Most students take public transport to school or ride a bicycle. Some areas have school buses. It is not common for parents to drive students to school.

　　Private clubs

　　In many countries, schools offer official sports and after-school activities. This is less common in Germany. After-school activities are usually organized through private clubs. There are clubs for things like soccer, dance, choir, theatre and almost everything else. Once you are in Germany, ask around at school and talk to other students to find out what private clubs are in your area and meet your interests.

　　Different states, different schools

　　Each of Germany's 16 states has its own slightly different school systems. The school system in Brandenburg will be a little different from the system in Bavaria, for example. Where you live, your knowledge level and your age will decide what school you can attend.

21. For high school students in Germany, which is NOT the common transport to school?

　A. School buses B. Parents' cars C. Public transport D. Students' bicycles

22. From the passage, we can learn that in Germany _______.

　A. all kinds of high schools are for college

　B. age is not important for attending schools

　C. students can take part in after-school activities from 8:00 a. m .to 3:30 p.m.

　D. students can join private clubs to meet their interests

23. What can be the best title for this article?

　A. German Private Clubs B. German Public Transport

　C. German High Schools D. German College Systems

　　The beach may seem like an inviting place to run on a cool summer morning, but is running on the sand good for your body? It can be, but it's important to be aware of the challenges that some beach runners experience before you get ready.

　　Running on the beach can be a good thing. It's certainly different from running on a track or a pavement. For starters, sand can be a challenge because it has an uneven (不平坦的) surface. As you push off, you're going to lose some of your push as the sand moves. So, you're not going to be able to push yourself forward as you would on a track or a pavement. But this unevenness has an upside: It gives your body an extra workout, forcing you to exercise muscles that don't get as much use during runs on firm surfaces. For example, your feet, ankles and lower back might feel sorer and more tired than usual after a beach run just because the surface is constantly moving and changing step to step.

　　You also might feel sore afterward because beaches tend to slope (倾斜) down to the water. If you're going for a long run on the beach, you might notice that one side of your body might feel sorer because you're putting more pressure on it due to the slope.

　　Some beach runners prefer to run barefoot - not wearing anything on feet. However, if you're not used to barefoot running, start slowly and don't run long distances at first. That's because running barefoot uses more different muscles than running with shoes does, and it's important to strengthen these muscles and adapt your feet. If you want to run barefoot and as long as you run carefully enough into it, go for it!

Running on the sand can be a smart choice for you, because running on softer ground surfaces can reduce muscle damage.