Every student in Australia must wear their school uniform when they are at school. There are many kinds of uniforms such as suits, dresses, shorts, skirts, T-shirts and so on. Class usually begins at 8.00 A. m. in most Australian schools, and sometimes it begins at 10.00A. m. You needn’t go to class with your schoolbag, you can put it in your own cabinet and only take a few books. There are many subjects, English, Maths, Biology, Geography, History, Physics, Chemical, Music, Computer, PE, Chinese, Drama）, and so on. In a computer class, each four students sit at a table and do their work. They are very quiet. The teacher goes around them to give directions to them. One class is about two hours. At noon all the students have lunch at school. Their lunch is all sandwiches and some fruit. In the afternoon there’s only one class. School is over at 3.30 p.m. Some students can swim or play ball games until 5.30 p.m. Then they must go home. They seldom do homework even the students in grade eleven. This is the school life of the students in Australia.

(   ) 46.Students in Australia should wear their school uniforms any time.

(   ) 47.Class begins at the same time every day.

(   ) 48. In a computer class, the students are very noisy.

(   ) 49.The students in Australia always have much homework.

(   ) 50.Australia school is different from Chinese school.

Look at your classmates around you. You all wear the same uniform and similar sneakers. Do you want to stand out among them? A fashionable and useful backpack can be a great idea!
Backpacks are lightweight and easy to carry.
They are great tools for students. They help you to stay organized. You can keep school things, books and personal items like cell phones and keys neatly (整洁地). With a unique backpack, you can also stand out among your classmates.
Tourists also love backpacks. With convenient backpacks, backpackers can move freely from one place to another. Meanwhile, they can also free their hands to do other things like taking photos.
But in the very beginning backpacks were not what we see today.
It is thought that US hiker Dick Kelty invented the first modern backpack in 1951. He used nylon (尼龙) and aluminum tubing (铝制管型材料) to make backpacks lightweight. Then he added shoulder straps (带子) and waist straps to transfer(转移) much of the weight to the hips (臀部).
Today, backpacks come in different styles.
Rolling (滚动的) backpacks have wheels on the bottom. Users can pull them along the ground if they are too heavy to carry on their shoulders.
And with more people bringing laptops to school and work, backpacks also offer space for lightweight electronics.
【小题1】 Backpacks are useful for tourists because_____.

A．they have wheels on the bottom

B．it frees tourists’ hands to do other things

C．tourists can feel fashionable

D．they make tourists feel special

【小题2】The underlined word “unique” in the passage probably means “       ”.

A．普通的	B．独特的
C．有用的	D．便利的

【小题3】 The first modern backpack was thought to be invented by _____.

A．a famous inventor	B．an Englishman
C．a hiker	D．a student

【小题4】 In order to make the backpack light, _____ is used.

A．cotton	B．nylon
C．cloth	D．paper

【小题5】 The passage mainly talks about _____.

A．a famous TV drama

B．different functions (功能) of backpacks

C．the history of backpacks

D．who wears backpacks