Trees are one of the oldest " citizens (公民) " of our Earth. They keep our air clean, reduce noise pollution, improve water quality and provide food and building materials.

    Just like us, trees change a lot as they grow. At 1 to 3 years old, young trees learn how to protect themselves. For example, many trees grow thorns( 刺) to warn animals not to go near. Most young trees have large, deep green leaves so that they can catch enough sunlight and change it into their food and energy.

    When trees are 4 years old, they begin to grow very rapidly and become strong enough to face challenges later in life. At the age of 15, trees become young adults. They grow more slowly and begin to produce flowers and fruit.

    It is not until the tree is 20 to 25 years old that it becomes a real adult. The tree reaches its largest size. The adult tree gives us shade, oxygen and natural beauty; it is also a great place for a tree house, or a place for us to read a book, listen to music and so on. If we give the adult tree proper care, it will go on to live healthily for many years.

    Gradually, trees begin to grow older and older and even die. At this time, they still have their important place in nature. When a tree becomes hollow (空心的) or part of it becomes dead, it provides a home to small animals and is a source of food for many other animals.

    In many ways, the life of a tree is similar to our own life experience. When we are looking at the life of a tree, we learn about that each period of life brings its own form of joy and challenge.

    Enjoy every minute of the life of the trees and take care of the trees!

    Have you ever paid attention to the Air Quality Index (空气质量指标) or AQI reported in the newspaper? The AQI helps us understand what the air quality around us means to our health. The AQI uses colors, numbers and words to tell us about the air. Let's see what these colors and numbers mean.

    Some people wonder why countries spend millions of dollars on space projects. They want to know how space research helps people on Earth. Actually, space technology helps people on Earth every day. This is called "spinoff technology". Spinoff technology is space technology that is now used on Earth.

    In early space programs, such as the Apollo missions(任务) of the 1960s and 1970s, and in the space shuttle missions today, scientists developed objects for the astronauts to use on the moon and in space. We now use some of these objects every day. For example, we have Quartz clocks and watches with an accuracy of one minute a year. We purify the water we drink with a water filter(过滤器) designed for the astronauts' use in space. The cordless, hand-held tools we use in our homes, such as cleaners, flashlights, drills, and irons came from the technology of these early space programs.

    On cold winter days, we can stay warm with battery - operated shoes and socks, and insulated(绝缘的) coats and jackets. All of these clothes are similar to the spacesuit designs that keep astronauts comfortable in the temperatures of the moon, and are spinoffs from space technology.

    These products are only a few examples of the many ways space technology helps us in our everyday life. No one knows how new spinoff technology from the International Space Station will help us in the future.

Hello, everyone!

……

This is a nice room. I like my room very much.

注意：（1）可在思维导图内容提示的基础上适当拓展信息。（2）不能照抄原文；不得在作文中出现真实校名、地名和考生的真实姓名。（3）语句连贯，词数80左右。作文的标题和开头已经给出，不计入总词数。

Self﹣Management

By Li Ming

I am glad to share my ideas of self﹣management. 

People usually eat traditional food on special festivals. A special day in China is the Laba Festival. This festival falls on the eighth day of the 12th lunar month. On that day, people souse(腌) Laba garlic(蒜) . Here is one way to make it.

First, p{#blank#}1{#/blank#} the garlic and put it into a clean bottle.

Then, a{#blank#}2{#/blank#} some salt and sugar. M{#blank#}3{#/blank#} them together and so use for 30 minutes.

Next, cook some rice vinegar for 5 minutes and p{#blank#}4{#/blank#} the rice vinegar into the bottle of garlic.

When it is r{#blank#}5{#/blank#}, seal (密封) the bottle. The garlic will turn green in about 5 days.

Now, you can enjoy it with other food, such as dumplings and noodles.