The scientists from the Lockheed Space Company (公司) work in Felton, California, with the h

The scientists from the Lockheed Space Company (公司) work in Felton, California, with the help of a computer. But the computer is placed in Sunnyside, about 80 kilometers away. What the scientists input is sent by telephone lines to the computer, and after a time, copies of the designs are needed back in Felton as possible. Lockheed people have tried several ways of sending the prints (印刷品), but the most effective seems to be by pigeon (鸽子). Are pigeons really used to carry messages in these days? They are, and they send the prints faster and cheaper than any other way.
Human (人类的) messengers (persons carrying messages) are much more expensive and slower than the pigeons. The road to Felton goes through the mountains, and the driving is not easy. An electronic printout system(电子印刷系统) could do the work in Felton, but at a cost of 10 dollars a print. Pigeons carry the designs for about 1 dollar each.
Now Lockheed people have ten pigeon messengers. The pigeons do the work, and they have made Lockheed more famous. You can often read the news about the pigeons in the newspapers around the world.
【小题1】The story is mainly about .A．Felton, CaliforniaB．the scientistsC．how to work with computersD．sending prints by pigeon【小题2】This story is unusual because pigeons .A．don’t like carrying thingsB．are often cheap to keepC．seem out of place in the space ageD．aren’t friendly to the scientists【小题3】Something that’s effective（有效的） .A．usually costs moreB．is something that worksC．is often unhappy D．is often don by animals【小题4】Which happened first?A．Pigeons were used as messengers.B．Human messengers were used.C．What the scientists input was sent to the computer.D．Scientists got their designs.【小题5】Lockheed likes the pigeons because they .A．do the work at low costB．get their pictures on televisionC．understand the computerD．make the scientists pleasedD

(答案→)D 解析：【小题1】理解归纳题，根据文中语句理解归纳可知。【小题2】理解归纳题，根据文中语句理解理解可知。【小题3】细节理解题，根据文中语句“Now Lockheed people have ten pigeon messengers. The pigeons do the work, and they have made Lockheed more famous.”理解可知。【小题4】细节理解题，根据文中语句“But the computer is placed in Sunnyside, about 80 kilometers away. What the scientists input is sent by telephone lines to the computer, and after a time, copies of the designs are needed back in Felton as possible.”理解可知。【小题5】细节理解题，根据文中语句“An electronic printout system could do the work in Felton, but at a cost of 10 dollars a print. Pigeons carry the designs for about 1 dollar each.”理解可知。

这个答案应该是对的