A school in North Carolina has banned skinny jeans and other excessively (过度地) tight-fitting trousers unless worn with a top or dress that must cover the bottom in its entirety. The school board introduced the ban because it says some girls were bullied (欺凌) when wearing tight-fitting trousers. Some parents think the ban is ridiculous and that more time should be spent on monitoring student behavior instead of banning clothing choices.
As a former teacher and a current parent of two girls, I have my opinion on the issue. Non-educators often seem to think “monitoring student behavior” is something as easy as putting on a pair of shoes, and that if teachers “just did their jobs better,” 99-100% of student discipline issues would never happen. The truth is that teachers can’t possibly monitor and control every single moment of a student’s life during the school day.
This is where my view as a parent of girls comes in. Girls of middle-high school age are dealing with their own bodily development, what TV and movies tell them a girl should dress and look like “to be pretty”, and what other girls at their age say they should look like and wear “to be pretty.” This means there isn’t a flawless outfit (套装) that some other girl won’t find “something wrong with” and then make fun of. Assuming we’re talking about girls in public schools, what they wear should be comfortable but also follow common sense. Wearing something that’s too tight probably isn’t that comfortable, but if it is, having some way to cover up certain areas accented (突出) by the tight clothing is a good idea.
Modern fashions might disagree, but psychology tells us tight clothes only cause a distraction.
School isn’t a fashion show. It’s a place of learning with some social interaction, and for those things to happen and also succeed, everyone needs to work together.
1. Why are some parents against the school ban?| A．It is not the proper time to introduce it. | B．It will influence student behavior. |
| C．It is none of the school’s business. | D．It will put girls at a disadvantage. |
| A．It is unfair to students. | B．It’s a difficult job for teachers. |
| C．It can solve most student discipline issues. | D．Teachers shouldn’t devote much time to it. |
| A．tight | B．perfect |
| C．casual | D．comfortable |
| A．Modesty. | B．Fashion. |
| C．Neatness. | D．Prettiness. |
| A．How to monitor students’ behavior? |
| B．How to prevent campus bullying? |
| C．Should parents require their children what to wear? |
| D．Should “skinny jeans” be banned in school? |
相似题推荐
【推荐1】Artificial Intelligence (AI) advice is as influential as human’s, but positive crowd views still overpower.
In a study, researchers found that machines that make recommendations—or AI experts—were as influential as human experts when the AI experts recommended which photo users should add to their online business profiles. However, both AI and human experts failed to budge them if their feedback was negative and went against popular views among other users, said S. Shyam Sundar, a professor of Media Effects.
Because people are increasingly using social media to look for feedback, studies suggest that expert opinions and the bandwagon（从众效应）effect may be important factors in influencing decisions, according to Jinping Wang, a doctoral candidate in mass communication and first author of the study. “Nowadays, we often turn to online platforms for opinions from other people—like our peers and experts—before making a decision,” said Wang. AI experts are often less expensive than human experts and they can also work 24 hours a day, which, Wang suggests, might make them appealing to online business.
The researchers also found that the AI’s group status—in this case, national origin was pointed out—did not seem to affect a person’s acceptance of its recommendation. Among human experts, however, an expert from a similar national origin who offered a negative opinion of a photograph tended to be more influential than a human expert from an unknown country who offered a similar negative rating of a photograph.
While findings that suggest group status may not affect whether a person values the view of AI experts sound like good news, Sundar suggests that the same cultural prejudice might still be at work in AI experts for they could be hidden in the programming and training data.
“It can be both good—and bad—because it all depends on what you feed the AI,” said Sundar. “While it is good to believe in AI’s ability to transcend（超越）cultural prejudice, we have to keep in mind that if you train the AI on pictures from one culture, they could give misleading recommendations on pictures meant for use in other cultural contexts.”
1. What do the underlined words “budge them” in Paragraph 2 mean?| A．Change users’ ideas. | B．Satisfy users’ needs. |
| C．Raise users’ spirits. | D．Fire users’ imagination. |
| A．Because AI experts are more knowledgeable. |
| B．Because AI experts are less influenced by feelings. |
| C．Because AI experts are always available and cost less. |
| D．Because AI experts are so new as to be more attractive. |
| A．An expert who has great achievements in arts. |
| B．An expert from countries with similar cultures. |
| C．An expert with better personality and attitude. |
| D．A foreign expert who is very popular worldwide. |
| A．People should have a mind of their own. |
| B．People should be able to tell good from bad. |
| C．People should be trained how to use AI properly. |
| D．People should know AI’s hidden cultural prejudice. |
【推荐2】“Sushi tastes amazing. A great steak is just amazing.” Those are not the words you expect to hear from a leader of the vegetarian movement. But that’s how Graham Hill, founder of the sustainability website Tree Hugger, feels about the fleshier components of his diet. He is a self-described “weekday vegetarian,” a compromise that came about after years of trying—and failing—to adhere to (坚持) a strictly vegetarian diet.
For the past year, Hill has preached (宣传，鼓吹) the cause of partial vegetarianism to help fight global warming. According to the U. N., the livestock industry produces 18%of the world’s greenhouse gases. Part-time vegetarians choose what to eat and when. The popular Meatless Monday movement, which began in 2003, has been backed by many celebrities, including Paul McCartney, who has taken the lead in his own Meat Free Monday campaign. Last year the Belgian city of Ghent picked Thursday as its Veggie day, calling for meat-free options to be served that day in schools and public institutions.
The drive to avoid eating meat on certain days is not new. Catholics have long been urged to restrain themselves on Fridays. But environmentalists have only recently caught on. “The surge is due to a sense of a plateau (达到平衡) . You’ve already reached out to the base of strict vegetarians, and it’s hard to get beyond those numbers,” says Peter Singer, a Princeton philosophy professor. “People should go further, but it’s progressed in the right direction.”
Although the American Dietetic (ADA) Association doesn’t track the number of part-times, the group says roughly 2.5% of Americans are strictly vegetarian, a diet that poses no health risks as long as practitioners get enough protein from beans and other nonmeat sources. “A partial-vegetarian plan is a little more user-friendly,” says Dawn Jackson Blatner, a flexitarian (弹性素食者(偶尔吃荤)) and ADA spokesperson.
The goal for many activists is simply to get more people to eat less meat. “Absolute purists should be living in a cave,” says Ingrid Newkirk, president of People for the Ethical Treatment of Animals (PETA). “Anybody who witnesses the suffering of animals and has a glimmer of hope of reducing that suffering can’t take the position that it’s all or nothing. We have to be realistic. Screw the principle.”
1. The first quote of the passage intends to show that ________.| A．sushi and steak are both of Hill’s favorite food | B．the vegetarian movements are popular |
| C．Hill isn’t a qualified leader of the vegetarian movement | D．it’s difficult to be a strict vegetarian |
| A．He doesn’t eat meat on weekends. | B．He doesn’t want to be a strict vegetarian. |
| C．He is an environmentalist. | D．He failed to lose weight. |
| A．Part-time vegetarians account for nearly 2.5% of Americans. |
| B．A diet with all vegetables may have no bad effect on health. |
| C．Partial vegetarian is better than strict vegetarian in terms of nutrition. |
| D．Many celebrities are part-time vegetarians. |
| A．people should adhere to a strictly vegetarian diet. |
| B．everybody should act to fight global warming |
| C．partial vegetarian plan works more sensibly |
| D．people shouldn’t stop eating meat for it’s bad for health |
【推荐3】Algorithms (计算程序) are able to do a huge number of tasks, and the number of tasks that they are able to do is expanding practically every day. According to a new study, despite increasing concern over the effect of algorithms in daily life, more and more people nowadays are willing to trust a computer program, especially if a task becomes too challenging. From choosing the next song on your playlist to choosing the right size of pants, people are relying more on the advice of algorithms to help make everyday decisions.
During the study, researchers asked volunteers to count the number of people of a crowd in a photograph and supplied suggestions that were offered by a group of other people and suggestions offered by an algorithm. As the number of people in the photograph expanded, counting became more difficult and people were more likely to follow the suggestions offered by an algorithm rather than count themselves or follow the “wisdom of the crowd”.
One of the common problems with AI is when it is used for awarding credit. While that is a subjective decision, there are lots of numbers there, like income and credit scores. Therefore, people feel like this is a good job for an algorithm. But we know that dependence leads to unfair and incomplete practices in many cases because of social factors that aren’t considered.
Facial recognition and hiring algorithms have come under inspection in recent years because their use has shown cultural prejudice in the way they were built, which can cause inaccuracies when matching faces to identities or screening for qualified job candidates. The prejudice may not be present in a simple task like counting, but their presence in other trusted algorithms is a reason why it is important to understand how people rely on algorithms when making decisions.
“The eventual goal is to look at groups of humans and computers making decisions and find how we can get them to trust each other and how that changes their behaviors,” one of the researchers said. “Because there is very little research in that setting, we’re starting with the fundamentals.”
1. What can we learn about the present people from paragraph 1?| A．They become more dependent on algorithms. |
| B．They show little concern about algorithms in life. |
| C．They are addicted to numbers of challenging tasks online. |
| D．They never rely on computers to make everyday decisions. |
| A．They cannot be used to award credit. |
| B．They can lead to one-sided decisions. |
| C．They can give away candidates’ identities. |
| D．They cannot be applied to difficult calculations. |
| A．It leads to cultural differences. |
| B．It may produce some false results. |
| C．It takes lots of money and manpower. |
| D．It rules out most qualified job candidates. |
| A．It is really necessary to stay away from AI. |
| B．It is very easy to make choices with the help of AI. |
| C．People need to adapt to the development of computers. |
| D．People tend to trust computer programs more than themselves. |
【推荐1】Can people in developing countries benefit from free trade？I quite think so. The most common advantage of free trade is fewer or no barriers between countries. This allows a freer flow of labor and goods between member countries. As free trade agreements become more common around the world, the positive influence on developing countries has been considered as one of the greatest successes of them. There are several advantages for developing countries that take part in free trade.
As developed countries are able to move their operations into developing countries, new job opportunities open up for local workers. Increased levels of employment lead to a higher standard of living and more consumer purchasing. This finally does good to the country's economy and may help to develop locally-owned businesses. As locally-owned businesses develop, more local people can find jobs there.
Child labor exists in developing countries for many reasons, but one of the main reasons is lack of technology. Free trade allows companies to spend more money on equipment and pay higher wages to adult workers. With higher family incomes, children are able to attend school rather than work.
Not only does free trade allow foreign-owned companies to establish themselves in developing countries, it also allows native companies to sell products to foreign markets. This is particularly true for small businesses in developing countries. These companies no longer have to worry about barriers to market entry and can sell their products freely.
An increase in employment levels and incomes in developing countries can lead to better medical care there. The final result is an increase in the average lifespan（寿命）and a drop in infant（婴儿）deaths.
As is shown above, we can say that free trade really benefits developing countries.
1. What does the underlined word "them" in Paragraph 1 refer to？| A．Positive advantages. |
| B．Developing countries. |
| C．Free trade agreements. |
| D．Barriers between countries. |
| A．more higher-skilled jobs |
| B．higher employment rates |
| C．higher market competitiveness |
| D．more foreign-owned companies |
| A．They don't have to work. |
| B．They can receive higher wages. |
| C．They don't have to attend school. |
| D．They can learn more about new technologies. |
| A．Small businesses can get more skilled employees. |
| B．Free trade provides small businesses with new markets. |
| C．Foreign-owned companies can sell their products to developing countries. |
| D．Free trade can lead to greater competition between foreign and local companies. |
【推荐2】Teens and younger children are reading a lot less for fun, according to a Common Sense Media report published on Monday.
While the decrease over the past decade is steep(急剧的) for teen readers, some data in the report shows that reading remains a big part of many children’s lives, and indicates how parents might help encourage more reading.
According to the report’s key findings, “the proportion (比例) who say they ‘hardly ever’ read for fun has gone from 8 percent of 13-year-olds and 9 percent of 17-year-olds in 1984 to 22 percent and 27 percent respectively today.”
The report data shows that pleasure reading levels for younger children, ages 2-8, remain largely the same. But the amount of time spent in reading each session has decreased, from closer to an hour or more to closer to a half hour per session.
When it comes to technology and reading, the report does little to suggest parents looking for data about the effect of e-readers and tablets on reading. It does point out that many parents still limit electronic reading, mainly due to concerns about increased screen(屏幕) time.
The most hopeful data shared in the report shows clear evidence of parents serving as examples and important guides for their kids when it comes to reading. Data shows that kids and teens who do read frequently, compared to infrequent readers, have more books in the home, more books bought for them, parents who read more often, and parents who set aside time for them to read.
As the end of school approaches, and school vacation reading lists loom (逼近) ahead, parents might take this chance to step in and make their own summer reading list and plan a family trip to the library or bookstore.
1. What is the Common Sense Media report probably about?| A．Children’s reading habits. | B．contents of children’s books. |
| C．Children’s after-class activities. | D．Parent-child relationships. |
| A．In Paragraph 2. | B．In Paragraph 3. |
| C．In Paragraph 4. | D．In Paragraph 5. |
| A．E-books are of poor quality. | B．It could be a waste of time. |
| C．It may harm children’s health. | D．E-readers are expensive. |
| A．Act as role models for them. |
| B．Ask them to write book reports. |
| C．Set up reading groups for them. |
| D．Talk with their reading class teachers. |
| A．a book review | B．a magazine | C．a science fiction | D．a student’s diary |
【推荐3】Americans are proud of their variety and individuality (个性), yet they love and respect few things more than a uniform, whether it is the uniform of a lift operator or the uniform of a five-star general(将军).
Among the arguments for uniforms, one of the first is that in the eyes of most people they look more professional than civilian (百姓的) clothes.People expect higher quality from a man who wears a uniform.
Among the arguments against uniforms is their lack of variety and the loss of individuality experienced by people who must wear them.Though there are many types of uniforms, the wearer of any particular type is generally stuck with it, without change, until retirement.
| A．Americans think highly of uniforms . |
| B．Why are uniforms so popular in the United States? |
| C．When people wear the same uniforms, they are likely to think, speak, and act similarly on the job at least. |
| D．Uniforms also have many practical good points |
| E．Some practical problems with uniforms arise. |
| F．The television repairman who wears a uniform is likely to inspire more trust than one who appears in civilian clothes. |
| G．People's identity can be recognized more easily by their uniforms |
【推荐1】On South Goulburn Island, a small and forested island off Australia’s northern coast, a settlement called Warruwi Community consists of about 500 people who speak among themselves around 9 different languages. This is one of the last places in Australia--and probably the world--where so many indigenous(本地的) languages exist together. There's the Maung language, but also one called Bininj Kunwok and another called Yolnu Matha, and Burarra, Ndjebbana, Gunbarlang, Iwaidja, Torres Strait Creole, and English.
None of these languages, except English, are spoken by more than a few thousand people. Several, such as Ndjebbana and Maung, are spoken by groups numbering in the hundreds. For all these individuals to understand one another, one might except South Goulburn to be an island of polyglots, or a place where residents have known well about others' languages, like a sort of “linguistic stone soup”. Rather, they just talk to one another in their own language or languages, which they can do because everyone else understands some or all of the languages but doesn't speak them.
People at Warruwi Community avoid simply switching to a shared language because there are social and personal costs of doing so. Some families insist that their children speak only their language, usually their father's. Languages are associated with particular pieces of land or territory on the island, and races claim ownership of that land, so languages are also considered to be owned by races. One can only speak the languages that one has the right to speak---and breaking this restriction can be seen as a sign of hostility.
This arrangement, which linguists call “receptive multilingualism (接受式多语制)”, shows up all around the world. In some places, it’s accidental. Many English-speaking Anglos who live in the U.S. border states, for instance, can read and understand quite a bit of Spanish from being exposed to it. And countless immigrant children learn to speak the language of their host country while keeping the ability to understand their parents' languages. In other places, receptive multilingualism is a method for temporary situations. But at Warruwi Community, it plays a special role.
1. What can we learn from Paragraph 1?| A．Everyone at Warruwi Community can speak 9 different languages. |
| B．South Goulburn is the last place in the world where 9 different languages exist together. |
| C．English is one of the 9 different languages spoken at Warruwi Community. |
| D．9 different languages are spoken on the northern coast of Australia. |
| A．People knowing many languages. |
| B．Different languages mixed together. |
| C．Local people speaking the same language. |
| D．Individuals speaking different languages |
| A．They can only speak their father's language. |
| B．They choose a land and learn its local language. |
| C．They speak the language they have the right to speak. |
| D．They choose to speak a shared language. |
| A．Receptive multilingualism as a method for temporary situations. |
| B．The functions of receptive multilingualism at Warruwi Community. |
| C．Receptive multilingualism used around the world. |
| D．Children's adoption of receptive multilingualism. |
【推荐2】Angelfish, often found in the warm seas and coral reefs, are among the most brightly colored fish of the ocean. Brilliant colors and stripes form amazing patterns on their body. These patterns actually help the fish to hide from danger among roots and plants. At night, when these fish become inactive, their colors may become pale. Often, the young ones are differently colored than the adults. Some scientists believe that the color difference between the young and the old indicates their different social positions.
Another interesting fact about angelfish is that they have an occupation in the fish world. Most of them act as cleaners for other fish and pick dead tissue from their bodies. This is not their food, though. Their diet consists mainly of sponge and algae.
One particular kind of angelfish, the blackspot angelfish, has a special capability that allows it to change gender from female to male. However, the change is not made at random; it happens for a specific reason. Angelfish live in groups, and each group has one male fish, which is blue in color, and four female fish, which are yellow. The male angelfish is the strongest and largest member of the group. He is the one who protects and looks after the females. When the male dies, the group needs a new "security guard." This is when the largest female in the group begins to change in appearance. She begins to grow larger in size, and after a week, she starts changing color, from yellow to blue. Slowly, her behavior toward the other fish also changes. She begins behaving like a male. Two weeks later, black stripes appear on her body, indicating the gender change is complete. She is now completely male!
1. What is the job of an angelfish in the sea?| A．Being a cleaner for other fish. | B．Being a bodyguard for other fish. |
| C．Being a gardener for roots and plants. | D．Being a caretaker for sponge and algae. |
| A．Female angelfish are blue in color. |
| B．The colors of the fish become less bright at night. |
| C．Male angelfish do not have black stripes on them. |
| D．The adult fish and the young ones have the same colors |
| A．Dangers to the group. | B．Changes in the fish' diet. |
| C．The birth of young angelfish. | D．The death of the male fish in a group. |
| A．Size→behavior→color→ stripes. | B．Color→size→behavior→stripes. |
| C．Size→color→behavior→ stripes. | D．Color→behavior→size→stripes. |
【推荐3】ADULT GROUP TOURS
MIM (Musical Instrument Museum) invites groups to experience the world through music. Reserve group tours in advance to check in as a group upon arrival and expedite(加快）admissions(入场）. With easier check-in，groups have more time to explore the galleries. GUIDED TOUR
■ Length of Tour: One hour
■ Group Size: 7 guests per group; 3 groups maximum per tour (21 guests maximum at one time). Since space can be tight in those areas, the number of guests are limited at any time. “VIP” Tours are conducted in groups of seven people.
GENERAL ADMISSION
General: $20 per adult
■ $15 for teens (ages 13-19)
■ $10 for children (ages 4 - 12)
■ Free for children 3 and under TOUR FEES
A $25 fee is charged for each group that registers(登记）for this tour，plus general museum admission for each guest on the tour.
■ Group of 1-7 guests: $25 plus general admission for each guest
■ Groups of 8 to 14 guests: $50 plus general admission for each guest
■ Groups of 15 to 21 guests: $75 plus general museum admission for each guest
A $40 nonrefundable(不可退的）deposit (押金)will hold the reservation(预订）and is applied to the final payment.
TOUR SCHEDULE
Tours are available year-round, seven days a week.
Our team is delighted to adjust the time of the tour to accommodate your needs. We would be glad to help you make your tour reservation.
BOOK YOUR ADULT GROUP TOUR TODAY
To schedule a tour for your group, please fill out the Adult Group Tour Request Form at least two weeks before your desired tour date. MIM will then contact you and e-mail your reservation confirmation. If you have questions, contact MIM9s Group Sales Specialist at 480.478.6031 oradulttours@MIM.org.
1. Why is the number of visitors strictly controlled each time?| A．Because of MIM”s benefits. | B．Because visitors are rare. |
| C．Because of the visitors’ noises. | D．Because of the limited space. |
| A．$165. | B．$25. | C．$140. | D．$40. |
| A．Tours are not available during weekends. |
| B．All the children are free to enter the MIM. |
| C．You need to fill the form before the tour. |
| D．You only contact the MIM by telephone. |
【推荐1】We know that every person has its own words or expressions to express his ideas and feelings. Some of these words and expressions are commonly used for many years. Others are popular for just a short time. One such American expression is “Where's the beef?” It is used when something is not as good as it is said to be. In the early 1980s “Where's the beef?” was one of the most popular expressions in the United States. It seemed as if everyone using it at the time.
Beef, of course, is the meat from a cow, and food is more popular in America than a hamburger made from beef. In the 1960s a businessman named Ray began building small restaurants that sold hamburgers at a low price. Ray called this “McDonald's”. Ray became one of the richest businessmen at last in America.
Other business people watched his success. Some of them opened their own hamburger restaurants. One company called "Wendy's" said its hamburgers were bigger than those sold by McDonald's or anyone else. The Wendy's Company began to use the expression “Where's the beef?” to make people know that Wendy's hamburgers were the biggest. The Wendy's television advertisement showed three old women eating hamburgers. The bread that covered the meat was very big, but inside there was only a bit of meat. One of the women said she would not eat a hamburger with such a little piece of beef. “Where's the beef?” she shouted in a funny way. The advertisement for Wendy's hamburger restaurants was success. As we said, it seemed everyone began using the expression "Where's the beef?".
1. ______ started McDonald's restaurant．| A．Ray | B．McDonald | C．Wendy | D．Three old women |
| A．they could sell hamburgers at a low price | B．hamburgers were easy to make |
| C．beef was very popular in America | D．they could make a lot of money |
| A．with many old women eating hamburgers | B．by a television advertisement |
| C．while selling bread with a bit of meat in it | D．at the McDonald's restaurant |
| A．The beef in hamburgers is not as much as it is said to be |
| B．The hamburgers are not as good as they are said to be |
| C．It is used when something is not as good as it is said to be |
| D．Wendy's is the biggest |
We’re looking for producers to join us on the sound of London Kiss 100 FM．You’ll work on the station’s music programs．Music production experience in radio is necessary，along with rich knowledge of modern dance music．Please apply in writing to Producer Vacancies，Kiss 100．
Father Christmas
We’re looking for a very special person，preferably over 40，to fill our Father Christmas suit．
Working days：Every Saturday from November 24 to December 15 and every day from December 17 to December 24 except Sundays，10∶ 30 －16∶ 00．
Excellent pay．
Please contact the Enterprise Shopping Centre，Station Parade，Eastbourne．
Accountants Assistant
When you join the team in our Revenue Administration Unit，you will be providing assistance within all parts of the Revenue Division，dealing with post and other general duties．If you are educated to GCSE grade C level we would like to talk to you．This position is equally suitable for a school leaver or for somebody who has office experience．
Wealden District Council
Software Trainer
If you are aged 24—45 and have experience in teaching and training，you could be the person we are looking for．You should be good at the computer and have some experience in program writing．You will be allowed to make your own decisions，and to design courses as well as present them．Pay upwards of ￡15，000 for the right person．Please apply by sending your CV （简历）to Mrs．R．Oglivie，Palmlace Limited．
1. Who should you get in touch with if you hope to work in a radio station?
| A．Wealden District Council． | B．Producer Vacancies，Kiss 100． |
| C．The Enterprise Shopping Centre． | D．Mrs Oglivie，Palmlace Limited． |
| A．is aged between 24 and 40 | B．may do some training work |
| C．should deal with general duties | D．can work for about a month |
| A．Accountants Assistant． | B．Father Christmas． |
| C．Producer，London Kiss． | D．Software Trainer． |
| A．One with GCSE grade C level． |
| B．One having good computer knowledge. |
| C．One with some office experience． |
| D．One trained in producing music programs． |
【推荐3】Some colors people see late at night could cause signs of clinical depression. That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression. Doctors use the word “clinical depression” to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
In the new study, American investigators designed an experiment that exposed hamsters（仓鼠）to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and are active at night. The animals were separated into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light. After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water.
Randy Nelson heads the Department of Neuroscience at Ohio State University. He says animals that slept in blue and white light appeared to be the most depressed. “What we saw is that these animals didn’t show any sleep uneasiness at all but they did mess up biological clock genes and they did show depressive sign while if they were in the dim（微弱）red light, they did not.”
Randy Nelson notes that photosensitive（感光）cells in the eyes have little to do with eyesight. He says these cells send signals to the area of the brain that controls what has been called the natural sleep-wake cycle.
He says there’s a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness.
1. Researchers use hamsters in the experiment because ________.| A．they are similar to humans in dealing with colors |
| B．they are easy to observe and study |
| C．they are active at night and sleep during the day |
| D．they are sensitive to colors like human beings |
| A．They don’t sleep well. | B．They drink less sugary water. |
| C．Their eyesight becomes worse. | D．Their energy level becomes low. |
| A．Blue light | B．Red light |
| C．Dim light | D．Darkness |
| A．Not being exposed to dim red light when using computers. |
| B．Living or working in low levels of light overnight. |
| C．Equipping their computer screens to put it more in the reddish light. |
| D．Going to see doctors of clinical depression regularly for help. |
