-What will people die of 100 years from now? If you think that is a simple question, you have not been paying attention to the revolution that is taking place in bio-technology(生物技术). With the help of new medicine, the human body will last a very long time. Death will come mainly from accidents, murder and war. Today’s leading killers, such as heart disease, cancer, and aging itself, will become distant memories.
In discussion of technological changes, the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times. How long can humans live, Human brains were known to decide the final death. Cells are the basic units of all living things, and until recently, scientists were sure that the life of cells could not go much beyond 120 years because the basic materials of cells, such as those of brain cells, would not last forever. But the upper limits will be broken by new medicine. Sometime between 2050 and 2100, medicine will have advanced to the point at which every 10 years or so, people will be able to take medicine repair their organs(器官). The medicine, made up of the basic building materials of life, will build new brain cells, heart cells, and so on—in much the same way our bodies make new skin cells to take the place of old ones.
It is exciting to imagine that the advance in technology may be changing the most basic condition of human existence, but many technical problems still must be cleared up on the way to this wonderful future. According to the passage, human death is now mainly caused by __________.
| A．diseases and aging |
| B．accidents and war |
| C．accidents and aging |
| D．heart disease and war |
In the author’s opinion, today’s most important advance in technology lies in __________.
| A．brain cell | B．the Internet |
| C．medicine | D．human organ |
Humans may live longer in the future because _________.
| A．heart disease will be far away from us |
| B．human brains can decide the final death |
| C．the basic materials of cells will last forever |
| D．human organs can be repaired by new medicine |
How long can humans live in the future according to the passage?
| A．Over 100 years. |
| B．More than 120 years. |
| C．About 150 years. |
| D．The passage doesn't tell us. |
Throughout the world, boys and girls prefer to play with different types of toys. Boys typically like to play with cars and trucks, while girls typically choose to play with dolls. Why is this? A traditional sociological explanation is that boys and girls are socialized and encouraged to play with different types of toys by their parents, peers, and the “society”. Growing scientific evidence suggests, however, that boys’ and girls’ toy preferences may have a biological origin.
In 2002, Gerianne M. Alexander of Texas A&M University and Melissa Hines of City University in London surprised the scientific world by showing that monkeys showed the same sex typical toy preferences as humans. In the study, Alexander and Hines gave two masculine toys (a ball and a police car), two feminine toys (a soft doll and a cooking pot), and two neutral toys (a picture book and a stuffed dog) to 44 male and 44 female monkeys. They then assessed the monkeys’ preference for each toy by measuring how much time they spent with each. Their data showed that male monkeys showed significantly greater interest in the masculine toys, and the female monkeys showed significantly greater interest in the feminine toys. The two sexes did not differ in their preference for the neutral toys.
If children’ s toy preferences were largely formed by gender socialization, as traditional sociologists’ claim, in which their parents give “gender appropriate” toys to boys and girls, how can these male and female monkeys have the same preferences as boys and girls？They were never socialized by humans, and they had never seen these toys before in their lives.Traditional sociologists believe boys’ and girls’ toy preferences ________
| A．are passed down from their parents |
| B．are largely formed in later life |
| C．have nothing to do with gender socialization |
| D．have a biological origin |
The study by Alexander and Hines shows that monkeys________
| A．also have a sex typical toy preference |
| B．also play toys as humans do |
| C．have no toy preferences |
| D．like to play different toys at different time |
Alexander and Hines carried out the study to ________
| A．find more evidence for traditional sociology |
| B．test the intelligence of monkeys |
| C．test whether monkeys like to play toys |
| D．find out why boys and girls prefer different toys |
According to the study, if given a stuffed dog, _______
| A．only the male monkeys showed interest |
| B．the female monkeys showed more interest |
| C．the male and female monkeys showed the same interest |
| D．neither the male nor the female monkeys showed any interest |
The National Gallery of Art in Washington, D.C., is one of the world's greatest art museums. Millions of people have entered its doors to see paintings by the world's fine artists. But if these priceless masterpieces are to be preserved, the Gallery must protect them carefully. The Gallery's 135-man guard force has successfully prevented them from being stolen, but protecting the paintings from nature is a greater problem.
In past times, the owners of paintings did not protect them from damaging changes in humidity (湿度) and temperature. As a result, the life of these paintings were shortened. In the National Gallery, however, humidity and temperature are carefully controlled. The building is air-conditioned in summer and heated in winter. The air-conditioning and heating system are so important to the life of the painting that the Gallery has two of each system. If one should fail, the extra one can take over.
Light is another enemy of paintings. Ultraviolet rays (紫外线) in light cause paintings to fade (褪色). Long ago, paintings often hung in dark churches and palaces. A coat of varnish (清漆) was a protection from the weak light. But when museums took over the care of many paintings, they were often hung in brighter light than before. Soon they were in danger of fading. The damaging effects of light were increased when the museums removed the varnish coating, yellowed with age.
To protect its paintings, the National Gallery put a special kind of glass in its skylights. This glass allows visible lights to enter the building but it keeps out harmful ultraviolet rays. The Gallery has also developed new and better varnishes which help to keep paintings from fading. Thanks to these new precautions, many of the world's greatest paintings are being well protected for future generations to enjoy.The text mainly tells us about ______.
| A．the guard force in the National Gallery |
| B．protecting great paintings from nature |
| C．priceless paintings of past times |
| D．the air-conditioning and heating systems in the National Gallery |
The underlined word "precautions" in Paragraph 4 is closest in meaning to ______.
| A．decorations |
| B．problems |
| C．suggestions |
| D．applications |
From the text we can infer that_______.
| A．great artists painted in dark churches and palaces |
| B．you can touch these paintings while you are in the National Gallery |
| C．the care of the world's greatest paintings is both a big responsibility and a great challenge |
| D．the guard force in the Gallery has not done a good job |
The earth is not the only body that travels around the sun. With it are eight other planets, fellow members of the sun’s family.
Two of them, Mercury (水星) and Venus, are nearer while the other six, namely Mars, Jupiter, Saturn, Uranus, Neptune and Pluto, also in their given order from the sun, are farther from the sun than the earth is. The farther they are, the longer trips they make around the sun. People noticed long ago that these traveling bodies moved around in the sky in definite paths. It is a force called gravity that holds them in their paths.
We know that every little bit of matter in the universe pulls upon every other bit of matter. The pull between two bodies is proportional (成比例的) to the product of their masses. Because the sun is so large the pull between the sun and the planets are thus great. If it were not for this pull, the planets would fly off into space. In the same way there exists a pull between the earth and the moon, which keeps the moon traveling in its orbit around our planet, the earth. Gravity holds you to its surface, and pulls back to it the ball which you throw into the air. Of course the ball also pulls on the larger earth but the earth is so much larger that the pull is not noticed.
Now remember that large bodies exert a greater pull than smaller ones which contain less material. But each object in the universe, no matter how small, pulls on all other objects to some degree.There are ________ that travel around the sun in the sun’s family.
| A．nine planets | B．eight planets |
| C．one star and ten planets | D．the earth and the sun |
Which two planets make the longest trips around the sun among all the planets in the solar system?
| A．Mercury and Venus. | B．Neptune and Pluto. |
| C．Saturn and Uranus. | D．Mars and Jupiter. |
From the passage we can see__________
| A．all the objects, big or small, must exert the same pull on one another |
| B．large objects exert the same pull on anybody as small objects |
| C．small objects exert the same on large ones |
| D．each object in the universe exerts a pull on all other objects |
From the sentence “The pull between two bodies is proportional to the product of their masses.” We can infer that the pull between__________
| A．the sun and the moon is greater than between the sun and the earth |
| B．the earth and the moon is greater than that between the sun and the earth |
| C．the sun and the earth is greater than that between the earth and the moon |
| D．the sun and the earth is the same as that between the earth and the moon |
A newly-wed couple on a four-month honeymoon were hit by six natural disasters, including the Australian floods, Christchurch earthquake and Japanese tsunami.
Stefan and Erika Svanstrom left Stockholm, Sweden, on December 6 and were immediately stranded in Munich, Germany, due to one of Europe's worst snowstorms. Travelling with their baby daughter, they flew on to Cairns in Australia which was then struck by one of the most tremendous tonadoes in the nation's history. From there, the couple, in their 20s, were forced to shelter for 24 hours on the cement floor of a shopping centre with 2,500 others. "Trees were being knocked over and big branches were scattered across the streets," Mr Svanstrom told Sweden's Express newspaper. "We escaped by the skin of our teeth," said Svanstrom.
They then headed south to Brisbane but the city was experiencing massive flooding, so they crossed the country to Perth where they narrowly escaped raging bush fires. The couple then flew to Christchurch, New Zealand, arriving just after a massive magnitude 6.3 earthquake destroyed the city on February 22. Mrs. Svanstrom said, "When we got there the whole town was a war zone." "We could not visit the city since it was completely blocked off, so instead we travelled around before going to Japan." But days after the Svanstroms arrived, Tokyo was rocked by Japan's largest earthquake since records began. "The trembling was horrible and we saw roof tiles fly off the buildings," Mr. Svantrom said. "It was like the buildings were swaying back and forth."
The family returned to Stockholm on March 29,2011 after a much calmer visit to their last destination China. But Mr. Svanstrom, who also survived the destructive Boxing Day tsunami that hit southeast Asia in 2004, said the marriage was still going strong. He added, "I know marriages have to endure some trials, but I think we have been through most of them." "We've certainly experienced more than our fair share of catastrophes, but the most important thing is that we're together and happy." Mrs. Svantrom added: “ To say we were unlucky with the weather doesn’t really cover it! It’s so absurd that now we can only laugh.”How many countries did the couple visit during their honeymoon?
| A．6. | B．5. | C．4. | D．3. |
What's the right order of the following things according to the passage?
a. The couple headed south to Brisbane.
b. The couple flew to Cairns.
c. The couple flew to Christchurch.
d. The couple were stranded in Munich.
| A．a-b-c-d |
| B．a-c-b-d |
| C．d-b-c-a |
| D．d-b-a-c |
By saying "We escaped by the skin of our teeth.", Mr. Svanstrom meant that _____
| A．The tornadoes was tremendous |
| B．They escaped from the tornadoes easily. |
| C．They had a narrow escape from the tornadoes |
| D．There was something wrong with their teeth |
According to the last two paragraphs, which word can best describe Mr. Svanstrom?
| A．ambitious. |
| B．enthusiastic |
| C．considerate |
| D．optimistic |
People are talking about the “new economy.” It’s very different from the “old economy”.
In the old economy, people travel to work. They buy things in stores. They use the post office, the fax and the telephone to send information. They see people face-to-face at their jobs or in stores. People get information from newspapers, radio, television, books and libraries.
In the new economy, people do business through the “net,” which is a connection of millions of computers everywhere in the world. In the new economy, workers often work at home. They can get information online. They can communicate with employers and co-workers by e-mail. Businesses have “virtual (虚拟)stores”. They are websites on which customers can see the products. Businesses can sell to customers anywhere in the world.
In the new economy, people live a fast paced, convenient and colorful life. The whole world develops more quickly than before. But the new economy is a double-edge sword. Its disadvantage is also obvious. For example, the Internet has led to a huge increase in credit card cheating. Some illegal websites offer some cheap or banned goods or services. Online shoppers who enter their credit card information may never receive the goods they want to buy and their card information could even be for sale in an illegal website. So people in the new economy should be smarter and knowledgeable.The cause of the differences between the new economy and the old economy is ____.
| A．the change of people’s idea |
| B．the business people do |
| C．the use of the Internet |
| D．the change of people’s life |
“But the new economy is a double-edge sword ” in the last passage means_____.
| A．The new economy is as sharp as a sword |
| B．The new economy has advantages and disadvantages |
| C．The new economy is better than the old economy |
| D．Both the new economy and the old economy have disadvantages |
Which of the following is NOT true?
| A．People can get all kinds of information on the Internet. |
| B．Telephone, radio, television, newspapers and so on will disappear in the new economy. |
| C．People in the new economy should have high quality. |
| D．Life in the new economy is more comfortable than the one in the old economy. |