Many people know that rubbish is a big problem on planet Earth. What many people don't know is that junk (垃圾) has become a problem in outer space too.

    According to BBC News, there are more than 22, 000 pieces of space junk floating around the earth. Andtheseare just the things that we can see from the surface of the earth by telescopes (望远镜). There are also millions of smaller pieces of junk that we can't see.

    Objects, like bits of old space rockets or satellites, move around the planet at very high speeds, so fast that even a very small piece can break important satellites or become dangerous to astronauts. If the tiniest piece of junk crashed into a spaceship, it could damage the vehicle.

    To make things worse, when two objects in space crash, they break into many smaller pieces. For example, when a U. S. satellite hit an old Russian rocket in 2009, it broke into more than 2,000 pieces, increasing the amount of space junk.

    To reduce additional space junk, countries have agreed that all new space tools can only stay in space for 25 years at most. Each tool must be built to fall safely into the earth's atmosphere after that time. In the upper parts of the atmosphere, it will burn up.

    Many scientists are also suggesting different ways to clean up space junk. In England scientists are testing a metal net that can be fired into space junk. The net catches the junk and then pulls it into the earth's atmosphere to burn up. The Germans are building robots that can collect pieces of space junk and bring them back to Earth to be safely destroyed.

    "The problem is becoming more challenging because we're sending more objects into space to help people use their mobile phones and computers," says Marco Castronuovo, an Italian space researcher.

    "The time to act is now. The longer we leave the problem, the bigger it will become," he says.

    Maybe a lot of thin people will be worried about their health if the inside fat matters.

    Some doctors now think that the inside fat around important organs like the heart or liver could be as dangerous as the outside fat which can be noticed more easily.

    "Being thin doesn't surely mean you are not fat," said Dr Jimmy Bell at Imperial College. Since 1994, Bell and his team have tested nearly 800 people with MRI to create "fat maps" showing where people store fat.

    According to the result, people who keep their weight through the food they usually eat rather than exercise are likely to have major deposits (堆积物) of inside fat, even if they are thin.

   Even people with normal Body Mass Index (体重指数) scores can have surprising levels of fat deposits inside. Of the women, as many as 45 per cent of those with normal BMI scores (20 to 25) actually had too high levels of inside fat. Men were nearly 60 per cent.

    According to Bell, people who are fat on the inside are actually on the edge of being fat. They eat too many fatty and sugary foods, but they are not eating enough to be fat. Scientists believe we naturally store fat around the stomach first, but at some point, the body may start storing it elsewhere.

    Doctors are unsure about the exact dangers of inside fat, but some think it has something to do with heart disease and diabetes (糖尿病). They want to prove that inside fat does harm to the body's communication systems.

    The good news is that inside fat can be easily burned off through exercise or even by improving your eating habits. "If you want to be healthy, there is no other way. Exercise has to be an important part of your lifestyle," Bell said.

In fact happiness is always around you if you put your heart into it. {#blank#}2{#/blank#}When you study hard at your lessons, your parents are always taking good care of your life and your health. When you do something wrong, people around you will help you to correct it. When you help others, you will have a strong feeling of satisfaction and happiness, too.{#blank#}3{#/blank#} If you notice a bit of them, you can see that happiness is always around you.

{#blank#}4{#/blank#} It is a feeling of your heart. When you are poor, you can also say you are happy, because you have something else that can't be bought with money. As the saying goes, "Life is like a revolving（旋转）door. {#blank#}5{#/blank#}"

If you take every chance you get, you will be a happy and lucky person.

A. Happiness is not the same as money.

B. When it closes, it also opens.

C. All of these are your happiness.

D. Because those rich people can also feel lonely and nervous.

E. When you are in trouble at school, your friends will help you.

F. If you have enough money, you will be happy.

Paul Roberts, a 15-year-old boy, lives in New York. Like thousands of other American students, he usually goes away to a summer camp during the school holidays.

These camps are just for teenagers, without their parents, and Paul always has a great time. But this summer he's doing something different-he's going on an adventure* holiday in Hawaii.

It's a camping holiday for three weeks in Hawaii, for kids from 14 to 

18. He's leaving on July 23^rd and coming back on August 12^th.

First, they're putting on backpacks and hiking through the forest in Hawaii. The place is very beautiful, with huge waterfalls and fascinating beaches. After this five-day walk, they're staying for two days in a valley*. The main activity here will be surfing. Paul doesn't know how to surf, but instructors will teach him how to do it, and he's really looking forward to this.

Then the organizers are providing mountain bikes and they're going for long rides-about 30 miles a day, around one of Hawaii's mountains. And on one day they're meeting a local Hawaiian family and helping them to plant fruit trees on their farm. After that, they're sailing for three days by the coast, and they'll have a chance to swim with dolphins and sea turtles!

This sounds amazing. Finally, they're going out for three days in sea kayaks*-they're visiting sea caves and swimming too.

Every night for the three weeks, they're camping in tents*, usually on the beach. This isn't a holiday for couch potatoes! They say the kids have to be fit, and of course they have to know how to swim and ride a bike. The kids can't use the computer or pad during the three weeks, but it's going to be a really special experience.

 Pandas are in danger. There are only about1, 600 pandas in the wild today. Zoos and research centers are looking after about 340 pandas. Pandas do not have many babies, and baby pandas often die. The situation is getting very difficult. Scientists are doing a lot of research to help pandas produce more babies and help baby pandas live. 

 Pandas live in the forests and mountains of Southwest China. Each panda needs to eat a lot of bamboo every day. The bamboo forests are getting smaller, so pandas are losing their home. 

 In order to protect pandas in the wild, the government is setting up nature parks and developing other plans. The nature parks will be big and there will be more bamboo to feed the pandas. Pandas born in zoos may go back to live in the nature parks. 

 The World Wide Fund for Nature(WWF) wants to protect all animals. And it chose the panda to be its symbol. We do not want to lose tigers, elephants or any other animals, so the WWF is working hard to save them all. 

 The Oscars award ceremony(奥斯卡颁奖典礼) is one of the most famous ceremonies in the world. It {#blank#}1{#/blank#}(watch) live on TV around the world every year. The first ceremony{#blank#}2{#/blank#}(happen) in Hollywood in 1929, and all of the {#blank#}3{#/blank#}(prize) were for silent films. For the first ten years, the results were given to the newspapers before the ceremony. However, since 1941, the names of the winners have been {#blank#}4{#/blank#} secret until the last moment.

 No one is {#blank#}5{#/blank#}(exact) sure where the name"Oscars" came from. One story is that in 1931, the director of the Academy thought that the golden award looked {#blank#}6{#/blank#} her uncle Oscar, so the name stayed.

 No one is very interested in {#blank#}7{#/blank#} the men wear, but the biggest fashion houses, like Chanel and Dior, try to invite {#blank#}8{#/blank#}(popular) women stars in the world to wear their dresses. The stars usually get the dresses for free, and they usually look great.

 The speeches that the winners make are often rather boring, as they' re usually just a list of people they want {#blank#}9{#/blank#}(thank). The winners often get very excited— sometimes {#blank#}10{#/blank#} can be almost impossible to understand what they are saying!