The high noise of modern life may affect speech and language development in the very young, according to a study that found the auditory (听觉的) parts of the brains of young mice are slower to organize properly in the presence of continuous sounds.
Researchers at the University of California, San Francisco, reared a group of rats in an environment of continuous background noise and found that their brain circuits that receive and interpret (解释) sound did not develop at the same rate as animals that were raised in a quieter environment.
Edward F. Chang and Michael Merzenich, co-authors of the study appearing in the journal Science, said that the continuous noise delayed the organization of auditory neurons (神经细胞) during a critical two-to-three-week period after the rat pups were born.
For rats not exposed to the noise, the auditory cortex(皮层) neurons during this period gathered into a smaller area and began developing a selective response to sounds.
But for the noiseexposed rats, this organization was slowed, causing a delay in the development of the ability to discriminate(辨别) specific sound tones. The researchers said it took three or four times longer for the rats raised in a noisy environment to reach the basic bench marks (基准) of auditory development seen in the rat pups not exposed to noises.
Although the rat is not a perfect model for what happens in humans, the authors note, the study does suggest that high levels of noise might possibly affect some language learning in babies.
“These findings suggest that environmental noise, which is commonly present in contemporary child-rearing environments, can potentially contribute to auditory and language-related development delays,”the authors wrote in Science.
The authors noted that although the brain development was delayed in rats exposed to the noise, their brains did eventually mature (成熟的) normally.The scientists at California University studied rats_______.
| A．of different age groups | B．with different habits |
| C．in different environments | D．from different areas |
The rats exposed to noise, compared to those not exposed, _______.
| A．were more sensitive | B．were duller |
| C．grew up more slowly | D．gathered together more quickly |
The result of the research mainly tells us that noise _______.
| A．delays brain development | B．stops baby growth |
| C．affects speech and language | D．destroys brains |
The findings of the research are said to have special connections with _______.
| A．causes of noises | B．medical science |
| C．other living things | D．human babies |
I had an experience some years ago, which taught me something about the ways in which people make a bad situation worse by blaming themselves. One January, I had to hold two funerals on successive days for two elderly women in my community. Both had died “full of years”, as the Bible would say. Their homes happened to be near each other, so I paid condolence (吊唁) calls on the two families on the same afternoon.
At the first home, the son of the deceased (已故的) woman said to me, “If only I had sent my mother to Florida and gotten her out of this cold and snow , she would be alive today. It’s my fault that she died.” At the second home, the son of the other deceased woman said, “If only I hadn’t insisted on my mother’s going to Florida, she would be alive today. That long airplane ride, the sudden change of climate, was more than she could take. It’s my fault that she’s dead.”
You see that any time there is a death, the survivors will feel guilty. Because the course of action they took turned out badly, they believe that the opposite course — keeping Mother at home, putting off the operation — would have turned out better. After all, how could it have turned out any worse?
There seem to be two elements involved in our willingness to feel guilty. The first is our pressing need to believe that the world makes sense, that there is a cause for every effect and a reason for everything that happens. That leads us to find patterns and connections both where they really exist and where they exist only in our minds.
The second element is the view that we are the cause of what happens, especially the bad things that happen. It seems to be a short step from believing that every event has a cause to believing that every disaster is our fault. The roots of this feeling may lie in our childhood.
A baby comes to think that the world exists to meet his needs, and that he makes everything happen in it. He wakes up in the morning and summons the rest of the world to its tasks. He cries, and someone comes to attend to him. When he is hungry, people feed him, and when he is wet, people change him. Very often, we do not completely outgrow that childish view that our wishes cause things to happen.The author had to hold the two women’s funerals probably because .
| A．he wanted to comfort the two families | B．he was an official from the community |
| C．he had great pity for the deceased | D．he was priest of the local church |
People feel guilty for the deaths of their loved ones because .
| A．they couldn’t find a better way to express their sorrow |
| B．they believe that they were responsible |
| C．they had neglected the natural course of events |
| D．they didn’t know things often turn out in the opposite direction |
According to the passage, the underlined part in paragraph 4 probably means that .
| A．everything in the world is predetermined |
| B．the world can be interpreted in different ways |
| C．there’s an explanation for everything in the world |
| D．we have to be sensible in order to understand the world |
What’s the main idea of the passage?
| A．Life and death is an unsolved mystery. |
| B．Every story should have a happy ending. |
| C．Never feel guilty all the time because not every disaster is our fault. |
| D．In general, the survivors will feel guilty about the people who passed away. |
What is a good education? The question is far from being answered. Once more, colleges and universities are changing their programs: they drop "fun courses" and restart some of the traditional subjects neglected (忽视) since the 1960s. Many great schools are again requiring the students to take a number of classes in English, history, literature, the social sciences, philosophy, the natural sciences, and art if they want to get a degree. Meanwhile, the experts are trying to describe the good education of our time. Obviously the purely vocational training once favored is not enough. But neither is the gentleman's education of the nineteenth century. Educational programs must meet the demands of a modern world where men and women have to work and to deal with big problems.
What, then, is a good education of this century? Some educators suggest that it should include foreign languages and the study of foreign cultures; a mastery of English, including the ability to write and speak well, because communications have become all-important in the modern world, and also because "a person who doesn't speak and write clearly doesn't reason clearly either"; some knowledge of the social sciences (sociology, psychology) that deal with human relations and human problems; some basic knowledge of modern science, which would enable future voters to be better informed about current problems like nuclear. Finally, many educators insist that all college graduates should be familiar with computers and modern information system since the educated professionals of tomorrow will have to understand their machines. Is that all? "No, of course not." answer the educators. "We have not mentioned the two great building blocks of education: history and literature!" The best title for this passage might be _______.
| A．Education | B．A Mastery of English |
| C．A Good Education | D．Something About Study |
The underlined word "drop" in the first paragraph means _______.
| A．desert | B．dislike | C．decline | D．neglect |
The author thinks that the question about what a good education is _______.
| A．has been answered fairly well |
| B．hasn't been put forward yet |
| C．has been dealt with successfully |
| D．has not been answered satisfactorily |
Some educational experts believe a mastery of English should include the ability _______.
| A．to read fast | B．to write and speak well |
| C．to write clearly and accurately | D．to listen and speak skillfully |
This tour takes you back in history to a moment that “will live in infamy （声名狼藉）. ” Explore the historic artifacts at the Arizona Memorial Visitor Center commemorating（纪念） the attack on Pearl Harbor, then travel around beautiful Oahu on a Circle Island guided bus tour.
The Arizona Memorial Visitor Center is Hawaii’s number one visitor attraction. View the film of the attack on Pearl Harbor and browse the historic artifacts on display. Then ride the Navy launch across Pearl Harbor to visit the Arizona Memorial. Then, board a tour bus for a scenic trip around the island of Oahu. Get your cameras ready for the beautiful view over Windward Oahu at Nu’uanu Pali Lookout. Visit Byodo－In Temple, which is set against a picturesque mountain backdrop.
You’ll also see the famous North Shore surfing beaches of Sunset, Banzai Pipeline, and Waimea Bay and drive through rustic Haleiwa Town. Visit Dole Plantation and discover the history of Hawaii’s pineapple industry before enjoying a no host lunch at the Polynesian Cultural Center (lunch is not included in the listed-price).
Inclusions: Scenic bus tour of Oahu island
Film viewing at Arizona Memorial Visitor Center. Pearl Harbor
Visit of Byodo－In Temple and Dole Plantation
Available:
Mon. —Fri.
Hours of operation:
7 AM to 5 PM
Note:
Strict security measures forbid purses, handbags, fanny packs, backpacks, camera bags, diaper bags, luggage and／or other items. Visitors may bring a camera and cam-recorder. A storage facility, operated by a private vendor, is available for visitors coming to the USS Arizona Memorial, USS Bowfin Submarine Museum & Park, the Battleship Missouri and the Pacific Aviation Museum. What is the purpose of the passage above?
| A．To introduce the beautiful scene in Oahu. | B．To tell the writer attractions in Hawaii. |
| C．To attract more tourists. | D．To describe a wonderful tour in Oahu. |
Which of the following is the right order of the tour?
| A．The Arizona Memorial, Byodo-In Temple, Nu’uanu Pali Lookout, Polynesian Cultural Center |
| B．Pearl Habor, Dole Plantation, Nu’uanu Pali Lookout, Sunset Beach |
| C．Pearl Habor, North Shore, Byodo-In Temple, Dole Plantation |
| D．The Arizona Memorial, Nu’uanu Pali Lookout, Dole Plantation, Polynesian Cultural Center |
A tourist will see everything below at Pearl Harbor except _______.
| A．the Arizona Memorial | B．some historic artifacts |
| C．a film | D．Windward Oahu |
On October 19, 1959, the first Special English program was broadcast on the Voice of America. It was an experiment. The goal was to communicate by radio in clear and simple English with people whose native language is not English. Experts said the goal was admirable, but the method would not work. They were proved wrong. The Special English programs quickly became some of the most popular on VOA. And they still are.
Forty years later, Special English continues to communicate with people who are not fluent in English. But during the years its role has expanded. It also helps people learn American English. And it provides listeners, even those who are native English speakers, with information they cannot find elsewhere.
Today, Special English broadcasts around the world seven days a week, five times a day. Each half-hour broadcast begins with ten minutes of the latest news followed by 20 minutes of feature programming. There is a different short feature every weekday about science, development, agriculture and environment, and on the weekend, about news events and American idioms.
Three elements make Special English unique. It has a limited vocabulary of 1500 words. Most are simple words that describe objects, actions or emotions. Some are more difficult. They are used for reporting world events and describing discoveries in medicine and science. Special English is written in short, simple sentences that contain only one idea. No idioms are used. And Special English is spoken at a slower pace, about two-thirds the speed of Standard English. This helps people learning English hear each word clearly. It also helps people who are English speakers understand complex subjects.
Through the years, Special English has become a very popular tool for teaching English, even though it was not designed as teaching program. It succeeds in helping people learn English in a non-traditional way. Individuals record the programs and play them over and over to practice their listening skills. In countries around the world, English teachers assign Special English to their students. They praise it for improving their students' ability to understand American English and for the content of the programs. Universities and private companies in many countries produce packages of Special English materials for student use.At the beginning, Special English program was.
| A．well received |
| B．rejected by native people |
| C．doubted by some professionals |
| D．intended for teaching English |
What kind of English is spoken on Special English?
| A．British English. |
| B．American English. |
| C．Both British and American English. |
| D．Not certain. |
Which of the following are the elements that make Special English unique?
a．limited vocabulary
b．short simple sentences
c．good communication method
d．slow speed
e．interesting feature programming
| A．a, b, c | B．a, c, d | C．a, b, d | D．b, d, e |
From the last paragraph we can infer that.
| A．listening to Special English can be a student’s homework |
| B．listening to Special English can improve the content of the program |
| C．some student record the Special English material for sale |
| D．learning English from VOA is a traditional way for English learner. |
How could we possibly think that keeping animals in cages in unnatural environments－mostly for entertainment purposes－is fair and respectful?
Zoo officials say they are concerned about animals. How ever, most zoos remain “collections” of interesting “things” rather than protective habitats (栖息地). Zoos teach people that it is acceptable to keep animals bored, lonely, and far from their natural bones.
Zoos claim to educate people and save endangered species(物种), but visitors leave zoos without having learned anything meaningful about the animals’ natural behavior, intelligence, or beauty. Zoos keep animals in small spaces or cages, and most signs only mention the species’ name, diet, and natural range(分布区). The animals’ normal behavior is seldom noticed because zoos don’t usually take care of the animals’ natural needs.
The animals are kept together in small spaces, with no privacy and little opportunity for mental and physical exercise. This results in unusual and self-destructive behavior called zoochosis. A worldwide study of zoos found that zoochosis is common among animals kept in small spaces or cages. Another study showed that elephants spend 22 percent of their time making repeated head movements or biting cage bars, and bears spend 30 percent of their time walking back and forth, a sign of unhappiness and pain.
Furthermore, most animals in zoos are not endangered. Captive breeding(圈养繁殖)of endangered big cats, Asian elephants, and other species has not resulted n their being sent back to the wild. Zoos talk a lot about their captive breeding programs because they do not want people to worry about a species dying out. In fact, baby animals also attract a lot of paying customers. Haven’t we seen enough competitions to name baby animals?
Actually, we will save endangered species only if we save their habitats and put an end to the reasons people kill them. Instead of supporting zoos, we should support groups that work to protect animals’ natural habitats.How would the author describe the animals’ life in zoos?
| A．Dangerous. |
| B．Unhappy. |
| C．Natural. |
| D．Easy. |
In the state of zoochosis, animals _________.
| A．remain in cages |
| B．behave strangely |
| C．attack other animals |
| D．enjoy moving around |
What does the author try to argue in the passage?
| A．Zoos are not worth the public support. |
| B．Zoos fail in their attempt to save animals. |
| C．Zoos should treat animals as human beings. |
| D．Zoos use animals as a means of entertainment. |
The author tries to persuade readers to accept his argument mainly by _____.
| A．pointing out the faults in what zoos do |
| B．using evidence he has collected at zoos |
| C．questioning the way animals are protected |
| D．discussing the advantages of natural habitats |