May the first is an important date in the college admission process in the United States. This is the last day for high school seniors to accept or reject offers of admission in the fall. But according to a recent report, there is a great change. Acceptance rates at the top colleges this year were lower than ever. {#blank#}1{#/blank#} 

      These days, college applicants are applying to more colleges because online and common applications make the process easier. {#blank#}2{#/blank#} On the other hand, deciding students for top colleges to accept can be difficult because it takes much time. Students may not like being put on waiting lists．Also, common colleges work more to getthe students they accept to accept them. Some colleges hold visiting days that offer a chance to attend classes and stay overnight. Some universities send gifts. {#blank#}3{#/blank#}

      For many families, the most important thing colleges can do is show them the money, especially this year; the weak economymakes parents nervous. {#blank#}4{#/blank#} The recent problems that spread from thehousing market to credit markets have even affected student's loans．Solately, top schools have to spare lots of money to increase their financial aidfor students.

{#blank#}5{#/blank#}The Education Department expects the number of highschool graduates to start to go down. This will happen as the last of thechildren of the baby boom generation finish high school. Thenumber is not expected to start rising again until 2016.

A．Besides, top colleges are facing changesin the population.

B．What contributes to it?

C．But a mistake can be costly if ithappens.

D．But top colleges ignore them．.

E．They have international students whoknow English.

F．It can mean several acceptances tochoose from.

G．They cannot afford college as planned.

When I was a kid, I used to spend hours listening to Adam Carolla and Dr. Drew Pinsky on their Sunday night radio show Loveline. I listened so often that I began to use one of their well-known phrases—"good times"—in my daily conversations. Scientists have a name for this phenomenon: behavioral mimicry.

    You've probably experienced this before: after spending enough time with another person, you might start to pick up on his or her behavior or speech habits. You might even start to develop your friend's habits without realizing it. There is a large body of literature concerning this sort of phenomenon, and it regularly happens for everything from body gesture to accents to drink patterns (模式). For example, one study found that young adults were more likely to drink their drink directly after their same-sex drinking partners, than for the two individuals to drink at their own paces.

And the effect isn't limited to real-life face-to-face activities. Another study found that the same you-drink-then-I-drink pattern held even when watching a movie! In other words, people were more likely to take a drink of their drinks in a theater after watching the actors on the screen enjoy a drink. At least I don't feel so strange anymore, having picked up on Adam Carolla's "good times".

    New research published today in the journal PLOS ONE indicates that the same sort of behavioral mimicry is responsible for social eating, at least among university-age women of normal weight. That's right: the young women were more likely to adjust their eating according to the eating pace of their same-sex dining companion.

As with most experiments, these results raise a whole new set of questions. However, the finding that behavioral mimicry may at least partly explain eating behavior is important, and has real effects on health. The researchers note that "as long as people don't fully recognize such important influences on intake (eating), it will be difficult to make healthy food choices and keep a healthy diet, especially when people are exposed to the eating behavior of others".

    Exercise may help to safeguard the mind against depression(沮丧) through previously unknown effects on working muscles, according to a new study involving mice.

    Mental health experts have long been aware that even mild, repeated stress can contribute to the development of depression and other mood disorders in animals and people. Scientists have also known that exercise seems to cushion against depression. But precisely how exercise, a physical activity can reduce someone's risk for depression, a mood state, has been mysterious. So for the new study, researchers at the Karolinska Institute in Stockholm studied the brains and behavior of mice in a complicated and novel fashion.

    We can't ask mice if they are feeling cheerful or in low spirits. Instead, researchers have pictured certain behaviors that indicate depression in mice. If animals lose weight, stop seeking out a sugar solution when it's available — because, probably, they no longer experience normal pleasures — or give up trying to escape from the cold-water zone just freeze in place, they are categorized as depressed. And in the new experiment, after five weeks of frequent but low-level stress, such as being lightly shocked, mice displayed exactly those behaviors. They became depressed.

    The scientists could then have tested whether exercise blunts (延缓) the risk of developing depression after stress by having mice run first. But, frankly, from earlier research, they wanted to know how, so they bred pre-exercised mice. A wealth of earlier research by these scientists and others had shown that aerobic exercise, in both mice and people, increases the production within muscles of an enzyme (酶) called PGC-1alpha. The Karolinska scientists suspected（怀疑） that this enzyme somehow creates conditions within the body that protect the brain against depression. Then, the scientists exposed the animals, which without exercising, were in high levels of PGC-1alpha to five weeks of mild stress. The mice responded with slight symptoms of worry. But they did not develop depression. They continued to seek out sugar and fought to get out of the cold-water zone. Their high levels of PGC-1alpha appeared to make them depression-resistant（抵抗的）. Finally, to ensure that these findings are relevant to people, the researchers had a group of adult volunteers complete three weeks of frequent endurance training, consisting of 40 to 50 minutes of moderate cycling or jogging. The scientists conducted muscle biopsies (活体检查) before and after the program and found that by the end of the three weeks, the volunteers' muscle cells contained substantially more PGC-1alpha than at the study's start.

    The finding of these results, in the simplest terms, is that “you reduce the risk of getting depression when you exercise,” said Maria Lindskog, a researcher at the Karolinska Institute.

    In today's working world, the high school diploma program has become the initial footstep in achieving a successful career. A high school diploma is a formal document issued to certify a candidate's successful completion of a prescribed (规定的) secondary school program of studies.

    It takes four years to complete the high school diploma program. The eligibility (合格) requirements for the high school diploma vary from state to state. A high school diploma is the minimum qualification for higher education and government jobs in the United States. The opportunities for a better job are extremely limited for one who has not earned a high school diploma. To be more specific, the high school diploma can qualify one for fruitful careers in science, education, health care, the travel industry, and the legal profession.

    In some states, high school diplomas are differentiated by type such as a general diploma, an academic diploma, or a vocational diploma. A high school diploma is regarded as the minimum admission requirement for post-secondary education programs. When people apply for a green card or a US visa, a high school diploma is a valuable asset for immigrants into the United States.

    There are several ways to achieve a high school diploma. One can get the diploma through traditional classroom study. It is best suited for individuals who enjoy face-to-face interaction with their teachers and classmates. In the United States, opportunities are provided for getting high school diplomas without attending classes at school. One can earn a high school diploma at home through a combination of online and correspondence classes.

    Generally, the high school diploma programs do not have minimum age requirements. In order to get the high school diploma, the students must complete the coursework dictated by their school district. Curriculum (课程) varies from district to district. Before enrollment, a student counseling (咨询) service is recommended to most students.

    Say you're in the supermarket parking lot，holding your baby，bags of goods，and trying to open your car. A stranger walks up and says，" Here，let me hold your baby." Should you let him?

    According to a new New York University study，knowing whether or not to trust someone is so important that we can tell whether a face is trustworthy before we even consciously know it's there. The researchers knew from previous studies that people are fairly similar when it comes to how they judge a face's trustworthiness. They wanted to find out whether that would be true if people only saw a face for a quick moment—an amount of time so short that it would prevent making a conscious judgment.

    To carry out their study，the researchers monitored the amygdala (扁桃腺结构) of 37 volunteers while showing them 300 faces for 33 milliseconds each. Those faces had already been tested with a different set of 10 subjects，who saw them for much longer. In those earlier tests，people agreed about whether to trust each face. In this new study，fascinatingly，different parts of the amygdala lit up when a subject saw an untrustworthy face and a trustworthy one—and it lit up more when the face in question was suspicious (可疑的).

    " Faces that appear likely to cause harm are suddenly tracked by the amygdala，so it could then quickly change other brain processes and make fast responses to people—approach or avoid，" says Jon Freeman，the study's senior author. "Our talents for making instant judgments could either come from birth or be learned from the social environment."

    So should you trust the guy in the parking lot? Your brain already knows.

    My favourite book is The Adventure of Tom Sawyer by Mark Twain. Tom lives with his aunt Polly in a quiet street of St. Petersburg, Missouri. He's a lively and clever young boy, and he finds himself in many exciting adventures. He runs away with his two friends, Huck Finn and Joe, to an island in the middle of the Mississippi River for several days. With Huck he goes looking for treasure, with Becky he gets lost in a cave. And finally, they find a box of gold.

    My favourite scene in the book is when everyone thinks Tom is dead. He decides to go to his own funeral. He hides and watches for a time and then suddenly he appears. Everyone is astonished to see him but they're also pleased to see him alive.

    Tom is the hero of the story, but there are other important characters. Huck is an outsider and everyone is afraid of him. Becky is pretty with fair hair, Joe is Tom's best friend. And Injun Joe is the bad man of the story.

    The theme of the story is about children growing up. It describes how strangers are seen in small towns of America. Finally, it talks about freedom, social rules and how people are punished for bad behaviour.

    Why do I think The Adventure of Tom Sawyer is a great book? Mark Twain wrote the story in 1876, but it's still read and loved by people all over the world today. And although it's only a story, Twain wrote it in the everyday English of the southern states of America in the 19th century, so it sounds very real. Today it's thought to be one of the greatest books in American literature. Go on—read it! I know you'll enjoy it, too.