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

    {#blank#}1{#/blank#} . One of the best things you can possibly do is to start you own club. It's great fun especially if you are the sort of person who feels there's never anything to do during the school holidays.

    The first thing you need to come up with is an idea for your club. {#blank#}2{#/blank#}. Pets, clothes, pop music or dancing groups, sports, making things? The list is endless.

    Next you need some friends to be in your club with you. {#blank#}3{#/blank#}. All you need is three or four other people who are interested in the same thing as you.

    {#blank#}4{#/blank#} .You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That'll keep you busy for ages.

    At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret!

    Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them. {#blank#}5{#/blank#} . Why not leave some space for a photo of yourself? That will make the membership card really look like it.

    So there you are, get clubbing! Once you get started you'll think of loads of more interesting things to do!

A. That's easy.

B. Enjoy your own club!

C. Invite a designer to join you.

D .What are you interest in?

E. Some vacation is just around the corner.(即将来临)

F. Then you need to pick a name for your club.

G. Use a bright thick pen to make a special design.

Four simple ways to stay positive

    Trying to stay positive, both in good times and bad, is a great way to improve your quality of life. Try these four methods on a daily basis.

1）. Don't think a lot about negativity.

    Of course. Staying positive 24 hours a day, seven days a week is a bit difficult. Letting things get to you is normal, and it's actually healthy to cry or express frustrations once in a while.

    It's when those negative moments control your life that your emotional balance is at risk. {#blank#}1{#/blank#} However, don't give that sadness another second in your day.

2）. {#blank#}2{#/blank#}

    What you put into your body directly affects how you feel on the outside. Fill yourself with good, healthy foods like fruits and vegetables and limit snacking. Exercise is equally of great importance. Take a few days out of your week for at least half an hour of activity, and try to stick to it. {#blank#}3{#/blank#}

3）. Be kind to others.

    {#blank#}4{#/blank#} Making someone's day a bit brighter not only puts a smile on his or her face, but also yours as well. Remember to smile and treat each person with pity and respect. Good deeds are contagious（传染的）, and your positive attitude may spread among others.

4）. Take it one day at a time.

    Being positive isn't an instant thing. It's a steady effort that we follow every hour of every day. {#blank#}5{#/blank#} Instead, focus on living at the moment and doing what you can to make each moment better.

A.Eat healthy and stay fit.

B.Take your lunch breaks outside.

C.Don't worry about what the future may bring.

D.Gratefulness helps you appreciate life in bad times.

E.Good feelings come from acts of kindness and selflessness.

F.Take a few minutes to feel sad and accept what happened.

G.Even going outside for a walk and enjoying the sunshine improves your mood.

    In the latest romance-drama, Descendants of the Sun (《太阳的后裔》), a handsome soldier Yoo Shi-jin(柳时镇) (Song Joong-ki)(宋仲基) meets the pretty doctor Kang Mo-yeon(姜暮烟) (Song Hye-kyo)(宋慧乔) in a hospital, and he doesn't hesitate to hit on her.

    The dialogue, which takes place early in the first episode(集), immediately indicates that this is no ordinary South Korean drama. There's no family feud (不睦), or love tangles, or guesses and misunderstandings. The 16-episode show is set in the fictional war-torn country of Uruk(乌鲁克). Song Joong-ki is the leader of a special warfare command unit, while Song Hye-kyo plays a doctor who works for a humanitarian medical organization. Both are sent in the midst of disaster and disease as part of their work with UN peacekeeping troops. Both know and show clearly what they want and what they hate.

    But what stands out the most are Song's skills as a pick-up artist(撩妹技能).

    Boldness and creativity are the key weapons in his arsenal. When Kang invites Yoo to drink wine with her, Yoo, who is not allowed to drink alcohol as a soldier, says, ＂There is a way.＂ before kissing her. Forget about the ＂eighth-episode rule＂ . This kiss happens in the fourth.

    Humor also does the trick. On their first date in a cinema, Yoo says, ＂This is the most exciting moment of my life. The moment I am with a beautiful woman before the theater lights go out.＂ When Kang tries to give Yoo a hard time, Yoo jokes, ＂I mistook you for a beautiful woman because it's dark.＂

    And actor Song Joong-ki, who just came back from two years of military service last May, makes sure he delivers his pick-up lines just right.

    ＂In Deep Rooted Tree (《树大根深》) and The Innocent Man (《善良的男人》), he [Song Joong-ki] showed he had the steel to play fearless and heartless men — that he could be taken seriously as an actor, despite his pretty face. In Descendants, he hits the emotional core of every scene, whether he has to be bold and amorous, guarded and mysterious, or sad,＂said critic Foong Woei Wan in The Straits Times.

    What do you use to unlock your cellphone? A password? A fingerprint? Or simply a glance?

    On September 12, 2017, Apple introduced its iPhone X, which has an eye-catching feature—Face ID.

    With Face ID, Apple says, you can unlock your new iPhone by just looking at it. It is powered by a so-called TrueDepth camera system built into the front of the iPhone X.

    When the camera system sees a person's face, it uses 30,000 unseen dots to “map” the shape and outline of the face. A mathematical model of the face will then be created and stored in the phone.

    The next time the person looks at the iPhone X, the same dots are mapped onto his or her face and compared to the stored model. If the two match, then the phone unlocks. This happens in less than a second.

    Apple says the system is smart. If you change your hairstyle, put on sunglasses or makeup, or use the phone in the dark, Face ID still works.

    Although the technology sounds fancy, there are still concerns. For example, will Face ID work for twins?

    According to Apple, the chance of others to unlock your iPhone X using Face ID is one in a million. Face ID can tell the difference between twins, but the error rating（出错率）rises. So one would need to set a password then.

    Apple also emphasizes that Face ID only unlocks when you stare at it. It is what Apple calls “attention aware”. So the phone won't unlock if you are just glancing at the phone for the time. It won't work either if someone puts the phone at your sleeping face or your photo.

    Travelling to China is like travelling to another world. Its many famous beautiful places will make you lose yourself in them. However, it is usually not enough for a traveller only to visit these nice places. If you have time to see the local people, talk with them and even have dinner with a local family, it would be a wonderful experience, to know more about the local people's life style at home in China.

    New Hope Travel Agency will arrange (安排) a family visit to Xi'an, an ancient historic city in China. We especially have chosen typical local families to host this activity in which you can see the true living style of Chinese people. Most of the hosts retired (退休) at home, so they are happy to see visitors from different countries to come to their homes.

    Not only can we arrange to visit the local family but we can arrange to taste the true home cooked dishes. Our tour guide will ask you for advice about the food you want to eat. Just enjoy the locally cooked dishes. It'll be quite a different and exciting experience.

    Our agency also provides a good opportunity for you to learn to cook Chinese food. We have a general cooking class in the local family. If you'd like to learn to cook one or two Chinese dishes, please go to our Chinese Food Cooking Class to choose your favorite dishes.

    Don't wait. Welcome to China.