练习材料：
NCE--第三册
L55-3: From the earth: Greetings
A telescope would have to be as far away as the planet Jupiter to look for life in outer space, because the dust becomes thinner the further we travel towards the outer edges of our own solar system.once we detected a planet,we would have to find a way of boltting out the light from its star,so that we would be able to 'see' the plantet properly and analyse its atmosphere.
In the first instance, we would be looking for plant life, rather than 'little green men'. The life forms most likely to develop on a planet would be bacteria. It is bacteria that have generated the oxygen we breathe on earth. For most of the earth's history they have been the only form of life on our planet. As Earth-dwellers, we always cherish the hope that we will be visited by little green men and that we will be able to communicate with them. But this hope is always in the realms of science fiction. If we were able to discover lowly forms of life like bacteria on another planet, it would completely change our view of ourselves. As Daniel Goldin of NASA observed, 'Finding life elsewhere would change everything. No human endeavour or thought would be unchanged by it.'
[ˈiːvən] [ə] [ˈtɛlɪskəʊp] [ɪn] [ˈɔːbɪt] [raʊnd] [ði] [ɜːθ], [laɪk] [ðə] [ˈvɛri] [səkˈsɛsfʊl] Hubble [ˈtɛlɪskəʊp], [wʊd] [nɒt] [biː] [ˈsjuːtəbl] [bɪˈkɒz] [ɒv] [ðə] [dʌst] [ˈpɑːtɪklz] [ɪn] [ˈaʊə] [ˈsəʊlə] [ˈsɪstɪm]. [ə] [ˈtɛlɪskəʊp] [wʊd] [hæv] [tuː] [biː] [æz] [fɑːr] [əˈweɪ] [æz] [ðə] [ˈplænɪt] [ˈʤuːpɪtə] [tuː] [lʊk] [fɔː] [laɪf] [ɪn] [ˈaʊtə] [speɪs], [bɪˈkɒz] [ðə] [dʌst] [bɪˈkʌmz] [ˈθɪnə] [ðə] [ˈfɜːðə] [wiː] [ˈtrævl] [təˈwɔːdz] [ði] [ˈaʊtər] [ˈɛʤɪz] [ɒv] [ˈaʊər] [əʊn] [ˈsəʊlə] [ˈsɪstɪm].
[ɪn] [ðə] [fɜːst] [ˈɪnstəns], [wiː] [wʊd] [biː] [ˈlʊkɪŋ] [fɔː] [plɑːnt] [laɪf], [ˈrɑːðə] [ðæn] [ˈlɪtl] [griːn] [mɛn]. [ðə] [laɪf] [fɔːmz] [məʊst] [ˈlaɪkli] [tuː] [dɪˈvɛləp] [ɒn] [ə] [ˈplænɪt] [wʊd] [biː] [bækˈtɪərɪə]. [ɪt] [ɪz] [bækˈtɪərɪə] [ðæt] [hæv] [ˈʤɛnəreɪtɪd] [ði] [ˈɒksɪʤən] [wiː] [briːð] [ɒn] [ɜːθ]. [fɔː] [məʊst] [ɒv] [ði] [ɜːθs] [ˈhɪstəri] [ðeɪ] [hæv] [biːn] [ði] [ˈəʊnli] [fɔːm] [ɒv] [laɪf] [ɒn] [ˈaʊə] [ˈplænɪt]. [æz] [ɜːθ]-[ˈdwɛləz], [wiː] [ˈɔːlweɪz] [ˈʧɛrɪʃ] [ðə] [həʊp] [ðæt] [wiː] [wɪl] [biː] [ˈvɪzɪtɪd] [baɪ] [ˈlɪtl] [griːn] [mɛn] [ænd] [ðæt] [wiː] [wɪl] [biː] [ˈeɪbl] [tuː] [kəˈmjuːnɪkeɪt] [wɪð] [ðɛm]. [bʌt] [ðɪs] [həʊp] [ɪz] [ˈɔːlweɪz] [ɪn] [ðə] [rɛlmz] [ɒv] [ˈsaɪəns] [ˈfɪkʃən]. [ɪf] [wiː] [wɜːr] [ˈeɪbl] [tuː] [dɪsˈkʌvə] [ˈləʊli] [fɔːmz] [ɒv] [laɪf] [laɪk] [bækˈtɪərɪə] [ɒn] [əˈnʌðə] [ˈplænɪt], [ɪt] [wʊd] [kəmˈpliːtli] [ʧeɪnʤ] [ˈaʊə] [vjuː] [ɒv] [ˌaʊəˈsɛlvz]. [æz] [ˈdænjəl] Goldin [ɒv] [ˈnæsə] [əbˈzɜːvd], [ˈfaɪndɪŋ] [laɪf] [ˈɛlsˈweə] [wʊd] [ʧeɪnʤ] [ˈɛvrɪθɪŋ]. [nəʊ] [ˈhjuːmən] [ɪnˈdɛvər] [ɔː] [θɔːt] [wʊd] [biː] [ʌnˈʧeɪnʤd] [baɪ] [ɪt].'
任务配置：
L0+L4
知识笔记 ：
练习感悟：
今天是课文最后一部分，不太好读。要注意先熟悉生词。有熟词生义，以往熟词的发音容易错，不难凭印象。今天的 [θ]音和 [ð]音比较多，特别是跟s连读时，又相反应不过来了。还是要多练。
