练习材料

Lesson 26-2The past life of the earth

The remains of plants and animals that lived on land are much more rarely preserved, for there is seldom anything to cover them over. When you think of the innumerable birds that one sees flying bout, not to mention the equally numerous small animals like field mice and voles which you do not see, it is very rarely that one comes across a dead body, except, of course, on the roads. They decompose and are quickly destroyed by the weather or eaten by some other creature.

It is almost always due to some very special circumstances that traces of land animals survive, as by falling into inaccessible caves, or into an ice crevasse, like the Siberian mammoths, when the whole animal is sometimes preserved, as in a refrigerator.

/ˈlɛsən/ 26-2/ðə/ /pæst/ /laɪf/ /ʌv/ /ði/ /ɜrθ/

/ðə/ /rɪˈmeɪnz/ /ʌv/ /plænts/ /ænd/ /ˈænəməlz/ /ðæt/ /laɪvd/ /ɑn/ /lænd/ /ɑr/ /mʌʧ/ /mɔr/ /ˈrɛrli/ /prəˈzɜrvd/, /fɔr/ /ðɛr/ /ɪz/ /ˈsɛldəm/ /ˈɛniˌθɪŋ/ /tu/ /ˈkʌvər/ /ðɛm/ /ˈoʊvər/. /wɛn/ /ju/ /θɪŋk/ /ʌv/ /ði/ /ɪˈnumərəbəl/ /bɜrdz/ /ðæt/ /wʌn/ /siz/ /ˈflaɪɪŋ/ /baʊt/, /nɑt/ /tu/ /ˈmɛnʃən/ /ði/ /ˈikwəli/ /ˈnumərəs/ /smɔl/ /ˈænəməlz/ /laɪk/ /fild/ /maɪs/ /ænd/ /voʊlz/ /wɪʧ/ /ju/ /du/ /nɑt/ /si/, /ɪt/ /ɪz/ /ˈvɛri/ /ˈrɛrli/ /ðæt/ /wʌn/ /kʌmz/ /əˈkrɔs/ /ə/ /dɛd/ /ˈbɑdi/, /ɪkˈsɛpt/, /ʌv/ /kɔrs/, /ɑn/ /ðə/ /roʊdz/. /ðeɪ/ /ˌdikəmˈpoʊz/ /ænd/ /ɑr/ /ˈkwɪkli/ /dɪˈstrɔɪd/ /baɪ/ /ðə/ /ˈwɛðər/ /ɔr/ /ˈitən/ /baɪ/ /sʌm/ /ˈʌðər/ /ˈkriʧər/.

/ɪt/ /ɪz/ /ˈɔlˌmoʊst/ /ˈɔlˌweɪz/ /du/ /tu/ /sʌm/ /ˈvɛri/ /ˈspɛʃəl/ /ˈsɜrkəmˌstænsəz/ /ðæt/ /ˈtreɪsəz/ /ʌv/ /lænd/ /ˈænəməlz/ /sərˈvaɪv/, /æz/ /baɪ/ /ˈfɑlɪŋ/ /ˈɪntu/ /ˌɪnəkˈsɛsəbəl/ /keɪvz/, /ɔr/ /ˈɪntu/ /ən/ /aɪs/ crevasse, /laɪk/ /ðə/ /saɪˈbɪriən/ /ˈmæməθs/, /wɛn/ /ðə/ /hoʊl/ /ˈænəməl/ /ɪz/ /səmˈtaɪmz/ /prəˈzɜrvd/, /æz/ /ɪn/ /ə/ /rəˈfrɪʤəˌreɪtər/.