练习材料
Lesson 40-2 Waves
If the water was moving with the wave, the ocean and everything on it would be racing in to the shore with obviously catastrophic results.
An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit, drawing the particle first towards the advancing wave, then up into the wave, then forward with it and then -- as the wave leaves the particles behind -- back to its starting point again.
From both maturity to death, a wave is subject to the same laws as any other 'living' thing. For a time it assumes a miraculous individuality that, in the end, is reabsorbed into the great ocean of life.
The undulating waves of the open sea are generated by three natural causes: wind, earth movements or tremors, and the gravitational pull of the moon and the sun. Once waves have been generated, gravity is the force that drives them in a continual attempt to restore the ocean surface to a flat plain.
/ˈlɛsən/ 40-2 /weɪvz/
/ɪf/ /ðə/ /ˈwɔtər/ /wəz/ /ˈmuvɪŋ/ /wɪð/ /ðə/ /weɪv/, /ði/ /ˈoʊʃən/ /ənd/ /ˈɛvriˌθɪŋ/ /ɑn/ /ɪt/ /wəd/ /bi/ /ˈreɪsɪŋ/ /ɪn/ /tə/ /ðə/ /ʃɔr/ /wɪð/ /ˈɑbviəsli/ /ˌkætəˈstrɑfɪk/ /rɪˈzʌlts/.
/ən/ /ˈoʊʃən/ /weɪv/ /ˈpæsɪŋ/ /θru/ /dip/ /ˈwɔtər/ /ˈkɑzəz/ /ə/ /ˈpɑrtəkəl/ /ɑn/ /ðə/ /ˈsɜrfəs/ /tə/ /muv/ /ɪn/ /ə/ /ˈrʌfli/ /ˈsɜrkjələr/ /ˈɔrbət/, /ˈdrɔɪŋ/ /ðə/ /ˈpɑrtəkəl/ /fɜrst/ /təˈwɔrdz/ /ði/ /ədˈvænsɪŋ/ /weɪv/, /ðɛn/ /ʌp/ /ˈɪntə/ /ðə/ /weɪv/, /ðɛn/ /ˈfɔrwərd/ /wɪð/ /ɪt/ /ənd/ /ðɛn/ -- /əz/ /ðə/ /weɪv/ /livz/ /ðə/ /ˈpɑrtəkəlz/ /bɪˈhaɪnd/ -- /bæk/ /tʊ/ /ɪts/ /ˈstɑrtɪŋ/ /pɔɪnt/ /əˈgɛn/.
/frəm/ /boʊθ/ /məˈʧʊrəti/ /tə/ /dɛθ/, /ə/ /weɪv/ /əz/ /ˈsʌbʤɪkt/ /tə/ /ðə/ /seɪm/ /lɔz/ /əz/ /ˈɛni/ /ˈʌðər/ /ˈlɪvɪŋ/ /θɪŋ/. /fər/ /ə/ /taɪm/ /ɪt/ /əˈsumz/ /ə/ /məˈrækjələs/ /ɪnˌdɪvɪʤuˈælɪti/ /ðæt/, /ɪn/ /ði/ /ɛnd/, /ɪz/ /ˌriəbˈzɔrbd/ /ˈɪntə/ /ðə/ /greɪt/ /ˈoʊʃən/ /əv/ /laɪf/.
/ði/ /ˈʌnʤəˌleɪtɪŋ/ /weɪvz/ /əv/ /ði/ /ˈoʊpən/ /si/ /ər/ /ˈʤɛnəˌreɪtəd/ /baɪ/ /θri/ /ˈnæʧərəl/ /ˈkɑzəz/: /wɪnd/, /ɜrθ/ /ˈmuvmənts/ /ɔr/ /ˈtrɛmərz/, /ənd/ /ðə/ /ˌgrævɪˈteɪʃənəl/ /pʊl/ /əv/ /ðə/ /mun/ /ənd/ /ðə/ /sʌn/. /wʌns/ /weɪvz/ /həv/ /bɪn/ /ˈʤɛnəˌreɪtəd/, /ˈgrævəti/ /əz/ /ðə/ /fɔrs/ /ðət/ /draɪvz/ /ðəm/ /ɪn/ /ə/ /kənˈtɪnjuəl/ /əˈtɛmpt/ /tə/ /rɪˈstɔr/ /ði/ /ˈoʊʃən/ /ˈsɜrfəs/ /tʊ/ /ə/ /flæt/ /pleɪn/.
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