Ⅴ. (2026徐州十三中月考)任务型阅读(主题:人与自然·生态特征)
A forest is like a football group. It sounds unusual, but it's true. Each player does an important job, but they can't win by themselves, so they work together. The same is true of all plants and animals in a forest. They depend on each other to live. We call this an ecosystem.
There are three jobs in an ecosystem: the producer, the consumer and the decomposer. The trees in the forest produce food by themselves. Giraffes themselves can't make their own food, so they consume or eat the trees' leaves. But sometimes hungry lions or other animals eat giraffes. When animals die, their bodies become part of the soil and air to help the forest grow. So the ecosystem can keep on going.
Ecosystems come in lots of kinds and sizes. A backyard or even a big sea can be an ecosystem. The key thing is that an ecosystem has to be balanced. If there weren't animals to eat giraffes, giraffes would eat too many leaves. This wouldn't be good for the trees, and this would make it difficult for giraffes to find food. Different weather and natural disasters can change ecosystems. Human activities like cutting down trees and hunting can also bring problems.
Ecosystems are everywhere. They play an important role in our life. It is necessary for us to do what we can to keep them working well.
根据上面短文内容,回答下列问题(每小题答案不超过9个单词)。
21. How many jobs are there in an ecosystem?
There are three/3 jobs in an ecosystem.
22. If the crane lives mainly on small animals, what is it in an ecosystem according to Paragraph 2?
A consumer.
23. What's the most important thing in an ecosystem?
An ecosystem has to be balanced.
24. What may cause an ecosystem to change?
Different weather, natural disasters and human activities.
25. What is necessary for us to do to help protect ecosystems?
Do what we can to keep them working well.
