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题型:阅读选择 题类:模拟题 难易度:普通

    Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly.
    You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
    Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50cm from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
    When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect(反射) on the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands and wrists(手腕)
    Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these rules: ①Rest your wrists on something. ②Keep your elbows at the same height as the keyboard. ③Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
    Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all the parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.

(1)、A computer screen may injure your eyes if __________.

A、you sit 60cm away            B、your eyes are too close to it C、 the window is on your left or right
(2)、Hand and wrist injuries are caused when you __________.

A、move in the same way again and again B、rest your wrists on something C、keep your elbows as high as the keyboard
(3)、When using a computer, your eyes and hands will be safe if you __________.

A、work near a window     B、work for a long time     C、take rests at times
(4)、It is good for your back and neck if you sit __________.

A、for many hours      B、in the right way         C、with the screen below your eyes
(5)、What would be the best title for the text?

A、How to Use a Computer Safely     B、How to Keep your Hands and Wrists Safe C、How to Protect your Eyes and your Back
举一反三
阅读理解

    Give your dead batteries a new life. Recycle them!

    Batteries(电池) are used to power clocks, computers, tools and more. However,

Your batteries have some serious power when their lives are over.

WHY TO RECYCLE BATTERIES

    Remember, batteries are harmful waste. This mean you could properly throw away. You may not think one little battery can cause that much pollution. But don't think of it as just one battery—there can be millions. In Canada, each person uses about 20 single-use batteries every year. That's about 700 million batteries! If all these batteries end up in landfills(垃圾填埋场), the heavy metals inside them can get into the water, land and air. It can be harmful to humans and wildlife.

    By recycling single-use batteries instead of throwing them away, you can cut down pollution and also help save energy. All batteries are mainly made of plastic and valuable metals. Through recycling programs, dead batteries can be changed into something useful like steel products, or even new batteries!

    HOW TO RECYCLE BATTERIES:

    Make a difference by starting to collect batteries at your home or school today. You can prepare a box for battery collection and invite friends, family and classmates to bring in old batteries to be recycled.

    There are many safe ways to deal with your batteries. You can:

    Find a Call 2 Recycle public collection station near you.

    Ask the store where you bought the batteries if you can return them there.

    Communicate with your local city government to find out if there are special programs for recycling used batteries!

    For more information, visit https://ecokids.ca/batteries.

第一篇

Few families in the United States do not have either a radio or a television set. Both of them have become a necessary part of our daily lives, keeping us filled with the news of the day, teaching us in many fields of interest, and making us happy with songs, dances and other performances.

Marconi, the Italian inventor, gave us the radio. He probably didn't know how much his great invention would have done for the world in the years to come. Radio had perhaps done as much as any other communication tool. Things of the world can be reported to people everywhere a few seconds after they happened. Travellers in out-of-the-way places, ships at sea, even astronauts around the earth are able to keep in touch with each other by radio.

Television is another important invention. It lets us see as well as hear the actor. Since its

appearance, TV has done a great deal in the daily lives of people everywhere. Many programmes are now televised in colour.

Perhaps the most modern invention is the "Telstar", a"star"moving around the earth. It makes it possible for the people all over the world to be closer than ever before. Now a family in Chicago can watch a motor car race in Italy on TV, a table tennis competition in Beijing or a volleyball match in Japan as these events are actually happening!

 阅读下面短文,在空白处填入一个适当的单词或括号内单词的正确形式。

Du Fu (712-770) is a famous poet(诗人) in ancient China. He is {#blank#}1{#/blank#} (wide) known among us Chinese people. However, only a few know about him in the Western world. 

The BBC made a one-hour documentary (纪录片) called Du Fu: China's Greatest Poetin 2020. This English-language documentary gives {#blank#}2{#/blank#}excellent introduction of the great poet Du Fu. Nowadays, Du Fu {#blank#}3{#/blank#}(compare) to Dante(但丁) in Italy and Shakespeare in Britain. 

In the documentary, British historian Michael Wood travels around China to research Du's life. He visits a lot of places, such as Du Fu's birthplace and Du Fu Thatched Cottage(杜甫草堂) in Chengdu. Along the way, he interviews people, and they tell {#blank#}4{#/blank#} (fascinate) stories of Du Fu, who had a hard time in his late years{#blank#}5{#/blank#} never stopped writing or showing care and worries about{#blank#}6{#/blank#}(he) country and people. 

The documentary also explains {#blank#}7{#/blank#}Du's works have been popular for centuries. Because Chinese people pay much attention to{#blank#}8{#/blank#} (memorize) history. Du Fu, known{#blank#}9{#/blank#}China's "saint of poetry (诗圣)", had amazing {#blank#}10{#/blank#} (create) in writing poems. And today about 1, 500 of his works are still for us to enjoy. They also allow us to learn about many historical events. 

 请阅读短文,从每小题所给的四个选项中选出能回答所提问题或完成所给句子的最佳答案

 There are many deserts on the earth. And the following are some facts you may find interesting.

What are deserts like?

 Deserts can be hot and dry places. Rain may not fall there for months or years. Some deserts are sandy and stony. Deserts can also be very wind y places. The wind can change the shape of the deserts. It moves sand around from place to place.

 Temperatures in the desert can vary greatly. During the daytime, the temperature may reach 40℃ even in the shade. At night, deserts can become very cold. In winter, there may even be a frost early in the morning.

Living in the desert

 The camel is sometimes called" the ship of the desert". It stores food in its hump and can go for days without water. It has large feet which help it not to fall into the soft sand. Its long eyelashes keep out the sand during sandstorms.

 An oasis(绿洲) is an area of the desert where water may be found. People and animals visit an oasis for water and food. Plants grow at an oasis. Some farmers are able to grow crops here.

The Arabian Desert

 The Arabian Desert lies between the Red Sea and the Arabian Gulf. Oil under parts of the desert has made some countries in the area very rich. The government has spent money building fine cities with lovely parks and lakes, and people live a comfortable life there.

 阅读理解

The sky was pitch- black, the house was creaking (嘎吱作响), and I still had four hours until my parents got home. I locked myself in my parents' room and I turned up the TV so that I wouldn't hear the creaking house. 

Then the phone rang. I picked it up and said, "Hello… hello… ?" But there was no reply. I knew someone was on the other end. Finally, I hung up. A minute later, the phone rang again. Still no one said a word. I became more frightened (害怕的) as time passed. The phone rang again and again and again…

By the fifth time, I refused to pick up the phone, but the ringing continued. To get my mind off this strange caller, I called my friend. She told me not to worry and to turn the phone off. As we talked, I heard a car stopped in front of my house. When I looked out of the window, I saw an unfamiliar(不熟悉的) car. 

Thirty minutes passed and the car was still there. It drove up and down the driveway as if knowing I was watching.  ▲ , but I refused. 

Soon the phone calls started again. I heard noises in the background, but I couldn't tell what they were. I really didn't want that person to get out of the car and start towards the house. If he or she did, I didn't know what I should do. None of the doors to the house was locked, and I would have no way of protecting myself. The only thing I could do was to hide, which wasn't a very good plan. 

At this moment I was considering calling the policemen, but my friend offered to drive by. "Maybe if they see me come, they will leave, " she suggested. 

By the time she arrived, the car had left. The phone rang again and I picked up, thinking it might be my friend. Someone on the other end said, "Bye- bye. "

When I think back to that night, I am no longer frightened — just curious (好 奇 的 ). Who could it have been? Even so, since then I have not stayed at home alone and I probably never will again. 

 阅读下面短文, 从每题所给的四个选项A、B、C、D中, 选出最佳选项。

①Have you ever been to the Dead Sea, one of the most famous natural wonders in the world? Have you ever considered why it is called Dead Sea? Does it hold life? Can people swim there? With all these questions in your mind, let's know something about it!

②The Dead Sea is actually a lake in the Middle East. At four hundred meters below sea level, it's the lowest point on Earth. It lies between the borders of Jordan, Israel, and the West Bank. It's about 80 kilometers long, 11 kilometers wide at its widest point, and377 meters deep at its deepest. The lake is surrounded by hot, dry desert on all sides. 

③Since it's in a hot desert, water evaporates (蒸发) faster than the lake is refilled. And the area is lower than all the land around, the water can never flow back out, it can only evaporate. And that's what happens-water continually evaporates. In fact, so much water is evaporating from the Dead Sea, it often looks like there's a cloud of fog hanging over the lake. Anyway, as the water evaporates, it leaves behind the salt and minerals(矿物质). The water in the Dead Sea is almost six times saltier than ocean water!

④Because the Dead Sea is so salty, almost nothing can live there, except for bacteria and one type of algae. Any fish or freshwater animal that gets washed into the lake dies almost immediately. And the shores are covered in thick salt crystals(结晶), so animals can't even live near the lake either. That's why it's called Dead Sea. 

⑤Since it's so salty, why do people go there to cover themselves from head to toe with its mud? Actually, those minerals are supposed to be really good for your skin. No wonder lots of spas and health resorts have been built in the area. Though the water in the Dead Sea is so salty, it is totally safe for people. You can even go swimming there if you want, although it's pretty hard to swim because all that salt makes it much easier to float! It's really unbelievable. 

⑥Want to know more about it? Just explore it yourself!

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