Recently some American scientists have given a useful piece of advice to people in industrialized nations．They say people should eat more of the same kind of food eaten by humans living more than 10,000 years ago． {#blank#}1{#/blank#}

     The scientists say that the human life has changed greatly．Our bodies have not been able to deal with these changes in life style and this had led to new kinds of sicknesses． {#blank#}2{#/blank#} So they are called "diseases of civilization"．Many cancersand diseases of the blood system are examples of such diseases.

      Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none． {#blank#}3{#/blank#}  However, a change in food is one of the maindifferences between life in ancient times and that of today.

      Stone Age people hunted wild animals for their meat, which hadmuch less fat than domestic ones．They ate a lotof fresh wild vegetables and fruits．They did nothave milk or any other dairy products, and they made very little use of grains． {#blank#}4{#/blank#}  We eat six times more salt than our ancestors．We eat moresugar．We eat twice as much fat but only one third as much protein andmuch less vitamin C.

{#blank#}5{#/blank#} But scientists say that we would be much healthier if weeat much the same way the ancient people did, cutting the amount of fatty,salty and sweet food.

A．Stone Agepeople lived a simple life.

B．But today, weenjoy eating a lot of these.

C．In that case,they would live much healthier.

D．Ancient people also got lots of physical exercise.

E．These new sicknesses were not known in ancient times.

F．People today probably don't want to live like our ancestors.

G．Modern people used to suffer from "diseases of civilization".

    There is an old Spanish saying which states, “Tomorrow is often the busiest day of the week.” How many times have we put off our dreams tomorrow? {#blank#}1{#/blank#} We have to go for them now!

Tomorrow is not promised.

    Nobody likes to talk about death, but everybody is going to die at one point. None of us know the day or the hour. {#blank#}2{#/blank#} Don't go to your tomb(坟墓) with unrealized dreams. Make the decision to go after every dream, big or small right now.

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    One of the biggest dream killers is fear. Many people could have achieved amazing things if only they weren't afraid. Just think about all the things you've wanted to go, but allowed fear to convince you that you weren't talented, or good enough. Fear is not real. It is a product of thoughts you create.

Take action to realize your dream.

    You can dream about writing a great play, but it's never going to happen unless you actually put pen to paper. You can dream about finding a cure for cancer, but it will never happen unless you actually become equipped with the necessary tools to find that cure. {#blank#}4{#/blank#}

Possibilities are waiting on you.

    There are so many amazing opportunities and people waiting on you. How do you get to them? Simple! Follow your dream. {#blank#}5{#/blank#} You'll never see those doors if you sit around waiting on a dream to happen, instead of actually working to make it happen.

    The holiday season isn't just about shopping and gifts. {#blank#}1{#/blank#} However, holiday travel can be more expensive than the gifts. Fortunately, the following tips will help keep your travel spending under control.

● Plan ahead. The earlier you book your travel, from airfare to hotels, the easier it is to find good deals. {#blank#}2{#/blank#} Your best prices on airfare come when you book three weeks before the plane leaves for domestic flights. For international flights, consider booking 30 days in advance. Many experts point out that you should book travel between  one month and three months out for high-traffic holidays.

● Book your air travel on cheaper days. Traveling by air on Tuesdays and Wednesdays often costs less than traveling on Fridays and Sundays. During the holidays, it is not just about a specific day of the week. You also need to consider the days surrounding the holiday but days immediately before and after a holiday can be expensive. One of the best ways to save is to plan your air travel on the Day of the holiday. {#blank#}3{#/blank#}

● Consider traveling overnight. Red-eye flights and overnight flights often cost less than those at more convenient times. {#blank#}4{#/blank#}Traveling overnight can help you avoid a night in the hotel, as well as save your money on travel to your destination.

●{#blank#}5{#/blank#} You can't bring liquids with you on the airline, but you can bring sandwiches and other snacks. When you are on the road, you can buy food at local groceries to make your own meals. If you are staying in a hotel long-term, consider cooking your own food, especially if you have access to a microwave.

    Listening to others requires entering actively and imaginatively into the situation and trying to understand a frame of reference different from your own, and yet so many of us don't listen properly as we should. Listening means more than just sitting silently while someone else talks{#blank#}1{#/blank#}

    Here are some ways to become a better listener.

    {#blank#}2{#/blank#} Make sure you actually hear fully what your friend is saying, and you can't cut your friend off verbally carelessly. While you might intend to help move the conversation along, your friend might feel as if what he has said need to be continually talked over or sound anything but interesting.

    Nod to encourage the conversation along. A better option to let your friend know you're interested in what he says is just to nod along from time to time. Sometimes you nod along but then start thinking about something unrelated to what he could say{#blank#}3{#/blank#}

    Turn out background noise. If you're easily distracted by laughter, glasses clinking, children crying, you might need to work extra hard to focus only on your friend{#blank#}4{#/blank#} Don't hesitate to tell them that the background noises are getting in the way. If you can't focus, try moving to another area.

    Don't text or look at your phone!{#blank#}5{#/blank#} For you see, when you're sitting in front of someone, he is the most important person in your world at that moment.

A. Stop the speaker whenever you have a question.

B. Practice silence when someone else is talking.

C. If necessary, ask your friend to repeat himself.

D. Whoever is calling or texting can wait until you're done with your conversation.

E. It means trying to see the problem the way the speaker sees it.

F. In this case, try to push away your thoughts until you're absorbed in what your friend is saying.

G. Remembering ideas from previous conversations proves that your attention is kept and encourages your friend to continue.

    The search for one of life's greatest goals, happiness, is what brings almost 1,200 students to one of Yale University's most popular classes ever. {#blank#}1{#/blank#}Psychology professor Laurie Santos teaches the class.

    One in four Yale undergraduate students has registered to take it. It has the largest class registration size in Yale's 317-year history. {#blank#}2{#/blank#}Santos says it is the hope that science can help students find peace among all the stresses and difficulties they face at college. "Students report being more depressed than they have ever been in history at college," she said.

    Social science research has led to many new understandings of how people find happiness, Santos says. {#blank#}3{#/blank#} she said of the students taking her happiness class.

    Santos said feelings of happiness are created through several things. {#blank#}4{#/blank#} She added that while many people may see money and possessions as goals in life, those things are not usually what make people most happy. School work for the happiness class, also known as Psyc157, includes showing more gratitude, performing acts of kindness and increasing social connections. Because of the popularity of the class, it has been made publicly available -- for free – on the website Coursera.

    The class is already helping Yale students like senior Rebekah Siliezar. {#blank#}5{#/blank#}"What's most pressing on our minds is grades, it's the next job, it's a potential salary after graduation," said Siliezar. Now, she said tries more to "focus on the present moment and the people around me."

A. It is the third-oldest university in the United States.

B. The class is called "Psychology and the Good Life"

C. She describes her mindset before taking the class

D. Therefore, why do so many students want this class?

E. They really want to learn those insights in a science-driven way

F. Happy people even make time to talk to people who work at coffee shops.

G. Among them are socialization, exercise, meditation (冥想) and plenty of sleep.

    Do you enjoy your work? Maybe you do or maybe you don't. Chances are that you fall somewhere in the middle: you have good days and bad days, and you could definitely be happier than you currently are.{#blank#}1{#/blank#}.

    Be Friendly to Your Colleagues

    In some big offices, people might not even say "good morning" to one another. {#blank#}2{#/blank#}. You might think that you have nothing in common with them, but if you strike up a conversation, you may well find that they share some of your interests, hopes or ambitions.

    Focus on How You're Helping Clients

    Some jobs are pretty tiresome — there's no way round that. Whatever you're doing, though, you're helping someone.

Perhaps you work in McDonalds, helping customers who want a cheap, quick meal. Perhaps you do data entry, helping a big company to get their records organized so that they can take better care of their clients. In most jobs，you've got the potential to make someone else's day that bit better.{#blank#}3{#/blank#}.

    Do Your Hardest Task First

    Have you ever put off a difficult phone call or a high­pressure task for days and days, only to find it appears larger and larger in your mind? I've read a lot of productivity advice over the past few years, and something that almost all experts seem to agree on is that it's a good idea to get tough tasks out of the way as quickly as possible.{#blank#}4{#/blank#}. Plus, you'll constantly have that task hanging over you and dragging your mood down.

    {#blank#}5{#/blank#}

    Try eating at regular intervals — and go for healthy, tasty foods which make you feel energized rather than sluggish. Fresh fruit is a great snack option, or you can have dried fruit, nuts and/or seeds. Don't forget to drink enough water, too.

    These are all little, but significant, ways to be happier at work today. Put them into practice and you will feel inspired!

A. Eat Sensibly and Regularly

B. Eat Outside during Your Lunch Break

C. Here are several ways to be happier at work

D. The longer you wait, the more resistant you will feel

E. Doing that will almost certainly put a smile on your face

F. It costs nothing to be polite and friendly to your colleagues

G. Look for some small items to bring a bit of happiness into your day