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 aspider always has eight legs and an insect never more than six.
speə ðæt ˈspaɪdə
waɪ, juː meɪ ˈwʌndə,
ʃʊd ˈspaɪdəz biː ˈaʊə frɛndz? bɪˈkɒz ðeɪ dɪsˈtrɔɪ səʊ ˈmɛni ˈɪnsɛkts, ænd ˈɪnsɛkts
ɪnˈkluːd sʌm ɒv ðə ˈgreɪtɪst ˈɛnɪmiz ɒv ðə ˈhjuːmən reɪs．ˈɪnsɛkts wʊd meɪk ɪt ɪmˈpɒsəbl fɔːr ʌs tuː
lɪv ɪn ðə wɜːld; ðeɪ wʊd dɪˈvaʊər ɔːl ˈaʊə krɒps ænd kɪl ˈaʊə flɒks ænd hɜːdz, ɪf
ɪt wɜː nɒt fɔː ðə prəˈtɛkʃən wiː gɛt frɒm ˈɪnsɛkt-ˈiːtɪŋ ˈænɪməlz．wiː əʊ ə lɒt tuː ðə bɜːdz ænd biːsts huː
iːt ˈɪnsɛkts bʌt ɔːl ɒv ðɛm pʊt təˈgɛðə kɪl ˈəʊnli ə ˈfrækʃən ɒv ðə ˈnʌmbə dɪsˈtrɔɪd
baɪ ˈspaɪdəz．mɔːˈrəʊvə, ʌnˈlaɪk sʌm ɒv ði ˈʌðər ˈɪnsɛkt
ˈiːtəz, ˈspaɪdəz ˈnɛvə duː ðə liːst hɑːm tuː ʌs ɔːr ˈaʊə bɪˈlɒŋɪŋz. ˈspaɪdəz ɑː nɒt ˈɪnsɛkts, æz ˈmɛni ˈpiːpl θɪŋk, nɔːr
ˈiːvən ˈnɪəli rɪˈleɪtɪd tuː ðɛm．wʌn kæn tɛl ðə ˈdɪfrəns ˈɔːlməʊst æt ə glɑːns, fɔːr ə ˈspaɪdər ˈɔːlweɪz hæz eɪt lɛgz ænd ən ˈɪnsɛktˈnɛvə mɔː ðæn sɪks.
任务配置：L0+L4
知识笔记：
单词：1、spare the：饶了……，2、human race：人类，3、flocks：羊群，4、herds：牛群，5、beast：兽，走兽，6、fraction：分，分数，7、moreover：而且，此外，8、belongings：财务，财产，9、relate：涉及，有关，叙述，
音标：
感悟：今天的文章比较短，语速也慢，生词不多，不过读起来稍微拗口，所以录了3遍才达标
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