练习材料：
Lesson 72 A car called Bluebird
原文：
The great racing driver, Sir Malcolm Campbell, was the first man to drive at over 300 miles per hour. He set up a new world record in September 1935 at Bonneville Salt Flats, Utah. Bluebird, the car he was driving, had been specially built for him. It was over 30 feet in length and had a 2500 horse-power engine. Although Campbell reached a speed of over 304 miles per hour, he had great difficulty in controlling the car because a tyre burst during the first run. After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour. However, a few days later, he was told that a mistake had been made. His average speed had been 301 miles per hour. Since that time, racing drivers have reached speeds of over 400 miles an hour. Following in his father's footsteps many years later, Sir Malcolm's son, Donald, also set up a world record. Like his father, he was driving a car called Bluebird.
音标：
ðə greɪt ˈreɪsɪŋ ˈdraɪvər, sɜr ˈmælkəm ˈkæmbəl, wɑz ðə fɜrst mən tu draɪv æt ˈoʊvər 300 maɪlz pɜr ˈaʊər. hi sɛt ʌp ə nu wɜrldˈrɛkərd ɪn sɛpˈtɛmbər 1935 æt ˈbɑnəˌvɪl sɔlt flæts, ˈjuˌtɔ. ˈbluˌbɜrd, ðə kɑr hi wʌz ˈdraɪvɪŋ, hæd bɪn ˈspɛʃəli bɪlt fɔr hɪm. ɪt wɑzˈoʊvər 30 fit ɪn lɛŋθ ænd hæd eɪ 2500 hɔrs-ˈpaʊər ˈɛnʤən. ˌɔlˈðoʊ ˈkæmbəl riʧt ə spid ʌv ˈoʊvər 304 maɪlz pɜr ˈaʊər, hi hæd greɪt ˈdɪfəkəlti ɪn kənˈtroʊlɪŋ ðə kɑr bɪˈkɔz ə taɪr bɜrst ˈdʊrɪŋ ðə fɜrst rʌn. ˈftər hɪz əˈtɛmpt, ˈkæmbəl wʌz ˌdɪsəˈpɔɪntɪd tu lɜrn ðæt hɪzˈævərɪʤ spid hæd bɪn 299 maɪlz pɜr ˈaʊər. ˌhaʊˈɛvər, ə fju deɪz ˈleɪtər, hi wʌz toʊld ðæt ə mɪsˈteɪk hæd bɪn meɪd. hɪz ˈævərɪʤspid hæd bɪn 301 maɪlz pɜr ˈaʊər. sɪns ðæt taɪm, ˈreɪsɪŋ ˈdraɪvərz hæv riʧt spidz ʌv ˈoʊvər 400 maɪlz ən ˈaʊər. ˈfɑloʊɪŋ ɪn hɪzˈfɑðərz ˈfʊtˌstɛpˈmɛni jɪrz ˈleɪtər, sɜrˈmælkəmz sʌn, ˈdɑnəld, ˈɔlsoʊ sɛt ʌp ə wɜrld ˈrɛkərd. laɪk hɪz ˈfɑðər, hi wɑz ˈdraɪvɪŋ ə kɑr kɔld ˈbluˌbɜrd.
任务配置：
L0+L1+L2+L3+L4
知识笔记：
浊辅音【l】
发音方法：
发此音时，双唇要张大些，舌尖上扬抵住上齿龈，振动声带，气息由舌头两侧出来，【l】的音类似我们在发汉语拼音中的l或汉字乐之前舌头翘起振动声带的声音。
miles【maɪlz】
world【wɜrld】
salt【sɔlt】
flats【flæts】
bluebird【ˈbluˌbɜrd】
specially【ˈspɛʃəli】
built【bɪlt】
difficulty【ˈdɪfəkəlti】
controlling【kənˈtroʊlɪŋ】
later【ˈleɪtər】
told【toʊld】
following【ˈfɑloʊɪŋ】
also【ˈɔlsoʊ】
like【laɪk】
called【kɔld】
练习感悟：
@[01]林-贵州-项目管理 average的梅花音再饱满一点就更好了，years还是自带了l的感觉，he great difficulty落下一个great，今天起床很早么
@[00.185]Helen - 石家庄 - 软件 great总感觉怪怪的，好像g和r的发音不连贯，感觉Helen你的注重点放在ei上了，其他棒棒的，今天这篇依旧很稳定，数字好多
@[00]ManHK-南宁-学生（英音） 你的mile感觉带了r音似的，但是我又想了下你的英音应该是不卷的，那是l在卷么，总之觉得卷的有点大
1.今天依旧好多问题，有的是自己按照惯性按照以前的读法还以为自己对了呢，有些坏习惯要改要改
2.重音问题也是一直弄不好，可能目前专注点在怎么才能把音标读标准，但是重音不好语调也是不好听。
第57天打卡！
