小米的ScalersTalk第四轮新概念朗读持续力训练Day348 20190920

练习材料：

NCE--第四册

Lesson 43-4 Are there strangers in space?

Fortunately, there is a 'uniquely rational way' for us to communicate with other intelligent beings, as Walter Sullivan has put it in his excellent book, We Are not Alone. This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second. It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951; it must be known to any kind of radio astronomer in the universe.

Once the existence of this wave-length had been discovered, it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested. Without something of this kind, searching for intelligences on other planets would be like trying to meet a friend in London without a pre-arranged rendezvous and absurdly wandering the streets in the hope of a chance encounter.

[ˈfɔːʧnɪtli], [ðeər] [ɪz] [ə] [juːˈniːkli] [ˈræʃənl] [weɪ] [fɔːr] [ʌs] [tuː] [kəˈmjuːnɪkeɪt] [wɪð] [ˈʌðər] [ɪnˈtɛlɪʤənt] [ˈbiːɪŋz], [æz] [ˈwɔːltə] [ˈsʌlɪv(ə)n] [hæz] [pʊt] [ɪt] [ɪn] [hɪz] [ˈɛksələnt] [bʊk], [wiː] [ɑː] [nɒt] [əˈləʊn]. [ðɪs] [dɪˈpɛndz] [ɒn] [ðə] [prɪˈsaɪz] [ˈreɪdɪəʊ] [ˈfriːkwənsi] [ɒv] [ðiː] 21-cm [ˈweɪvlɛŋθ], [ɔː] 1420 [ˈmɛgəˈsaɪklz] [pɜː] [ˈsɛkənd]. [ɪt] [ɪz] [ðə] [ˈnæʧrəl] [ˈfriːkwənsi] [ɒv] [ɪˈmɪʃən] [ɒv] [ðə] [ˈhaɪdrɪʤən] [ˈætəmz] [ɪn] [speɪs] [ænd] [wɒz] [dɪsˈkʌvəd] [baɪ] [ʌs] [ɪn] 1951; [ɪt] [mʌst] [biː] [nəʊn] [tuː] [ˈɛni] [kaɪnd] [ɒv] [ˈreɪdɪəʊ] [əsˈtrɒnəmər] [ɪn] [ðə] [ˈjuːnɪvɜːs].

[wʌns] [ði] [ɪgˈzɪstəns] [ɒv] [ðɪs] [ˈweɪvlɛŋθ] [hæd] [biːn] [dɪsˈkʌvəd], [ɪt] [wɒz] [nɒt] [lɒŋ] [bɪˈfɔːr] [ɪts] [juːz] [æz] [ðə] [juːˈniːkli] [ˈrɛkəgnaɪzəbl] [ˈbrɔːdkɑːstɪŋ] [ˈfriːkwənsi] [fɔːr] [ˌɪntə(ː)ˈstɛlə] [kəˌmjuːnɪˈkeɪʃən] [wɒz] [səˈʤɛstɪd]. [wɪˈðaʊt] [ˈsʌmθɪŋ] [ɒv] [ðɪs] [kaɪnd], [ˈsɜːʧɪŋ] [fɔːr] [ɪnˈtɛlɪʤənsɪz] [ɒn] [ˈʌðə] [ˈplænɪts] [wʊd] [biː] [laɪk] [ˈtraɪɪŋ] [tuː] [miːt] [ə] [frɛnd] [ɪn] [ˈlʌndən] [wɪˈðaʊt] [ə] [priː]-[əˈreɪnʤd] [ˈrɒndɪvuː] [ænd] [əbˈsɜːdli] [ˈwɒndərɪŋ] [ðə] [striːts] [ɪn] [ðə] [həʊp] [ɒv] [ə] [ʧɑːns] [ɪnˈkaʊntə].

任务配置：

L0+L4

知识笔记 ：

练习感悟：

9.20

今天是课文第四部分。单词方面要注意元音的发音，千万不要凭印象，要查。注意，radio在文中作名词，表示“无线电，射电。”注意连词。

到9.28才能恢复更新，这是后来补的。