阅读下面这篇短文，短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第2～5段每段选择1个正确的小标题；(2)第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。 The Price of
Idleness 1．Electrical devices such as CD players, vidoes and burglar
alarms are consuming more energy in standby mode than when they are actually
being used. 2．Maria Sanchez and her colleagues from the Lawrence Livermore
National Laboratory in Berkeley, California, tested more than 50 small
electrical applicances, from computers to doorbells, electric mowers, VCRs, and
pool pumps. In the current issue of Energy Policy, they report that about half
of all consumer electronics energy is used in standby mode. This costs American
consumers ＄1 billion a year in wasted energy. 3．The researchers say
that while electronic devices are lying dormant(休眠状态),running their clocks,
maintaining internal memories or displaying their settings, they consume aroud
40 terawatt hours of electricity in the U.S. every year--enough to power a city
such as Chicago or London. Many machines use almost as much power on standby as
when working. For example, it takes 15 watts to play a typical CD, but an
average of 11 watts to keep it on standby. Satellite TV systems use 14 watts
when active and 14 watts on standby. Given the long hours these systems spend
idling, each uses far more power in standby mode than when actually
working. 4．"Bad design is largely to blame," says Sanchez. In a separate
survey of CD players last year, her colleague Wolfgang Huber found that two
machines with similar features used 28 watts and 2 watts respectively on
standby. "For most products, we believe that standby power can be reduced to one
watt or less," says Sanchez. 5．She backs proposals to set up a national
labeling system to promote machines that meet this standard. Such a system could
reduce standby power consumption in the U.S. by 50 per cent, says coauthor Alan
Meier--more than 20 terawatt hours per year. Last month, electronics company
Philips announced the launch of a device that can dramatically reduce the power
used in standby mode. Philips have started to develop a device that can greatly reduce ______.