Trees are one of the oldest"citizens（公民）"of our Earth.They clean our air，reduce noise pollution，improve water quality and provide food and building materials.
Just like us，trees change a lot as they grow.From I 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.
| Do you know？ What's the date today？ It's March 12th. What day is it today？ It's Tree Planting Day.  |
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，and 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 will have their important place in nature.When a tree becomes hollow（空心的） or part of it becomes dead，it provides a home for small 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 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!
（1）Why do most young trees have large，deep green leaves？
Because they can catch enough sunlight and change it into their food and energy.
Because they can catch enough sunlight and change it into their food and energy.
（2）When is Tree Planting Day？
It's March 12th.
It's March 12th.
（3）What can a tree be used as when it becomes hollow？
It is used as a home for small animals.
It is used as a home for small animals.
（4）Why should we enjoy every minute of our own life according to the passage？
Because each period of life brings its own form of joy and challenge.
Because each period of life brings its own form of joy and challenge.
（5）If you see someone cut down trees，what should you do？Why？（開放題）
I will stop them because trees are good for protecting the environment.
I will stop them because trees are good for protecting the environment.
【考點(diǎn)】說明文；動(dòng)物/植物．
【答案】Because they can catch enough sunlight and change it into their food and energy.；It's March 12th.；It is used as a home for small animals.；Because each period of life brings its own form of joy and challenge.；I will stop them because trees are good for protecting the environment.
【解答】
【點(diǎn)評(píng)】
聲明：本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有，未經(jīng)書面同意，不得復(fù)制發(fā)布。
發(fā)布：2024/6/4 8:0:5組卷：3引用：1難度：0.5
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