If you can find a tree which has been cut down，you will see many rings，or circles，on the base of the trunk.By learning to read these rings，you can find out about the tree's life.

    The number of rings tells you how old the tree is.Each year，new wood is formed on the outside of the tree.This new wood is light in color when the tree is growing in spring and summer，and dark in winter when the tree is not growing much.So，if you count the rings of dark­or­light colored wood，you can often find out how old the tree is.

    You can also tell which years have been good years and which years have been bad years.When the light­colored rings are very wide，it means that the tree has been growing quickly that year.If the rings are narrow，it has been growing slowly.If the rings on a tree trunk were greatly magnified，you would be able to see why the rings are light­colored when the tree is growing quickly and dark­colored when the tree is growing slowly.The tree trunk is made up of microscopic tubes，like some pipes，carrying water from the soil，through the trunk，and up to the leaves.They are wide and thin­walled when the tree is growing quickly and they are carrying a lot of water.They are narrow and stuck together when the tree is not growing so quickly.

    When a tree is old，the tubes in the centre of the tree don't carry water.The walls of the tubes have become thick with materials which have stuck along them over the years，forming a kind of wood called“heartwood”．This kind of wood is darker in color than the young，growing wood on the outside of the tree.

    You don't very often see whole tree trunks which have been cut across.But once you learn to read a cross section of the wood，you can see much more in wood which has been used to make boxes，houses and other things.

    In most wood，instead of seeing the trunk cut across，you are seeing it cut along its length.Because you don't see the whole tree，you can't tell how old it is.

Title：{#blank#}1{#/blank#} of a Tree

    Learning English is challenging because of the various rules and exceptions to the rules. The best way to learn English is to hear it spoken and repeat the words as you hear them. {#blank#}1{#/blank#}You will learn how to make English a daily part of your life in order to learn to speak it quickly.

    {#blank#}2{#/blank#} Ask a friend to help you write letters of English alphabet on index cards. You should write a letter on each card. Practise the letters by mixing up the cards and saying the letters. You can ask your friend to help you pronounce the letters and quiz you on your knowledge.

    Make your own videos in English. If you have a video camera, you can tape yourself speaking English and practice along with your own video. {#blank#}3{#/blank#} Watch your videos daily, and repeat what is being said.

    Get a private tutor. A professional English instructor can give you one-on-one instruction that will help you understand the rules of English. Your instructor can teach you how to write and speak English.  {#blank#}4{#/blank#} You can also inquire at your local community college.

    Watch movies with English subtitles. When watching a movie in your native language, use the English subtitles so you will understand the connection between your language and English.

    {#blank#}5{#/blank#} You will make mistakes, and that is OK. You need to practice English as much as possible in order to quickly learn to speak the language fluently.

    Speedy eaters are three times more likely to be too fat, a problem which is made even worse by the popularity of fast food and the decrease of regular dining habits, some Japanese researchers said on Wednesday.

    The findings, published in the British Medical Journal, pay special attention to how eating styles, and not just what or how much is eaten, can affect an obesity epidemic(肥胖流行病) that is becoming more and more severe because of the speed of the Western-style diet in many parts of the world.

    The World Health Organization considers around 400 million people in the world as too fat, 20 million of whom are under the age of five. The researchers are concerned that the condition raises the risk of diseases like type 2 diabetes (糖尿病) and heart problems.

    For their study, Hiroyasu Iso and the team at Osaka University asked more than 3000 Japanese volunteers (志愿者) who are 30 to 69 years old about their eating. About half of the men and a little more than half of the women said they ate until full. About 45 percent of the men and 36 percent of the women said they ate quickly.

    Those who said they ate until full and ate quickly were three times more likely to be fat than people in the “not eating until full and not eating quickly” group, the researchers found.

    They believe that the main causes are both the popularity of eating cheap fast food and bad habits such as watching television while eating.

    To fight against the bad effect of eating quickly and being too full that can lead to obesity, parents should encourage children to eat slowly and in calm environments, the study suggested.

    Every person wants to achieve the goals set at the beginning of a new school year. The following are some ways to help you achieve your goals.

    {#blank#}1{#/blank#}When it comes to choosing your goal, ensure that it states precisely what it is that you want to achieve. Don't generalize. Your goal should involve both what you want to achieve and the effort that you will put in to achieve it. 

    {#blank#}2{#/blank#}Having a copy of your goal makes it real. You can write you goal in a journal you'll be keeping all year, or you can write it on a poster and stick it on your desk so that you can look at it each day. Every time you remind yourself of your goal, you're training your brain to accept the effort needed to make the goal happen.

    Try various methods. One may not work while another may be just right for you. {#blank#}3{#/blank#}Some people learn best through writing, some through listening and reading, and some through talking it through. Once you realize which way works for you, you can work better and achieve your goal easily.

    Think positive. {#blank#}4{#/blank#}Negative thoughts are unhelpful and they became roadblocks. Stop telling yourself you can't and start telling yourself you can, and talk about you are doing rather than hoping you can do something. Always believe that you're capable, even if you have difficulty along the way.

    Reward yourself along the way. {#blank#}5{#/blank#}Occasionally, when you've achieved certain “milestones” in your goal plan, take a break and reward yourself. Watch a movie, visit a friend who lives across town, go to the ice cream shop with your friends or buy yourself something new.

A. Write down your goal.

B. Choose specific and realistic goals

C. Be aware of the way you learn best

D. Remember that everyone makes mistakes

E. Set aside some time each week for exercise

F. All study and no reward can break your spirit

G. If you're not in the right state of mind, you won't be able to succeed.

    Daily overuse of media and technology has a bad effect on the health of all children and teenagers by making them more open to anxiety, and more at risk of future health problems.{#blank#}1{#/blank#} Many newer apps automatically show where the users are when they're used. This can tell anyone out there exactly where to find the person using the app.

    {#blank#}2{#/blank#}They are also upset about their kids spending time on Facebook accounts instead of getting down to their homework assignments, and are afraid of what can come out of their online connections.

    {#blank#}3{#/blank#} One way is to make a “social media agreement” with your kids—a real contract they can sign. In it, they can agree to protect their own privacy, consider their reputation, and not give out personal information.{#blank#}4{#/blank#}

    In turn, parents agree to respect teens' privacy while making an effort to be part of the social media world. Parents also can help kids spend less time on the computer by putting limits on media use.{#blank#}5{#/blank#}Avoid laptops and smartphones in bedrooms, and set some rules on the use of technology. And don't forget that setting a good example through your own virtual behavior can go a long way toward helping your kids use social media safely.

A. Trust their children more.

B. Keep computers in public areas in the house.

C. It's important to be aware of what your kids are doing online.

D. Besides, they promise never to use technology to hurt anyone else.

E. Spending too much time on social media can make kids feel upset, too.

F. Kids also can face the possibility of meeting the wrong person lace to face.

G. Parents often say that kids would rather be online than hang around with them.

    Have you ever kept your eyes groundward while otherwise presenting yourself well at a job interview? People who do often wonder why they fail to get the job despite having made full preparations and taken into consideration every possible interview question. To a large degree, the problem is not about your verbal preparation but rather your body language at an interview, Preparing your body language for an interview is crucial (至关重要的)，because it has various meanings in different cultures.

    And how does the language of gestures vary between Chinese and Western society? Instead of examining the theory, let's focus on handshake, the most practical gesture that easily escapes our attention. Patti Wood once said, “Most of the hiring decisions are made in the first 10 seconds of an interview.” The way you shake the interviewer's hand could create the first impression you make. A weak handshake implies lack of confidence. But is it wise to use a powerful handshake? It depends. This would not be a problem if you were shaking hands with a Westerner as they appreciate a firm handshake. But for Asian people a gentler handshake is better, as an over-powerful grip might seem offensive.

    Hand gestures are another major difference. Western prospective employers are likely to appreciate interviewees who use their hands expressively, and to assume that those who keep their hands hidden are either distrustful or lacking in confidence. The opposite applies in Asia. Be sure, therefore, to keep your hand gestures to a minimum at interviews with local companies in China.

    There are, apart from these two differences, other elements of body language that could ruin your interview wherever you are. You should make eye contact with your interviewer. That doesn't mean you should glare directly into the interviewer's eyes. The best point of focus would be a little lower than the middle point. Secondly, you shouldn't touch your nose, lips or forehead. This tells the interviewer that you are either extremely nervous or lying. Lastly, never jiggle (抖动)your legs or fold your arms. Leg jiggling delivers clearly the message that you feel uneasy and want to escape as quickly as possible. Likewise, crossing your arms implies that you are either defensive or bored.

    A research entitled “Non-Verbal Clues in Job Interviews” found that interviewers spotted a high connection between motivation, social skills and employment. Job seekers hence communicate their motivation and social skills through their body language. This crucial factor determines your fate in any job interview, which is why I cannot overemphasize (过分强调)the significance of body language and gestures. If you now recall your last failed interview, perhaps it is easier to understand why you didn't get the job.