练习资料：
Children always appreciate small gifts of money. Mum or dad, of course, provide a regular supply of pocket money, but uncles and aunts are always a source of extra income. With some children, small sums go a long way. If 50 pence pieces are not exchanged for sweets, they rattle for months inside money boxes. Only very thrifty children manage to fill up a money box. For most of them, 50 pence is a small price to pay for a nice big bar of chocolate.
ˈʧɪldrən ˈɔlˌweɪz əˈpriʃiˌeɪt smɔl gɪfts ʌv ˈmʌni. mʌm ɔr dæd, ʌv kɔrs, prəˈvaɪd ə ˈrɛgjələr səˈplaɪ ʌv ˈpɑkət ˈmʌni, bʌt ˈʌŋkəlz ænd ænts ɑr ˈɔlˌweɪz ə sɔrs ʌv ˈɛkstrə ˈɪnˌkʌm. wɪð sʌm ˈʧɪldrən, smɔl sʌmz goʊ ə lɔŋ weɪ. ɪf 50 pɛns ˈpisəz ɑr nɑt ɪksˈʧeɪnʤd fɔr swits, ðeɪ ˈrætəl fɔr mʌnθs ɪnˈsaɪd ˈmʌni ˈbɑksəz. ˈoʊnli ˈvɛri ˈθrɪfti ˈʧɪldrən ˈmænəʤ tu fɪl ʌp ə ˈmʌni bɑks. fɔr moʊst ʌv ðɛm, 50 pɛns ɪz ə smɔl praɪs tu peɪ fɔr ə naɪs bɪg bɑr ʌv ˈʧɔklət.
My nephew,George, has a money box but it is always empty. Very few of the 50 pence pieces and pound coins I have given him have found their way there. I gave him 50 pence yesterday and advised him to save it. Instead he bought himself 50 pence worth of trouble.
maɪ ˈnɛfju,ʤɔrʤ, hæz ə ˈmʌni bɑks bʌt ɪt ɪz ˈɔlˌweɪz ˈɛmpti. ˈvɛri fju ʌv ði 50 pɛns ˈpisəz ænd paʊnd kɔɪnz aɪ hæv ˈgɪvən hɪm hæv faʊnd ðɛr weɪ ðɛr. aɪ geɪv hɪm 50 pɛns ˈjɛstərˌdeɪ ænd ædˈvaɪzd hɪm tu seɪv ɪt. ɪnˈstɛd hi bɑt hɪmˈsɛlf 50 pɛns wɜrθ ʌv ˈtrʌbəl.
任务配置：L0、L1、L3、L4
知识笔记：
单词
rattle/ ˈrætəl /to give out or cause a rapid succession of short, sharp sounds, as in consequence of agitation and repeated concussions:
thrifty/ˈθrɪfti/practicing thrift or economical management; frugal:
thrift ：economical management; economy; frugality.
音标
/f/发音要点：下唇轻触上齿；气流从唇齿间的缝隙中通过，引起摩擦；发音时声带不振动。重点是上齿咬下唇。
/v/发音要点：发音位置与/f/相同，但声带振动。
练习感悟：2.14补的作业，一天不练于心不安。一次练两天的，上气不接下气。
