In the last 20 years the word “knowledge” has become an adjective. As personal computers started  16   on every desktop, key information was stored in knowledge bases   17   to knowledge networks. Most of the “  18  ” on which the knowledge economy(经济) is built is actually just information－data, facts and basic business intelligence(智能).

With the Internet, you can get   19   to almost all the information throughout the entire world. Web   20   can help deal with the information in ways that were not   21   only a decade ago. But the information we use does not   22   into the knowledge we need.

For example, the knowledge you   23   throughout your working life can make you  24

in the organization you work for. Your ability to   25   it with the knowledge of co-workers and companions can make the difference between success and failure.

Researchers are   26   technology that can “watch” you working, then make   27   about related subjects or ideas.   28  , even if the software makes a bad guess, it can   29   be valuable in helping get new ideas. Computer scientists are also   30   progress against a long-held   31   of “intelligent agents” that provide just-in-time information to help the work you’re doing. Experimental programs can test your ideas   32   commonsense logic, acting   33   “experts” to help guide your thinking.

These technologies help people join their own ideas with some   34   knowledge far more efficiently than was previously(先前) possible. But they also   35   a key problem unsolved: how to unearth all the new ideas that are being produced around the world.

 I _________ you, but I didn’t think you would listen to me.

   A. could have told           B. must have told

 If you live in the country or have ever visited there, _________ are that you have heard birds singing to welcome the new day.

   A. situations            B. facts          C. chances            D. possibilities

I ______ for three hours when I suddenly became sick.

   A. had been working                     B. would work

   C. have worked                            D. am working

The Pacific region(地区) will be one of the fastest growing areas in the world in the 21st century. _________ shouldn’t be any doubt about it now.

    A. It        B. That           C. This           D. There

---What can I offer you? Coffee, tea, orange juice, iced water…?

   ---________.

   A. Yes, please. Thank you.                    B. I don’t care. Whatever.

   C. Go ahead. None of my business        D. Don’t worry. Too much trouble.

_______ twice a year, whether it is a car or bus or a truck, is the rule that every driver must obey in this city.

     A. Examining                                B. Examined         

C. Being examined                         D. Having been examined

The government has taken some measures to solve the shortage of electricity, but it may be some time __________ the situation improves.

   A. since           B. when         C. unless        D. before

 ________ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.

   A. That            B. What          C. In spite of what        D. Though what

---Hey, Kate . Happy New Year! ______________?

   ---OK, I guess. My grandma kept cooking and cooking, so I just kept eating.

   A. How was your break                 B. How is your grandma

   C. Where did you go for holiday     D. What did you do in your holiday