As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been   16  only once — for a woman who had merely fainted. But the   17  made me quite curious about how   18  this kind of thing happens. I wondered what I would do if   19  with a real midair medical emergency — without access   20  a hospital staff and the usual emergency equipment. So   21  the New England Journal of Medicine last week   22  a study about in-flight medical events, I read it   23  interest.
　　The study estimated that there are a(n)   24  of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not   25 ; fainting and dizziness are the most frequent complaints.  26  13% of them — roughly four a day — are serious enough to   27  a pilot to change course. The most common of the serious emergencies   28  heart trouble, strokes, and difficulty breathing.
　　Let’s face it: plane rides are   29 . For starters, cabin pressures at high altitudes are set at roughly      30  they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty   31 , but passengers with heart disease   32  experience chest pains as a result of the reduced amount of oxygen flowing through their blood.   33  common in-flight problem is deep venous thrombosis — the so-called economy class syndrome (综合症).   34  happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation (立法), flights with at      35  one attendant are starting to install emergency medical kits to treat heart attacks.

As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been   16  only once — for a woman who had merely fainted. But the   17  made me quite curious about how   18  this kind of thing happens. I wondered what I would do if   19  with a real midair medical emergency — without access   20  a hospital staff and the usual emergency equipment. So   21  the New England Journal of Medicine last week   22  a study about in-flight medical events, I read it   23  interest.

　　The study estimated that there are a(n)   24  of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not   25 ; fainting and dizziness are the most frequent complaints.  26  13% of them — roughly four a day — are serious enough to   27  a pilot to change course. The most common of the serious emergencies   28  heart trouble, strokes, and difficulty breathing.

　　Let’s face it: plane rides are   29 . For starters, cabin pressures at high altitudes are set at roughly      30  they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty   31 , but passengers with heart disease   32  experience chest pains as a result of the reduced amount of oxygen flowing through their blood.   33  common in-flight problem is deep venous thrombosis — the so-called economy class syndrome (综合症).   34  happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation (立法), flights with at      35  one attendant are starting to install emergency medical kits to treat heart attacks.

Shower Radio—Warranty(保单)and Directions

Introduction

Congratulations! You are now the owner of a So Fine Shower Radio! It is sure to provide entertainment for many hours. In addition, the radio features a timer（计时器）for those days when you are in a hurry.

Before using the radio, please read all directions, fill out and mail in the warranty card, and put warranty information in a safe place. Although we do not expect problems with the radio, you may need to refer to the warranty information at a later time.

Warranty

This radio is warranted for a one-year period that begins on the date of purchase. If it fails to work because of a problem of materials, please return it to the following address; So Fine Radio Corp.,1279 Delta Way, Monga, CA97623.

We will not pay shipping costs for returning the radio to us. We will either repair or replace the radio. Please allow at least four weeks for looking at the problem and repairing the radio. If you have not heard from us within six weeks, call our customer service department at 1-800-123-4567.

Radios that are returned to us for problems other than a problem of materials will be affected by service fee as well as the cost of the repairs. Customers will be informed of the charge by postcard. Radios will not be returned to customers until these fees are paid.

Directions

Please read all directions before using it.

Please note that this radio is designed and built to operate well in a damp environment. The self-contained batteries and circuits are contained in the enclosed space that will bear heat and dampness.

To Operate the Radio

1．Put two AA batteries in the enclosed space at the back of the radio. Be certain to follow the diagram, or the batteries will not provide electricity. The radio should NOT be adapted(改装) in order to be fixed into the wall; this will damage the waterproofing(防水).

2．Turn the POWER dial in a clockwise direction until it clicks. Continue turning the dial until the desired volume is achieved.

3．To find the desired station, press the station selector button. The tuner(调谐器)will automatically go to the next highest signal. The station’s call number will be visible in the digital screen. When the station with the highest frequency has been reached, the selector will start again at the lowest frequency.

4．To switch between AM and FM stations, move the sliding AM/FM switch.

To Operate the Timer

1．Press the Timer Set button. Each time the button is pressed, five minutes will be put on the timer. The amount of time on the timer will be visible for five seconds on the digital screen.

2．When the time on the timer doesn’t work, a beep will sound for ten seconds. The timer may be reset again after one minute.

Troubleshooting(发现并修理故障)

Before returning the radio for service, please check the following items:

Problem: Radio cannot be heard.

1．Check batteries to be certain that they still have power and are put in correctly.

2．Check power/volume control.

Problem: Timer does not work.

1．Check batteries to be certain that they still have power and are put in correctly.

2．Follow directions above for setting

3．Turn the power control on. The timer will not work when the radio is not on.

4．Adjust the volume control which regulates the volume of the beep as well as the radio volume.

46．The digital screen will show both_______.

A. the call number and time on the timer    

B. the AM/FM indicator and the radio station

C. the time remaining on the timer and the date      

D. the volume level and the AM/FM indicator

47．Which of the following is covered within this passage?

A. Who will benefit from using the radio?        B. How to adapt the radio?

C. How to operate the radio and the timer?       D. Where to purchase the radio?

48．What question might a reader still have about this product?

A. How can I know the service fee?           

B. How is the radio placed in the shower?

C. Where should I send a nonworking radio?  

D. What kind of batteries does the radio use?

49．According to the passage, what should you do before returning the radio for service?

A. Contact the store where you purchased it.         

B. Call the producer for a repair number.

C. Consult the telephone book for local repair service. 

D. Check whether certain problems exist.

Shower Radio --- Warranty (保单) and Directions
Introduction
Congratulations! You are now the owner of a So Fine Shower Radio! It is sure to provide entertainment for many hours. In addition, the radio features a timer for those days when you are in a hurry.
Before using the radio, please read all directions, fill out and mail in the warranty card, and put warranty information in a safe place. Although we do not expect problems with the radio, you may need to refer to the warranty information at a later time.
Warranty
This radio is warranted for a one-year period that begins on the date of purchase. If it fails to work because of a problem of materials, please return it to the following address: So Fine Radio Corp, 1279 Delta Way, Monga.
We will not pay shipping costs for returning the radio to us. We will either repair or replace the radio. Please allow at least four weeks for looking at the problem and repairing the radio. If you have not heard from us within six weeks, call our customer service department at 1-800-123.
Radios that are returned to us for problems other than a problem of materials will be subject to service fee as well as the cost of the repairs. Customers will be informed of the charge by postcard. Radios will not be returned to customers until these fees are paid.
Directions
Please read all directions before using it.
Please note that this radio is designed and built to operate well in a damp environment. The self-contained batteries and circuits (线路) are contained in the enclosed space that will bear heat and humidity.
To Operate the Radio
1. Put two AA batteries in the enclosed space at the back of the radio. Be certain to follow the diagram, or the batteries will not provide electricity. The radio should NOT be adapted in order to be fixed into the wall; this will damage the waterproofing (防水).
2. Turn the POWER dial in a clockwise direction until it clicks. Continue turning the dial until the desired volume is achieved.
3. To find the desired station, press the station selector button. The tuner (调谐器) will automatically go to the next highest signal. The station’s call number will be visible in the digital screen. When the station with the highest frequency has been reached, the selector will start again at the lowest frequency.
4. To switch between AM and FM stations, move the sliding AM/FM switch.
To Operate the Timer
1. Press the Timer Set button. Each time the button is pressed, five minutes will be put on the timer. The amount of time on the timer will be visible for five seconds on the digital screen.
2. When the time on the timer doesn’t work, a beep will sound for ten seconds. The timer may be reset again one minute.
Troubleshooting
Before returning the radio for service, please check the following items:
Problem: Radio cannot be heard.
1. Check batteries to be certain that they still have power and are put in correctly.
2. Check Power/Volume Control.
Problem: Timer does not work.
1. Check batteries to be certain that they still have power and are put in correctly.
2. Follow directions above for setting timer.
3. Turn the power control on. The timer will not work when the radio is not on.
4. Adjust the volume control which regulates the volume of the beep as well as the radio volume.
【小题1】The digital screen will show both ______.