“Drink your milk. It’s good for you!” You’ve probably heard that many times, and it’s true. Milk contains calcium, which is a necessary nutrient for keeping bones and teeth healthy and strong. The U.S. government even requires milk as part of the National School Lunch Program, saying that students should drink one cup of fat-free or low-fat milk at each meal.
Last Thursday, however, a group of doctors asked the government to remove milk from the lunch program. The Physicians Committee for Responsible Medicine (PCRM) says, “Milk is high in sugar, high in fat and high in animal protein, all of which have negative effects on health.” “One of the only reasons people talk about dairy, or promote it, is that it is going to help build strong bones.” says Dr. Neal Barnard, president of the PCRM. There are better and healthier ways to get calcium such as eating beans, broccoli, cereals and tofu. Orange juice and soymilk that have calcium added to them also supply the nutrient.
Of course, calcium is important for healthy bones and teeth, but your genes, how much vitamin D you take in and getting an hour’s worth of exercise every day all play a part.
Some nutritionists disagree with the idea that milk isn’t important. Keri Gans, a dietitian, says, “I think it’s irresponsible to take away this beverage that children enjoy, especially among those who are unable to meet their nutrient needs for the day, and remove it from the lunch line.”
The U.S. government is studying the request of the PCRM, but a decision may be a long way off. Meanwhile, Marion Nestle, a professor at New York University, puts it best: “Milk has nutrients. Other foods have the same nutrients. It’s just a food. Like other foods, too much might be a problem.”What is mainly talked about in the first paragraph?
| A．The concern about students’ health. | B．Traditional attitudes towards milk. |
| C．Ways to keep bones and teeth healthy. | D．The practice of the U.S. government. |
According to Dr. Neal Barnard, milk is preferred mainly because _____.
| A．children like its taste | B．people ignore its disadvantages |
| C．it contains more calcium than other foods | D．the calcium in it can build up bone strength |
We can learn from the text that _____.
| A．bone strength is determined by many factors |
| B．people’s diets shouldn’t contain animal protein |
| C．the opinion of the PCRM will soon be accepted |
| D．people should turn to vegetables for calcium |
“In only six days I lost seven pounds of weight.”
“Two full inches in the first three days！”
These are the kinds of statements used in magazine，newspaper，radio and television ads，promising new shapes and new looks to those who buy the medicine or the device. The promoters of products say they can shape the legs，slim the face，smooth wrinkles，or in some other way to add to beauty or desirability.
Often such products are nothing more than moneymaking things for their promoters. The results they produce are questionable，and some are dangerous to health.
To understand how these products can be legally promoted to the public，it is necessary to understand something of the laws covering their regulation. If the product is a drug，FDA(Food and Drug Administration)can require proof under the Food，Drug，and Cosmetic Act that is safe and effective before it is put on the market. But if the product is a device，FDA has no authority to require premarketing proof of safety or effectiveness. If a product already on the market is a danger to health，FDA can request the producer or distributor to remove it from the market voluntarily，or it can take legal action，including seizure(查封)of the product.
One notable case a few years ago involved an electrical device called the Relaxacisor，which had been sold for reducing the waistline. The Relaxacisor produced electrical shocks to the body through contact pads. FDA took legal action against the distributor to stop the sale of the device on the grounds that it was dangerous to health and life.
Obviously，most of the devices on the market have never been the subject of court proceedings(法律诉讼)，and new devices appear continually. Before buying，it is up to the consumer to judge the safety or effectiveness of such items.It can be inferred that the ads mentioned in the text are________.
| A．objective | B．costly | C．unreliable | D．illegal |
FDA can ask for the proof of safety and effectiveness of a product ________.
| A．if it is a drug |
| B．if it is a device |
| C．if its consumers make complaints |
| D．if its distributors challenge FDA's authority |
The Relaxacisor is mentioned as________.
| A．a product which was designed to produce electricity |
| B．a product whose distributor was involved in a legal case |
| C．a successful advertisement of a beauty product |
| D．an example of a quality beauty product |
The author intends to________.
| A．make consumers aware of the promoters' false promises |
| B．show the weakness of the law on product safety |
| C．give advice on how to keep young and beautiful |
| D．introduce the organization of FDA |
Even plants can run a fever, especially when they're under attack by insects or disease. But unlike human, plants can have their temperature taken from 3,000 feet away—straight up. A decade ago, adopting the infrared(红外线)scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide(杀虫剂)spraying rather than rain poison on a whole field, which invariably includes plants that don't have pest problems.
Even better, Paley's Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a colourcoded map showing where plants were running “fevers”. Farmers could then spotspray, using 50 to 70 percent less pesticide than they otherwise would.
The bad news is that Paley's company closed down in 1984, after only three years. Farmers resisted the new technology and longterm backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. “This technique can be used on 75 percent of agricultural land in the United States, ” says George Oerther of Texas A & M. Ray Jackson, who recently retired from the Department of Agriculture, thinks remote infrared crop scanning could be adopted by the end of the decade. But only if Paley finds the financial backing which he failed to obtain 10 years ago.Plants will send out an increased amount of heat when they are________.
| A．facing an infrared scanner |
| B．sprayed with pesticides |
| C．in poor physical condition |
| D．exposed to excessive sun rays |
In order to apply pesticide spraying precisely, we can use infrared scanning to________.
| A．estimate the damage to the crops |
| B．draw a colourcoded map |
| C．measure the size of the affected area |
| D．locate the problem area |
Farmers can save a considerable amount of pesticide by________.
| A．resorting to spotspraying |
| B．transforming poisoned rain |
| C．consulting infrared scanning experts |
| D．detecting crop problems at an early stage |
The application of infrared scanning technology to agriculture met with some difficulties—________.
| A．its high cost |
| B．the lack of official support |
| C．the lack of financial support |
| D．its failure to help increase production |
High Speed Book Scanner
Simply turning pages of a book quickly may not seem like the best way to scan it. A Japanese research group at Tokyo University has created new software that allows hundreds of pages to be scanned within minutes. Scanning text is normally a boring process with each page having to be inserted into a scanner, but the team led by Professor Masatoshi Ishikawa uses a high speed camera that takes 500 pictures a second to scan pages as they are turned by workers.
Normal scanners can only scan the information that is actually before them on the page. This high speed book scanner uses a camera that captures pages at 1000fps as they are turned. A system built in allows it to automatically correct any changes to the text due to the page bending as well as light differences due to shadows. “It takes a shot of the shape, then it calculates the shape and uses those calculations to film the scanning,” Ishikawa said, explaining the system used to reconstruct the original page.
The current system is able to scan an average 250-page book in a little over 60 seconds using basic computer hardware. While it now requires extra time to process the scanned images (影像), the researchers hope to eventually make the technology both faster and much smaller. “In the more distant future, once it becomes possible to put all of this processing on one chip (芯片) and then put that in an iPad or iPod, one could scan just using that chip. At that point, it becomes possible to scan something quickly to save for later reading,” Ishikawa said.
Being able to scan books with an iPhone may be further off, but Ishikawa says that a commercial version of the large-scale computer based scanning system could be available in two or three years. While the technology has the potential to take paper books into the digital age, it remains to be how publishers will react to people scanning their books while just turning pages quickly. According to the passage, the advantage of the new scanning software is that ______.
| A．there is no need to scan every page |
| B．it can work much more effectively |
| C．no manpower is needed in operating the scanner |
| D．it can make the scanning process more interesting |
According to Ishikawa, the scanner works by_____.
| A．changing the shape of the images |
| B．reducing the size of the images |
| C．reconstructing the original page |
| D．scanning several pages at the same time |
What is Ishikawa’s attitude towards the development of the scanning system?
| A．Optimistic. | B．Uncertain. | C．Disapproving. | D．Cautious. |
What does the underlined sentence mean?
| A．People will get any book they like more easily. |
| B．Publishers will refuse to comment on the new software. |
| C．Publishers will probably not welcome the new software. |
| D．People won’t need to buy books any more with an iPhone. |
In a room at Texas Children Cancer Center in Houston, eight-year-old Simran Jatar lay in bed with a drip (点滴) above her to fight her bone cancer. Over her bald (秃的) head, she wore a pink hat that matched her clothes. But the third grader’s cheery dressing didn’t mask her pain and weary eyes.
Then a visitor showed up. “Do you want to write a song?” asked Anita Kruse, 49, rolling a cart equipped with an electronic keyboard, a microphone and speakers. Simran stared. “Have you ever written a poem?” Anita Kruse continued. “Well, yes,” Simran said.
Within minutes, Simran was reading her poem into the microphone. “Some bird soaring through the sky,” she said softly. “Imagination in its head…” Anita Kruse added piano music, a few warbling (鸣, 唱) birds, and finally the girl’s voice. Thirty minutes later, she presented Simran with a CD of her first recorded song.
That was the beginning of Anita Kruse’s project, Purple Songs Can Fly, one that has helped more than 125 young patients write and record songs. As a composer and pianist who had performed at the hospital, Kruse said that the idea of how she could help “came in one flash”.
The effect on the kids has been great. One teenage girl, curling (蜷缩) in pain in her wheelchair, stood unaided to dance to a hip-hop song she had written. A 12-year-old boy with Hodgkin’s disease who rarely spoke surprised his doctors with a song he called I Can Make It.
“My time with the kids is heartbreaking because of the severity of their illnesses,” says Anita Kruse. “But they also make you happy, when the children are smiling, excited to share their CD with their families.”
Simran is now an active sixth grader and cancer-free. From time to time, she and her mother listen to her song, Always Remembering, and they always remember the “really sweet and nice and loving” lady who gave them a shining moment in the dark hour. Simran Jatar lay in bed in hospital because ______.
| A．most of her hair had fallen out |
| B．she was receiving treatment for cancer |
| C．she felt depressed and quit from school |
| D．she was suffering from a pain in her back |
What do we know about Anita Kruse’s project?
| A．It helps young patients record songs. |
| B．It is supported by singers and patients. |
| C．It aims to replace the medical treatment. |
| D．It offers patients chances to realize their dreams. |
What does the case of a 12-year-old boy suggest?
| A．Most children are naturally fond of music. |
| B．He was brave enough to put up performance. |
| C．The project has positive effect on young patients. |
| D．Singing is the best way to treat some illnesses. |
What is probably the best title for the passage?
| A．Purple Songs Can Fly |
| B．Singing Can Improve Health |
| C．A Shining Moment in Life |
| D．A Kind Woman—Anita Kruse |
Chinese and Western eating habits are different. In China, the dishes are placed on the table and everybody shares. It is always polite to let guests or elderly people at the table taste every dish first. But in the West, everyone has his or her own plate of food.
Although there are no strict rules on how to set chopsticks and spoons, there are some things you should never do during a Chinese banquet (筵席).
Firstly and most importantly, don’t put your chopsticks upright in the rice bowl. Instead, lay them on your dish. The reason for this is that when people die, family members give them a bowl full of rice with a pair of chopsticks sticking out upright in it. So if you stick your chopsticks in the rice bowl, it appears that you want someone at the table to die.
Make sure the spout(容器嘴) of the teapot is not facing anyone, as this is impolite. The spout should always be directed to where nobody is sitting, usually just outward from the table.
Don’t tap on your bowl with your chopsticks. Beggars tap on their bowls, so this is not polite. Also, when the food is coming too slow in a restaurant, you should not tap on your bowl. If you are in someone’s home, it is like insulting the cook.What is the difference between Chinese and Western eating habits according to Paragraph 1?
| A．In China people are very polite, while in the West people are not so. |
| B．In China people share the dishes, while in the West people eat separately. |
| C．In China people use the chopsticks, while in the West people use the knife and fork. |
| D．None of the above. |
What is the main idea of the third paragraph?
| A．The reason why chopsticks shouldn’t be put upright in the rice bowl. |
| B．The Chinese use chopsticks to eat. |
| C．The Chinese eating habits. |
| D．How to use chopsticks. |
Which of the following statements is TRUE according to the passage?
| A．It is polite to taste the dishes before the guests or the elderly. |
| B．You can put your chopsticks wherever you want. |
| C．Never tap on your bowls with the chopsticks during the meal. |
| D．Teenagers can stick their chopsticks in the rice bowl. |
The underlined word “insulting” in the last paragraph probably means “_________”.
| A．playing jokes on | B．laughing at | C．treating badly | D．looking down upon |