题目内容
Computers can injure （伤害）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 50 centimeters（厘米）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 on（反射）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
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 three rules: 1）Rest your wrists on something. 2）Keep your elbows（肘）at the same height as the keyboard. 3）Stop 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 be 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.
Enjoy your computer, but use it safely.
1.A computer screen may injure your eyes if .
A. you sit 60 centimeters away B. you remember to look away
C. your eyes are too close to it D. the window is on your left or right
2.Hand and wrist injuries are caused when you .
A. get plenty of exercise B. move in the same way again and again
C. rest your wrists on something D. keep your elbows as high as the keyboard
3.Your eyes and hands will be safe if .
A. you work near a window B. you often take rests from working
C. you use a keyboard for a long time D. the window is behind you
1.C 2.B 3.B 【解析】本文主要介绍了如何安全地使用电脑。 1.细节理解题。根据第二段第一句和第二句Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters（厘米）from ...
B. 
C. 
Living places The home of the elephant is in the deep forest. It is the largest of all land animals, and is found both in Asia and Africa. One of the main places in Asia where the elephant lives is the island of Ceylon. The huge forests on the island become the home of thousands of elephants. The trees grow thick and tall. They make many parts almost dark, while bright sunlight is above and around them. |
Living habits The elephant likes the deep part and the coolest places of the forest. There he will stand swinging his ears, to drive away the flies; or he will pull down a branch (树枝) from a tree to fan himself. He likes bathing, and to be near a lake or running water. There he takes in the water with his trunk, and spreads it all over his body. |
Food The elephant enjoys the fruits in the forest, and also the leaves of the trees. There is plenty of food for him in the forests, though he is not always happy with what he finds there. |
Way of movement When a group of elephants moves about in the forest, the oldest goes first. The young elephants and their mothers are in the middle, where they are safest. Then all move along with a great noise, the branches of the trees bending and breaking before them. Though the elephant is usually harmless, no one dares to attack (袭击) a group of them moving through the forest. |
How people treat them In Asia the elephant is trained to work. At one time the African elephant also was trained. Soldiers in ancient times often went to fight on the backs of African elephants. But now the elephant that lives in Africa is illegally (非法地) hunted mainly for its valuable ivory. In order to protect them, governments around the world have developed laws to stop this. |
1.The elephant likes the part of the forest.
A. bright and sunny B. deep and cool C. dry and deep D. wet and sunny
2.Elephants like to do the following things except .
A. bathing B. having fruits C. eating leaves D. harming people
3.Why are young elephants and their mothers in the middle while moving?
A. To keep safe. B. To avoid making noises.
C. To break the trees. D. To walk faster.
4.What is the African elephant now mainly hunted for?
A. Working for people. B. Fighting in the army.
C. Performing for people. D. Selling for money.
5.Which of the following sentences is NOT true according to the passage?
A. Many Asian elephants live on the island of Ceylon.
B. Elephants drive away the flies by using their ears.
C. Elephants are always happy with the food they find in the forest.
D. A group of moving elephants make people scared, although they are harmless.
1.B 2.D 3.A 4.D 5.C 【解析】文章讲述了大象的居住地，生活习惯，食物，迁徙方式，人们怎么对待他们。 1.根据The elephant likes the deep part and the coolest places of the forest.故选B 2.根据He likes bathing, The elephant enjoys ...Dear Parents,
Young People’s Day Camp (YPDC) has been providing wonderful summers for the children of Central New Jersey since 1972. Now we are preparing for a new summer and it will be our most exciting summer ever.
Our camp is in beautiful Roosevelt Park with a library and a museum. As a former (昔日的) baseball player, I feel the need to keep teenagers healthy. So we will offer a special training program. This program will cover different sports for each child through the summer camp.
Transportation (交通车辆)
We use 20-passenger buses. We will pick up (接) each child between 7:30 a.m. and 8:15 a.m. with door to door transportation. Children will be home between 3:45 p.m. and 4:30 p.m.
Rates (费用)
No. | Weeks | Rates |
1 | 2 | $ 925 |
2 | 4 | $ 1,700 |
3 | 6 | $ 2,280 |
4 | 8 | $ 2,950 |
Every day my son came home happily. He talked about how much fun he had and what he did. Before the summer was even over, he said, “Mom, I want to go back next year. I would like to say thank you and I will see you all next summer.”
— Christina
Please feel free to call us with any questions. I will always make myself available for both you and your children throughout the year. Phone: 732-768-2279.
根据材料内容选择最佳答案。
1.What can we know about YPDC?
A. Its owner was once a basketball player.
B. It is for middle school children only.
C. It has a history of over 40 years.
D. It is near Roosevelt Park.
2.A child can catch the YPDC bus at _______.
A. 9:00 a.m.
B. 8:00 a.m.
C. 7:00 a.m.
D. 6:00 a.m.
3.If Peter’s mom chooses No. 2 for him and No. 3 for his brother, how much should she pay?
A. $4,560.
B. $3,980.
C. $3,400.
D. $3,205.
4.According to Christina, YPDC is _______.
A. dangerous
B. expensive
C. traditional
D. interesting
5.What’s the writer’s purpose of writing this material?
A. To tell people the development of YPDC.
B. To find drivers for YPDC buses.
C. To ask people to join YPDC.
D. To raise money for YPDC.
1.C 2.B 3.B 4.D 5.C 【解析】这是一则广告，主要介绍了青年人日营（YPDC）的相关情况。 1.句意：我们对YPDC有什么了解？A.它的主人曾经是一名篮球运动员。B.它仅适用于中学生。C.它有超过40年的历史。D.它靠近罗斯福公园。根据原文“Young People’s Day Camp (YPDC) has been providing won...