题目内容：

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. They 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?

1.Schoolbags in the Han Dynasty were made of _______.

A. cloth

B. paper

C. plastic

D. bamboo

2.Which is NOT true according to the passage?

A. Military rucksacks were popular in the 1950s.

B. The budai was heavier than the bamboo box.

C. There are some pictures on the new style of schoolbags.

D. Schoolbags have changed a lot.

3.To carry heavy textbooks, students would like to use _______.

A. wheeled bags

B. military rucksacks

C. bamboo boxes

D. the budai

4.We can usually read the article in ________.

A. a letter

B. a guidebook

C. a newspaper

D. a notice

5.The purpose of the article is ______.

A. to tell us how to use schoolbags

B. to explain why we use schoolbags

C. to introduce the importance of schoolbags

D. to introduce the development of schoolbags