职称英语理工类考试考前每日一练(4)_职称英语备考指南

　　5.It may not be many more years before a completely new technology is invented：过不了几年，说不定又会发明一种全新的技术。many more years是再过许多年。

　　6.there is no doubt you will continue to enjoy listening to your favorite music on CDs语法上可以理解为there is

　　no doubtyou will continue to enjoy listening to your favorite music on CDs。

　　练习：

　　1.Paragraphs 1 2____

　　2.Paragraph 3____

　　3.Paragraph 4____

　　4.Paragraph 5____

　　A.Digital code has wide applications.

　　B.Floppy disks are outdated。

　　C.CDs are durable.D.CDs working principle is explained.

　　E.CD-RWs play better than CDROMs.

　　F.CDs are of many formats.

　　5.One advantage of CDRWs is that they ean____like floppy disks。

　　6.The author predicts it will not____before a new technology is invented for music recording.

　　7.The laser beamemitting device and the receiver are considered to____of a CD player.

　　8.Space probes could not____without using digital codes.

　　A.shine on bumps

　　B.take many more years

　　C.be the key parts

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