A
Forests are the lungs of our planet. They help clean the air, give homes to animals, and provide us with wood, fruit, and medicine. But in many places, forests are getting smaller and smaller. This is a very serious problem because forests are importaint to us.
Why do we need forests?
Forests are in many places on Earth. They take in bad air and give us good air to breathe. They also help keep the soil safe when it rains, and they help make the weather nice. Without forests, many animals will have no home, and the weather can get very bad.
Why are forests getting smaller?
People cut down trees to build houses, make farms, or make new roads.

Sometimes, there are also big fires in forests when the weather is too dry. If this does not stop, we will not have many forests later.
What can we do?
Many countries are making rules to keep forests safe. Students can help too. They can use less paper, plant trees, or tell their friends why forests are good for us.
Remember: Forests are not just a lot of trees. They are important to animals and us. If we take care of forests, we take care of our future.
()1. What is this passage mainly about?
A. How to plant trees in the forests.
B. Forests are the lungs of our planet.
C. Why forests are important and how to help them.
()2. What does the underlined phrase "take in" mean?
A. 吸收 B. 释放 C. 带走
()3. Which of the following do forests provide for people?
A. New houses and new roads
B. Fresh air and useful things like medicine.
C. Help clean the air and give homes to every animal.
()4. How can students help forests?
A. By visiting more farms.
B. By talking with their friends.
C. By using less paper and planting trees.
()5. What can we learn from the underlined sentence in the last paragraph?
A. Our future will be the same as forests.
B. We can only take care of forests in the future.
C. Forests are very important to our future life.
B

1.C 2.A 3.B 4.C 5.C

1. 文章分别阐述了森林对人类和动物的重要性、森林面积不断缩小的原因，以及保护森林的可行方法，对应选项C；A选项“如何在森林里种树”文中未重点提及，B选项“森林是地球之肺”只是文章开篇的引入表述，并非全文主旨。
2. 根据划线短语所在句“They take in bad air and give us good air to breathe”，森林把不好的空气留存、转化为可供呼吸的好空气，由此可推断take in的含义是“吸收”，选A。
3. 原文第一段提到森林可以净化空气，还能为人类提供木材、水果、药物等物资，第二段说明森林能产出供人呼吸的新鲜空气；A选项的新房、新路是人类砍伐树木后建造的，并非森林直接提供；C选项中“给每一种动物提供家园”表述错误，原文是给很多动物提供栖息地，因此选B。
4. 在“What can we do?”部分明确提到学生可以通过少用纸、种树，或者向朋友科普森林的益处来帮助保护森林，对应C选项。
5. 最后一句“If we take care of forests, we take care of our future”的含义是：我们保护森林，就是在守护自己的未来，说明森林对我们未来的生活至关重要，A、B两个选项的表述都不符合原文逻辑，因此选C。