题目内容
Unless they are programmed by humans, computers are nothing more than big pieces of metal. But once _____ what to do, they show extraordinary power in carrying it out.
- A.taught
- B.teaches
- C.teaching
- D.to teach
If you were a pilot flying a plane, and suddenly the engine failed, would you eject (弹出), or stay in? For a pilot, the choice is very difficult. If he ejects, he is wise, but the plane crashes. If he stays in the plane, he risks his life.
Recently, Chinese Air Force pilot Li Feng, 38, faced this choice during a training exercise. It was March 7 and he was flying a Jian-10 (Flghter-10) at 4,500 meters. A warning appeared on the plane’s computer screen. He realized the plane might fail at any moment.
Li Feng did a quick check of the engine and asked the base if he could return. When the fighter was 7km away from the airport, however, the engine stopped working. The plane began to fall at a speed of 25 meters a second from an altitude of 1,160 meters.
Under Air Force rules fighter pilots may eject if their aircraft loses engine power below 2,000 meters and can’t be restarted. Before Li lost contact with the control tower, the commander in the air base asked him to eject. But Li Feng insisted on having another try.
“I knew where the deadline (to abandon the aircraft) was and was prepared for the ejection, but I decided not to give up unless the fighter was totally out of control,” Li recalled during a recent television interview.
After 104 seconds, Li was able to bring the fighter to a safe landing. The plane only suffered slight damage.
“You are a hero! Congratulations!” Li’s teacher, Xu yongling wrote in a text message to him after the landing. He said Li was a cool-headed pilot and very professional.
Li’s brave and calm act not only saved the 200 million yuan aircraft but also gave him invaluable first-hand experience of dealing with an engine emergency.
For his outstanding performance, the Air Force recently awarded him a gold medal.
【小题1】When the engine stopped working, Li Feng _________.
A.was flying a Jian-10 at 4,500 meters | B.saw a warning appeared on the plane’s computer screen |
C.was still calm and cool-headed | D.was asked to stay in, but he ejected |
A.pilots must restart it as soon as possible | B.pilots should repair it as soon as possible |
C.pilots may eject for safety | D.pilots should bring it to a safe landing |
A.Because he had no choice but to stay in the plane. | |
B.Because the fighter was not totally out of control. | |
C.Because he didn’t know how to eject. | D.Because he wanted to get a gold medal. |
A.Flying the Fighter Correctly | B.When to Abandon the Aircraft |
C.How to Deal with an Engine Emergency | D.Bring the Fighter to a safe Landing |
No one knows yet the accurate number of lives which have been lost in this terrible fire .But reports suggest that it is more than one hundred .
A wall of flames fifty feet high and at least one hundred and fifty miles wide is now racing towards the forests and rich farmlands of southern Victoria . Towns less than one hundred miles from Melbourne will be in danger unless the wind changes . People are rushing excitedly into the streets . The police have warned them not to see the fire but many people are doing so .
The cause of the fire is unknown . No rain has fallen in this part of Australia for three months , and the hot , north-west wind from the great central desert is blowing at more than thirty miles an hour .
The firefighters are travelling to the fire by road , rail and air . But it is not easy to get there . Flames and fallen trees have cut off or blocked roads and railway lines . The thick smoke often prevents them from finding the air strips (飞机跑道).
It is said that the fire has brought the greater danger to the country since the Second World War .
【小题1】By the time the article was written , the fire .
A.had just broken out | B.had been put out |
C.was spreading violently | D.was coming to an end |
A.the fire was terrible and dangerous |
B.it was impossible to put out the fire |
C.more than one hundred people died of the fire |
D.to join in the fight against the fire |
A.the fire would soon be controlled by the firefighters |
B.it would be very difficult to put out the fire |
C.the government was paying great attention to the fire |
D.the fire had caused great losses and the airport was in ganger |
A.recent | B.whole | C.rough | D.exact |