Alice Lee is a high school student studying at a private school. She is doing some voluntary work at an after-school program to help students from poor families.

    On the first day of her work, she noticed that many kids were lining up for free sandwiches and fruits. She was surprised. One of the organizers explains that many of these students don't get enough to eat at home. So a school lunch or an after-meal might be the most food they would get all the day. She has also been told that some hungry kids can receive free lunches, but others are only allowed reduced-price meals, and those students' families have to pay for the part of their food.

    Lee was shocked, she decided to offer help to those who are suffering from hunger, "I want other kids to understand that if you see a problem, you don't have to wait to be an adult to fix it," says Lee. She and a group of friends are using their programme skill to create a new app called Food of Thought, which will allow parents, students, and even kind-hearted strangers to donate money to lunch accounts for students in a nearby school.

    Sam's dad told camping stories all through dinner. "Once I saw a snake outside my tent. Did I tell you about that?" Sam shook his head and tried not to look impatient. In fact, he really wanted to get out to the tent in the backyard (后院). His friend, Kent would go there.

    Finally, everyone finished dinner. Sam asked if he could go out. "I think you should help do the dishes first," said Mom. Sam washed all the dishes and helped clean the kitchen, and then he ran to the tent.

Kent was waiting for him. "Have you been waiting long?" asked Sam.

    "Not long,"said Kent. "Oh, well, we're here now. Let's get ready." "Ready for what?" asked Kent.

    "For anything that is going to happen," answered Sam. They played cards for some time in the tent. Then they read some books. After that, Sam told some of his dad's camping stories. When they got tired, they turned out the light ( 灯) and listened for noises in the dark. But they didn't hear any noises for a very long time ...

    Finally, Sam heard something at the tent flap ( 帐篷门帘). He felt very scared and kept his eyes closed.

    "Hey, get up, boys! Breakfast is ready." It was Sam's mom.

    Sam opened his eyes and looked at Kent. He was still sleeping. Sam sighed (叹息道), "We slept through the night, and nothing happened!"

    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.

    Have you ever thought about what our food will be in the future?

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    More land will be used for building new towns and houses for all the people. Then there will be less room for cows and sheep, so meat will be more expensive. {#blank#}2{#/blank#}Instead, people will eat more fruit and vegetables. In this way, people may be healthier.

    {#blank#}3{#/blank#}Only about 29%of the Earth's area is land and the rest is sea, so some think maybe we can get more food from the sea.

    Besides, though rice supports more than half the world's population, it needs a lot of water to grow. {#blank#}4{#/blank#}Therefore, it might be impossible to grow rice in the future. Some farmers are experimenting with new crops. {#blank#}5{#/blank#}The soybean (黄豆) makes a good substitute (替代品) for rice and meat.

There are many interesting stories between Father and Son.

One day, Father and Son were walking slowly 1 a river, suddenly Son cried, "Daddy, look, there is a woman falling into the river!"Without thinking too much, Father jumped into the water and 2to the woman, "Don't worry, lady. I'm a good swimmer and I will try my best to save you." Father pulled the woman on to the bank (岸边). He was 3but happy. But the lady was not thankful to Father at all; instead, she slapped Father heavily. She jumped into water again. Oops! This was a 4competition !

It was snowing 5, but Son was very happy. He spent a lot of time making a snowman with Father. It was tall and big. Son liked it very much. But at night, someone 6the snowman down. When Son saw this the next morning, he cried sadly. Father was angry and decided to find out who did this. He was dressed as a snowman and stood by the road. One man came here and wanted to push the snowman again. Bang! The snowman kicked his ass. "Oh, my god! I met a ghost! "The man ran away quickly.

One morning, Son told Father he didn't 7well. Father brought some warm water to Son and asked him to have a good rest, and then Father hurried out to 8some medicine; but on his way to the medicine shop,he found that he 9his money at home. When he opened the door, he found Son 10the cat happily .Father was so angry that he told Son to go to school at once.

Your mother is the most important person in your life. She helps you with your homework. If you get ill, she stays with you the w{#blank#}1{#/blank#} night. She makes your m{#blank#}2{#/blank#} every day. Your mother is a{#blank#}3{#/blank#} there for you. That's why there is a s{#blank#}4{#/blank#} day for mothers a{#blank#}5{#/blank#} the world.

Mother's Day becomes a modern holiday in the US. A woman called Anna Jarvis and her mother, Anna Reese Jarvis, live in a poor town. They work hard to m{#blank#}6{#/blank#} the town better. Jarvis' mother died(去世) on Sunday, May 14. 1905. Their church holds a Mother's Day to thank her f{#blank#}7{#/blank#} the help.

Today, people in m{#blank#}8{#/blank#} than 40 countries celebrate the day. They give their mothers carnations (康乃馨)and o{#blank#}9{#/blank#} presents. In the language of flowers, carnations stand for happiness, sweetness and l{#blank#}10{#/blank#} .