训练材料：
[Day 1544 2018-12-18]
Lesson72 A car called Bluebird
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. Followingin 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.
[deɪ 1544 2018-12-18]
ˈlɛsən72 ə kɑr kɔld ˈbluˌbɜrd
ðə greɪt ˈreɪsɪŋ ˈdraɪvər, sɜr ˈmælkəm ˈkæmbəl, wʌz ðə fɜrst mən tu draɪv æt ˈoʊvər 300 maɪlz pɜr ˈaʊər. hi sɛt ʌp ə nu wɜrld ˈrɛkərd ɪn sɛpˈtɛmbər 1935 æt ˈbɑnəˌvɪl sɔlt flæts, ˈjuˌtɔ. ˈbluˌbɜrd, ðə kɑr hi wʌz ˈdraɪvɪŋ, hæd bɪn ˈspɛʃəli bɪlt fɔr hɪm. ɪt wʌz ˈoʊvər 30 fit ɪn lɛŋkθ 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. ˈæftər hɪz əˈtɛmpt, ˈkæmbəl wʌz ˌdɪsəˈpɔɪntɪd tu lɜrn ðæt hɪz ˈævərɪʤ spid hæd bɪn 299 maɪlz pɜr ˈaʊər. ˌhaʊˈɛvər, ə fju deɪz ˈleɪtər, hi wʌz toʊld ðæt ə mɪsˈteɪk hæd bɪn meɪd. hɪz ˈævərɪʤ spid hæd bɪn 301 maɪlz pɜr ˈaʊər. sɪns ðæt taɪm, ˈreɪsɪŋ ˈdraɪvərz hæv riʧt spidz ʌv ˈoʊvər 400 maɪlz ən ˈaʊər. ˈfɑloʊɪŋ ɪn hɪz ˈfɑðərz ˈfʊtˌstɛps ˈmɛni jɪrz ˈleɪtər, sɜr ˈmælkəmz sʌn, ˈdɑnəld, ˈɔlsoʊ sɛt ʌp ə wɜrld ˈrɛkərd. laɪk hɪz ˈfɑðər, hi wʌz ˈdraɪvɪŋ ə kɑr kɔld ˈbluˌbɜrd.
任务配置：L0+L1+L4
知识点：
练习感悟：今天开始第二轮音标练习。
