a lot of people attach great importance t o
b ecoming rich and famous. B ut just now do people form a b and? Many mus icians meet and form a band becaus e th ey like t o write and play th eir own music.Th ey may start as a gr oup of high-school stud ents, for whom practising their mus i
c in s omeone s house is th e first step t o fame. Sometimes they may play to pass ers-by in th e street or subway so that they can ear n some extra money for th ems elv es or to pay for their instr uments. Lat er th ey may giv e per for mances in pubs or clubs, for which they ar e pai
d in cash. Of cours
e they hope to make records in a stud io and s ell millions o
f copies to becom e millionair es! How ever, ther e was one band that start ed in a differ ent way. It was called the Monkees and began as a TV show. The musicians wer e to play jok es on each other as well as play mus ic, most of which was based loosely on the Beatles. The TV or ganizer had planned to find four musicians who could act as well as sing. Th ey put an adv ertis ement in a news paper lookin
g for rock musicians, but t
h ey could only find one who was good enough.They had t o us e actors for the other thr ee memb ers of th eband. As some of these actors could not s ing well enough, they had t o r ely on other mus icians t o help them. So during the br oadcasts they just pret end ed to sing. Anyhow their perfor mances wer e humor ous enough to be copied by other groups. They w ere so popular that their fans formed clubs in ord er to get mor e familiar with them. Each week on TV, th e Monkees would play and sing s ongs written by oth er musicians. Howev er, aft er a year or so in which they b ecame more ser ious about th eir work, the Monkees start ed to play and sing th eir own s ongs like a real band. Then they prod uced their own r ecords and started tour ing and playing th eir own music. In th e USA they b ecame ev en mor e popular than th e Beatles and sold even more records. The band br oke up ab out 1970, but h appily they reunit ed in the mid-1980s. Th ey produced a new r ecord in 1996, with which th ey celebrat ed their former time as a real band. Fr eddy the frog（Ⅱ）Not long aft er Fr eddy and the band ecame famous, they visited Britain on a brief t our. F ans showed th eir d evotion b y wait ing for hours to get tickets for their concerts . Fr eddy was now quit e confident when he w ent into a concert hall. He enjoyed s inging and all the congrat ulations afterwards! His most exciting invit ation was t o perform on a TV programme called Top of pops. He had to go to London, w ear an expensiv e s uit and give a per for mance
to a TV camera. It felt v ery strange. But as soon as the pr ogramme was ov er, the t elephones which w ere in the same r oom start ed r inging. Ev eryb ody was asking when th ey could s ee Freddy and his band again. They wer e truly st ars. Then things went wrong. Fr edd y and his band could not go out anywhere without being follow ed. Ev en when they wor e sunglasses or beards people r ecognized them. Fans found th em ev en when they went into t oilet. They tried t o hid e in th e r eading rooms of librar ies, but it was us eless. Someone was always th ere! Th eir personal life was regularly discussed by people who did not know th em but t alked as if th ey clos e friends. At last feeling v ery upset and sensitiv e, Freddy and his band realized that they must leav e th e country b efore it b ecame too painful for them. So they left Br itain, to which they wer e nev er 15
业、航空工业、电气工业和船舶制造等方面。
(2)金属硅可以作为非铁基合金的添加剂，也用作要求严格的硅钢的合金剂，是炼钢、非铁基合金冶炼必不可少的脱氧剂。在炼钢工业中，每生产一吨钢大约消耗十公斤金属硅。
(3化学级金属硅是国家鼓励发展的集成电路所需的现代高技术多晶硅、单晶硅的原料。金属硅经多工序加工处理从拉制生长成多晶硅到单晶硅最后制成硅片。硅片是集成电路、电子原件必不可少的原材料，日本把钢铁、铝和半导体硅统称为三大金属材料。
(4)金属硅在化学工业中，用于生产有机化合物如硅油、硅橡胶、建筑物防腐剂、白炭黑、包装用薄膜涂料、高档家具涂料的添加剂、装饰漆添加剂、一般工业涂料添加剂等。
(5)目前金属硅的应用，还在不断地开发新领域，如制造太阳能电池、制造氮化硅和合成光纤等。用作某些金属的还原剂，用于制造新型陶瓷合金等。即使其副产品有硅微粉、硅渣等，也有着广泛的用途，被广泛应用于水泥、耐火材料、建筑等行业。上世纪90年代以来，国家大力提倡可持续性发展，大力推动新型洁净能源发展，而金属硅的最终用途主要用于电子半导体产业和太阳能光伏产业，这就为金属硅的发展提供了机遇和生命力。金属硅是生产多晶硅和单晶硅的基础原料，而多晶硅和单晶硅是电子半导体和太阳能光伏的主要材料。
①高纯的单晶硅是重要的半导体材料。在单晶硅中掺入微量的第ⅢA族元素，形成p型硅半导体；掺入微量的第VA族元素，形成
