[单项选择]Our research has not shown us anything so far, so there is little ______ to continue with it.
A. impatience
B. incentive
C. impulse
D. initiative

[单项选择]Our research has not shown us anything so far, so there is little ______ to continue with it.
A. impatience
B. incentive
C. impulse
D. initiative

[单项选择]Since our research so far has not produced any answers to this problem, we need adopt a different ______ to it.
A. approach
B. way
C. means
D. method

[单项选择]Jane has said little so far, responding only briefly when______.
A. spoken
B. speaking to
C. speaking
D. spoken to

[单项选择]The safety inspector has advised us that our health and safety facilities are more than （）.
A. considerable
B. decent
C. adequate
D. accountable

[单项选择]

Passage 4
Sally Kemmerer has, so far, escaped Northern California’s rolling blackouts.
But up on the roof for her Oakland home, workers are tapping into, perhaps, the most reliable power source, the sun. It could mean no more worries about blackouts or power rates.
Sally Kemmerer, homeowner says, "I hope that we’ll be able to zero out, you know, our electric bill. I mean that’s definitely our goal."
Turning the sun’s rays into electricity is, of course, nothing new.
But California’s power crisis has cast a new light on the technology.
Gary Gerber, a solar power contractor, says, "I might have been getting, say three phone calls a week a couple of months age. I’m getting six a day now, it’s completely crazy."
Alternative energy is even more attractive, thanks to a state rebate program. So far this month, California’s energy commission has received 200
A. to lose a special item or treasure
B. to gain solar power
C. to pay for more reliable electrical power
D. to owe the electric utility company nothing

[单项选择]Not a ______ has been found so far that can help the police find the criminal.
A. fact
B. clue
C. symbol
D. sign

[单项选择]The organization has so far raised $2.5 million to finance bone ______trans- plants for children.
A. marrow
B. moron
C. mussel
D. mire

[单项选择]Our teacher asked us ______so much noise.

[单项选择]In the past ten years, Jack has been with us, so I think he has proved that he _______ respect from everyone of us.
A. qualifies
B. expects
C. reserves
D. deserves

[单项选择]Most people would agree that, although our age far surpasses all previous ages in knowledge, there has been no correlative increase in wisdom.
A. improves
B. precedes
C. imposes
D. exceeds

[单项选择]He said that he would write to us but so far we ______ from him.

[单项选择]He said that he would write to us but so far we（）from him.


A. didn't hear
B. haven't heard
C. should not hear
D. hadn't heard.

[单项选择]In doing so, however, he has shown not that art assists scientific understanding, but that scientific insight can provide a ______ stimulus to some of the most powerful of artistic interpretations.
A. graceful
B. handful
C. fruitful
D. hopeful

[单项选择]So far no one has been able to account for the cause of the accident.
A. assess
B. explain
C. describe
D. investigate