练习材料

Lesson 2-1 Spare that spider不要伤害蜘蛛

Why, you may wonder, should spiders be our friends? Because they destroy so many insects, and insects include some of the greatest enemies of the human race．Insects would make it impossible for us to live in the world; they would devour all our crops and kill our flocks and herds, if it were not for the protection we get from insect-eating animals．We owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders．Moreover, unlike some of the other insect eaters, spiders never do the least harm to us or our belongings.

Spiders are not insects, as many people think, nor even nearly related to them．One can tell the difference almost at a glance, for a spider always has eight legs and an insect never more than six.

/ˈlɛsən/ 2-1 /spɛr/ /ðæt/ /ˈspaɪdər/不要伤害蜘蛛

/waɪ/, /ju/ /meɪ/ /ˈwʌndər/, /ʃʊd/ /ˈspaɪdərz/ /bi/ /ˈaʊər/ /frɛndz/? /bɪˈkɔz/ /ðeɪ/ /dɪˈstrɔɪ/ /soʊ/ /ˈmɛni/ /ˈɪnˌsɛkts/, /ænd/ /ˈɪnˌsɛkts/ /ɪnˈklud/ /sʌm/ /ʌv/ /ðə/ /ˈgreɪtəst/ /ˈɛnəmiz/ /ʌv/ /ðə/ /ˈhjumən/ /reɪs/．/ˈɪnˌsɛkts/ /wʊd/ /meɪk/ /ɪt/ /ɪmˈpɑsəbəl/ /fɔr/ /ʌs/ /tu/ /lɪv/ /ɪn/ /ðə/ /wɜrld/; /ðeɪ/ /wʊd/ /dɪˈvaʊər/ /ɔl/ /ˈaʊər/ /krɑps/ /ænd/ /kɪl/ /ˈaʊər/ /flɑks/ /ænd/ /hɜrdz/, /ɪf/ /ɪt/ /wɜr/ /nɑt/ /fɔr/ /ðə/ /prəˈtɛkʃən/ /wi/ /gɛt/ /frʌm/ /ˈɪnˌsɛkt/-/ˈitɪŋ/ /ˈænəməlz/．/wi/ /oʊ/ /ə/ /lɑt/ /tu/ /ðə/ /bɜrdz/ /ænd/ /bists/ /hu/ /it/ /ˈɪnˌsɛkts/ /bʌt/ /ɔl/ /ʌv/ /ðɛm/ /pʊt/ /təˈgɛðər/ /kɪl/ /ˈoʊnli/ /ə/ /ˈfrækʃən/ /ʌv/ /ðə/ /ˈnʌmbər/ /dɪˈstrɔɪd/ /baɪ/ /ˈspaɪdərz/．/mɔˈroʊvər/, /ənˈlaɪk/ /sʌm/ /ʌv/ /ði/ /ˈʌðər/ /ˈɪnˌsɛkt/ /ˈitərz/, /ˈspaɪdərz/ /ˈnɛvər/ /du/ /ðə/ /list/ /hɑrm/ /tu/ /ʌs/ /ɔr/ /ˈaʊər/ /bɪˈlɔŋɪŋz/.

/ˈspaɪdərz/ /ɑr/ /nɑt/ /ˈɪnˌsɛkts/, /æz/ /ˈmɛni/ /ˈpipəl/ /θɪŋk/, /nɔr/ /ˈivɪn/ /ˈnɪrli/ /rɪˈleɪtɪd/ /tu/ /ðɛm/．/wʌn/ /kæn/ /tɛl/ /ðə/ /ˈdɪfərəns/ /ˈɔlˌmoʊst/ /æt/ /ə/ /glæns/, /fɔr/ /ə/ /ˈspaɪdər/ /ˈɔlˌweɪz/ /hæz/ /eɪt/ /lɛgz/ /ænd/ /ən/ /ˈɪnˌsɛkt/ /ˈnɛvər/ /mɔr/ /ðæn/ /sɪks/.