练习材料：
Too high a price? Part-1
代价太高？
Pollution is the price we pay for an overpopulated, over industrialized planet. When you come to think about it, there are only four ways you can deal with rubbish: dump it, burn it, turn it into something you can use again, attempt to produce less of it. We keep trying all four methods, but the sheer volume of rubbish we produce worldwide threatens to overwhelm us.
Rubbish, however, is only part of the problem of polluting our planet. The need to produce ever-increasing quantities of cheap food leads to a different kind of pollution. Industrialized farming methods produce cheap meat products: beef, pork and chicken. The use of pesticides and fertilizers produces cheap grain and vegetables. The price we pay for cheap food may be already too high: Mad Cow Disease (BSE) in cattle, salmonella in chicken and eggs, and wisteria in dairy products. And if you think you'll abandon meat and become a vegetarian, you have the choice of very expensive organically-grown vegetables or a steady diet of pesticides every time you think you're eating fresh salads and vegetables, or just having an innocent glass of water!
However, there is an even more insidious kind of pollution that particularly affects urban areas and invades our daily lives, and that is noise.
pəˈluːʃən ɪz ðə praɪs wiː peɪ fɔːr ən ˌəʊvəˈpɒpjʊleɪtɪd, ˈəʊvər ɪnˈdʌstrɪəlaɪzd ˈplænɪt. wɛn juː kʌm tuː θɪŋk əˈbaʊt ɪt, ðeər ɑːr ˈəʊnli fɔː weɪz juː kæn diːl wɪð ˈrʌbɪʃ: dʌmp ɪt, bɜːn ɪt, tɜːn ɪt ˈɪntuː ˈsʌmθɪŋ juː kæn juːz əˈgɛn, əˈtɛmpt tuː ˈprɒdjuːs lɛs ɒv ɪt. wiː kiːp ˈtraɪɪŋ ɔːl fɔː ˈmɛθədz, bʌt hiː ʃɪə ˈvɒljʊm ɒv ˈrʌbɪʃ wiː ˈprɒdjuːs ˌwɜːldˈwaɪd ˈθrɛtnz tuː ˌəʊvəˈwɛlm ʌs.
ˈrʌbɪʃ, haʊˈɛvə, ɪz ˈəʊnli pɑːt ɒv ðə ˈprɒbləm ɒv pəˈluːtɪŋ ˈaʊə ˈplænɪt. ðə niːd tuː ˈprɒdjuːs ˈɛvər-ɪnˈkriːsɪŋ ˈkwɒntɪtiz ɒv ʧiːp fuːd liːdz tuː ə ˈdɪfrənt kaɪnd ɒv pəˈluːʃən. ɪnˈdʌstrɪəlaɪzd ˈfɑːmɪŋ ˈmɛθədz ˈprɒdjuːs ʧiːp miːt ˈprɒdʌkts: biːf, pɔːk ænd ˈʧɪkɪn. ðə juːz ɒv ˈpɛstɪsaɪdz ænd ˈfɜːtɪlaɪzəz ˈprɒdjuːsɪz ʧiːp greɪn ænd ˈvɛʤtəb(ə)lz. ðə praɪs wiː peɪ fɔː ʧiːp fuːd meɪ biː ɔːlˈrɛdi tuː haɪ: mæd kaʊ dɪˈziːz (biː-ɛs-iː) ɪn ˈkætl, salmonella ɪn ˈʧɪkɪn ænd ɛgz, ænd wisteria ɪn ˈdeəri ˈprɒdʌkts. ænd ɪf juː θɪŋk juːl əˈbændən miːt ænd bɪˈkʌm ə ˌvɛʤɪˈteərɪən, juː hæv ðə ʧɔɪs ɒv ˈvɛri ɪksˈpɛnsɪv ɔːˈgænɪk(ə)li-grəʊn ˈvɛʤtəb(ə)lz ɔːr ə ˈstɛdi ˈdaɪət ɒv ˈpɛstɪsaɪdz ˈɛvri taɪm juː θɪŋk jʊər ˈiːtɪŋ frɛʃ ˈsælədz ænd ˈvɛʤtəb(ə)lz, ɔː ʤʌst ˈhævɪŋ ən ˈɪnəsənt glɑːs ɒv ˈwɔːtə!
haʊˈɛvə, ðeər ɪz ən ˈiːvən mɔːr ɪnˈsɪdɪəs kaɪnd ɒv pəˈluːʃən ðæt pəˈtɪkjʊləli əˈfɛkts ˈɜːbən ˈeərɪəz ænd ɪnˈveɪdz ˈaʊə ˈdeɪli lɪvz, ænd ðæt ɪz nɔɪz.
污染就是我们为这个人口过密，过度工业化的星球所付出的代价。当我们开始考虑垃圾问题时，我们只有4种对付垃圾的方法：倾倒、焚烧、把垃圾变成再生材料或试图少产生一些垃圾。我们一直在试这4种方式，但是，我们在世界范围内仅产生的垃圾的量就有把我们覆盖的危险。
然而，垃圾只是我们这个星球的污染问题的一个方面。日益增长的对廉价食物的需求导致了另一种形式的污染。工业化的农作方式生产出廉价的肉类制品——牛肉、猪肉和鸡肉。使用杀虫剂和化肥生产出廉价的谷物和蔬菜。为了廉价食物我们付出代价已经太高了：牛肉中的疯牛病，鸡肉和鸡蛋中的沙门氏菌，奶制品中的利斯特杆菌。如果你想放弃肉类而变成一位素食者，那么你可以两者择一：或是选用价格昂贵、有机培植的蔬菜，或是当你认为在享用新鲜色拉和新鲜蔬菜或饮用一杯无害的水的时候，实际上每次都不断吃进杀虫剂。
但是，还有一种更加隐蔽有害的污染，它专门影响城镇地区，侵袭我们的日常生活，那就是噪音。
任务配置：L0、L3、L4
知识笔记：
单词与短语
deal with对付
overwhelm/ˌəʊvəˈwɛlm/to cover or bury beneath a mass of something, as floodwaters, debris, or an avalanche; submerge:
The need to produce ever-increasing quantities of sth日益增长对...的需求
ɔːˈgænɪk(ə)li-grəʊn有机培植
insidious/ɪnˈsɪdɪəs/operating or proceeding in an inconspicuous or seemingly harmless way but actually with grave effect.
练习感悟：早起练习英语是我的锚定，今天周末，被其它不太重要的事情挤占了。