2. 外语
  3. Some British supermarket companies are asking their warehouse workers to wear small computers, calling "electronic tags". The

Some British supermarket companies are asking their warehouse workers to wear small computers, calling "electronic tags". The

admin2010-09-10  25
问题     Some British supermarket companies are asking their warehouse
workers to wear small computers, calling "electronic tags". The              【M1】______
companies say that these tags will to help them to reduce costs              【M2】______
and increase the efficient delivery of goods and food to stores.
The system uses American satellite and radio technology
send messages to the workers. In a report Professor Blakemore                【M3】______
from the University of Durham said that the use of
these tags is making some workplaces more like prisons.                      【M4】______
The technology arrived from the US at the start of the year
and more and more companies are using it. Almost 10,000
employees are using it to supply good to well-known British                  【M5】______
supermarkets. Trade unionists representing workers are
worried that companies could use the technology to check
what workers are doing work. They are asking for special                     【M6】______
measures to make sure that this does not happen.
Under the system, workers have to wore computers on                          【M7】______
their wrists, arms and fingers, and sometimes they have to wear a
special vest contained a computer that instructs them                        【M8】______
where go to collect goods from warehouse shelves.                            【M9】______
The system also allowed the store to send orders to workers’ computers.      【M10】______
【M4】
选项
答案is改成was
解析 这句是考一个句子前后时态要一致。极易看不出来。主动问是said，那么教授过去说的话的内容也应该用过去时态(根据情况可能是一般过去时，过去进行时，过去完成时，过去将来时等)。所以后面的is making改成was making就行了。
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大学英语四级

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