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. |
A good breakfast is important. You can easily understand it. By breakfast time you have not eaten anything about twelve hours. Your body needs food for morning activities(活动). One good breakfast should be rice or bread, an egg , milk and fruit. On a cold morning a cup of hot drinks is necessary(必需的). A good breakfast helps you to smile more easily. It helps you to be more friendly and also to work better and play more happily. Your whole day will be more fun after you have enjoyed a good breakfast.
判断正误，正确的写“T”，错误的写“F”It's not very important to have a good breakfast.
Food is needed in the morning because you have had nothing to eat for the whole night.
Only rice or bread will be a good breakfast.
If you get up late, your body doesn’t need food for morning activities
A good breakfast is helpful to you.
请认真阅读下面短文，并根据短文内容回答问题。
Black Friday
Thanksgiving is always on a Thursday. The day after it has been known as Black Friday. It is the start of the holiday shopping season, and it has been the busiest shopping day of the year in the US since 2005.
Most stores offer big sales on Black Friday. They open their doors quite early in the morning. They try to attract shoppers with big discounts (打折). Some items (商品)like TVs and cloths are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.
Black Friday is a great time to go shopping. However, there are problem. The biggest one is that there are not enough low-priced items. Each store may only have a few. These items are in great need, so people stand in long lines to get them. They may wait three to four hours before a store opens. They may be hoping to get a low price on a TV or computer, but not everybody can get one. Some people leave, disappointed.
The situation makes people worried. Some Black Friday events have been crazy. There have been fights over toys among shoppers. Some workers have even been hurt by large crowds. But most Black Friday events are safe and fun. Still, if you plan to go, you will expect large crowds and a bit of pushing.
So where does the name “Black Friday” come from? It was first used in Philadelphia in the 1950s. The police called this day Black Friday because of the heavy traffic it caused. In the 1960s, stores tried to rename the day “Big Friday”. It did not stick. The name “Black Friday” continued to spread across the country. It seems that it is here to stay.
Now people all over the country take part in Black Friday events. It is even spreading to other parts of the world. Stores have held Black Friday events in the UK, Australia, and Brazil since 2012. In Mexico, stores offer a weekend of discounts every year. They call it “El Buen Fin”, which means “the good weekend” in Spanish. I guess people everywhere like to buy things on sale.
Is Black Friday the start of the holiday shopping season?
_________________________________________________________________________What is the biggest problem with Black Friday?
_________________________________________________________________________How long may people have to wait before a store opens?
_________________________________________________________________________Where was the name “Black Friday” first used in the 1950s?
_________________________________________________________________________Why do people like going shopping on Black Friday? __________________________________________________________________________
“ Listen carefully to what I say.” the time traveler said. “I shall tell you something that you will not agree.”
“Why will we not agree?” I asked.
“Because the science and mathematics you know are not correct,” he said, “You believe there are only three dimensions(三维空间）---length, breadth(宽）and thickness.”
“There is nothing to agree with that,” the youngest member of our little group said.
“Exactly!” the time traveler answered. “But there is also a fourth dimension---time.”
“We all know about time,” another member of the group said,” Time passes.”
“I do not agree,” the time traveler said. “Length, breadth and thickness do not pass. They stay in the same place in space. We move about them. I can prove that time is the same. It does not pass. We move in time the same way that we move in length, breadth and thickness.”
None of us believed the time traveler, and we argued with him for many hours.
“If we could travel back in time,” the scientist said, “we could do things to change the future.”
“If we could travel forward in time,”the doctor(博士）said,“We could do things that change our present.”
The time traveler smiled. “It is clear,” he said, “that there is only one way I can show you that I am right. We must do an experiment. Please wait here.”
He left the room and soon returned, carrying what looked like a clock.
“This is a model of a time machine. It took me two years to make it.” the time traveler said, “I want all of you to understand that when I start the machine, it will immediately travel in time and disappear from present.”
He turned to the youngest of us. “Give me your hand.” he said.
The young man put out his hand. The time traveler took it and placed it on the machine. Immediately, there was a sudden wind, and the little machine disappeared.
I was certain this was not a trick, but the doctor was not so sure.
“Are you asking us to believe,” he said, “that the machine is now in the different time?”
“Certainly! In my laboratory, a full-size machine is almost complete. As soon as it is complete, I shall send myself on a journey through time. Would you like to see my machine?”
“Are you serious about this?” the doctor asked.
“I have never been more serious about anything,” the time traveler said, “Come.”
We followed him to his laboratory. There, we saw the actual machine, not quite complete, but large enough for a man to sit in. How many dimensions did the time traveler say there are?
| A．Two. | B．Three. | C．Four. | D．Five. |
How long did it take the time traveler to make his model time machine?
| A．Two years. | B．Two months. |
| C．Twenty years. | D．All his life. |
Which is the right order of what happened in the story?
a. The model time machine disappeared with a wind.
b. The time traveler came back to the room with a model time machine.
c. The members of the group argued with the time traveler for many hours.
d. The time traveler showed them a full-size time machine which was not quite complete.
e. The youngest man’s hand was placed on the model time machine.
| A．e c a d b | B．b c e a d | C．c e b a d | D．c b e a d |
What can we infer(推断）from the passage about the time traveler?
| A．He believed that they could move in time. |
| B．He was playing a trick on a group of people. |
| C．He sent the young man to the future in the model time machine. |
| D．He would possibly send himself on a journey through time. |
What kind of story do you think the passage is?
| A．A detective story. | B．A science fiction. |
| C．A romantic fiction. | D．A horror story. |
One summer my friend and I decided to go to Italy for a holiday and we decided to travel there without going through a travel agency．You know，you would be submerged(淹没) in crowds of tourists and lose lots of opportunities to get familiar with the country more closely．We started to think over our trip and managed to come up with a free tour of Italy．
The trip was not very long but it was still very pleasant．We look forward to going there again! Of course，we spent lots of time arranging the trip，but it was well worth it! Of course I was afraid that something would go wrong and I was especially anxious about my visa，but everything went quite smoothly in the end．
The most difficult part was getting a visa（签证）without an invitation．In the Italian consulate，one must hand in some official paper proving that one has a hotel booked for oneself in order to get the visa．Then we had to solve the ticket problem．Airlines often sell cheap tickets and we bought ours far in advance．The next step was to book a hotel．We finally booked a hotel about 30 km away from the heart of Rome and it was the perfect choice for our trip．
Every day we took a train that carried us to the heart of Rome．Our big house，which was surrounded by the forest，was a rare place for the fresh air and complete silence，beautiful views，hospitable hosts，comfortable living conditions delighting us to no end．Besides this，we were very lucky that our mistress was Russian．She gave us a lot of advice that was of great use．She told us what transport to choose and where the best places to go．
Don’t be afraid to arrange your trip by yourself．It’s not difficult! The only thing I’ll say right now is that we really enjoyed traveling by ourselves．We walked with a map and a guidebook to wherever we wanted and we even met some of our fellow countrymen on the way just two or three times．So if you’re also planning a ‘single’ trip，don’t forget to take a Russian-Italian phrasebook as people in Italy prefer to speak in their native tongue． Why does the author want to go to Italy again?
| A．He had a great time there． |
| B．Italy has a lot of attractions． |
| C．His friend invited him there． |
| D．He didn’t stay in Italy long enough． |
What does the author think was the hardest in preparing for his Italian trip?
| A．Buying cheap airline tickets to Italy before the traveling． |
| B．Getting a visa without an invitation from the Italian consulate． |
| C．Booking a comfortable hotel on his own in Rome． |
| D．Solving the ticket problem far in advance． |
Which of the following questions has NOT been answered in the passage?
| A．Why did the author decide to go to Italy for a holiday for the first time? |
| B．Why did the author decide not to follow a travel agency? |
| C．How did the author prepare for his trip? |
| D．What tools did the author use for his traveling? |
I once knew a man who was rich in his love for birds, and in their love for him . He lived in a grove full of all kinds of trees. He had no wife or children in his home. He was an old man with blue and kind eyes, and a voice that the birds loved.
While he was at work in the grove, the birds came close to pick up the worms(蠕虫) in the fresh earth he dug up. At first, they kept their distance from him, but they soon found he was a kind man, and would not hurt them, but liked to have them near him.
They knew this by his kind eyes and voice, which tell what is in the heart. So, day by day their faith in his love grew in them.
All the birds of the grove were soon his fast friends. They were on the watch for him, and would fly down from the green tree tops to greet him with their chirp(叽叽喳喳叫).
When he had no work to do, he took bread with him, and dropped the pieces on the ground. Down they would dart(俯冲) on his head and feet to catch them as they fell from his hand.
He showed me how they loved him, He put a piece of bread in his mouth, with one end of it out of his lips, Down they came like bees at a flower, and flew off with it piece by piece,
When they thought he slept too long in the morning, they would fly in and_____________.
They went with him to church, and while he sang his hymns in it, they sat in the trees, and sang their praises.
So the love and trust of birds were a joy to the old man all his life long.
The birds didn't get close to the old man at first because_____.
| A．he often hurt them |
| B．he disliked them near him |
| C．they knew little about him |
| D．they got no food from him |
The underlined word "faith" in Paragraph 3 means______ in Chinese.
| A．承诺 | B．祝福 | C．希望 | D．信任 |
Which of the following is the best expression to fill in the blank in the passage?
| A．follow him here and there |
| B．call him up with their chirp |
| C．drop pieces of bread on him |
| D．look for worms in the house |
It can be learnt from the story that______.
| A．birds are human's best friends |
| B．everyone gets on well with animals |
| C．one can get love in return for giving love |
| D．a person who loves birds is warm-hearted |
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