Question

    Trees are one of the oldest “citizens” 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 grow up safely. For example, many trees grow thorns 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 or part of it becomes dead, it provides a home for 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 that each period of life brings its own form of joy and challenge. Enjoy every minute of the life of the trees and look after the trees!

The   ①  of a Tree

Something useful	Improve the environment and offer   ②  and materials for building.
Changes as they   ③	1 – 3 years old	Learn ways to grow up   ④  .	Grow thorns to warn animals.
Catch enough sunlight with large green leaves.
4 years old	Grow quickly and become   ⑤  .
⑥  years old	Grow slowly and produce flowers and fruit.
20 -25 years old	Become real   ⑦  .	Give people a lot such as oxygen and good places to relax.
Live longer if people take   ⑧  of them properly.
Grow older or die	Be still   ⑨  in nature.
Conclusion	A tree's life is the   ⑩  as our life experience in many ways.

1.①________

2.②________

3.③________

4.④________

5.⑤________

6.⑥________

7.⑦________

8.⑧________

9.⑨________

10.⑩________

Answer

1.life

2.food

3.grow

4.safely

5.strong

6.15

7.adults

8.care

9.important

10.same

【解析】

本文介绍的是树木的从小到大的生长过程以及对人类的贡献，如：提供氧气、阴凉、改善水的质量，提供建筑的材料等；当树木空心快要死亡时，也为小动物提供居住场所和食物。享受与树木的每一分钟并爱护树木。

1.

根据文章的大体内容，主要讲述的是树木从小到大的成长及对人类的贡献，讲述的树的一生“life”，故答案为life。

2.

根据“They keep our air clean, reduce noise pollution, improve water quality and provide food and building materials.它们保持我们的空气清洁，减少噪音污染，改善水质，并提供食物和建筑材料。”可知应该是“提供食物”，故答案为food。

3.

根据“Just like us, trees change a lot as they grow. 就像我们一样，树木在成长过程中变化很大。”可知应该是“成长grow”，故答案为grow。

4.

根据“At 1 to 3 years old, young trees learn how to grow up safely. 在1到3岁的时候，小树就会学会如何安全地成长。”可知是副词“safely安全地”修饰动词短语grow up，故答案为safely。

5.

根据“When trees are 4 years old, they begin to grow very rapidly and become strong enough to face challenges later in life.当树木长到4岁时，它们开始生长得非常快，变得足够强壮，可以在以后的生活中面对挑战。”可知应该是变得强壮“strong”，故答案为strong。

6.

根据“At the age of 15, trees become young adults. They grow more slowly and begin to produce flowers and fruit.到了15岁，树木就变成了年轻的成年人。它们生长较慢，开始开花结果。”，可知是15岁，故答案为15。

7.

根据“It is not until the tree is 20 to 25 years old that it becomes a real adult直到这棵树长到20到25岁，它才会成为真正的成年人。”，可知是成为真正的成年人“adult”，故答案为adults。

8.

根据“If we give the adult tree proper care, it will go on to live healthily for many years. 如果我们给成年树适当的照顾，它就会健康地生活很多年。”，可知是照顾“take care of”成年树木，故答案为care。

9.

根据“Gradually, trees begin to grow older and older and even die. At this time, they still have their important place in nature. 渐渐地，树木开始变得越来越老，甚至死亡。此时，它们在自然界中仍占有重要地位。”，可知是重要的“important”，故答案为important。

10.

根据“In many ways, the life of a tree is similar to our own life experience. 在许多方面，树的生活与我们自己的生活经历相似。”，be similar to类似于，观察表格中这里用的是“the same as与……相同”，故答案为same。