1.练习材料
Lesson67 Volcanoes
Haroun Tazieff， the Polish scientist, has spent his life-time studying active volcanoes and deep caves in all parts of the world. In 1948, he went to Lake Kivu in the Congo to observe a new volcano which he later named Kituro. Tazieff was able to set up his camp very close to the volcano while it was erupting violently. Though he managed to take a number of brilliant photographs, he could not stay near the volcano for very long. He noticed that a river of liquid rock was coming towards him. It threatened to surround him completely, but Tazieff managed to escape just in time. He waited until the volcano became quiet and he was able to return two days later. This time, he managed to climb into the mouth of Kituro so that he could take photographs and measure temperatures. Tazieff has often risked his life in this way. He has been able to tell us more about active volcanoes than any man alive.
2.任务配置:L0+L1
3.知识笔记
(1)查音标
/ˈlɛsn/67 /vɒlˈkeɪnəʊz/
Haroun Tazieff，/ðə/ /ˈpɒlɪʃ/ /ˈsaɪəntɪst/, /hæz/ /spɛnt/ /hɪz/ /laɪf/-/taɪm/ /ˈstʌdiɪŋ/ /ˈæktɪv/ /vɒlˈkeɪnəʊz/ /ænd/ /diːp/ /keɪvz/ /ɪn/ /ɔːl/ /pɑːts/ /ɒv/ /ðə/ /wɜːld/. /ɪn/ 1948, /hiː/ /wɛnt/ /tuː/ /leɪk/ Kivu /ɪn/ /ðə/ /ˈkɒŋgəʊ/ /tuː/ /əbˈzɜːv/ /ə/ /njuː/ /vɒlˈkeɪnəʊ/ /wɪʧ/ /hiː/ /ˈleɪtə/ /neɪmd/ Kituro. Tazieff /wɒz/ /ˈeɪbl/ /tuː/ /sɛt/ /ʌp/ /hɪz/ /kæmp/ /ˈvɛri/ /kləʊs/ /tuː/ /ðə/ /vɒlˈkeɪnəʊ/ /waɪl/ /ɪt/ /wɒz/ /ɪˈrʌptɪŋ/ /ˈvaɪələntli/. /ðəʊ/ /hiː/ /ˈmænɪʤd/ /tuː/ /teɪk/ /ə/ /ˈnʌmbər/ /ɒv/ /ˈbrɪljənt/ /ˈfəʊtəgrɑːfs/, /hiː/ /kʊd/ /nɒt/ /steɪ/ /nɪə/ /ðə/ /vɒlˈkeɪnəʊ/ /fɔː/ /ˈvɛri/ /lɒŋ/. /hiː/ /ˈnəʊtɪst/ /ðæt/ /ə/ /ˈrɪvər/ /ɒv/ /ˈlɪkwɪd/ /rɒk/ /wɒz/ /ˈkʌmɪŋ/ /təˈwɔːdz/ /hɪm/. /ɪt/ /ˈθrɛtnd/ /tuː/ /səˈraʊnd/ /hɪm/ /kəmˈpliːtli/, /bʌt/ Tazieff /ˈmænɪʤd/ /tuː/ /ɪsˈkeɪp/ /ʤʌst/ /ɪn/ /taɪm/. /hiː/ /ˈweɪtɪd/ /ənˈtɪl/ /ðə/ /vɒlˈkeɪnəʊ/ /bɪˈkeɪm/ /ˈkwaɪət/ /ænd/ /hiː/ /wɒz/ /ˈeɪbl/ /tuː/ /rɪˈtɜːn/ /tuː/ /deɪz/ /ˈleɪtə/. /ðɪs/ /taɪm/, /hiː/ /ˈmænɪʤd/ /tuː/ /klaɪm/ /ˈɪntuː/ /ðə/ /maʊθ/ /ɒv/ Kituro /səʊ/ /ðæt/ /hiː/ /kʊd/ /teɪk/ /ˈfəʊtəgrɑːfs/ /ænd/ /ˈmɛʒə/ /ˈtɛmprɪʧəz/. Tazieff /hæz/ /ˈɒf(ə)n/ /rɪskt/ /hɪz/ /laɪf/ /ɪn/ /ðɪs/ /weɪ/. /hiː/ /hæz/ /biːn/ ~ˈeɪbl/ /tuː/ /tɛl/ /ʌs/ /mɔːr/ /əˈbaʊt/ /ˈæktɪv/ /vɒlˈkeɪnəʊz/ /ðæn/ /ˈɛni/ /mæn/ /əˈlaɪv/.
1) volcano /vɒlˈkeɪnəʊ/ n. 火山
2) active /ˈæktɪv/ adj. 活动的
3) Kivu / Kivu / n. 基伍湖
4) Congo /ˈkɒŋgəʊ/ n. 刚果
5) erupt /ɪˈrʌpt/ v. 喷发
6) violently /ˈvaɪələntli/ adv. 猛烈的，剧烈的
7) manage /ˈmænɪʤ/ v. 设法
8) brilliant /ˈbrɪljənt/ adj. 精彩的
9) liquid /ˈlɪkwɪd/ adj. 液态的
10) escape /ɪsˈkeɪp/ v. 逃脱
11) alive /əˈlaɪv/ adj. 活着的
(2) 学音标/ʧ/
发音方法：
1) 双唇微张向前突出，略成圆形。
2) 舌尖和舌端抬起贴住上齿龈后部，憋住气。
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。/t∫/是个清辅音，声带不震动。
4) 单词练习
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. 虚拟的
5) 课文中相关单词
with temperatures
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