2026年实验班提优训练八年级英语上册译林版第131页答案
Ⅵ.(2026·徐州第十三中学阶段检测)阅读表达
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: producer, consumer and 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 the ecosystems. Human activities like cutting down the 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.
注:每题答案不超过9个单词。
1. How many jobs are there in an ecosystem?
There are three jobs in an ecosystem. /Three. /Three jobs.

2. If the crane lives mainly on small animals, what is it in an ecosystem according to Paragraph 2?
A consumer.

3. What's the most important thing in an ecosystem?
An ecosystem has to be balanced.

4. What may cause an ecosystem to change?
Different weather, natural disasters and human activities.

5. 新考法 开放式谈做法 What can we do to help protect the ecosystem?
Do what we can to keep them working well. (开放性试题,言之有理即可)

答案

Ⅵ.[文章大意]本文是一篇说明文,主要介绍了生态系统中的三种角色:生产者、消费者和分解者。生态系统无处不在,并且重要,我们必须尽我们所能保持生态系统正常运转。
1. There are three jobs in an ecosystem. /Three. /Three jobs.
2. A consumer.
3. An ecosystem has to be balanced.
4. Different weather, natural disasters and human activities.
5. Do what we can to keep them working well. (开放性试题,言之有理即可)

解析

【分析】
这是一篇科普类阅读表达题,解题思路如下:首先通读全文掌握生态系统相关核心概念,明确题干要求每题答案不超过9个单词;之后针对每个题干的关键词,返回原文精准定位对应段落,提取匹配的有效信息;最后开放性题目结合生态保护常识,给出符合字数要求的合理表述即可。
【解析】
1. 定位到原文第二段第一句"There are three jobs in an ecosystem: producer, consumer and decomposer.",可直接得出生态系统共有3类角色,精简表述符合字数要求即可。
2. 根据第二段内容,消费者无法自行生产食物,需要通过食用其他生物获取能量,鹤以小动物为食完全符合消费者的定义,因此可得出对应答案。
3. 定位到原文第三段第三句"The key thing is that an ecosystem has to be balanced.",句中key thing对应题干的most important thing,直接提取核心内容即可。
4. 定位到原文第三段末尾两句,原文明确提到不同天气、自然灾害、人类活动都会改变生态系统,整合三类要素即可得到答案。
5. 本题为开放性试题,只要表述的是有利于保护生态系统的合理做法,且单词数不超过9即可,言之有理都可得分。
【答案】
1. There are three jobs in an ecosystem. /Three. /Three jobs.
2. A consumer.
3. An ecosystem has to be balanced.
4. Different weather, natural disasters and human activities.
5. Do what we can to keep them working well. (开放性试题,言之有理即可)
【知识点】
阅读细节定位,生态系统组成,生态保护常识
【点评】
本题结合生态科普知识考查阅读理解能力,多数题目可通过原文直接定位得到答案,开放题引导学生建立生态保护意识,答题时需注意严格遵守答案不超过9个单词的要求,避免冗余表述。
【难度系数】
0.7