Here, sleep experts clear up some of the biggest misunderstandings about sleep they see with their patients, which could weaken your ability to have a night of good sleep.

Myth: {#blank#}1{#/blank#}

    The latest research shows that the right amount of sleep may vary from person to person and should leave you feeling energized the next day. I'm a sleep doctor. Take myself for example. {#blank#}2{#/blank#}.

Myth: Don't fall asleep with the TV on.

    I've cured more people suffering from sleep problems than you can imagine by telling  people it's OK to fall asleep with the TV on. {#blank#}3{#/blank#}Control the watching time so it doesn't affect your sleep later in the night.

Myth: You can catch up on lost sleep on the weekend.

    {#blank#}4{#/blank#} A Harvard study found that even if you sleep for an extra 10 hours on the weekend to make up for only sleeping six hours a night for two weeks, those extra hours won't improve  your reaction times or ability to focus. Plus, sleeping late throws off your biological clock, which can lead to obesity, diabetes, and heart disease.

Myth: Alcohol can help you rest easy.

    {#blank#}5{#/blank#} Alcohol may relax you so you nod off quicker, but studies show you'll wake up more and get less of deep sleep you need to feel rested.

    Population ageing refers to the situation in which the average age of the citizens of a country increases as a result of longer life expectancy（预期寿命）of its citizens or a reduction in the number of births every year.Today, both developed and developing countries around the world are experiencing an increase in the average age of its citizens with a growing proportion（比例）of elders in the population.

    An increase in the proportion of elderly persons in the population leads to a growing pool of volunteers.This has been considered as a global advantage where the elderly contribute free labor to community and government projects after retirement.These elders are more comfortable financially（财政上）and find pleasure in giving back to their communities and countries.Besides,older people are more experienced than younger people,and they can make use of their experience to help uphold morals（维护道德）and values in a country.

    What's more,an ageing population has something to do with fewer children.This can save much cost because less money has to be used to meet the needs of fewer children and young people in the economy.This would result in lower public education cost,lower health-care cost and other social programs that are provided for children by the government.

    However,there are also a lot of disadvantages.For example,an increase in the proportion of the elderly in the population raises questions as to how best to support them after retirement.Also older people are more likely to suffer from illnesses,so an increasing number of sick persons will put pressure on health care,which might not be able to meet the demand.

    Furthermore,an ageing population also increases competition for jobs,especially if the retirement age is extended（延长）.As older members of the population have a longer time to retire,young people will find it more difficult to find jobs.In this case,fewer innovations（创新）and changes take place in organizations because companies are limited to old ways of doing things.

    So,in order to solve these problems brought by an aging population,careful long-term strategic planning is required.The elderly are important and they have much to offer in helping the young people to understand their purpose in life.An increase in social enterprises（规划）should be the trend to help get the elderly involved in young people's lives.

                   How to make friends at a new school

    Starting with a new school can be difficult. Everything seems to be different, and you don't even know where to go for your own classes.{#blank#}1{#/blank#}However, if you use these skills, you can quickly turn some of those strangers into friends.

Be yourself.

    {#blank#}2{#/blank#}If some people don't accept you, they're not the kind of friends you need. People often stay together because they have similar interests. For example, someone who does a lot of sport may make friends with those who also run or swim a lot. 

    {#blank#}3{#/blank#}

    Remember to be nice to the people you meet at your new school. If you think that you will say something that may make them feel sad, do not say anything and just nod your head if they talk to you. Also, remember to be as helpful as possible!

Believe in yourself.

    A smile goes a long way. When you walk in the halls, don't keep your eyes on the floor. Raise your head and make eye contact (目光接触) with other people.{#blank#}4{#/blank#}Introduce yourself. Tell them your name and where you're from.

Remember people's names.

    You like it when people use your name, and so do other people.{#blank#}5{#/blank#}Besides, ask them in a kind way if they have a nickname (昵称). You'd be surprised how often this might come in handy.

A. Be friendly to others.

B. Making new friends can be hard, too.

C. Join after-school activities you like.

D. Never change who you are to try and fit in.

E. If you see someone you know, smile or say “Hi”.

F. People may become angry if you just begin by saying “Hey” each time.

G. Don't sit at the back of the classroom where other people don't notice you!

    Choosing the right job is probably one of the most important decisions we have to make in life, and it is frequently one of the hardest decisions we have to make. One important question that you might ask yourself is: "How do I get a good job?"{#blank#}1{#/blank#}

    There are people who can answer an insignificant advertisement in the local paper and land the best job in the world; others write to all sorts of places all over the country, and never seem to get a reply at all. Still others believe that the in person, door-to-door approach is by far the best way to get a job; and then there are those who, through no active decision of their own, just seem to be in the right place at the right time. {#blank#}2{#/blank#} He used to spend a lot of his free time down by the sea watching the tall ships, but never thinking that he might one day sail one of them. His father was a farmer, and being a sailor could never be anything for the boy but an idle dream. One day, on his usual wandering, he heard the captain of the ship complaining that he could not sail because one member of his crew was sick. Without stopping to think, the lad(少年) offered to take his place. {#blank#}3{#/blank#}

    {#blank#}4{#/blank#} If the lad had gone home to ponder(考虑)his decision for a week, he may have missed his chance. It is one thing to be offered an opportunity; it is another thing to take it and use it well.

    Sometimes we hear stories about people who break all the rules and still seem to land plum jobs(美差). When you go for a job interview or fill out an application, you are expected to say nice things about the company to which you are applying. But there was one person who landed an excellent job by telling the interviewer all the company's faults. And within a year this person had become general manger of the company.

A. This story also illustrates the importance of seizing an opportunity when it presents itself.

B. People find jobs in an infinite number of ways.

C. it's almost impossible to find a good job by answering advertisement in newspapers

D. Take for example the young man who wanted to be a sailor.

E. It is very important to seize an opportunity when it presents itself.

F. He spent the rest of his life happily sailing the ships he had always loved.