2026年自主高效练八年级英语下册外研版评议教辅第38页答案
一、单词拼写
1. What's the connection between the behaviour of birds and
dinosaurs
(恐龙)?
2. The
effort
(努力) of the explorers helped us learn about the deep sea.
3. International
cooperation
(合作) is important for space research.
4. Through our new microscope, we could
clearly
(清楚地) see the tiny cells in a leaf.

答案

1. dinosaurs 2. effort 3. cooperation
4. clearly

解析

【分析】本题为单词拼写题,需结合句子语境判断所缺单词的词性,再根据中文提示写出正确的英文单词,同时注意名词单复数、副词修饰动词等语法细节。
【解析】1. 句意为“鸟的行为和恐龙之间的联系是什么”,“恐龙”是可数名词,此处表类别,用复数形式dinosaurs;2. 句意为“探险家的努力帮助我们了解深海”,“努力”是名词,填effort;3. 句意为“国际合作对太空研究很重要”,“合作”是名词,填cooperation;4. 句意为“通过新显微镜,我们能清楚看到叶子里的微小细胞”,此处修饰动词see,需用副词,“清楚地”对应clearly。
【答案】1. dinosaurs 2. effort 3. cooperation 4. clearly
【知识点】单词拼写、名词用法、副词用法
【点评】本题考查基础核心词汇的拼写及词性运用,难度不大,侧重学生对常用词汇的掌握,需注意词性和名词单复数的正确使用。
【难度系数】0.6
二、语法填空迁移练
5. Marco Polo's
exploration
(explore) of Asia introduced Europeans to many new things.
6. The disappearance of some ancient cities is a(n)
unsolved
(solve) puzzle.
7. This
poster
(poster) shows the beautiful lakes and mountains of Guilin.
8. We feel like
learning
(learn) more about the earth.

答案

5. exploration 6. unsolved 7. poster 8. learning

解析

【分析】
本题为英语语法填空题,需结合句子结构、固定搭配及词类转换规则逐一分析:第5题空格前是名词所有格,需使用explore的名词形式;第6题空格修饰名词puzzle,需使用solve的否定形容词;第7题空格前有指示代词this,需使用名词单数形式;第8题考查固定搭配,需使用动名词形式。
【解析】
5. 名词所有格Marco Polo's后需接名词,explore的名词形式为exploration,故填exploration。
6. 空格修饰名词puzzle,根据句意“一些古城的消失是一个未解决的谜题”,需使用solve的否定形容词unsolved,故填unsolved。
7. 指示代词this后接单数名词,poster本身为可数名词单数,无需变形,故填poster。
8. 固定搭配feel like doing sth.意为“想要做某事”,此处需使用learn的动名词形式learning,故填learning。
【答案】
5. exploration 6. unsolved 7. poster 8. learning
【知识点】
词性转换、固定搭配、形容词用法
【点评】
本题考查英语基础语法中的词形变化、固定搭配及词类修饰规则,属于难度较低的基础题型,学生掌握核心知识点即可轻松解答。
【难度系数】
0.8
三、根据句意,在空白处填入一个适当的词
9. We should learn from the spirit
of
ancient sailors.
10. I will ask my teacher
for
a map of the national park.
11. The organisation calls
on
volunteers to plant more trees.

答案

9. of 10. for 11. on

解析

【分析】
本题考查英语中介词的用法,需结合句意和固定搭配确定介词。第9题需表达“古代水手的精神”的所属关系;第10题涉及“向某人索要某物”的固定短语;第11题涉及“号召某人做某事”的固定短语,根据这些逻辑和搭配即可填空。
【解析】
9. 句意:我们应该学习古代水手的精神。此处表示所属关系,用介词of,构成“the spirit of...”(……的精神)。
10. 句意:我会向我的老师要一张国家公园的地图。固定搭配“ask sb for sth”意为“向某人索要某物”,故填介词for。
11. 句意:这个组织号召志愿者种更多树。固定搭配“call on sb to do sth”意为“号召某人做某事”,故填介词on。
【答案】
9. of 10. for 11. on
【知识点】
介词的固定搭配、介词的所属用法
【点评】
本题为基础介词填空题,考查常见介词短语的固定搭配及介词的基本用法,难度较低,牢记相关搭配即可轻松解答。
【难度系数】
0.3
四、根据英文释义,在空白处填入一个适当的词
12. Good
cooperation
helped the team explore the forest safely. (working together to do something)
13. With much
effort
, we can help save the endangered animals. (hard work or trying very hard)
14. The
discovery
of a new star is always big news. (the act of finding something that was hidden or unknown)

答案

12. cooperation 13. effort 14. discovery

解析

【分析】
解题思路:先明确每道题括号内的英文释义,结合句子空格前的修饰词(Good、much、the)判断需填词性(均为名词),再匹配对应释义的正确名词即可。
12题释义为“共同协作完成某事”,对应名词“合作”;13题释义为“艰苦工作或努力尝试”,对应名词“努力”;14题释义为“发现隐藏或未知事物的行为”,对应名词“发现”。
【解析】
12. 括号内释义为“working together to do something(共同协作)”,空格前是形容词Good,需填名词,故填cooperation;
13. 括号内释义为“hard work or trying very hard(努力)”,空格前是修饰不可数名词的much,故填不可数名词effort;
14. 括号内释义为“the act of finding something that was hidden or unknown(发现的行为)”,空格前是定冠词the,需填名词,故填discovery。
【答案】
12. cooperation 13. effort 14. discovery
【知识点】
根据英文释义填名词、名词词义辨析
【点评】
本题考查基础名词的词义理解与运用,侧重常用词汇的积累,属于英语基础题型,难度适中。
【难度系数】
0.4
五、根据背景材料,完成下列任务
Last August, a new kind of plant was found growing between rocks in the wet forests. It had white flowers and was different from any known plant. Scientists later confirmed it was a completely new type.
The discovery was made by Wu Xuexue, a young scientist from the Chinese Academy of Sciences. The wet forests are good places for nature research. China has set up lots of nature reserves and a gene bank to protect plants and animals.
The plant was found growing on a damp rock. Though it looked ordinary, Wu knew it was special. Her teacher, Expert Wang Qiang, agreed when he saw the photos. After study, they confirmed it was new.
Working in the wet forests is hard. There are heavy rains, landslides, and many leeches. Once, Wu's team had to leave their car after a mudslide and walk 5 kilometres. They joked that leeches were the "real guardians" of the forests.
Local villagers and drivers help the scientists a lot. The government also gives them permission to work in these areas. Finding this new plant is important. Wu says each new plant reminds us to protect them from climate change and human activities. Her work helps China protect its natural treasures and inspires young people to care for the environment.
任务一:根据文章内容,选择最佳选项。
(
B
)15. Why does the author mention "leeches" in the passage?
A. To show they are useful for research.
B. To describe the difficult working conditions.
C. To explain how they protect the forests.
D. To suggest a new kind of animal study.
(
C
)16. Which of the following best describes Wu Xuexue's work according to the passage?
A. Mainly taking photos of beautiful flowers.
B. Studying plants in a comfortable lab.
C. Difficult but important scientific exploration.
D. Teaching local villagers about plants.
任务二:根据文章内容,完成句子。
17. The plant was growing on a
damp
rock.
18. Scientists joked that
leeches
were the "real guardians" of the forests.
任务三:根据文章内容,回答下列问题。
19. Why is finding new plants important? (Answer within 15 words)
It reminds us to protect them from climate change and human activities.

答案

15.B 16.C
17. damp 18. leeches
19. It reminds us to protect them from climate change and human activities.

解析

【分析】
本题为英语阅读理解题,分三个任务考查对文章的理解:1.任务一的15题是细节理解题,需定位原文找作者提及leeches的原因;16题是推理判断题,需结合原文描述判断Wu工作的特点。2.任务二为细节填空题,直接查找原文对应信息即可。3.任务三为简答题,需定位原文关于新植物重要性的表述,控制字数作答。
【解析】
15题:定位原文第四段,前文提到在湿森林工作困难(有暴雨、滑坡等),作者用leeches举例说明工作条件艰苦,对应选项B。
16题:原文提到Wu的工作环境有诸多困难,但发现新植物意义重大,对应选项C。
17题:定位原文第三段第一句“The plant was found growing on a damp rock”,直接提取形容词damp。
18题:定位原文第四段最后一句“They joked that leeches were the 'real guardians' of the forests”,提取名词leeches。
19题:定位原文第五段Wu的表述,提取核心内容,控制在15词内,得到答案。
【答案】
15.B 16.C;17.damp;18.leeches;19.It reminds us to protect them from climate change and human activities.
【知识点】
英语阅读理解细节理解、英语阅读理解推理判断、英语根据原文填空
【点评】
本题围绕新植物发现的英文短文设置题型,侧重考查学生对文章细节信息的提取与理解,题型基础,适合巩固英语阅读基础能力。
【难度系数】
0.6