Francisco，where an old chocolate factory was renovated and made into shops and restaurants.Trolley Square in Salt Lake City，where an abandoned car warehouse became a shopping centre.

　　What caused the change？"One reason is nostalgia (怀旧)，" a San Francisco builder suggests."Maybe old is better than new，many people are saying.Feelings about preserving attractive or historic buildings have changed a great deal." A second cause is economy.The cost of tearing down an old building and constructing a new one from nothing now has risen to the point where it is often less expensive to fix a solid older structure.

　　Even when the costs of renovation are the same as or a bit more than the costs of putting up a new building，fixing the old building may be better.Gradually，architects and builders are developing knowledge about renovation and preservation，bringing imagination and creativity to the job.

5．In the United States，renovating old creativity to the job .

A．has a long history B．is a new trend

C．is still unpopular D．is out of date

答案　B

解析　细节理解题。根据文章最后一段的句子"Gradually，architects and builders are developing knowledge about renovation and preservation，bringing imagination and creativity to the job."可知，在美国，将旧的创造力翻新使用是一个新潮流。故选B。

6．What's the purpose of this passage?

A．Call on people to renovate old buildings.

B．Report a change­renovation in America.

C．Encourage people to make use of old buildings.

D．Introduce a new method of renovating old buildings.

答案　B

解析　写作目的题。通读全文可知，文章主要描述了美国的一种变化--翻新旧建筑。故选B。

7．Why did the passage mention Chirardelli Square and Trolley Square?

A．To introduce us some successful building renovations.

B．To make them known to the public.

C．To discuss whether they were worth restoring.

D．To tell us any old buildings can be renovated.

答案　A

解析　推理判断题。根据文章第二段的句子"A change began in the 1990s with a number of well­advertised projects.They included..."可知，文章提到Chirardelli Square 和 Trolley Squar