Black Friday is the day after Thanksgiving Day and the Friday before Cyber Monday in the United States. It is a busy shopping day and is a holiday in some states. Many people have a day off work on Black Friday. Some people use this to make trips to see family members or friends who live in other areas or to go on vacation.{#blank#}1{#/blank#}

    Shopping for Christmas presents is also popular on Black Friday. Many stores have special offers and lower their prices on some goods, such as toys.

    {#blank#}2{#/blank#}Many people take a day of their annual leave on the day after Thanksgiving Day. Many organizations also close for the Thanksgiving weekend.

    Public transport systems may run on their normal schedule or may have changes.{#blank#}3{#/blank#}There can also be congestion (拥挤）on roads to popular shopping destinations.

    Black Friday is one of the busiest shopping days in the USA.{#blank#}4{#/blank#}One theory is that the wheels ofvehicles in heavy traffic on the day after Thanksgiving Day left many black markings on the road surface, leading to the term Black Friday.

    The other theory is that the term Black Friday comes from an old way of recording business accounts.{#blank#}5{#/blank#}Many businesses, particularly small businesses, started making profits before Christmas. Many hoped to start showing a profit, marked in black ink, on the day after Thanksgiving Day.

A. Black Friday is a public holiday in some states.

B. Black Friday is a shopping day for a lot of reasons.

C. Losses were recorded in red ink and profits in black ink.

D. Others use it to start shopping for the Christmas season.

E. Some stores extend their opening hours on Black Friday.

F. As time goes on, a new explanation of black Friday has become popular.

G. There are two popular theories as to why the day after Thanksgiving Day is called Black Friday.

    Scientists have found that human eyes are more likely to be damaged by UV rays (紫外线) while skiing in the snow-covered areas than sitting on the beach, according to a report by the UK newspaper The Telegraph.

    The researchers at Kanazawa Medical University, Japan and American company Johnson conducted the study together. They looked at the effects of light reflection on newly fallen snow on a ski trail (a rough path) in Ishikawa District, northern Japan. They compared the results with the levels of UV rays on a sand beach in southern Japan's Okinawa District They found that on the beach, eyes are exposed to a daily 260 kilojoules (千焦耳) of UV a square meter compared to 658 kilojoules in snow-covered areas. The findings are supported by the Japan Meteorological Agency. According to the agency, the reflection rate of UV light on beaches is often between 10 and 25 percent, compared to 80 percent in lie new snow areas. The amount of light increased 4 percent with a 300-meter rise in height.

    Most of us know that UV rays can harm the skin. That's why we wear sunscreen on our skin before we get out in the suit. But many of us may not realize that UV rays are also harmful to the eyes.

    If your eyes are exposed to large amounts of UV radiation over a short period of time. You may experience a kind of sunburn of the eye, which is harmful. Your eyes will become red and feel a strange feeling. They may be sensitive to light. Fortunately, this is usually temporary and seldom causes permanent damage to the eyes.

    Long-term exposure to UV radiation, however, can be more serious. Scientific studies and researches have shown that exposure to small amounts of UV radiation over a period of many years increases chance of eye damage, which could lead to total blindness.

In an attempt to fight with the nation's food wastage problem, Denmark has opened the world's first supermarket that sells expired(过期的) or damaged products. Ever since the grand opening in Copenhagen last Monday, people have been lining up outside WeFood for a chance to purchase discounted items that would otherwise have ended up in the trash because of damaged packaging or very short use—by dates. Food, cosmetics, and other household items at WeFood are priced at least 30 to 50 percent lower than at regular stores.

    “WeFood is the first supermarket of its kind in Denmark and perhaps the world, as it is not just aimed at low-income shoppers but anyone who is concerned about the amount of food wastage produced in the country,” said project head Per Bjerre. “Many people see this as a positive and correct way to approach the issue.”

    While Denmark alone is estimated to waste about 700,000 tons of food every year, the United Nations has stated that globally, food waste amounts to 1.3 billion tons. About 795 million people in the world are undernourished. Denmark, however, has adopted several measures to clean up its act, wasting 25% less food than it did five years ago.

    The WeFood project is a collaboration between The Food Bank and charity DanCurch Aid. Together they raised nearly $150.000 over the past year through crowdfunding. They also had to face many obstacles while convincing the government to permit the sale of expired food. They were finally allowed to carry out the project, and the store is now run only by volunteers. Profits are used to fund DanChurch Aid's other projects in developing nations like South Sudan and Bangladesh.

    Provided WeFood's remains popular in the long term and if it is able to maintain its food deliveries, DanChurch Aid plans to open multiple branches across Denmark.

An aspirin a day keeps the doctor away

    Dr. Tim Johnson discusses evidence of a daily dose of aspirin's benefits. That's not the saying, but doctors have agreed, for about a generation, that an aspirin a day is good for you. It may reduce the risk of heart attacks or strokes by 20 percent or more.

    The US Preventive Services Task Force, an independent group convened by the Department of Health and Human Services, has published guidelines that it says should end the confusion.

    The key points:

    ⒈Men should start a daily aspirin at age 45, mainly to protect against heart attacks.

    ⒉Women should start at 55, mainly to protect against stroke.

    ⒊For both sexes, a baby aspirin-typically 81 milligram a day-will do the job. There is no evidence that a large dose makes a difference.

    ⒋And both sexes should stop by age 80, unless their doctors say otherwise. As you get older, there's a greater risk of bleeding in the brain or the digestive system, a risk that is small but can be deadly in some cases.

    If people start taking aspirin as the guidelines, doctors say their risk of heart attacks will drop by about 20 percent. "People may ask themselves 'Am I at risk for a heart attack or a stroke?'" said Dr. Randal Thomas, director of cardiovas-cular health at the Mayo Clinic in Minnesota "If you are age 45 and male, if you're above age 55 and female, the answer is most likely yes, and you will most likely benefit from taking a small dose of aspirin a day.

    When it comes to learning a foreign language, many people wonder if they will be able to memorize enough vocabulary. But this question never happens about their mother tongue, and yet, it was a foreign language once. However, among all the questions that new parents ask, no doctor has ever heard: "Will my baby be able to learn my language?" Be honest, do you know all the words of your mother tongue? The answer is: "no".

    New words, and new ways of using old words, appear every day. Twenty years ago, who could have been able to understand a sentence like this: "Click here to download your digital book."? Nobody. You never stop learning new vocabulary and you never know how long you will need it.

    Sometimes, you have the word on the tip of your tongue...and it sticks there! But you do know this phenomenon(现象) and don't think that it is because of a bad memory. You should not give this phenomenon more importance in the language you are learning than in your mother tongue.

    You need to learn only 2000 or so basic words to be able to create any phrase you need. You can't avoid some work in order to learn these necessary words and all the more if you want to learn quickly. And before you consider buying into any method, be sure it is right for you. It is not wise to depend on any method based upon mnemonics(记忆群). The first few words seem very easy to learn, so you buy the course, but then you discover quickly, though too late, that a dozen words later, it is all the more difficult to learn a new word when you have also to learn the trick to memorize it.

Porcelain(瓷器)is a material made from well-chosen porcelain clay through a series of technological {#blank#}1{#/blank#}(process)like mixing, molding, drying and firing. Although porcelain developed from pottery, it is superior in both practical {#blank#}2{#/blank#}.artistic terms. Perhaps that is {#blank#}3{#/blank#} it gradually replaced pottery in history.

The{#blank#}4{#/blank#} (early) porcelain, commonly called "primitive porcelain", appeared during the Shang Dynasty, But the first porcelain in real sense was not produced until the Eastern Han Dynasty. Later with the processing techniques{#blank#}5{#/blank#} (mature)all the way, famous kilns(窑), including what are known as the "Five. Great Kilns", emerged {#blank#}6{#/blank#} quantity during the Song Dynasty. In the Yuan Dynasty, Jingdezhen, the Capital of Porcelain, produced blue and white porcelain which later became the {#blank#}7{#/blank#} (represent)of porcelain. Porcelain of the Qing Dynasty is classical, graceful, delicate and splendid, thus becoming superb goods popular at home and abroad.

Porcelain is the creative fruit of {#blank#}8{#/blank#} working people of ancient China. Since the Han and Tang Dynasties, porcelain {#blank#}9{#/blank#} (export)worldwide. It promotes economic and cultural exchange between China and the outside world, and {#blank#}10{#/blank#} (dramatic)influences he traditional culture and lifestyle of people from other countries.