Vicky的ScalersTalk第六轮新概念朗读持续力训练Da

L55-2: From the earth: Greetings

ɛl55-2: frɒm ði ɜːθ: ˈgriːtɪŋz

Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop. But how would we find such a planet? At present, there is no telescope in existence that is capable of detecting the presence of life. The development of such a telescope will be one of the great astronomical projects of the twenty-first century.

It is impossible to look for life on another planet using earth-based telescopes. Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets.Even a telescope in orbit round the earth, like the very successful Hubble telescope, would not be suitable because of the dust particles in our solar system.

ɔːlˈtɜːnətɪvli, ɪf ðə stɑː wɜː smɔːl, ðə laɪf-səˈpɔːtɪŋ ˈplænɪt wʊd hæv tuː hæv ə kləʊs ˈɔːbɪt raʊnd ɪt ænd ˈɔːlsəʊ prəˈvaɪd ðə ˈpɜːfɪkt kənˈdɪʃənz fɔː laɪf fɔːmz tuː dɪˈvɛləp. bʌt haʊ wʊd wiː faɪnd sʌʧ ə ˈplænɪt? æt ˈprɛznt, ðeər ɪz nəʊ ˈtɛlɪskəʊp ɪn ɪgˈzɪstəns ðæt ɪz ˈkeɪpəbl ɒv dɪˈtɛktɪŋ ðə ˈprɛzns ɒv laɪf. ðə dɪˈvɛləpmənt ɒv sʌʧ ə ˈtɛlɪskəʊp wɪl biː wʌn ɒv ðə greɪt ˌæstrəˈnɒmɪkəl ˈprɒʤɛkts ɒv ðə ˈtwɛnti-fɜːst ˈsɛnʧʊri.

ɪt ɪz ɪmˈpɒsəbl tuː lʊk fɔː laɪf ɒn əˈnʌðə ˈplænɪt ˈjuːzɪŋ ɜːθ-beɪst ˈtɛlɪskəʊps. ˈaʊər əʊn wɔːm ˈætməsfɪər ænd ðə hiːt ˈʤɛnəreɪtɪd baɪ ðə ˈtɛlɪskəʊp wʊd meɪk ɪt ɪmˈpɒsəbl tuː dɪˈtɛkt ˈɒbʤɪkts æz smɔːl æz ˈplænɪts.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.

任务配置：L0、L3、L4

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