—It's used for (cut) things.
—Of course. It ____________ interesting.
A: What beautiful pictures!
B: No, they're not pictures.
A: Stamps?
B: They are used for posting letters.
A:
B: They were invented by an Englishman named Rowland Hill.
A:
B: I've got more than 700 of them.
A: By the way, what are you going to be when you grow up?
B: I'm going to be a stamp designer.
A:
B: I'm going to study art really hard and go to an art college.
A: I hope your dream can come true.
B: Thank you.
What is it ?
Great changes have in Zhejiang in recent years.
The bicycle is one of the simplest and most useful inventions in the world. What is most surprising is that it was not (发明) earlier, although the great inventor Leonardo da Vinci had drawn pictures of bicycles and also of flying machines and some other things. Those things were not produced until long after he (死).
A person riding a bicycle uses a little energy to make the bicycle (移动), and there is no (污染) at all when you are riding. Even so, in (发达的) countries, most people don' t travel to work by bicycle. It is not because the bicycles are expensive or people feel (疲劳的) if they ride to work. It's because the number of cars on the roads becomes (更大的). It certainly becomes more (危险的) to ride a bicycle.
As a result, more people put their bikes away and go to work in their cars, and in this way, the situation is made more serious. Perhaps the best way to make riding safer and more popular is to (创造) paths only for bicycles, and to make it so difficult and expensive for (驾驶员) to take their cars into the city that they will go back to using their bicycles.
Every school day, we use schoolbags to carry all of our things to school. They are a big part of our lives. But have you ever thought about the history of the schoolbag?
In the Han Dynasty(汉朝) , students in old-style private schools used bamboo boxes to carry books to school. People consider the bamboo boxes to be the earliest schoolbags. There were usually two or three layers(层) in the box. Kids put different things like books, brushes, ink stones(砚) and paper in the boxes.
Hundreds of years later, people developed a new kind of schoolbag called the budai, or the "hip-pocket". The budai was lighter than the bamboo box. With the founding(成立) of the People's Republic of China, military rucksacks(军用帆布包) became popular. Many people carried them when they were in school. Ask your grandparents or parents about these bags. Maybe they can tell you about their experiences of carrying them when they were in school.
A new style of schoolbags has appeared in recent years. Many of them have colorful and fashionable designs(时尚的设计) on them, such as pictures of cartoons or pop stars. And they are more comfortable to use. Some students pull wheeled bags filled with heavy textbooks and others carry backpacks.
Schoolbags are still changing. Can you imagine what future schoolbags will be like?
