Opportunity means you are given a chance to do something special. It also makes you special because other kids don't have the same opportunity. For example, if you are interested in writing, then you can choose to join a journalism(新闻工作) camp. You may have the opportunity of meeting famous journalists there.

　　Challenge means you are given a task. You must finish the task and succeed in overcoming the challenge. Then you will have a sense of accomplishment(成就). For example, you could take a lifeguard(救生员) course at some summer camps. If you pass the exam, then you will receive a certificate(证书) to become a real lifeguard.

　　This also leads to the third and most important goal of every great summer camp---personal growth. It doesn't mean growing taller and stronger or more beautiful. It means seeing yourself improve, learning something new and doing something you didn't know or believe you could do before. It also means becoming more confident in yourself.

　　So in the future when choosing your next summer camp, remember to ask yourself: is it a special opportunity? Is it challenge? Will I grow?

　　But what about friendship, fun and joy? These will all happen naturally when you have the right goals at summer camps!

　　21. Which is the writer's opinion?

　　　A. All the summer camps are the same

　　　B. Summer camps help you understand your research

　　　C. All great summer camps have the same main goals

　　　D. There are too many summer camps nowadays

　　22. What is the most important thing for a child to learn from camps?

　　　　A. He knows how to take opportunities

　　　B. He gets to learn new life-saving skills

　　　C. He will grow taller and stronger

　　　D. He can improve and become more confident

　　23. What does the last paragraph tell us?

　　　A. It's hard to make real friends at summer camps

　　　B. With the right goals, you can have fun while learning at camp

　　　C. You can't have fun if you do not have other goals

　　　D. Summer camps are all about how to have fun

　　 B

　　When you are traveling in Thailand，which means of transport is the best choice?

　　You can rent a variety of motorbikes or bikes in Thailand.It seems to be very popular in most of the beaches and islands along the places in the north.The most popular bikes are the little 125 cc Honda Dream which you can get for about 150 baht(铢) a day or as little as 3,000 baht per month，making it the cheapest way to tour Thailand for the people from other countries.

　　Sometimes you will have to go somewhere by taxi.When you are in cities in Thailand，especially in Bangkok，always remember to get a taxi that is going on the roads.Some drivers outside hotels refuse to use the milometer(计程表)．They will ask a price which is several times the price when they use the meter!

The quality of the roads in Thailand is generally pretty good，so renting cars is another way to get around.The big car rental companies may offer you slightly older cars at a very reasonable(合理的) price.It is a little surprising considering that the cost of buying a car in