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    Many musicians meet and form a band（乐队）because they like to write and play their own music.They may start as a group of high school students and practise their music in someone's house.Sometimes they may play to passers-by in the street or underground so that they can get some money for themselves or pay for their instruments（乐器）．

    However,there was one band that started in a different way．It was called the Monkees and was formed in 1965．It began as a TV show．The TV show had planned to find four rock musicians who could act as well as sing．But they could only find one who was good enough．They had to use actors for the other three members of the band．

    Since some of these actors could not sing well enough，they had to ask for help from other musicians．So at first，the band just pretended(假装)to sing．Anyway,their performances(演出)were excellent and they got lots of fans．Each week on TV,the Monkees would pretend to play and sing songs written by other musicians．After a year or so，they became more serious about their work．They started to play and sing their own songs like a real band．Then they produced(制作)their own records and started touring and playing their own music．In the US they became even more influential and popular than the Beatles and sold even more records．

    However，the band broke up around 1970．But happily they reunited(重聚)in the 1980s．They produced a new record in 1996 to celebrate their time as a band．It was very successful．Today the Monkees are still making music for their millions of fans．

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         我一纵身跨过板凳就坐下。我的心稍微平静了一点儿，我才注意到，我们的老师今天穿上了他那件挺漂亮的绿色礼服，打着皱边的领结，戴着那顶绣边的小黑丝帽。这套衣帽，他只在督学来视察或者发奖的日子才穿戴。而且整个教室有一种不平常的严肃的气氛。最使我吃惊的是，后边几排一向空着的板凳上坐着好些镇上的人，他们也跟我们一样肃静。其中有郝叟老头儿，戴着他那顶三角帽，有从前的镇长，从前的邮递员，还有些旁的人。个个看来都很忧愁。郝叟还带着一本书边破了的初级读本，他把书翻开，摊在膝头上，书上横放着他那副大眼镜。
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         他穿上那套漂亮的礼服，原来是为了纪念这最后一课!现在我明白了，镇上那些老年人为什么来坐在教室里。这好像告诉我，他们也懊悔当初没常到学校里来。他们像是用这种方式来感谢我们老师四十年来忠诚的服务，来表示对就要失去的国土的敬意。
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         忽然教堂的钟敲了十二下。祈祷的钟声也响了。窗外又传来普鲁士兵的号声——他们已经收操了。韩麦尔先生站起来，脸色惨白，我觉得他从来没有这么高大。
       “我的朋友们啊，”他说，“我——我——”
        但是他哽住了，他说不下去了。
        他转身朝着黑板，拿起一支粉笔，使出全身的力量，写了两个大字：“法兰西万岁!”
        然后他呆在那儿，头靠着墙壁，话也不说，只向我们做了一个手势：“放学了——，你们走吧。”

某生活小区鲜奶店每天以每瓶3元的价格从奶场购进优质鲜奶，然后以每瓶6元的价格出售，如果当天卖不完，剩余的只有倒掉．店主记录了30天的日需求量（单位：瓶），整理得下表：

（1）求这30天内日需求量的众数；

（2）假设鲜奶店在这30天内每天购进28瓶，求这30天的日利润（单位：元）的平均数；

（3）以30记录的各需求量的频率作为各需求是发生的概率．若鲜奶店每天购进28瓶，求在这记录的30天内日利润不低于81元的概率．