Transportation and communication networks bring people together. Yet sometimes people themselves create barriers to transportation and communication. In some countries, laws stop people from moving freely from place to place.
Over the centuries, many groups of people have been denied the freedom to travel because of their race, religion, or nationality. In the Middle Ages, for example, Jews were often forbidden to move about freely within certain cities. South Africa's government used to require black Africans to carry passes when they travel within the country. Some governments require all citizens to carry identification papers and to report to government officials whenever they move.
Countries set up Customs posts at their borders. Foreign travellers must go through a Customs inspection before they are allowed to travel in the country. Usually travellers have to carry special papers such as passports and visas(签证). Some countries even limit the number of visitors to their country each year. Others allow tourists to visit only certain areas of the country, or they may require that travellers be with an official guide at all times during their stay.
Many of those barriers to travel also act as barriers to communication. When two governments disagree with each other on important matters, they usually do not want their citizens to exchange news or ideas freely. Countries often try to keep military or industrial information secret.
Today, people have the ability to travel, to communicate, and to transport goods more quickly and easily than ever before. Natural barriers that were difficult or dangerous to cross a hundred years ago can now be crossed easily. The barriers that people themselves make are not so easy to overcome. But in spite of all the different kinds of barriers, people continue to enjoy travel and the exchange of goods and ideas.The examples in paragraph 2 are used to tell the readers that _______
| A．Customs posts are necessary at the borders of the countries |
| B．people have been allowed to travel freely within the country |
| C．people have not been permitted to travel freely for various reasons |
| D．travellers have to carry special papers such as passports and visas |
Some governments limit the freedom of communication because___
| A．they think such freedom will lead to wars |
| B．they more often than not agree with each other on important matters |
| C．they intend to keep their national secrets unknown to others |
| D．they want to show their authority over communication |
We may learn from the passage that _______
| A．people do not care about the removal of barriers between countries. |
| B．people can not remove the obstacles made by themselves |
| C．barriers should be taken for granted as they always exist |
| D．man-made barriers are sometimes harder to overcome than natural ones |
Which of the following can serve as the best title of the passage?
| A．Functions of Communication | B．Barriers Made by People |
| C．Restrictions on Transportation | D．Progress of Human Society |
A huge cloud of dust rose and an overpass disappeared. This was the scene in Zhuzhou，Hunan Province on May 17.Nine people were killed and 16 injured.
Things were similar last year in the Sichuan earthquake. Thousands of people were buried in the ruins and lost their lives. What if we could have warned them?
People are always racking their brains to find a way of preventing buildings’ collapse. Better materials and technology help，but they are not a solution.
Just like humans，a building has its own life cycle from “birth” to “death”．If we know when a building is going to collapse，we can repair it in advance or get out of it before it falls.
Now，scientists at the University of Illinois have developed a material that turns red before it breaks. The invention could be used in things like climbing ropes or bridge supports.
The research was led by Nancy Sottos，a professor at the university’s Beckman Institute，and Douglas Davis，a graduate research assistant.
The secret behind the colorchanging material is a type of molecule (分子)．A molecule is a group of atoms held together by chemical bonds. Imagine you and your friends standing in a circle，holding hands. Each person stands for one atom，your hands represent the bonds，and the entire circle represents a molecule. If one person lets go of his or her hands，the molecule changes color.
The research team put the molecule into a soft material. When the researchers stretched the material，it turned bright red for a few seconds before it broke into two pieces. When they repeatedly stretched and relaxed the material，without breaking it，it only turned a little red.
The major problem is that light can get rid of the red color. When the team shone bright light on the molecule，the broken bond was fixed，and the color disappeared.
If the bright light keeps the red color from appearing，the material’s warning system will be useless. Scientists still have a lot of work to do before the colorchanging molecules can be used outside the lab.What does the passage mainly introduce?
| A．The collapse of an overpass in Zhuzhou，Hunan Province. |
| B．The Sichuan earthquake |
| C．A material that turns red before it breaks. |
| D．A way of preventing building from collapsing. |
The underlined words “racking their brains” in the third paragraph mean ________.
| A．suffering a lot | B．collecting beyond imagination |
| C．losing a lot | D．thinking very hard |
Which of the following is a WRONG statement?
| A．Thousands of people died from the collapse of buildings in the Sichuan earthquake because they hadn’t been warned. |
| B．There is no building that will never collapse. |
| C．A new material has been applied to buildings to warn people of collapse. |
| D．A colorchanging material can turn red before it breaks. |
What can we infer from the passage?
| A．The colorchanging molecules are certain to be used outside the lab. |
| B．There will be no collapse with the help of the colorchanging material. |
| C．There is a long way to go before the material can be applied. |
| D．The problem caused by bright light will be solved by scientists. |
A tent can be one of the more costly items on your camping equipment shopping list. It is definitely something that you need to consider carefully.
By seeing a tent for real you will be able to get a better impression of its size and construction in the traditional shop. However，the downside is that，unless you are experienced，you may miss out some of the details that the manufacturer’s promotional material makes clear. Cheap tents often look similar to the quality models they are mimicking(模仿)，but you can be sure that they use inferior(次的) materials and probably have lower design standards.
Shop staff are often campers themselves. That means they usually can give lots of advice. If a shop assistant agrees with your own conclusions，that will be great；if they try to change your decision with a clear and reasonable argument，then that will be worth considering；if they just try to bamboozle(欺骗)，or even bully，you then walk away.
The Internet is a wonderful tool，and so long as you know how to make the most of search engines and put in a little effort，you really have the perfect answer waiting to be found. That answer will be different for every camper as each of us has different needs. Don’t be surprised to see your favorite criticized somewhere，but if you see too much criticism，then you had better start thinking again. No problem. You won’t have spent anything yet，so think of it positively as a large expense saved.
Probably the best approach，if you have the time，is to research tents online and make a short list. Then try to inspect those tents at nearby shops. Then you can make a final decision on where to buy your chosen model based purely on total cost.The underlined word “downside” in Paragraph 2 means “________”．
| A．disadvantage | B．instruction | C．argument | D．principle |
It can be concluded from the third paragraph that________.
| A．shop assistants usually enjoy going camping |
| B．shop assistants usually have practical advice |
| C．you should consider your idea repeatedly |
| D．it is impolite for you to trouble shop assistants |
You can make use of the Internet to________.
| A．meet your different needs |
| B．find the answer for every camper |
| C．help you out of trouble |
| D．find your favorite tent |
Which of the following would be the main idea of this passage?
| A．It is good to buy your tent in the traditional shop. |
| B．You’d better buy a tent with the help of the Internet. |
| C．Better buy a tent combining seeing tents for real in shops and researching them online. |
| D．Going camping is really beneficial to your health. |
I am a good mother to three children. I have tried never to let my profession stand in the way of being a good parent.
I no longer consider myself the center of the universe. I show up. I listen. I try to laugh. I am a good friend to my husband. I have tried to make marriage vows (誓约) mean what they say. I am a good friend to my friends, and they to me. Without them, there would be nothing to say to you today.
So here's what I wanted to tell you today: get a life. A real life, not a desire of the next promotion (提升), the bigger paycheck, the larger house.
Get a life in which you are not alone. Find people you love，and who love you. And remember that love is not leisure(休闲) but work. Pick up the phone. Send an email. Write a letter. And realize that life is the best thing and that you have no business taking it for granted.
It is so easy to waste our lives，our days，our hours，and our minutes. It is so easy to exist instead of living. I learned to live many years ago. Something really，really bad happened to me，something that changed my life. If I had my choice，it would never have been changed at all. And what I learned from it is what，today，seems to be the hardest lesson of all.
I learned to love the journey，not the destination. I learned to look at all the good in the world and tried to give some of it back because I believed in it，completely and totally. And I tried to do that，in part，by telling others what I had learned.
By telling them this：read in the backyard with the sun on your face. Learn to be happy. And think of life as a deadly illness，because if you do，you will live with joy and passion(激情) as it ought to be lived.How did the author form her view of life?
| A．Through social experience. |
| B．By learning from her friends. |
| C．Through an unfortunate experience. |
| D． From her children and husband. |
By the underlined sentence “It is so easy to exist instead of living.” in the fifth paragraph，the author really means that people tend to________.
| A．make a living rather than live a real life |
| B．work rather than enjoy life |
| C．waste a lot in life |
| D．forget the most important lesson in life |
What’s the author’s attitude toward work?
| A．Do it well to serve others. |
| B．Earn enough money to make life better. |
| C．Try your best to get higher position and pay. |
| D．Don’t let it affect your real life. |
It can be inferred from the passage that________.
| A．the author is a success in personal life |
| B．the author doesn’t try her best to work well |
| C．the author spends all her time caring for her children |
| D．the author likes traveling very much |
A few days ago，I went to school with lots of books，hoping to get a locker (锁柜)．Suddenly，it started raining heavily. I hurried to pay for my locker，but I was disappointed when they informed me they only accepted cash. I was $7.00 short，which meant I had to carry the books back home. It would be an exhausting (令人筋疲力尽的) twohour journey back home with all those books.
An elderly gentleman nearby noticed my problem. He asked how much cash I needed. When I told him I was $7 short，he quickly took out the money from his wallet. “You don’t have to pay me back，”he said. I was speechless；I didn’t know whether to take the money or come back with the books the next day. A young student who was working there noticed my hesitation. “He’s really nice，” said the student. “I was starving this morning and he bought breakfast for me. He always helps people in different ways.”
The next day，I went to him and thanked him for trusting me and lending me the money. He said he forgot about it and didn’t expect I would give it back. “I’m very happy，”he said，“not because I’m getting my money back，but because this is the right way to go—whatever you get from this world，give it back as much as you possibly can. Spread kindness around the world with the smallest things you can do.”
Later，I found out he wasn’t involved with any charity organizations. He has been performing these types of acts for years. Earlier，someone had done something incredibly kind for him and he has been spreading the kindness ever since. He taught me a very important lesson in life—we come to this world with nothing and we will leave with nothing. Whatever we own，it will become somebody else’s and whatever we leave，it will become somebody else’s.When the old gentleman offered the money，the writer was________.
| A．touched | B．hesitant | C．amazed | D．embarrassed |
From Paragraph 3 we learn that________.
| A．the gentleman worked in the school |
| B．the gentleman was kind but forgetful |
| C．the gentleman refused to take back the money |
| D．the gentleman thought it right to give back to society |
Why had the gentleman been doing acts of kindness?
| A．He wanted to join the charity organizations. |
| B．He managed a lot of other people’s money. |
| C．He had received help from others before. |
| D．He thought money was of little importance. |
Can noncombustion (非燃烧) technology create a no-pollution way to drive？Imagine pulling into a service station to fuel up your car. But not at the gas pump or electric battery charger —at the air pump! That’s not hot air, either! The next generation of cars may run on thin air. Wouldn’t that be an incredible way to cut both pollution and dependence on foreign oil?
If you’ve ever inflated a balloon and then let it go, you’ve got the basics to test-drive the amazing MiniCAT, currently being developed by Noteur Development International (MDI), headquartered in Luxembourg. Invented by Formula One racing car designer Guy Negre, this experimental vehicle is unlike any car you’ve ever seen. While your family’s traditional car or SUV draws its horsepower using combustion, the only fuel that MiniCAT needs (CAT stands for Compressed Air Technology) is the air we breathe.
Start with about 25,000 gallons of air. Now, press it all into a space smaller than your school locker—because that’s the size of two super-strong, high-pressure air tanks, made from fiber and fixed beneath the air car.
Confining that much air inside those small tanks generates an internal pressure of over 4,000 pounds per square inch. That’s over 300 times normal air pressure.
When this cold, high-pressure air enters MiniCAT’s unique engine, it interacts(交互作用) with warmer air to create pressure waves that pump the engine’s engineered pistons (活塞) to move the car. MiniCAT’s projected top speed is 60 miles per hour, with a range of 120 miles on a full air supply.What is the passage mainly about?
| A．Ways to cut down air pollution. |
| B．Cars that run on thin air. |
| C．Formula One racing car designer. |
| D．Dependence on foreign oil. |
What is MiniCAT according to the passage?
| A．The name of a car. |
| B．The name of a balloon. |
| C．The name of a car company. |
| D．The name of a car designer. |
The underlined world “Confining” in Paragraph 4 can be replaced by ___________.
| A．Keeping | B．Preventing | C．Pushing | D．Running |
What does the last paragraph tell us?
| A．How much pressure the air creates. |
| B．How the car works. |
| C．What the normal air pressure is. |
| D．How the air gets into the engine. |