B
It is natural that children are curious about the world around them. For example, they want to know how their hearts beat. They want to know why the ocean water tastes salty.
As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. They become interested in the physical world around them: the plants, the animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、职业) in science.
Scientists spend their lives trying to find out about the world．Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .
These scientists have already discovered a lot about our world．For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.
Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty” scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.
We know a lot about our world, but there are still many answers that we do not have, and we are curious.
45．According to the passage, which of the following statements is true?
A．People are curious in the same way.
B．People in different countries are interested in different things.
C．Men and women are curious about different things.
D．People of different ages are interested in different things
46．Scientists who work with the biological sciences study____.
A．the earth , the oceans and the sky B．man-made things
C．plants and animals D．ocean water
47．When you run, your muscles need ____.
A．more nutrition and oxygen B．more signals C．more salt D．water
48．A rock cracks _____.
A．in wet regions B．in dry regions
C．at very high or very low temperatures D．when salty water falls in
It’s 8:30, time for John to start work. So he turns on his radio. Then he eats breakfast. As he eats, he reads his e-mail and reviews his to-do list. Then he sits on the sofa and thinks about an article he needs to write ... Wait a minute! Radio? Breakfast? Sofa? What kind of workplace is this? Well, actually it is John’s house, and he is a telecommuter — he works at home, communicating with the workplace through the Internet.
Like John, millions of people — and their employers — are finding that telecommuting is a great way to work. Telecommuters can follow their own timetables. They work in the comfort of homes, where they can also look after young children or elderly parents. They save time and money by not traveling to work. Their employers save, too, because they need less office space and furniture. Studies show that telecommuters change jobs less often. This saves employers even more money. Telecommuting helps society, too, by reducing pollution and traffic problems.
Jobs that are suited to telecommuting include writing, design work, computer programming and accounting. If a job is related to working with information, a telecommuter can probably do it.From the passage we can learn that John does his job.
| A．by telephone | B．through the Internet |
| C．in his office | D．away from home |
One of the advantages of telecommuting is that you can.
| A．work for several employers | B．enjoy a lot of traveling |
| C．get along well with other workers | D．work on your own schedule |
Telecommuters change jobs less often, so.
| A．their employers can save money |
| B．their employers will give them a higher pay |
| C．they can get more work experience |
| D．they will have a longer paid holiday |
The underlined phrase “suited to” in the third paragraph probably means “”.
| A．acceptable for | B．bad for |
| C．difficult for | D．fit for |
Say you are a 17th century construction worker who’s worked hard to build a splendid tower for the dead wife of your emperor.
Now say that the emperor orders your fingertips cut off so you can never build another one. Yes, this story is about the Taj Mahal, one of the most famous buildings in the world. And the tale behind the construction is just as impressive (令人赞叹的) as the building itself.
First, there’s the emperor of northern India, Shah Jehan, also called the King of the World. In 1612, Shah Jehan married Mumtaz Mahal. Mad in love, they had 14 children over the next 20 years. But then sadness came. As Mumtaz was about to give birth to child number 14, she said she heard her unborn baby cry out. It was a sign of death. And as Mumtaz lay dying, she asked Jehan to build a lasting memorial (纪念物) to celebrate their love.
The heartbroken Jehan ordered his wife’s dying wish carried out, and more than 20,000 workers worked nearly 22 years to complete the construction. In 1653, Jehan placed Mumtaz’s remains under the center of the building.
Later, son number five, Aurangzeb, murdered his brothers and took over the power from his aging father. Jehan lived the rest of his days, eight years, imprisoned not far from the Taj Mahal. Jehan was only allowed to climb onto the top of his prison to see the timeless treasure from a distance. But never again would he be allowed to visit it until he was buried next to his wife.
Today 25,000 people visit the Taj Mahal each day. Though the reason for building the tower was a strange and sad story, people who see its breath-taking beauty are reminded of the happiness that inspired its construction.The first two paragraphs were written mainly to show that ______.
| A．the Taj Mahal is an unusual historic building |
| B．India has some of the most famous buildings in the world |
| C．ancient Indian emperors were cruel |
| D．construction workers led a hard life in ancient India |
The Taj Mahal was first built as ______.
| A．a memorial building | B．a tourist attraction |
| C．a prison | D．a gift to Mumtaz |
From the passage we can learn that Mumtaz probably died in ______.
| A．1626 | B．1653 | C．1632 | D．1634 |
The underlined word “happiness” in the last paragraph refers to “______”.
| A．the happiness Jehan felt on completing the Taj Mahal |
| B．the pleasure tourists experience when visiting the Taj Mahal |
| C．the married happiness of the emperor and his wife |
| D．the great pleasure Jehan once found in exercising his power |
Scholars and researchers have tried to discover what personality characteristics go along with success in different cultural experiences. Their findings have often been unclear or incomplete. But three typical characteristics stand out in their reports: patience, a sense of humor, and the awareness of being unclear.
Patience, of course, is the ability to keep calm when things do not go as one wants them to, or as one hopes they would, or even as one was sure they would. Impatience sometimes brings improvements in relations with other people, but usually it does not.
A person with a sense of humor is less likely to take things too seriously and more ready to see the humor in his own reaction than a humorless person. The value of a sense of humor really needs to be paid more attention to.
“The awareness of being unclear” is a more difficult concept to understand than patience and a sense of humor. Foreigners often find themselves in situations that are unclear as they are newcomers. That is, they do not know what is happening in a certain situation. Perhaps they do not understand the local language well enough, or they do not know how some system or organization works, or they can’t be sure of different people’s roles in what is going on. “It’s like that I just got here from the moon,” a Chinese graduate student who newly arrived in the United States said. “Things are just so different here.”The passage mainly tells us ______.
| A．about some uneasy traveling experiences in foreign countries |
| B．about the three main ways to communicate with foreigners |
| C．about some typical characteristics in different cultural experiences |
| D．how to show your characters to foreigners |
According to the passage, which characteristic should be focused on most?
| A．The ability to keep cool. | B．The sense of humor. |
| C．Patience. | D．The awareness of being unclear. |
“The awareness of being unclear” refers to “______” .
| A．not knowing what is happening in a situation |
| B．not understanding the local language well enough |
| C．being aware that the situation is unclear |
| D．not knowing how some system or organization works |
By what the Chinese graduate student said, we can learn that ______.
| A．he is not used to the culture of America |
| B．he went to the United States to study the moon |
| C．he is a person with a sense of humor |
| D．he has just returned from the moon |
The home computer industry has been growing rapidly in the United States in the last ten years. Computers used to be large, expensive machines that were very difficult to use. But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses.
Computers have been designed to store information and compute problems that are difficult for human beings to work out. Some have voices that speak to their operators. Stores use computers to keep records of their inventories and to send bills to their customers. Offices use computers to copy letters, record business and keep in touch with other offices. People also use computers in their homes to keep track of the money they spend.
One important new use of computers is for entertainment. Many new games have been designed to be played on computers. People of all ages play these games. People also buy home computers to watch movies and listen to concerts at home. They have become very popular indeed.Compared with those of today, computers used to ______.
| A．work rapidly | B．be used for fun |
| C．be large and expensive | D．be easy to use |
In recent years, computers have become ______.
| A．more and more difficult to use | B．slower and slower |
| C．more and more expensive | D．smaller and smaller |
Home computers can be used for ______.
| A．doing business | B．writing letters |
| C．playing games | D．all of the above |
Salesmen use computers mainly to ______.
| A．talk with their friends |
| B．write letters |
| C．check the list of goods and send bills |
| D．play games for pleasure |
“When I grow up, I want to be...”
Almost all of us have thought about, or been asked to think about, our future careers. Our answers may differ greatly. Even now your aspirations may have changed from when you were in primary school.
However, it seems career options aren’t only based on personal taste. In a survey carried out by Teens, doctors, lawyers, and bankers were some of most popular careers that people said they hoped to follow. This is in line with a similar survey carried out in the UK in May 2011 by job website monster. Co.uk, in which medicine was the top choice among UK teenagers aged between 13 and 17.
Medicine and law are two of the oldest and best known professions. Their prestige (威望) may come from the fact that doctors and lawyers are some of the most esteemed members of society, and they make good money. Joining these high-profile professions is often seen as a sign of upward social mobility.
It is equally unsurprising that banking is now one of the most common career choices. Youngsters worldwide think of banking and see the money rolling in. Wealth is increasingly becoming one of the most important indicators of a successful career. British young men list the UK tycoon Alan Sugar, Microsoft founder Bill Gates and Facebook chief Mark Zuckerberg as their top role models “for their wealth”. Just as Chinese teenagers see being a banker as a good and fun pathway to “wealth”.
However, not every child has the makings of doctor, lawyer, or banker. They are those who see fulfillment and happiness in other areas, and many teenagers dare to ink more individuality into their career options. As the Teens’ survey discovered, a variety of unconventional jobs---coffee shop owner, gourmet(美食家)，waiter at a fast food restaurant---are among teenagers’ career choices. They can be equally interesting and rewarding jobs.
With every choice comes responsibility and challenge, and all career paths require specific education and training, you have to learn to balance optimism and confidence with being realistic about your particular talents and skills.What is the passage mainly about?
| A．Careers in teenagers’ mind. |
| B．Choosing a good job is very important. |
| C．Teenagers in the UK like doctors. |
| D．The choice of career needs challenge. |
What is the top career choice among UK teenagers aged between 13 and 17 according to the article?
| A．Medicine | B．Law | C．Bank | D．Education |
According to the article, all of the following are the benefits of being a doctor except_______.
| A．respect from others | B．the oldest profession |
| C．high pay | D．upward social mobility. |
What can we learn from the last paragraph?
| A．According to your particular talents and skills, you can choose your favorite career. |
| B．Specific education and training can help get a good job. |
| C．Whatever career you choose, you should balance optimism and confidence with being realistic about your particular talents and skills. |
| D．Responsibility is the most important when you choose a good job. |