The plane's flight recorders ______ , but analysis of the wreckage has provided some clues. A．

听力原文：M: Is this the check-in counter for Flight 914 to Los Angeles？

W: Yes, but I'm sorry that the flight is delayed because of a minor mechanical problem. Please wait for further notice.

Q: What do we learn from this conversation？

(6)

A．The man goes to a wrong check-in counter.

B．The man has just missed his flight.

C．The plane will leave at 9:14.

D．The plane's departure time remains unknown.

him. He can't see enough to be safe. Flight watch is an instrument intended to help him.

On a screen in front of the pilot, there will be a map of the【21】around the plane. The pilot's own【22】level or height and his own plane at the center of the【23】will show up. On the map any other planes in the airspace will【24】as spots of light with "tails" showing the direction of their light. The flight watch map is【25】for the other planes are not shown at their true【26】, but at their distances away in flying time. This【27】the problem of fast planes being too far away to be seen【28】likely to make contact in seconds and【29】planes that are close enough to be seen but so slow that there's no chance of【30】for, say, ten minutes.

The pilot will be able to see on the screen whether another plane's course conflicts with【31】. The screen will show him the flight number of the other plane, so he can contact air traffic control and ask them about the other plane’s course. Then he can take【32】action if necessary. The screen will show him whether his action puts him【33】from yet another aircraft.

Technically, the【34】will be quite complex. Computers will be necessary on the ground and【35】each aircraft to enable Flight watch to collect data about the plane courses and to calculate the distances between planes. But such small computers are now quite cheap, simple and reliable.

(36)

A．latitude

B．land

C．airspace

D．weather

any flights to ... Are there any other flights When does the plane leave / arrive Which class do you prefer, economy, business or first class I’ll take the ... flight. I’d like to book a single / double room in your hotel. May I reserve a room for the weekend What’s the price of the room How much is it per night What’s the room rate for one night You may pay by credit card, check or in cash. Will you please fill out the registration form That will be fine. I’ll take it.

Please Fasten Your Seatbelts Severe turbulence (湍流) can kill aircraft passengers. Now, in test flights over the Rocky Mountains, NASA (美国航空航天局) engineers have successfully detected clear-air turbulence up to 10 seconds before an aircraft hits it.

Clear-air turbulence often catches pilots by surprise. Invisible to radar, it is difficult to forecast and can hurl (用力抛出去) passengers about the cabin. In December 1997, one passenger died and a hundred others were injured when unexpected rough air caused a United Airlines flight over the Pacific to drop 300 metres in a few seconds.

However, passengers can avoid serious injury by fastening their seatbelts. “It is the only antidote (对策) for this sort of things,” says Rod Bogue, project manager at NASA’s Dryden Flight Research Center in Edwards, California.

The centre’s new turbulence detector is based on lidar, or laser radar, Laser pulses are sent ahead of the plane and these are then reflected back by particles in the air. The technique depends on the Doppler effect. The wavelength of the light shifts according to the speed at which the particles are approaching. In calm air, the speed equals the plane’s airspeed. But as the particles swirl (打漩) in rough air, their speed of approach increases or decreases rapidly. The rate of change in speed corresponds to the severity (激烈程度) of the turbulence.

In a series of tests that began last month, a research jet flew repeatedly into disturbed air over the mountain ridges (山脉) near Pueblo, Colorado. The lidar detector spotted turbulence between 3 and 8 kilometres ahead, and its forecasts of strength and duration corresponded closely with the turbulence that the plane encountered.

Bogue says that he had “ a comfortable amount of time” to fasten his seatbelt. The researchers are planning to improve the lidar’s range with a more powerful beam. The system could be installed on commercial aircraft in the next few years.

第6题：What does “clear-air turbulence” probably mean？ （Paragraph 1）

A．A not very rough storm.

B．Unexpected disturbed air.

C．A kind of visible storm.

D．A storm over mountain ridges.

We learn from the passage that__________

A．the passengers will have a night flight

B．they will have, meals during the flight

C．the plane is going to fly across a sea

D．the plane provides excellent service to its，passengers

the plane just took off. She told him that she would bring him the water in ten minutes.

The air hostess was kept so busy that she forgot to give him the water. As a result, the passenger was held up to take his medicine. Thirty minutes later, when the passenger's ring for service sounded, she hurried over to him with a cup of water, but he refused.

In the following hours on the plane, each time the air hostess passed by the passenger, she would ask him with a smile whether he needed help or not. But the passenger never answered a word.

When he was going to get off the plane, the passenger asked the air hostess to hand him the passengers' booklet. She was very sad. She knew that he would write down sharp words, but with a smile she handed it to him.

Off the plane, she opened the booklet, and smiled, for the passenger put it. “On the flight, you asked me whether I needed help or not for twelve times in all. How can I refuse your twelve sincere smiles？”

That's right! Who can refuse twelve sincere smiles from a person？

操作提示：句子正确选择下拉选项框为“T”;句子错误选择下拉选项框为“F”。

A passenger wants a cup of water because he is thirsty.

The air hostess forgot to give him the water on purpose.

The passenger refused the cup of water.

The passenger didn't write down any sharp words.

This passage tells us that a sincere smile is of no use.

When the statement was made, the plane ______.

(A) was in the course of landing

(B) had already landed

(C) had just taken off

(D) was in the middle of its flight

A．can keep it in a safe place on the plane

B．can take it back from the security staff when the flight is over

C．may not be allowed on the plane

D．will be taken aside and questioned by security guards

阅读理解：判断题

A passenger told an air hostess that he needed a cup of water to take his medicine when the plane just took off. She told him that she would bring him the water in ten minutes.

The air hostess was kept so busy that she forgot to give him the water. As a result, the passenger was held up to take his medicine. Thirty minutes later, when the passenger's ring for service sounded, she hurried over to him with a cup of water, but he refused.

In the following hours on the plane, each time the air hostess passed by the passenger, she would ask him with a smile whether he needed help or not. But the passenger never answered a word.

When he was going to get off the plane, the passenger asked the air hostess to hand him the passengers' booklet. She was very sad. She knew that he would write down sharp words, but with a smile she handed it to him.

Off the plane, she opened the booklet, and smiled, for the passenger put it. “On the flight, you asked me whether I needed help or not for twelve times in all. How can I refuse your twelve sincere smiles？”

That's right! Who can refuse twelve sincere smiles from a person？

操作提示：句子正确选择下拉选项框为“T”;句子错误选择下拉选项框为“F”。

* A passenger wants a cup of water because he is thirsty. {T、F}

* The air hostess forgot to give him the water on purpose. {T、F}

* The passenger refused the cup of water. {T、F}

* The passenger didn't write down any sharp words. {T、F}

* This passage tells us that a sincere smile is of no use. {T、F}