The School Crossing Patrol （巡逻） Service started in the UK in 1950 to allow children to cross Britain’s roads in a safe way. People who did this were called a lollipop（棒棒糖）lady or man because their sign（标志）to stop the traffic was in the shape of a lollipop.

The job of a School Crossing Patroller is to allow children to cross the roads in a safe way when they are making their way to and from school. When in a car and you are approaching a school crossing patrol, you should slow down. This is especially important during rush hours for schools.

“Most of the School Crossing Patrollers are old people,” says Richard Hall. “The pay is around £8.5—£10 per hour so it’s not the kind of job that will make anyone rich, but many school crossing patrols speak very warmly about their work, knowing they are playing an important part in the community.”

However, this job has become a dangerous one in recent times and some local governments have put cameras on the lollipops to catch drivers that put the school crossing patrols in danger. The patrols also wear bright-colored clothing so that there can be no excuses for drivers saying that they cannot see them. Don’t be one of the growing number of people that fail to stop when a lollipop man or woman shows their stop sign in the middle of the road. If you do, you could get a big fine from the government.

Remember, by not stopping you are putting the lives of the lollipop lady or man in danger. A few minutes waiting is much safer than trying to get past when the patrol has started to stop the traffic.

Is there the best time to sleep? Did you realize you felt very tired the next day no matter how much you slept? Actually, you have a great biological clock（生物钟） inside your body which can tell you some true facts.

From 11 p.m. to 3 a.m., your liver（肝脏）gets larger when filled with more blood and it lets much litter   in your body out. If you go to sleep at eleven in the evening, you have 4 hours to clean up the litter. And if you sleep at 2 o’clock in the morning, there is only an hour to go. What about sleeping after 3 a.m.? △____ That’s very bad for your health. If you continue with this bad habit, there will be more toxins（毒素）in your body.

What about going to bed late and wake up late? There won’t be enough time to clean your body, and you will miss other important body functions（功能）, too.

From 3 a.m. to 5 a.m., you should exercise and breathe in fresh air to take in good energy into your body. From 5 a.m.to 7 a.m., go to the toilet. And from 7 a.m. to 9 a.m., it’s the best time to have breakfast. This is your most important meal in a day. Not having breakfast makes lots of healthy problems for you in the future.

Once you know the importance of your biological clock, try your best to follow it. If you have much work to do for the company at night, why not go to bed early and wake up early to do it? You’ll spend the same time, but your body will get fit.

You may have heard of the popular saying, “Practice makes perfect.” But have you ever wondered whether it’s really true? Does practice always make perfect?

Sometimes practice does make perfect. Take a math test for example. If you know you’re going to have math test in a week, you can keep doing math exercises before the test. If you get a full mark on your test, that’s perfect and you can say the practice helped get you there.

However, in some other fields of life, practice doesn’t always make perfect. It doesn’t mean that practice is useless. Sometimes it just means that there’s no such thing as perfect in a certain field. For example, there are no perfect games or perfect shows. It all depends on what you consider to be perfect.

Even if practice doesn’t always make perfect, it almost always makes you better than you were before practicing. The more you practice something, the better you are at it.