作者：沪江网校
外教老师Alison的【外教带你说英语】又和大家见面啦~~这可是Alison为我们班量身订做的一档新概念英语口语小节目~想提高口语，摆脱哑巴英语的呢怎能错过？
节目内容：从新概念英语二的课文中选取一个话题，拓展相关文化知识，在节目最
后老师会给出小练习，希望大家积极参与哈~
第10课提到了jazz，那么jazz的起源是神马？分别演奏哪些乐器捏？
（Alison老师音频不能上传请点击原文：http://www.hujiang.com/c/xgn/p1073665/ ）
In Lesson 10, the writer talks about how a visitor broke the family’s clavichord by playing jazz on it. But why does playing jazz music cause so much damage? Why does jazz cause some of the clavichord keys to break?
Jazz music first became popular in the early 1900s among African American communities in southern parts of the US. Jazz music is usually played by a band made up oftrumpets,trombones,saxophones,drums, a piano and adouble bass, which is a big stringed instrument that you have to stand up to play. Jazz music can be loud, fast and wild (wild enough to break an old clavichord!), or it can be slow and sad.
A jazz song can also be different every time it is played because most jazz music includesimprovisation. Improvisation is when the musician has no music notes to read on the page, so he creates his ownmelodieson the spot. Musicians have to be very skilled to be able to playoff the cufflike this.
trombone[trɔm'bəun] n. 长号，伸缩喇叭
improvisation[ˌimprəvai'zeiʃən] n. 即席表演，即席创作
“On the spot” – means without preparation or planning
“Off the cuff” – also means without preparation or planning, but is more often used to refer to a performance, such as a speech or a song.
“To jazz something up” – to make something more attractive, like an outfit or a webpage
1.What would you like tojazz upin your life, and why?
2.Have you ever had to give a presentationoff the cuff? If not, what do you think it would feel like?
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