题目内容

________ air traffic is closely controlled, flying is relatively safe.

A.
Unless
B.
As soon as
C.
Although
D.
Once

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But still there is a danger that grows every year．Airliners get larger．Some airplanes can hold over 300 passengers．And the air itself becomes more and more crowded．If one giant airliner crashed into another in mid-air, 600 lives could be lost．

．Air traffic controllers tell the pilot exactly when to turn, when to climb, and when to come down．The air traffic controllers around a busy airport like London-Heathrow may handle 2500 planes a day．Not all of them actually land at the airport．Any plane that flies near the airport comes under the orders of the controllers there．

Recently such a disaster almost happened．One, with 69 passengers, had come from Toronto, and the other, with 176 passengers, from Chicago, An air traffic controller noticed on his radar screen that the two planes were too close to each other．He ordered one to turn to the right and to climb．But he made a mistake．He ordered the wrong plane to do this．Fifteen seconds later it flew directly in front of the second plane．They avoided each other by the smallest part of a second．The distance between them was less than that of a large swimming pool. .

A． Even a small mistake on their part could cause a disaster．

B． Two large jets were flying towards the airport．

C． Nowadays people like traveling more by air than by car．

D． Today, air travel is far safer than driving a car on a bus motor-way．

E． This is an example of the danger that grows every year．

F． In a word, air travel is more dangerous, we should choose others．

G． From the moment an airliner takes off to the moment it lands, every movement is watched on radar screen．

认真阅读下列短文，并根据所读内容回答问题。

American pilot Frank Webb first flew a glider at the age of 14, made his first flight alone on his．16th birthday and got his commercial pilot's licensee （执照）on his 18th birthday．

After serving in the US Navy for 20 years, being a Boeing flight instructor, and working with Alaska Airlines for more than three years, Webb signed a contract with Shenzhen Airlines last May to captain domestic routes in China．As an experienced pilot, he still feels the same nervousness as he felt on his first fight.

Captain Webb said that the "Sept．11" incident did not have a direct influence on his decision to move to China to work．"Safety is in fact tighter in the United States and I am not worried about a terrorist attack," he said．"The main reason I came to China was that my children will have a chance to see the world and experience international living．"

Webb has not experienced any in-flight emergencies（紧急情况） during his term in China although he said the weather here was generally more changeable than in the United States．"The weather changes tend to be great from north to south．We may be flying in a snow storm in Harbin, and then later that same day we may be flying through a tropical rain shower approaching Shenzhen," Webb said．

While Webb had more flexibility（灵活性） to deal with the weather in the United States, he said air traffic control in China was more strict and allowed fewer deviations（偏离）．

Speaking of planes often being late in China, Webb said that in America, being late was one of the few things that would get him in trouble．"In China, on the other hand, it seems there are many things that can get you in trouble with the boss, but being late is not one of them．" Webb does everything in his power to keep his flights on schedule．

"They provide really excellent service during flights．Western flight attendants just serve passengers．But the Chinese attendants will also check on the crew to see if we need anything," Webb said．

Why did Webb sign a contract with Shenzhen Airlines? （no more than 20 words）

What is "glider " （in Paragraph 1）? （no more than 5 words）

What in the flight Webb met in China increased his difficulty? （no more than 5 words）

Is Webb's flight often late? Why? （no more than 20 words）

What can you learn from Webb's words in the last paragraph? （no more than 10 words）

According to the air traffic rules, you______switch off your mobile phone before bearding.

A. may B. can C. would D. should

According to the air traffic rules, you ___ switch off your mobile phone before boarding.

According to the air traffic rules, you should ________ off your mobile phone before

boarding.

A. cut B. put C. call D. switch

________ air traffic is closely controlled, flying is relatively safe.

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