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

    Just like us, trees change a lot as they grow.At one to three 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.

    当小树成长到四年的时候,它们成长可是加速并且进一步强壮,以足以面对未来生命中的挑战At the age of l5,trees become young adults.They grow more slowly and begin to produce flowers and fruit.

    It is not until山e tree is 20 to 25 years old that it becomes a real adult. The tree reaches its 1argest.Not only does the adult tree give us shade,oxygen(氧气)and natural beauty;it is also a great place for a tree house,or a place for us to nap,read a book,listen to music or sip(小口喝)tea.If we give the adult tree proper care,it will continue to live healthily for many years.

    Gradually(渐渐地),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(相似的)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!

A.根据短文内容回答下列问题。

1.How do young trees protect themselves? And why do they have large,deep green leaves?

2.Why should we enjoy every minute of our own life?

B.

3.将文中的划线汉语句子翻译成英语。(一空一词)

When trees are 4 years old,they begin to grow very rapidly and become                to face challenges later in life.

4.将文中的划线英语句子翻译成汉语。

C.

5.根据短文内容,写出能概括全文大意的句子。

A woman was collecting money for a church charity.The money she collected was going to be given to poor children who had no parents to take care of them.She went from apartment to apartment and from house to house.She knocked on doors and asked for money.She always said the same thing.“Good morning,I'm collecting for a church charity.Please give generously.We need $5,000.” Then she held out a collecting box.Most people put a few coins in the box.

An artist lived in one of the apartments.He opened the door.“Good morning.”she said.“I’m collecting for a church charity.Please give generously.We need $5,000.” The artist thought for a moment,then he said,“I'm sorry,but I don’t have any money.However, I'll give you a painting.It's worth $400.” The woman thanked the artist and took the painting away.

A week later she called on him again.“I'm sorry to trouble you again,” she said,“but we still need more money.I need another $100.Can you help?” “Of course,” the artist said.“I’ll increase the value of my painting to$500.”

1.Who was the woman collecting money for?

A.Poor children.     B.Herself.                C.Her friends.          D.A church.

2.What did most people give her?

A.A lot of money.                                       B.A few dollars.

C.Paintings.                                                D.Very little money.

3.Why didn’t the artist give money to her?

A.He was not a generous man.

B.He did not have any money.

C.He had too many paintings.

D.His paintings were worth a lot of money.

4.Did the woman collect enough money at last?

A.No,she didn't.                                      B.Yes,she did.

C.We don't know.                                       D.Yes,she does.

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