Artistic Skates Artistic roller skates are made up of a leather boot, very strong sole plate, and a jump bar that adds extra force. The boot sits a few inches above the ankle, providing more support for the foot. Jam Skates Jam skates are the most different roller skates because of their special low-cut design and lack of toe stop. That's right: there is no brake. But the original jam skate design was different, resembling an artistic skate. Jam skating is more about personal expression rather than speed skating. The free-flowing movements of jam skating have been given many names. But regardless of its name, jam skating has always been about expression and passion. Speed Skates A speed skate resembles a shoe. The cut of the boot is lower. Speed skates typically offer lightweight plates to reduce exhaustion for skating long distances. Jam skates have preferred speed skates because they offer a similar design and freedom of movement. The most obvious difference is that a speed skate features a toe stop, unlike a jam skate that uses a toe plug. Rhythm Skates Rhythm skates are similar to jam skates. The difference between them lies in the boot design. In fact, the boot design looks very similar to an artistic skate, essentially providing you with the ankle support benefits of an artistic skate, but the freedom of movement of a jam skate. If you want a skate that allows you to move to the beat, which added ankle support, the rhythm skate is the ideal choice. What can you learn from the passage about jam skates? A) The original jam skate design has hardly changed. B) The original jam skate design was similar to an artistic skate. C) Jam skates have gradually become a type of speed skate. D) Jam skating has many names because it's about expression and passion.
B
(Question)
Many psychologists in the early twentieth century believed that humans use only 10 percent of their brains, and even the great Albert Einstein once wrote that most people use only a small portion of the grey matter between their ears. It's a theory that has often been put forward in television documentaries; magazines, advertisements and books over the past century. But nearly all scientists now agree the 10 percent theory is completely . In fact, they question how this figure was ever arrived at in the first place and what areas of the brain are supposed to be unneeded. The theory supposes that if 90 percent of the brain were removed, a person would Still be able to function normally, while in reality it is known that damage to even a small area of the brain can result in extremely serious physical injury different activities and that many areas of the brain are used at the same time for some complex activities or thought processes. Throughout the course of one day, most .areas of the brain are active at some time, even during sleep. The 10 percent theory suggests that certain areas o' the brain are not used, but scans slow activities throughout the entire brain and not in any separate part. The final argument against the 10 percent theory is the fact that doctors carefully map the brain before removing brain cancers so that they don't affect other essential areas. From an evolutionary point of view, it's highly unlikely butt our comparatively larger brains would have evolved from our ancestors if the extra areas were not needed. In fact, there is absolutely no evidence support the 10 percent theory. What can we infer from the passage? A) People today use more of their brain than in the past. B) Scientific opinion about the topic of brain use is equally divided. C) Our understanding of the brain has changed greatly in the past decades. D) Modern scientists have a complete picture of how the brain works.
(Answer)
C
Ques: Chinese female film stars, like Gong Li and Zhang Ziyi, due to the charm of their films, have set a good image for Chinese women in the world. Compared with Chinese women, the image of Chinese men is not so good in the eyes of Western women, the Shanghai Evening Post reported. In March 2006, Zhang Jiehai, a doctorate holder at the Sociology Institute of the Shanghai Academy of Social Sciences, led a research team to investigate how Western women look at Chinese men. The survey shows that many Western women think Chinese men are mostly known for their care for the family. Chinese men, as the Western women say, are willing to spend money for women. As to their shortcomings, Western women think that Chinese men do not have good manners and that some Chinese men have the habit of spitting everywhere, keeping nails and hair long, picking their noses and ears in public places, and not cleaning their teeth thoroughly. These bad habits make many Western women think that Chinese men are unwilling to take care of their personal image. The survey was carried out in two ways, by questionnaires and interviews. All the respondents agreed that Chinese men show much tender loving care for the family and that many Chinese men do know how to respect women. They open the door for women and carry their handbags for them. For some American women, the bad image of Chinese men in the world is largely because of Hollywood films. In many Hollywood films, Chinese men usually do not have a good image. But this has been changed by Hong Kong film star Chow Yun-Fat. After the Chinese filmCrouching Tiger,Hidden Dragon was shown in cinemas in the United States in 2002, many Westerners began to change their impression of Chinese men. In some American women's eyes, Chinese men's images are bad because of _ . A) Chinese female film stars B) Chinese male film stars C) Hollywood films D) Film stars in Hong Kong
Ans: C
Ques:Let's face it.No one drinks die t soda for the taste.People drink diet soda in the hope that it will help them lose weight or at least keep them from gaining it.Yet it seems to have exactly the opposite effect, according to a new study. Researchers from the University of Texas said those who drank two or more diet sodas a day had waist size increases that were six times greater than those of people who didn't drink diet soda."What we saw was that the more diet sodas a person drank, the more weight they were likely to gain," said Sharon Fowler. The study was based on data from 474 participants in a large, ongoing research project, where the participants were followed for nearly l0 years. While the findings are surprising, they also offer some explanations. Nutrition expert, Melanie Rogers, who works with overweight patients in New York, has found that when patients are switched from regular to diet soda, they don't lose weight at all."We weren't seeing weight loss necessarily, and that was confusing to us," said Rogers. So why would diet soda cause weight gain? No one knows for sure yet, but it could be that people think they can eat more if they drink diet soda, and so over-compensate for the missing calories( ). A related study found some sweeteners raised blood sugar levels in some mice." Data from this and other potential studies suggest that the promotion of diet sodas and artificial sweeteners may be risky," said study researcher Helen P.Hazuda, professor at the University of Texas's school of medicine. Theymay be free of calories, but not of consequences. The new study suggests that drinking diet soda _ . A) helps people to be healthier B) causes people to become heavier C) offers people more calories D) makes people much thinner

Ans:
B