Each one of us shares this planet with over seven billion others. And we all need1. People and products need to move from city to city and country to country. However, we all know2most cars, motorcycles, boats and planes cause air pollution. They are also3. This is a serious problem in many cities.4inventors are coming up with creative ideas to try to reduce the pollution and noise.

    In many cities around the world, motorcycles are very5. Now Vietnam has around 33 million motorcycles and China has almost 120 million. Motorcycles are a faster and cheaper way to get around a city than6. Yet air pollution is a growing problem. In large cities, people7it is difficult to breathe. To solve these problems, an American company designed an environmentally friendly motorcycle. It uses electricity as fuel (燃料). As a result, there is8pollution. It's also quiet and fast. This makes9a good choice for getting around a city.

    The Italian city of Venice is a city with only a few10. There are no cars in the city centre.11cars, water taxis and buses carry people along the city's canals (运河). However, they cause pollution,12to the water. English engineers Dick and Jem designed a solar-powered (太阳能的) water taxi. The water taxi13run for a day after being charged (充电).

    Planes also cause air and noise pollution. Designing an environmentally friendly airplane is a real14. Some airplane companies have15to solve the problems. Swiss engineers have gone one step further. They developed a solar airplane. This airplane even tries to travel around the world.

Many kids are always taken care of everywhere like "little princes and princesses"However, it's bad for them. They are supposed to learn some basic living skills, like cooking. Can you make scrambled eggs (炒蛋) ? Let's look at the following steps: 

Step1: Break two eggs into a bowl 

Step2: Add a little milk and mix everything. 

Step3:Heat (加热)a little oil in a pan (平底锅) on the stove. 

Step4: Pour the egg mixture into the hot pan. 

Step5: Mix the eggs and cook them about two minutes 

Step6: Add some salt and pepper. 

Step7: Turn off the stove and put the scrambled eggs on a plate 

Now enjoy the scrambled eggs! Please eat them up! 

Kuang Heng was born in a poor family. He liked reading books very much. He needed to work at daytime, so he had to read books during night. But he was too poor to buy candles. 

One day, he found his neighbor had candles, but the light couldn't go through his room. So he dug a small hole on the wall so that he could use the light to read books. From that day, he read books every night until the light went out. 

However, he finished reading all his books and there were no books for him to read. Then he went to a rich man's house and worked for him without payment. The rich man asked: "Why don't you want the money?"

Kuang Heng said: "Because I only want to borrow your books." The rich man agreed. Kuang Heng read the books one by one. 

Because he tried to get over difficulties and worked hard, he became a great scholar（学者）at last.

A teacher taught her students to play a game. The teacher told each child to bring a 1 with a few potatoes. Each potato was given a name of a person that the child hated, so the number of potatoes that a child would put into the bag would 2 the number of people the child hated. 

Some children had two potatoes. Some had three and others even had five potatoes. The teacher then told them to 3 the bag wherever they went for a week. 

As the days went by, the children started to complain（抱怨）about the unpleasant 4 coming from the rotten（腐烂的）potatoes. And the students with five potatoes also had to carry 5 bags. 

After a week, the teacher asked, "How did you 6 ?" The children started complaining about the 7 they had to go through. For example, when they carried the heavy and smelly potatoes everywhere they went, people always covered their noses and moved away from them 8 . 

Then the teacher said. "This is the 9 situation when you carry your hate for somebody inside your heart. The smell of hate will 10 your heart and you will carry it with you wherever you go."

"If you can not stand the smell of rotten potatoes for just one week, can you imagine what it is like to have the smell of hate in your heart for your lifetime?"

Marcos was a hard- working farmer. Every day he asked his only son to 1 him on the farm, but Paolo seldom got out of bed before noon. Marcos was very 2 about his only son.

One evening Marcos's old friend Luigi 3 ." Marcos, why aren't your fields ready for planting?" Marcos answered that he was old and his back hurt. He said that Paolo was 4 and did not help him with the farming." Marcos, you need to use your mind as much as your back. I have an idea 5 you," Luigi said.

Early the next morning Marcos rushed into Paolo's room." I found your grandfather's treasure map(藏宝图)!" he cried." We may find 6 he buried(埋) his gold coins!" Paolo jumped out of bed." T'll start over here," Paolo told his father. Paolo dug on the farm all day. While Paolo dug, his father 7 along, dropping something from his bag into the holes(洞). When they went in for dinner that night, a very tired Paolo said," I think Grandfather was old when he made his map. I don't think I'll dig tomorrow."

Paolo 8 back to his lazy way and slept all morning. One day Marcos ran into Paolo's room and cried," Paolo! I found the treasure(财富) on the farm!" Paolo 9 went out to look. He said," There is10 here but lines and lines of vegetables."

Marcos smiled." Paolo, it is all around you. You have enough food to 11 through the winter, with a lot more to sell!" Paolo was embarrassed(尴尬的) to see that his father was 12 . His one day of hard work13 real treasure to him. He learned an important14 . He could make a good living with a little hard work. He became a good15 and made his father happy.