Many companies use guards and expensive alarm systems to protect their property(财产). Soon a new kind of protection will be used—robots. Engineers have been working on the first mobile robots for businesses. The robots will guard factories, warehouses(仓库)and museums at night.
The mobile robots will move around slowly on wheels. They will be able to detect(察觉,发现) people through walls and pick up sounds, such as breaking glass. They can be fixed with loud sirens to frighten thieves, or radios to signal police or guards.
To protect a building, a robot will have to move around without knocking into the walls. Information about the building will have to be stored in the robot’s small, built-in computer. A floor map could be programmed into the computer’s memory, for example.
A mobile robot will not be able to do everything. Unlike human guards, it will not be able to climb stairs, open doors, or move along rough ground. It won’t be able to tell the difference between friends and enemies. Because of that, people will have to be prevented from entering the area it moves.
One kind of mobile robot will be able to “sense” whether a chair or a box has been moved and go around it. This robot will also judge size well enough so that it won’t send an alarm if a cat crosses the room. And if someone tries to steal this robot, it will sound a loud, painful siren. The three-foot-tall robot is hard to be stolen anyway. It weighs about 200 pounds.
U.S. companies pay almost $10 billion a year to protect their property with alarm systems and human guards. Mobile robots may be cheaper.Why is the new kind of robots called mobile robots? Because they can _______________.
A.guard factories, warehouses and museums |
B.send loud, painful sirens when it is stolen |
C.sense moving objects and signal police |
D.move around and do the programmed work |
How will a robot get directions for moving around a building?
A.From a human guard. | B.From a built-in computer. |
C.From another robot. | D.From radio signals. |
What can be the best title of this passage?
A.New Guards. | B.Science and Technology. |
C.Alarm Systems. | D.Engineers and Robots. |
Hello, I’m Jack. Please look at the picture of my classroom. On the front wall, there is a blackboard.It’s very big. In front of the blackboard, there is a yellow desk. It’s for our teachers. There is a computer on it. On the right wall there is a map of China. On the black ( 后面 ) wall of our classroom is a blackboard. We can write and draw on it. There are forty students in my class. Everyone has a desk and a chair.
In my classroom, my desk is next to Li Fang’s desk. She is on my left . And Tim is on my right. In front of me is John . Who is behind me ? It’s a girl, Amy. They are my good friends. This is a picture of Jack’s ______.
A.Family | B.classroom | C.friends | D.school |
How many blackboards are there in the classroom ?
A.One | B.Two | C.Three | D.Four |
What’s on the right wall?
A.A clock | B.A map of China |
C.A map of the world | D.A picture |
There are _____ desks in Jack’s classroom .
A. 20 | B.21 | C.40 | D.41 |
Where is Jack in the classroom?
A.He is on Li Fang’s left. |
B.He is in front of John. |
C.He is behind Amy. |
D.He is between Tim and Li Fang. |
Hello! My name is Bob Smith. I am an English boy.
Here are some school things(物品). This is my school ID card. Its number is 201289767. This yellow bag is mine. A yellow eraser, a purple pencil, a red pen and a book are in it. Oh, that dictionary is mine, too. Is the green pencil box mine, too? No, it isn't. It is my good friend Lin Hui’s. His school ID card number is 201287967. Green is his favorite(最喜欢的)color. He is in(穿着) a green jacket, and that green bag is his, too. What color is Bob’s bag?
A.Green. | B.Purple. | C.Red. | D.Yellow. |
Bob's school ID card number is .
A.201289767 | B.201287967 | C.200289767 | D.2012767967 |
There are things in Bob's schoolbag.
A.three | B.four | C.five | D.six |
Which is TRUE?(哪一个是对的)
A.Lin Hui is Bob's brother. |
B.Bob's pen is purple. |
C.That green bag is Lin Hui's. |
D.Red is his favorite color. |
Look at the girl. She is eleven. Her name is Wang Fang. I am eleven, too. My name is Kate. Wang Fang and I are good friends. She is in Class 1, Grade(年级) 7. She is Number 8 in Row(排)5. I am in Class 1, Grade 7, too. I am Number 9 in Row 6. We are at school today.How old is Wang Fang?
A.She is eleven. | B.She is twelve. |
C.She is ten. | D.She is nine. |
Wang Fang and Kate are .
A.teachers | B.boys |
C.friends | D.sisters |
Wang Fang is Kate's .
A.good teacher. | B.classmate(同班同学) |
C.brother | D.Sister |
Found: Watch Is this your watch? Call Cindy at 448-9012. |
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Lost: My yellow ring My name is Linda. Phone number :202-3506 |
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Found: Jacket Is this your jacket? It is a red jacket. Please call Mona. The telephone number is 678-9921. |
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Cindy finds a .
A.watch | B.ring | C.jacket | D.telephone |
Who lost a ring?
A.Cindy | B.Linda | C.Mona | D.Gina |
What color is the jacket?
A.White | B.Blue | C.Yellow | D.Red |
阅读下面短文,根据所读内容,在文章后1-10小题的空格里填入一个最恰当的单词。注意:每个空格只填1个单词。
Weekends are short. They are only two days out of a seven-day week. To make your weekends look longer, you need to plan it better. Here are some ideas.
★Get up at your usual time. The biggest mistake(错误) is to think that the weekend is a good chance(机会) for getting up late. So getting up early can make you feel the weekends are longer.
★Finish homework as quickly as possible. Nobody wants to do homework, but we have to do it. The earlier you do it at the weekend, the better you will feel. You can do homework from 7:00 a.m. to 9:00 a.m.on Saturday morning. After doing your homework, you can plan your weekends well.
★Go out to enjoy weekends. Weekends feel longer if you get out and enjoy them. Think about what you like to do. Plan a sports activity, for example, playing football in the park. You can also plan to go to a museum or a zoo.
How to spend your short |
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Some |
★ To make you feel weekends are |
★ The earlier you do it at the weekend, the better you will feel. So you should finish your homework as |
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★ |