Food safety is a problem in all places around the world and people in different areas of the world prepare foods in different ways. The WHO released (发布) five simple rules for preparing food in a safe way. They call these rules the “Five Keys to Safer Food”.

Key 1: Keep clean

    {#blank#}1{#/blank#} People should wash their hands often — before touching food and while they are preparing food. People should wash all surfaces and equipment used for preparing food.

Key 2: Separate raw (生的) and cooked

    Raw foods should not touch prepared foods.{#blank#}2{#/blank#}

Key 3:{#blank#}3{#/blank#}

    People should cook eggs and meat especially carefully. These foods may carry more micro-organisms (微生物) than other foods. Food like soup must be boiled for at least a minute to make it be cooked completely. It is also important that people re-heat cooked food completely.

Key 4: Keep food at safe temperatures

    When people are finished with eating, they should keep the left food in a refrigerator below 5℃ and shouldn't store it for too long. At room temperature, about 20℃, the amount of micro-organisms can increase very quickly. But temperatures above 60℃ or below 5℃ control the growth of micro-organisms.{#blank#}4{#/blank#}

Key 5: Use safe water and raw materials

    {#blank#}5{#/blank#}. Damaged or old food may develop harmful chemicals as it gets older.

A. Eat healthily

B. Cook completely

C. They can live where we make food

D. This key tells about the importance of washing

E. People should use safe water and choose fresh foods

F. They cannot grow as quickly in a very hot or very cold environment

G. People should use separate equipment and tools for touching and preparing raw foods

    What is the difference between developed and developing countries? The question is quite a difficult one. But we can compare them in two important aspects: people and economy.

    In developing countries there are high rates of both birth and death. Families decide to give birth to more than one child, because many developing countries do not have the systems necessary to guarantee(保证) the life of old people. Raising more children seems to be the only way to make sure that during their later years a person will be taken care of.

    The situation is completely different in fully-developed countries. Those countries have low levels of birth and mortality. Low mortality rate is mainly because of the good health care, but low birth rate is due to the fact that supporting a family with more children is expensive nowadays. Another reason is that more and more women decide to work outside, so there is usually no time and place for a large group of children in their lives.

    In developed countries, most industries have high levels of technological progress, while in developing countries most GDP comes from agriculture. It is mainly due to the fact that services and many branches of industry are in the stage of development. But they have the potential to develop quickly, because they have many things to improve.

    Of course, the difference between developed and developing countries is not that clear, because some countries might be in the middle of great changes. When a country is in that stage, some data can define the country as a developing one, but others may show that it is a developed one.

    In his research work, Philosophical Investigations（哲学调查）, Ludwig Wittgenstein tries to clarify（澄清）some of the problems in people's thinking about how the mind works.

    Imagine, he says, that everyone has a small box in which they keep a beetle（甲壳虫）. No one is allowed to look in anyone else's box, only in their own. Over time, people talk about what is in their boxes and the word “beetle” comes to stand for what is in everyone's box. Through this example, Wittgenstein point out that the beetle is very much like an individual's（个体的）mind; no one can know exactly what it is like to be another person or experience things from another's point of view—look in someone else's “box”—but it is general considered that the mental working of another person's mind is very similar to that of our own. However, it does not really matter—he argues—what is in the box or whether everyone indeed has a beetle, since there is no way of checking or comparing. In a sense, the word “beetle” simply means “what is in the box”. From this point of view, the mind is simply “what is in the box”, or rather “what is in your head”.

    Wittgenstein considers language to have meaning because of public usage. In other words, when we talk of having a mind—or a beetle—we are using a term that we have learned through conversation. The concept might be perceived（感知）differently in each of our minds, so the word “mind” cannot be used to refer specifically to some entity（本质）outside of our own conception（概念）, since we cannot see into other people's boxes.

    The holiday season means friends, family, parties﹣﹣and lots of unhealthy food.{#blank#}1{#/blank#}

    Save your pocket money.

    If you're going to relax a few times over the season, concentrate on foods that are special or unique to this time of year not the ones you can get year﹣round to avoid holiday weight gain, says Gary Foster, PhD, chief scientific officer for Weight Watchers. That means letting yourself enjoy a piece of pumpkin pie on Thanksgiving,{#blank#}2{#/blank#}The seasonal focus means when the holidays are past, the temptations will go with them and you can return to healthy eating.

    Wait to enjoy.

    "We recommend you delay your drink until you have food in your stomach," says Elizabeth Politti, RD, nutrition director for the Duke Diet and Fitness Center. She explains that food can help delay the absorption of alcohol. "Set some limits for yourself about alcohol such as that you won't have more than one or two drinks."  {#blank#}3{#/blank#}If one glass of wine makes you completely lose your eating inhibitions（抑制）,maybe it's better to hold in the face of food temptation.

    {#blank#}4{#/blank#}

    If you're a regular gym rat, great. But if not, you can still avoid holiday weight gain by taking every opportunity to stay physically active. That means taking the stairs instead of the elevator, or getting off the bus a few stops early {#blank#}5{#/blank#}And add bits of intensity, short bursts of more activity, whenever you can. These are the best workouts for people who hate exercise.

A. Stay active.

B. And know yourself.

C. When you're tired, your defenses go down

D. but not a stack of chocolate chip cookies at the office Christmas party.

E. Thanksgiving and New Year's aren't really 12weeks of nonstop eating

F. all the little tricks for adding activity to your day you've read before.

G. These expert tips will help you avoid holiday weight gain without compromising the fun.

    We all need to eat. So, meals could be a chance to stop what we're doing and spend time with the people in our lives. A recent study from a team of South Korea suggests that eating together has many good effects on children and teenagers while frequently eating alone may lead to poor eating habits and poor food choices. People who eat alone more than twice a week have a greater risk of developing high blood pressure.

    There are benefits of family dinners on children and teenagers.

    In 2014, the Organization for Economic Cooperation and Development (OECD) looked at data from nearly three-quarters of the world's countries. Among its findings is the fact that students who share a main meal with their families are less likely to hate school. Children who eat a main meal with their families are also less likely to take drugs (毒品).

    In the report, titled "The Importance of Family Dinners (VIII)," researchers say that teens who have frequent family dinners are more likely to say their parents know a lot about what's going on in their lives.

    Another study from the University of Montreal finds that children who eat with their families experience long-term physical and mental health benefits. These children are physically in better shape and drink fewer sugary soft drinks. These children also seem to have better social skills and are less violent.

    One of the researchers, Pagane, involved in this study is a professor at the university. She says that mealtimes with parents possibly provide young children with firsthand social events, which helps them have better communication skills.

The Yinxu Museum opens in Anyang, Henan province, to display the brilliance of the 3, 000-year-old Shang civilization.

Nearly 4, 000 unearthed cultural relics(遗迹) are displayed in the museum. More than three quarters of these have never been {#blank#}1{#/blank#} (public) exhibited before. The 23 vehicles unearthed from Yinxu are the{#blank#}2{#/blank#}(highlight) in the new galleries. Also on display{#blank#}3{#/blank#}(be) Shang relics collected from across the rest of present-day China.

The Yinxu Ruins,{#blank#}4{#/blank#}(list) as a UNESCO World Heritage Site in 2006, hosted a later period Shang capital city. The site also produced rich findings of 3,300-year-old bones,{#blank#}5{#/blank#}(reveal) the oldest-known established writing system of Chinese characters,{#blank#}6{#/blank#}are extraordinary and serve as a vital link in the development of the Chinese nation.

Many key breakthroughs{#blank#}7{#/blank#}(make) in recent years at the Yinxu site and its surrounding areas. For example,{#blank#}8{#/blank#}urban road system and the remains of an artificial lake in the royal temple area were found. These discoveries further displayed a grand picture of a capital city{#blank#}9{#/blank#}.carried forward the project of tracking the origins of the Chinese civilization. Through the exhibits, the public can comprehensively understand the achievements made by the Shang Dynasty in terms{#blank#}10{#/blank#}politics, economy, agriculture, military affairs, among others.