New research suggests that speaking more than one language may delay different kinds of dementia(痴呆), that is the loss of mental ability. In fact, researchers say, speaking two languages appears to be more important than the level of education in defending against dementias.
A study in India examined the effect of knowing more than one language in delaying the first signs of several dementias. Researchers studied nearly 650 people whose average age was 66. 240 of those studied suffered from Alzheimer's, the most common form of mental decline(下降). 391 of the subjects spoke two or more languages. Researchers found the dementias began about four-and-a-half years later in those who spoke two languages compared to those who spoke only one language. The level of education had no effect on the age at the first sign of dementia.
Thomas Bak, from the Center of Cognitive Aging at the University of Edinburgh in Scotland, who helped to organize the study, suggests that individuals who speak more than one language train their brains by moving back and forth between different words and expressions. He also believes this effort improves what scientists called executive(执行的) functioning, which often weakens in people with dementias. He states that researchers found there was no extra gain in speaking more than two languages.
Mr Bak says it does not appear important whether you learn another language at a young age or later in life. It's not something that “you missed the boat when you do not do it as a baby.” It is something that is still quite useful and powerful when you do it as an adult. The finding of the study is that________.
| A．learning more than one language can cure dementias |
| B．speaking two languages may delay kinds of dementias |
| C．the level of education matters in defending against dementias |
| D．people who suffer from dementias will lose mental ability |
The underlined word “subjects” refers to________.
| A．people who were studied in the study |
| B．notices that were put on about the study |
| C．questions that were asked in the study |
| D．methods that were used in the study |
According to Mr Bak, ________.
| A．the more languages one speaks, the less chance of getting dementias |
| B．people’s executive functioning often strengthens with age |
| C．when you learn one more language makes no difference |
| D．it is much easier to learn one more language at a young age |
This passage may probably be seen in________.
| A．a research plan | B．a health magazine |
| C．a book review | D．a business magazine |
Television has changed the lifestyle of people in every industrialized country in the world. In the United States, where sociologists have studied the effects, some interesting observations have been made.
Television, although not essential, has become an important part of most people’s lives. It alters people’s ways of seeing the world; in many ways, it supports and sustains (维持) modern life.
Television has become a baby-sitter, an introducer of conversations, the major transmitter of culture, and a keeper of tradition. Yet when what can be seen on TV in one day is critically analyzed, it becomes evident that television is not a teacher but a sustainer; the poor quality of programming does not elevate (提高) people into greater understanding, but rather maintains and encourages the life as it exists.
The primary reason for the lack of quality in American television is related to both the history of TV programming development and the economics of TV. Television in America began with the radio. Radio companies and their sponsors first experimented with television. Therefore, the close relationship which the advertisers had with radio programs became the system for American TV. Sponsors not only paid money for time within programs, but many actually produced the programs. Thus, in American society, television is primarily concerned with reflecting and attracting society rather than experimenting with new ideas. Advertisers want to attract the largest viewing audience possible. To do so requires that the programs be entertaining rather than educational, attractive rather than challenging.
Television in America today remains, to a large extent, with the same organization and standards as it had thirty years ago. The hope for further development and true achievement toward improving society will require a change in the entire system.
According to the author, American television is poor in quality because _________.
| A．it is controlled by radio companies |
| B．the programs have to be developed partly for economic reasons |
| C．advertisers are interested in experimenting with new ideas |
| D．it is still at an early stage of development, compared with the radio |
In the author’s view, American TV should _________.
| A．be entertaining and attractive |
| B．reflect society and attract society |
| C．attract as many viewers as possible |
| D．change with the development of society |
Based on the passage, which of the following statements is TRUE?
| A．TV has become a must in the American’s life. |
| B．One can expect to improve his understanding significantly from watching TV. |
| C．American TV is important to most people as it affects their life in many ways. |
| D．American TV nowadays has some different standards from the past. |
The author’s attitude towards American television is _________.
| A．negative | B．positive |
| C．indifferent | D．sympathetic |
Merchant and passenger ships are generally required to have a life preserver for every person aboard and in many cases, a certain percentage of smaller sizes for children. According to United States requirements, life preservers must be simple in design, reversible( 可翻转的), capable of being quickly adjusted to fit the uninitiated individual, and must be so designed as to support the wearer in the water in an upright or slightly backward position.
Sufficient buoyancy(浮力) to support the wearer should be retained by the life preserver after 48 hours in the water, and it should be reliable even after long period of storage. Thus it should be made of materials resistant to sunlight, gasoline, and oils, and it should be not easily set on fire. The position in which the life preserver will support a person who jumps or falls into the water is the most important thing, as is its tendency to turn the wearer in the water from a face-down position to an upright or slightly backward position, with his face clear of the water, even when the wearer is exhausted or unconscious.
The method of adjustment to the body should be simple, and self-evident to uninitiated individuals even in the dark under the confused conditions, which follow a disaster. Thus, the life preserver should be reversible so that it is nearly impossible to set it on wrong. Catches, straps, and ties should be kept to a minimum. In addition, the life preserver must be adjustable to the wide variety of shapes and sizes of wearers, since this greatly affects the position of floating and the self-righting qualities. A suitable life preserver should also be comfortable to wear at all times, in and out of the water, not so heavy as to encourage to take it off on shipboard while the ship is in danger, nor so burdensome that it hinders a person in the water while trying to swim.
The passage is mainly about_____________.
| A．the uses of life preservers |
| B．the design of life preservers |
| C．the materials for life preservers |
| D．the buoyancy of life preservers |
According to the passage, a life preserver should be first of all, _________.
| A．adjustable | B．comfortable |
| C．self-evident | D．self-righting |
United States Coast Guard does NOT require the life preserver to be made ______.
| A．with as few strings as possible |
| B．capable of being worn on both sides |
| C．according to each wearer's size |
| D．comfortable and light to wear |
By “the uninitiated individual” (Para. 1, Line. 4) the author refers to the person ______.
| A．who has not been instructed how to use a life preserver |
| B．who has a little experience in using a life preserver |
| C．who uses a life preserver without permission |
| D．who becomes nervous before a disaster |
On a clear night, the sky is a wonderful thing. Is there life out there somewhere? Is there another place like Earth where life might exist? If so, where is it? And how far away is it?
Recently, the Kepler spacecraft found “22b”, a planet about six hundred light years away. It is the first planet in a “habitable zone” outside the solar system. That means the planet orbits(环绕) a star like our sun, but it is not too close to it, nor too far away. Because of this position, Kepler-22b might have water, one of the main things needed for life. The newly-discovered planet is about two and a half times larger than the Earth. It is closer to its star than we are to the Sun, but 22b’s sun is smaller than ours, and doesnt produce as much heat. Scientific instruments show the new planet could be made of gases, rocks or some kinds of liquids.
The Kepler spacecraft was named in honor of Johannes Kepler, the seventeenth century German astronomer. It was designed to examine a small part of the Milky Way galaxy(星系)and search for places like the Earth. It was made to inspect over 150,000 stars and measure how bright they are. It looks to see if a star’s brightness gets less over a short time.
If a planet passes between Kepler and the star, it blocks out part of the light. That is what suggested to scientists that there is at least one planet orbiting the star. The instruments on Kepler show the new planet as a small, black dot moving across its sun. An important part of the Kepler experiment is on the Earth. After the spacecraft gathers information, scientists use the telescopes on the ground.
Scientists have found over 2,300 new planets since Kepler was launched. Most are much larger, but it is the new planet’s distance from its star that is important. For life to possibly exist there, the planet’s temperature must not be too hot or too cold. What can we learn about Kepler-22b?
| A．Water must have existed on it. |
| B．It takes humans about 600 years to get there. |
| C．It is made of gases, rocks and plenty of liquids. |
| D．It is the first planet in outer space where life may survive |
The Kepler spacecraft was sent into space to
| A．show honor to Johannes Kepler |
| B．observe the changes of a star’s brightness |
| C．look for Earth-like planets in the Milky Way galaxy |
| D．measure the brightest star among 150.000 stars |
In Paragraph 4 the author mainly tells us
| A．how the Kepler system works |
| B．if the Kepler system sees a new planet |
| C．how the Kepler system shows a new planet |
| D．why an important part of the Kepler system remains on the Earth |
What can we infer from the passage?
| A．Life may exist on the new planet in another form. |
| B．It is colder on the new planet because its sun is smaller. |
| C．Life can’t exist on planets which are much larger than the Earth. |
| D．The new planet’s distance from its star decides on the possibility of life existence. |
Every year seals would crowd ashore in Farne Island and give birth to their pups. Between early October and early December, 1,500 seal pups will be born. Almost half of them will not make it past the first three weeks of life.
“The pups have to stay out of the water for the first three weeks, when they have their white coat, which is not very waterproof,” explains the warden (监察员)，who spends nine months on the Island.
“But when you’re born in November on a rock in the North Sea, it’s a tough start to life,” he said. Storms often wash young pups into the water. And occasionally, young, inexperienced mothers abandon their pups and head out to sea.
“We lost 41% last year,” said David Steel, the National Trust’s head warden on the Farne Islands. “Mother Nature certainly keeps them in check.”
Despite the early challenges for every newborn seal, the population is healthily and slowly and steadily growing. There are almost 4,000 seals on a set of islands, which is named a Special Area of Conservation(SAC), meaning it is protected under EU regulations. This successful human safeguarding of the seals’ habitat is huge turnaround(转机).
Just a few decades ago, the seal population was deliberately decimated. The animals used to be thought of as a threat to local fish stocks. During the late 1960s and 1970s, thousands of seals were shot in a cull(剔除)that aimed to protect the local fishing industry. According to the National Trust, between 1962 and 1983 approximately 2,000 adult females and 3,000 pups were shot.
But, as the fishing industry collapsed, it was gradually replaced by tourism. Today, several companies use fishing boats to take groups of people to visit the islands and admire the scenery, seabirds and, of course, the seals that make their homes in this bleakly beautiful place. In the first three weeks after they were born, almost half of the seal pups _______.
| A．would be abandoned by their mothers |
| B．would be protected by the wardens |
| C．couldn’t live independently |
| D．would die mostly in the sea water. |
According to David Steel, death of so many pups________.
| A．is a normal and natural phenomenon |
| B．is mainly caused by farmers’ killing |
| C．can be prevented efficiently by man |
| D．will be controlled by Mother Nature |
The underlined word “decimate” in Paragraph 6 is closest in meaning to ____.
| A．increase | B．kill | C．reduce | D．control |
What’s the best title for the passage?
| A．The Beautiful Farne Island |
| B．A Tough Beginning |
| C．How to Protect Grey Seals |
| D．Tourism or Fishing Industry |
Our world is full of tourist traps and crowds of people. What if you could get out ahead of the crowded people and visit a place before it started swarming with crowds of people?
José lgnacio, Uruguay
Only about 300 people actually live here, but in winter, Latin famous stars like Shakira gather here. A new luxury hotel named Bahia Vik is in the process of opening, and JoséIgnacio is preparing to host an international art festival. You can enjoy art atmosphere here and eat steaks at La Huella restaurant.
Koh Rong, Cambodia
Visiting this Cambodian island is like stepping into a screen saver. With only a few houses and some fishing villages, many people say it’s like Thailand 20 years ago when tourists landed the untouched beaches. Ferries started regularly shuttling tourists to Koh Rong only a few years ago, but things are still pretty quiet until someone plans to build an airport.
Riga, Latvia
Latvia is Europe’s best kept secret, but all has changed now since Riga was named the European Capital of Culture in 2014. The city also ranked as Europe’s cheapest destination for backpackers this year, with an average cost of just $33 per day for food, lodging, transportation and entertainment. Hurry up and peruse (研读) Old Riga and St. Peter’s tower, and get fancy at the Latvian National Opera.
Puglia, Italy
With food travel on the rise, Puglia is becoming a household name. Under the Italian cultural influences, the Mediterranean diet takes one of its purest and most delicious forms: food is locally purchased and restaurants are quaint (精致的) and are of high quality, which have good reputations.The first paragraph is used to.
| A．complain about tourist traps |
| B．introduce the topic of the text |
| C．warn readers to avoid crowded people |
| D．show how tired travelers feel after holidays |
When visiting Koh Rong, you can.
| A．take a boat to get there |
| B．eat steaks at La Huella restaurant |
| C．find there is a large beautiful airport |
| D．find it’s as developed as Thailand |
Which of the following will cost travelers least in Europe?
| A．José Ignacio, Uruguay. |
| B．Koh Rong, Cambodia. |
| C．Riga, Latvia. |
| D．Puglia, Italy. |
What can we know about Puglia?
| A．Its diet enjoys wide popularity. |
| B．Its food price is rising rapidly. |
| C．It has the most delicious food in Italy. |
| D．It has a luxury hotel named Bahia Vik. |