With an improved economy，many travelers have been buying first or business class seats，leaving fewer for upgrades（升级）.Here are some strategies for getting a free upgrade.

1. Fly a lot.

This is the most common way to earn a free upgrade. Most airlines reserve some spaces for travelers who fly at least 5，000 miles per year. Five years ago，this meant half or more of domestic（国内的）first class travelers sat up front for free. But now，airlines are selling more high-price seats，so on popular routes it is not unusual for more than 20 travelers to compete for one or two upgrades. But on routes with fewer business class travelers，free upgrades remain more plentiful.

2. Use miles.

If you're not a frequent traveler but still have some miles to fly，you may be able to use them for an upgrade. Be careful，though，as many airlines now ask not just for miles but also a cash co-pay. One example: on flights to Europe，American Airlines charges 5，000 miles，plus $110，for a one-way upgrade from discounted economy class to business class. For most domestic upgrades，American Airlines wants 15，000 miles plus $ 75.

3. Get lucky.

Sometimes airlines overbook coach（经济舱），and a few travelers get no seats. Agents try to ensure the airline's most loyal travelers get the nod（被选中）. Agents usually have some flexibility to make sure the plane is full and takes off on time. So it's the easiest way for them to do it-they might upgrade someone else out of order.

4. Save a life.

Flight attendants don't usually upgrade passengers, even when empty seats remain. Doctors and nurses who answer an emergency call are sometimes an exception. If they comfort a passenger, flight attendants might allow them to sit in business or first class for the rest of the flight.

How to Speak in Public

Many people have a fear of public speaking. They worry that they will lose their words，bore the audience or somehow make a fool of themselves. It is easy to try to avoid public speaking，but that usually doesn't work out. Everyone has to speak publicly at some point in their life. You may give a speech in a class or a meeting. Maybe you'll have to give a speech for some honor you've received. 【小题1】

Relax. 【小题2】 Your audience don't expect you to be perfect. They want you to succeed just as much as you do. If you're thinking you'll forget everything，remind yourself that you are prepared and knowledgeable. Imagine yourself doing well.

Be yourself. You are not Jack Canfield or Tony Robbins. Share your true personality with your audience，and they'll find you reliable. 【小题3】

Know your topic. Try to speak about the subject you know well. Research the topic to make sure that you are correct. Public speaking is easier when you don't feel like a fraud（骗子）.

【小题4】 Choose your message for the group you are speaking to carefully. If you' re giving a public speech, then rude jokes certainly won't be suitable.

Give value. Base your speech on 2 or 3 main points. 【小题5】 They' ll be satisfied if they leave with something they can use, and that is what public speaking is all about.

   Some people don't wish to waste even a second at work. Looking at a computer screen for a long time can cause stress on one's eyes. Sitting and looking at a television screen for hours can also make the eyes tired.

Bookworms love reading and they will make sure they read much more than their bodies can deal with. The strong wish to finish a book may result in fast reading，without taking breaks, which can lead to tired eyes. Reading for a long time in weak light can also cause tired eyes.

More salt-based junk food like burgers，pizzas, etc. and less water also play a role in causing tired eyes. The junk food is a reason for tired eyes for it hasn't enough vitamins（维生素）.

Less sleep causes the eyes to become heavy. Dark circles also develop if one doesn't get enough sleep over a period of time.

If not treated in time，the condition can become worse. Here are some ways to relieve（减轻）a tired eye condition.

Every hour during your day at work, spend a minute relaxing your eyes. Look away from your computer screen and roll your eyes in all directions. Try and blink（眨眼）more often. Look around the room or close your eyes for a minute if you want and then work again. Following these every hour will help relieve the stress on your eyes，and you won't feel so tired after work.

Tea helps relieve tired eyes. Make a cup of hot black tea and pour it into a glass. Hold the glass close to your eyes，so that the vapors from the tea reach your eyes. This will also make you feel fresh.

If your eyes feel very tired at work, go to the washroom and wash your face with cool tap water. The cold water will help relieve the tired feeling. Do this every hour during work and your eyes will feel good.

   Maybe you are an ordinary student. 【小题1】 This is not necessarily so. Anyone can become a better student if he or she wants to. Here’s how:

Plan your time carefully. When planning your work, you should make a list of things that you have to do. After making this list, you should make a schedule of your time. First arrange your time for eating, sleeping, dressing, etc, then decide a good, regular time for studying. 【小题2】 A weekly schedule may not solve all your problems, but it will force you realize what is happening to your time.

Make good use of your time in class. 【小题3】 Listening carefully in class means less work later. Taking notes will help you remember what the teacher says.

Study regularly. When you get home from school, go over your notes, review the important points that your teacher is going to discuss the next day, read that material. 【小题4】 If you do these things regularly, the material will become more meaningful, and you will remember it longer.

Develop a good attitude towards tests. The purpose of a test is to show what you have learned about a subject. The world won’t end if you don’t pass a test, so don’t be over worried.

【小题5】 You will probably discover many others after you have tried these.

   It’s great fun to explore new places, and it may be like an adventure, even when you know you’re not the first to have been there. But to make sure not to get lost or waste time going round in circles, the following tips may be helpful.

• Do the map reading if you’re being driven somewhere. It’ll be easier if you keep the map following the direction you’re traveling in. Keep looking ahead so that you can give the driver lots of warning before having to make a turn or you’ll have to move to the back seat.

• Get a group of friends together and go exploring. You’ll need a good map, a compass, a raincoat, a cell phone to call for help in case you get lost, and a bit of cash for emergencies. Tell someone where you’re going before you set out and let him know what time you expect to be back. The purpose of the activity is in not getting lost, not in seeing how fast you can go, so always stick together, waiting for slower friends to catch up.

• See if your school or a club organizes orienteering (越野识途比赛), in which you need a map and a compass to find your way. This can be done as a sport, with teams trying to find the way from A to B (and B to C, etc.) in the fastest time, or simply as a spare-time activity. It enables you to be familiar with the use of maps and compasses and gain some practical skills. In some way, it’s not only good fun, but also a great way to keep fit.

No matter which way you choose, it’s not only good fun, but a great way to keep fit.