Seeing a place by bike is one of the most exciting ways of
The route around the vast Qinghai Lake will take 4 to 7 days of cycling. The total
At a steady and comfortable pace, this route can be completed
For the best weather and the clearest views of the
2 . 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.
1. What might be the main topic of the passage?| A．The ways to get upgraded on a plane. |
| B．How to get on the flight safely and on time. |
| C．The best ways to get free flight tickets. |
| D．How to save a life on a plane quickly. |
| A．The person who always obeys the rules on the flight. |
| B．The person who doesn't have to look after a patient. |
| C．The person who is a friend of the flight attendants. |
| D．The person who flies a lot and has a long flying distance. |
| A．Because they would like to talk with flight attendants kindly. |
| B．Because they want to have a better rest after a long journey. |
| C．Because they need to treat a passenger who is in emergent condition. |
| D．Because they are tired of staying with common passengers. |
| A．A life guide. | B．A travel guide. |
| C．A shopping guide. | D．A pilot guide. |
3 . China is a land of bicycles. At least it was back in 1992 when I traveled the country. Back then everyone seemed to be riding a bicycle. Millions of them, all black. Cars were rare. Yet since my arrival in Beijing last year, I’ve found the opposite is true. There are millions of cars. However, people still use their bicycles to get around. For many, it’s the easiest and cheapest way to travel today. Bicycles also come in different colors --- silver, green, red, blue, yellow, whatever you want.
It’s fun watching people biking. They rush quickly through crossroads, move skillfully through traffic, and ride even on sidewalks. Bicycles allow people the freedom to move about that cars just can’t provide.
Eager to be part of this aspect of Chinese culture, I decided to buy a bicycle. Great weather accompanied my great buy. I immediately jumped up on my bicycle seat and started home.
My first ride home was orderly (守秩序的). To be safe, I stayed with a “pack” of bikers while cars on the streets came running swiftly out of nowhere at times. I didn’t want to get hit. So I took the ride carefully.
Crossing the streets was the biggest problem. It was a lot like crossing a major highway back in the United States. The streets here were wide, so crossing took time, skill and a little bit of luck.
I finally made it home. The feeling on the bicycle was amazing. The air hitting my face and going through my hair was wonderful. I was sitting on top of the world as I passed by places and people. Biking made me feel alive.
1. According to the author, why are bicycles still popular in China today?| A．Because they are traditional and safe. |
| B．Because they are convenient and inexpensive. |
| C．Because they are colorful and available. |
| D．Because they are fast and environment friendly. |
| A．to ride it for fun | B．to use it for transport |
| C．to experience local culture | D．to improve his riding skills |
| A．It was boring. | B．It was difficult. |
| C．It was lively. | D．It was wonderful. |
| A．The author enjoyed showing off his biking skills. |
| B．The author was annoyed by the air while riding. |
| C．The author was praised by the other bikers. |
| D．The author took great pleasure in biking. |
