8 . Is It Worth Buying Organic Food?
Organic food, grown without artificial chemicals, is increasingly popular nowadays. Consumers have been willing to pay up to twice as much for goods with organic labels (标签). However, if you think paying a little more for organic food gets you a more nutritious (有营养的) and safer product, you might want to save your money. A study led by researchers at Stanford University says that organic products aren’t necessarily more nutritious, and they’re no less likely to suffer from disease-causing bacteria, either.
The latest results, published in the Annuals of Internal Medicine, suggest that buyers may be wasting their money. “We did not find strong evidence that organic food is more nutritious or healthier,” says Dr. Crystal Smith-Spangler from Stanford. “So consumers shouldn’t assume that one type of food has a lower risk or is safer.”
For their new study, Smith-Spangler and her colleagues conducted a review of two categories of research, including 17 studies that compared health outcomes between consumers of organic against traditional food products, and 223 studies that analyzed the nutritional content of the foods, including key vitamins, minerals and fats.
While the researchers found little difference in nutritional content, they did find that organic fruit and vegetables were 20% less likely to have chemicals remaining on the surfaces. Neither organic nor traditional foods showed levels of chemicals high enough to go beyond food safety standards. And both organic and traditional meats, such as chicken and pork, were equally likely to be harmed by bacteria at very low rates. The researchers did find that organic milk and chicken contained higher levels of omega-3 fatty acids, a healthy fat also found in fish that can reduce the risk of heart disease. However, these nutritional differences were too small, and the researchers were unwilling to make much of them until further studies confirm the trends.
Organic food is produced with fewer chemicals and more natural-growing practices, but that doesn’t always translate into a more nutritious or healthier product. The U.S. Department of Agriculture (USDA) states that “Whether you buy organic or not, finding the freshest foods available may have the biggest effect on taste.” Fresh food is at least as good as anything marketed as organic.
1. The new research questions whether organic food ________.| A．should replace traditional food |
| B．has been overpriced by farmers |
| C．is grown with less harmful chemicals |
| D．is really more nutritious and healthier |
| A．organic food could reduce the risk of heart disease |
| B．traditional food was grown with more natural methods |
| C．both organic and traditional food they examined were safe |
| D．there was not a presence of any forms of bacteria in organic food |
| A．Organic chicken and pork. |
| B．Organic milk and chicken. |
| C．Traditional chicken and pork. |
| D．Traditional fruit and vegetables. |
| A．Doubtful. | B．Positive. | C．Unconcerned. | D．Approving. |
9 . How to deal with your homework
Write it down.
Create a homework station. Find somewhere comfortable and quiet to do your homework.
Do homework as early as possible. Don’t leave homework to the last minute.
Treat yourself. You can easily get tired by sitting through an hour or two of homework without stopping. Once you finish homework for a subject, take a small break (no more than 15 minutes). Either taking a walk or finding something to eat will do. But do not turn on the TV, or you’ll never go back to your study.
| A．Use your time wisely. |
| B．Start as soon as you get home. |
| C．Start with your hardest homework. |
| D．Do not burn the midnight oil, either. |
| E．Never do your homework in front of the TV. |
| F．After short breaks, return to finish the rest of your homework. |
| G．Keep a homework notebook where you record all your homework. |
10 . Top Silk Road Attractions
Terracotta Warriors (兵马俑)
Type: History Museums, Historic Sites
Recommended Length of Visit: 3 hours
As the eighth wonder of the ancient world, it has a history of more than 2, 200 years. Oriental mummies (东方木乃伊) wait for you to discover their mystery.
Mogao Grottoes (莫高窟)
Type: Buddhism, Historic Sites
Recommended Length of Visit: 3 hours
Considered as the eastern Louvre Museum, Mogao Grottoes is a glorious treasure of ancient Buddhist cave art. The history of Mogao Grottoes can be traced back to the “Five Hu — 16Kingdoms” period (AD 304-439).
Big Wild Goose Pagoda (大雁塔)
Type: Culture & History, Buddhism
Recommended Length of Visit: 2 hours
For hundreds of years, this great pagoda has always been the symbol of Xi’an. It is famous for the great traveler Xuanzang of Tang Dynasty who traveled from China to India to learn the Buddhism and got back to China with many precious Buddhist scriptures (佛经).
Qinghai Lake
Type: Lake
Recommended Length of Visit: 5 hours
Known as the largest inland lake, as well as the largest salt water lake in China, it is the most visited and famous attraction in Qinghai Province. Here, you not only enjoy the fantastic natural beauty, but also experience the amazing culture here.
Please click here to add the attraction to your favorite list. Let us plan a private Silk Road Tour for you!
1. What do Mogao Grottoes and Big Wild Goose Pagoda have in common?| A．Both contain ancient Buddhist cave art. |
| B．Both are related to history and Buddhism. |
| C．Both are known as the symbol of Xi’an. |
| D．Both were constructed during the Tang Dynasty. |
| A．Terracotta Warriors. | B．Mogao Grottoes. |
| C．Big Wild Goose Pagoda. | D．Qinghai Lake. |
| A．A novel. | B．A storybook. |
| C．A website. | D．A magazine. |
