Lesson56 Faster thansound!
Once ayear, a race is held for old cars. A lot of cars entered for this race lastyear and there was a great deal of excitement just before it began. One of the most handsome cars was a Rolls-Royce Silver Ghost. The most unusualcar was a Benz whichhad only threewheels. Built in 1885, it was the oldest car taking part. After a great manyloud explosions, the race began. Many of the cars broke down on the courseand some drivers spent more time under their carsthan in them ! A few cars, however, completed the race. The winning car reacheda speed of forty miles an hour--much faster than any of its rivals. It sped downhill at the end of the race and its driverhad a lot of troubletrying to stop it. The race gave everyone a great deal of pleasure. Itwas very different from modern car races but no less exciting.
wʌns ə jɪə, ə reɪs ɪz hɛld fɔːr əʊld kɑːz. ə lɒt ɒv kɑːz ˈɛntəd fɔː ðɪs reɪs lɑːst jɪər ænd ðeə wɒz ə greɪt diːl ɒv ɪkˈsaɪtmənt ʤʌstbɪˈfɔːr ɪt bɪˈgæn. wʌn ɒv ðə məʊst ˈhænsəm kɑːz wɒz ə rəʊlz-rɔɪs ˈsɪlvə gəʊst. ðə məʊst ʌnˈjuːʒʊəl kɑː wɒz ə bɛnz wɪʧ hædˈəʊnli θriː wiːlz. bɪlt ɪn 1885, ɪt wɒz ði ˈəʊldɪst kɑː ˈteɪkɪŋ pɑːt. ˈɑːftər ə greɪt ˈmɛni laʊd ɪksˈpləʊʒənz, ðə reɪs bɪˈgæn. ˈmɛni ɒv ðəkɑːz brəʊk daʊn ɒn ðə kɔːs ænd sʌm ˈdraɪvəz spɛnt mɔː taɪm ˈʌndə ðeə kɑːz ðæn ɪn ðɛm ! ə fjuː kɑːz, haʊˈɛvə, kəmˈpliːtɪd ðəreɪs. ðə ˈwɪnɪŋ kɑː riːʧt ə spiːd ɒv ˈfɔːti maɪlz ən ˈaʊə--mʌʧ ˈfɑːstə ðæn ˈɛni ɒv ɪts ˈraɪvəlz. ɪt spɛd ˌdaʊnˈhɪl æt ði ɛnd ɒv ðə reɪsænd ɪts ˈdraɪvə hæd ə lɒt ɒv ˈtrʌbl ˈtraɪɪŋ tuː stɒp ɪt. ðə reɪs geɪv ˈɛvrɪwʌn ə greɪt diːl ɒv ˈplɛʒə. ɪt wɒz ˈvɛri ˈdɪfrənt frɒm ˈmɒdənkɑː ˈreɪsɪz bʌt nəʊ lɛs ɪkˈsaɪtɪŋ.
现在来看看我们应该如何正确的发出/t∫/这个音。
[if !supportLists]1. [endif]1）双唇微张向前突出，略成圆形。
[if !supportLists]2. [endif]2）舌尖和舌端抬起贴住上齿龈后部，憋住气。
[if !supportLists]3. [endif]3）然后舌尖稍稍下降，气流从舌和齿龈间的狭缝中冲出，摩擦成音。
注意：/t∫/是个清辅音，声带不震动。/tʃ/这个音和汉语拼音中的声母ch很相近，很多北方同学会用"吃"代替/tʃ/是不正确的，一些南方同学会把/tʃ/和汉语拼音中的声母q混淆，也是极不正确的，应注意区分它们的异同。
a、一般发/t∫/这个音的字母组合为"ch"和"tch",例词：
chair /tʃeə/ n. 椅子
chain /tʃeɪn/ n. 链
cheap /tʃiːp/ adj. 便宜的
catch /kætʃ/ n. 捕捉
kitchen /'kɪtʃɪn/ n. 厨房
watch /wɒtʃ/ n. 手表
b、当字母"t"出现在"ua,ure"等组合前时也经常发/t∫/音,例词：
natural /ˈnætʃrəl/ adj. 自然的
future /'fjuːtʃə/ n. 未来
century /ˈsentʃərɪ/ n. 世纪
virtual /ˈvɜ:tʃuəl/ adj. [计] 虚拟的
任务l0+l1
