be seen trying to turn a 300-pound sea turtle over by sticking his snout under the edge of his shell and pushing up for dear life.
[ˈpɔːpəsɪz] [ænd] [ʃɑːks] [ɑː] [ˈnæʧrəl] [ˈɛnɪmiz]. [ɪt] [ɪz] [ˈpɒsəbl] [ðæt] [əˈpɒn] [sʌʧ] [ən] [əˈkeɪʒən] [ə] [ˈbætl] [ɪnˈsjuːd], [wɪð] [ðə] [ʃɑːks] [ˈbiːɪŋ] [ˈdrɪvn] [əˈweɪ] [ɔː] [kɪld].
[ˈwɛðər] [ɪt] [biː] [bɜːd], [fɪʃ] [ɔː] [biːst], [ðə] [ˈpɔːpəs] [ɪz] [ɪnˈtriːgd] [wɪð] [ˈɛnɪθɪŋ] [ðæt] [ɪz] [əˈlaɪv]. [ðeɪ] [ɑː] [ˈkɒnstəntli] [ˈɑːftə] [ðə] [ˈtɜːtlz], [huː] [ˈpiːsfʊli] [səbˈmɪt] [tuː] [ɔːl] [sɔːts] [ɒv] [ɪnˈdɪgnɪtiz]. [wʌn] [jʌŋ] [kɑːf] [ɪsˈpɛʃəli] [ɪnˈʤɔɪd] [ˈreɪzɪŋ] [ə] [ˈtɜːtl] [tuː] [ðə] [ˈsɜːfɪs] [wɪð] [hɪz] [snaʊt] [ænd] [ðɛn] [ˈʃʌvɪŋ] [hɪm] [əˈkrɒs] [ðə] [tæŋk] [laɪk] [ən] [ˈækwəpleɪn]. [ˈɔːlməʊst] [ˈɛni] [deɪ] [ə] [jʌŋ] [ˈpɔːpəs] [meɪ] [biː] [siːn] [ˈtraɪɪŋ] [tuː] [tɜːn] [eɪ] 300-[paʊnd] [siː] [ˈtɜːtl] [ˈəʊvə] [baɪ] [ˈstɪkɪŋ] [hɪz] [snaʊt] [ˈʌndə] [ði] [ɛʤ] [ɒv] [hɪz] [ʃɛl] [ænd] [ˈpʊʃɪŋ] [ʌp] [fɔː] [dɪə] [laɪf].
任务配置：
L0+L4
知识笔记 ：
练习感悟：
今天是课文第二部分，很短生词少。难点是之前遇到过的语法现象，有with的独立主格结构。
