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.

   As we all know, books are very important to us. They can provide us with many useful things. 【小题1】 However, how can you become a good reader? Do you know what effective ways to read are? I suggest you should follow these tips.

【小题2】 Libraries are wonderful places to find a variety of books. What’s more, you can fix your attention on the book in this quiet, comfortable place because you won’t be disturbed. You can also relax yourself in this comfortable place.

Pick out reading materials that most interest you. Finding materials that interest you is the first important step in improving your reading. 【小题3】 If you have trouble understanding what the author’s trying to say, you may not enjoy the book. If you are interested in a book, you will enjoy reading it again and again.

Know what your purpose is. If you want to learn the language, you should learn the sentence structures, the useful words and expressions that you may need to use later. 【小题4】 The more words you are exposed to, the more your vocabulary will grow. This will help you write a good composition. 【小题5】

   Here are four principles (行为准则) I live by. Whenever I follow these guidelines, I am at my very best, feeling productive and happy.

Devote time.

No matter how talented we may be, it’s wrong to think we can do it all. 【小题1】 The value of our achievements is greatly decided by what we spend our time on. We need to realize that every day we should devote the time to what matters and have the courage to let the unimportant things go.

Focus your attention.

Very often it seems that we just can’t focus our attention, even though we know what we should be doing, right? Resistance (阻力) makes us get disturbed by distractions.【小题2】 Developing a plan for overcoming resistance is important for maximum productivity.

【小题3】

We need to make a balance between work and play, between creation and pleasure.【小题4】 Even if we feel energetic to work long hours, the most effective long-term way is to hold ourselves back when we feel crazy and follow a proper pace instead.

Keep moving on.

More important than setting big goals is to just keep going. I know this goes against most of the “ set great goals for yourself” advice, but it’s what works for me.【小题5】 And it always made me more worried than it helped. Now, what does work for me is to think about how to improve my life and take small steps to make it happen.

—George Orwell