[单项选择]Do patents help or hinder innovation Instinctively, they would seem a blessing. Patenting an idea gives its inventor a 20-year monopoly to exploit the fruit of his la- bor in the marketplace, in exchange for publishing a full account of how the new product, process or material works for everyone to see. For the inventor, that may be a reasonable trade-off. For society, however, the loss of competition through the granting sole rights to an individual or organization is justified only if it stimulates the economy and delivers goods that change people’s lives for the better.
Invention, though, is not innovation. It may take a couple of enthusiasts working evenings and weekends for a year or two--not to mention tens of thousands of dollars of their savings--to get a pet idea to the patenting stage. But that is just the beginning. Innovations based on patented inventions or discoveries can take teams of researchers, engineers and marketing experts a decade or more, and tens of million
A. It is a natural tendency for people to believe that innovation is stimulated by patents.
B. The inventors cannot reap the fruits of their patents until many years later.
C. Individuals and organizations welcome competitions brought about by the patentees.
D. Patenting can never be a blessing to society if it fails to benefit people at larg

[单项选择]

Do patents help or hinder innovation Instinctively, they would seem a blessing. Patenting an idea gives its inventor a 20-year monopoly to exploit the fruit of his la- bor in the marketplace, in exchange for publishing a full account of how the new product, process or material works for everyone to see. For the inventor, that may be a reasonable trade-off. For society, however, the loss of competition through the granting sole rights to an individual or organization is justified only if it stimulates the economy and delivers goods that change people’s lives for the better.
Invention, though, is not innovation. It may take a couple of enthusiasts working evenings and weekends for a year or two--not to mention tens of thousands of dollars of their savings--to get a pet idea to the patenting stage. But that is just the beginning. Innovations based on patented inventions or discoveries can take teams of researchers, engineers and marketing experts a decade or more, and
A. "give up".
B. "break down".
C. "drop off".
D. "fall over".

[单项选择]What do enzymes do to help start a biochemical reaction ？（）
A. Provide extra energy to start the reaction.
B. Raise the temperature of the chemicals.
C. Release a chemical needed to start the reaction.
D. Lower the amount of energy needed to start the reaction.

[单项选择]—Do you think you could do without help
—（）.This is not the first time for me.

A. Take care
B. Hurry up
C. Not exactly
D. Don't worry

[单项选择]How do most newspapers help people with problems A. They publish their letters and ask readers to answer them. B. They pass their letters to Abby and Ann Landers. C. They publish letters from readers and answers from doctors , lawyers or educators.

[单项选择]—Do you think you could do without help
—（）. This is not the first time for me.
A. Take care
B. Hurry up
C. Not exactly
D. Don’t worry

[单项选择]

Each day, computers help millions of people do the job more efficiently. For example, they can help managers decide on a future course of action, and they can then help with the follow-up checks on performance to see if planned goals are being achieved. By using accurate and timely facts supplied by database management software, a manager can do a better job of identifying problems and opportunities. The facts retrieved (检索；使恢复 ) by such software can then be manipulated by a spreadsheet package to help the manager plan to alternate courses of action. And managers may not need to spend as much time in controlling when a computer can respond with a triggered report if actual performance varies from what was planned. The time saved in controlling may allow managers to give more attention to employees’ concerns, and this, in turn, may result in improved morale (士气).
But employment benefits certainly aren’t restricted to managers. Health care researchers and other
A. Helping managers decide on a future course of action.
B. Helping managers check if planned goals are reached.
C. Helping managers save time in writing a report.
D. Helping managers design a spreadsheet package.

[填空题]Mother will need an ______ (addition) help to do the work.

[填空题]

There are many things we can do to help ourselves to live longer. Fasten the safety belts each time we get into a car. Each year 10,000 lives could be saved by the use of safety belts. It is surprising then that not everyone wears them. Some people say they will never be in an accident be cause they are careful drivers. Such an excuse is weak. In fact, it is false. I have a friend named Jane Tailor. She is a safe driver, I think. One day, she was driving her car to the airport, but she did not have her safety belt on.: Suddenly a huge truck went through the Ted light. She was hit by it. The next thing she knew was that she was in the hospital. She suffered from a head injury and broken bones.

What is this short talk about
The importance of（）