In most parts of the world, many students help their school make less _______. They join “Earth Club”.

In this club, people work together to make our Earth clean. They take part _______ many activities. Here are some of them.

_______ rubbish do you throw away _______ lunch? Earth Club asks students _______ their lunches in _______ same bag every day. If the class makes the least rubbish during a week, the club will report _______ to the school.

On a no-car day, _______ comes to school in a car. Cars burn things to make energy. This pollutes the air. _______ walk, run or ride bikes to school, _______ your legs! It’s lots of fun.

Some toilets waste (浪费) water. In Earth Club, students repair (修理) those broken toilets.

When you go for a run outside, chances are that you’ll find litter all around you. Do you just go past it, or do you _______ and pick it up? If you choose the second, you’re doing the latest popular _______ in the West: plogging.

The word “plogging” combines (结合) the Swedish phrase “plockaupp” (pick up) and the English word “Jogging”(running slowly).

What a plogger _______ is a rubbish bag and a pair of gloves to protect your hands. While _______ rubbish, loggers learn to classify (分类) and deal with it _______, too.

Plogging seems _______ but it does a lot of good to both the environment and your _______. It can not only make the world _______, but also get your full body exercise. For example, a 30-minute plogging burns around 288 calories (卡路里), compared to 235 calories burned from just _______.

So next time you go out jogging, why not carry a rubbish bag and collect some litter along the way? Your body and the environment will ________ you.

One day, David and his friends talked about who their closest friends were. When it was his turn, he said, "My best friend is Amy, an 81-year-old woman living in Florida."

Their friendship came from a game. In the game, David and Amy were on the same team. After this game, they became good friends. David even told her about his dream of music.

However, life was hard for David at that time. He hardly had time or money to play music. Most of the time, he had to work in a restaurant. When he almost lost heart, Amy gave him lots of help and supported his dream. Two years later, he decided to go to New York for his dream. There he held his first concert successfully.

After the concert, a famous reporter in New York heard of their story. He wanted to know what Amy was like, so he flew to Florida to interview her. To his surprise, their friendship was more beautiful than he could imagine.

Later, many people were moved by this story. But Amy thought it was nothing. She said, "As friends, we should give a hand when they need."

There are many stories and poems about the Moon in Chinese history. And nowadays scientists send spaceships to the Moon. Why? Because people are always interested in the Moon and want to know more about it. Here is some information (信息) about it. Let’s see it together.

The Moon looks beautiful and bright at night. It is far away from the Earth and if you want to get to the Moon, it will take you about 6 months to get there by car at 95km per hour.

There is no gravity on the Moon, so people can enjoy floating there. If you weigh (有……重) 68kg on Earth, you will weigh only 11kg on the Moon.

There are many interesting places such as craters (陨石坑), mountains, and lava plains (熔岩平原) on the Moon. There is no air on the Moon, so people can’t breathe on it.

On Earth, the day is usually warm and the night is cool. And there are four different seasons in a year. But on the Moon, the temperature is very high during the day and very low at night. And a foil day on the Moon, from the sunrise to the next, lasts about 29.5 Earth days on average (平均).

The Moon doesn’t have its own light. It looks bright because it can reflect (反射) light from the Sun. When the Moon moves around the Earth, it gets different light from the Sun. So we find its size often changes.

"I sometimes get up at three or four in the morning and I surf the net."

"I often check my e-mail forty times a day."

"I spend more than ten hours on the net every day."

"I spend more time in chat rooms than with my 'real-life' friends."

Do you know any people like these? They are part of a new addiction（上瘾）called Internet addiction. Internet addicts spend at least thirty to forty hours online every week. The use of the Internet can be an addiction like drug use. The people lose control of the time they spend on the Internet.

For example. One college student was missing for several days. His friends were worried, and they called the police. The police found the student in the computer lab: he was surfing the net for several days.

Studies show that about 6%-10% of the Internet users become addicted. And people worry about the teenagers because the Internet is changing the playing field for some of them. They spend more time in front of the computers than in the real world of friends and family.

Is "surfing the net" a hobby or an addiction for you? You may have a problem if you have these symptoms（症状）:

You do not go to important family activities or you do not do school work because you like to spend hours on the Internet.

You can't wait for your next online time.

You plan to spend a short time online, but then you spend several hours.

You go out with your friends less and less.

Lanterns have been part of Chinese culture for centuries and play an important part in many celebrations. In ancient times, there were mainly three kinds of lanterns.

Palace lantern

    56     When making palace lanterns, fine wood was used. The palace lanterns were covered with silk or glass. Different kinds of pictures were drawn on the covers. These lanterns were not only used as lights but also as decorations in palaces.

Gauze lantern

Less expensive bamboo and gauze(薄纱) were used to cover the lantern. Red gauze was used when making them.     57     So red lanterns are always hung on important festivals such as Lantern Festival, Spring Festival and National Day in parks or along main streets. In some famous China-towns abroad, you can see red lanterns all the year round.     58    

Shadow picture lantern

It was usually used for amusement.     59     There were two layers（层）of covers and pictures were drawn on the inside layer. When lit, the heat caused a paper wheel inside the lantern to turn around, so that moving pictures appeared on the outside cover.

Now more kinds of lanterns appear in festivals besides the traditional ones. More modern technology is used on making lanterns.     60