Few people realized then, ________________________ until two years later.

A、did they

B、were they

C、didn’t they

完型填空

On May 27, 1995, our life was suddenly changed. It happened a few minutes past three, when my husband, Chris, fell from his horse as it jumped over a fence. Chris was paralyzed (瘫痪) from the chest down, {able; unable; suitable} to breathe normally. As he was thrown from his horse, we entered into a life of disability with lots of unexpected challenges. We went from the “haves” to the “have-nots”. Or so we thought.

Yet what we discovered later were all the gifts that came out of sharing difficulties. We came to learn that something {terrible; practical; wonderful} could happen in a disaster. All over the world people cared for Chris so much that letters and postcards poured in every day. By the end of the third week in a medical center in Virginia, about 35,000 pieces of {news; paper; mail} had been received and sorted. As {patients; a family; nurses}, we opened letter after letter. They gave us comfort and became a source of strength for us. We use them to encourage ourselves. I would go to the pile of letters marked with “funny” if we need a laugh, or to the “disabled” box to find advice from people in wheelchairs or even in bed living happily and {successfully; bitterly; weakly}. These letters, we realized, had to be shared. And so here we offer one of them to you. "

ed with a fan-like toy that spun upwards and fell back to the earth as rotation ceased. Leonardo da Vinci conceived the first mechanical apparatus, called a "Helix", which could carry a man straight up, but this was only a design and was never tested.

The ancient dream was finally realized in 1940 when a Russian engineer piloted a strange looking craft of steel tubing with a rotating fan on top. It rose awkwardly and vertically into the air from a standing start, hovered a few feet above the ground, went sideways and backwards, and then settled back to the earth. That vehicle was called a helicopter.

Imaginations were fired. Men dreamed of going to work in their own personal helicopters. People anticipated that vertical flight transports would carry millions of passengers as do the airliners of today. Such fantastic expectations were not fulfilled. The helicopter has now become an extremely useful machine. It excels in military missions, carrying troops, guns and strategic instruments where other aircraft cannot go. Corporations use them as airborne offices, many metropolitan areas use them in police work, construction and logging companies employ them in various advantageous ways, engineers use them for site selection and surveying; and oil companies use them as the best way to make offshore and remote work stations accessible to crews and supplies. Any urgent mission to a hard-to-get-to place is a likely task for a helicopter. Among their other multitude of uses: deliver people across town, fly to and from airports, assist in rescue work, and aid in the search for missing or wanted persons.

According to the passage, people expect that______.

A．helicopters could eventually replace the airliners of today

B．their imaginations fired by the Russian engineer's invention would be realized in the future

C．their fantastic expectations about helicopters could be fulfilled by airliners of today

D．helicopters would someday be able to carry millions of people from place to place as airliners are now doing

A.have defied

B.have denied

C.have realized

D.have researched

it' s not as difficult as you think," saysKaren Jonaitis, a woman, last year, at 47, earned a bachelor' s degree inbusiness administration at a college. "I realized that I would not move upin my career without a degree. " A generation ago, Jonaitis would have beena rarity(稀罕)incollege. Today about 6 million people aged25 or older are studying in Americaninstitutions of higher learning. Whether they are returning to improve jobskills or for the love of learning, adults no longer see age as a deterrent(障碍).Most people jump at the oppor- tunity to do something new. Some ofthem make changes they' d been thinking about all their lives. Others re- turnto school out of economic necessity. New developments in neuroscience(神经科学)and psychology areconfiring that there are few age limits on how much the brain can absorb and for how long--if you stay active.Continuing to learn keeps us mentally in shapeand able to learn more. On mental tests, experts discovered, half to two-thirdsof the people in their 70s were as intellectually quick as people in their 30s.Those who fell below average tended to be people who had not made a lifelonghabit of reading. They also were less physically active. Many adult students say learning is easierfor them today. They bring different skills to the classroom, and they' reless upset if something goes wrong. They have a real thirst, a real desire tolearn. A life-long habit of reading and physicalactvifies can keep_________________in good condition.

A. our mind

B. our body

C. our age

D. our nerves

sive than development, so reading of programs by humans is as important as(73)them.

A．editing

B．writed

C．written

D．writing

A. people realized

B. realized people

C. did people realize

D. had people realized

A、At

B、On

C、With

D、In

sive than development,so reading of programs by humans is as important as (73) them.

(73) A．editing

B．writed

C．written

D．writing

People must be () to the responsibility to their own nation.

A、woken

B、realized

C、known

D、awakened