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八年级英语（人教版）下册期末单元复习卷
Unit 5 Looking into Nature
满分：100 分 时间：90 分钟
一、单项选择（共 10 小题，每小题 1 分，满分 10 分）
从 A、B、C、D 四个选项中，选出可以填入空白处的最佳选项。
The scientist ______ to the rainforest three times to study wild animals.
A. has gone B. has been C. went D. goes
— ______ have you been interested in astronomy
— Since I was ten years old.
A. How long B. How often C. How soon D. How far
If we ______ the environment, many animals will lose their homes.
A. protect B. will protect C. don’t protect D. won’t protect
The panda ______ in the zoo since it was born.
A.is living B. lived C. lives D. has lived
— Look at the dark clouds. It ______ rain soon.
— Yes, we’d better go home now.
A. has B. will be C. is going to D. was going to
The number of wild tigers in this area ______ decreasing in recent years.
A. is B. are C. has D. have
This kind of bird ______ only in a small area of southern China.
A. finds B. has found C. is found D. will find
The scientist devoted most of her life to ______ wild animals.
A. protect B. protecting C. protected D. will protect
— Have you ever ______ a bird with your own eyes
— Yes, I saw one in the forest last summer.
A. see B. saw C. seeing D. seen
We should take action to stop people ______ endangered animals.
A. hunting B. to hunt C. hunted D. hunt
二、补全对话（共 5 小题，每小题 2 分，满分 10 分）
从方框中的 6 个句子中选择 5 个正确的选项，补全对话。有一项多余。
A: Hi, Li Ming! 11 ______
B: Yes, I have. I went to Wolong Nature Reserve last year.
A: Really 12 ______
B: I went there with my school science club. We wanted to learn about giant pandas.
A: 13 ______
B: We saw many pandas. Some were eating bamboo, and others were sleeping in the trees.
A: 14 ______
B: We stayed there for three days. It was amazing.
A: 15 ______ I really want to see pandas in the wild.
B: You should go. It’s a once-in-a-lifetime experience!
三、完形填空（共 10 小题，每小题 1 分，满分 10 分）
阅读下面短文，从 A、B、C、D 四个选项中选出最佳选项。
Have you ever seen a firefly (萤火虫) These small insects can produce light. Scientists have been 16 ______ fireflies for many years. They want to know how these insects make light.
Fireflies use their light to 17 ______ with each other. Each species has its own special flash pattern. 18 ______ you watch closely, you can tell different fireflies apart.
In recent years, the number of fireflies has been 19 ______. Why is this happening Light pollution is one of the main 20 ______. Too much artificial light confuses (使困惑) the fireflies. They cannot find 21 ______ to lay eggs.
Scientists have found 22 ______ fireflies in the countryside than in cities. This shows that dark environments are 23 ______ for them.
Many people 24 ______ to protect fireflies. They turn off unnecessary lights at night. They also create special areas for fireflies to live.
If we continue to protect 25 ______ environment, fireflies will still light up our summer nights for years to come.
A. studying B. drawing C. killing D. catching
A. fight B. communicate C. play D. eat
A. Because B. So C. If D. But
A. increasing B. decreasing C. changing D. moving
A. solutions B. results C. problems D. reasons
A. places B. food C. water D. friends
A. fewer B. more C. larger D. smaller
A. harmful B. dangerous C. strange D. important
A. refused B. forgot C. started D. hated
A. his B. our C. her D. their
四、阅读理解（共 15 小题，每小题 1 分，满分 15 分）
A
阅读以上图表信息，判断下列句子正（T）误（F）。
The report data is from 2026.
The number of giant pandas has decreased since 2020.
Mountain gorillas increased by 100 from 2020 to 2026.
South China tigers are in more danger than before.
Yangtze finless porpoises are doing better than giant pandas.
B
In 2026, scientists around the world made some amazing discoveries about nature. Here are three of them.
Discovery 1: A new bird species in Indonesia
Scientists found a new kind of bird on a small island in Indonesia. The bird has bright blue feathers and a long tail. It sings a very special song. “We have never seen this bird before,” said Dr. Sari, a biologist. “This shows there is still so much we don’t know about our planet.”
Discovery 2: Plants can “hear” water
A study from the University of Western Australia found that plants can hear the sound of flowing water. Scientists put pea plants in pots. One pot had a pipe with flowing water inside. The plants grew their roots toward the pipe. “Plants are smarter than we thought,” said one scientist.
Discovery 3: Dolphins call each other by name
Researchers have known for a long time that dolphins are smart. But a new study shows that dolphins call each other by special sounds. Each dolphin has its own “name”. When another dolphin calls its name, it answers. This is similar to how humans use names!
These discoveries remind us that nature is full of wonders. Every year, scientists find new things that change our understanding of the world.
根据短文内容，选择最佳答案。
Where did scientists find the new bird species
A. In Australia. B. In Indonesia. C. In China. D. In America.
What did the pea plants do when they heard flowing water
A. They grew taller. B. They grew more leaves.
C. They stopped growing. D. They grew their roots toward the water.
How do dolphins call each other
A. By making loud noises. B. By jumping out of water.
C. By using special sounds like names. D. By swimming together.
What does the discovery about plants tell us
A. Plants are smarter than we thought. B. Plants are not living things.
C. Plants cannot survive without water. D. Plants only grow in wet places.
What is the main idea of the passage
A. Scientists are working hard to protect nature.
B. Nature is full of wonders and we still have much to learn.
C. Dolphins are the smartest animals in the world.
D. Indonesia has many kinds of birds.
C
Do you love nature Do you want to help scientists make discoveries You can become a citizen scientist (公民科学家). A citizen scientist is an ordinary person who helps collect data for scientific research. Here’s how you can start.
Step 1: Observe the nature around you
You don’t need to go to the rainforest or the deep sea. Start in your own backyard. Watch the birds that visit your garden. Count how many butterflies you see. Take photos of interesting plants. Every observation (观察) is useful.
Step 2: Join a citizen science project
Many websites and apps connect citizen scientists with real research projects. For example, you can help scientists count birds in your area. You can report the weather changes you see. Some projects even use photos taken by ordinary people to track animal movements.
Step 3: Record and share your findings
Write down what you see. Take clear photos. Then share your data on the project’s website. Your small contribution can help scientists understand big problems like climate change and habitat loss.
Real success stories from 2025 show that citizen scientists helped discover two new insect species in China. “Without their help, we might have missed these discoveries,” said Dr. Zhang, a biologist.
So, start observing today. You never know what you might discover!
根据短文内容，回答下列问题。
What is a citizen scientist
__________________________________________
Where can you start observing nature according to the passage
__________________________________________
How can you join a citizen science project
__________________________________________
What success did citizen scientists achieve in China in 2025
__________________________________________
What is the purpose of the passage
__________________________________________
五、任务型阅读（共 5 小题，每小题 2 分，满分 10 分）
阅读下面短文，根据短文内容完成表格（每空不超过 3 个词）。
A 2026 report from the World Wildlife Fund (WWF) compared the conservation status of three endangered animals in China.
Giant Panda
Population in 2010: about 1,600
Population in 2026: about 1,900
Status: No longer endangered
Main reason for improvement: Nature reserves and protection laws
Tibetan Antelope (藏羚羊)
Population in 2010: about 75,000
Population in 2026: about 150,000
Status: No longer endangered
Main reason for improvement: Stopping illegal hunting
Yangtze Finless Porpoise (长江江豚)
Population in 2010: about 2,500
Population in 2026: about 900
Status: Critically endangered (极度濒危)
Main reason for danger: Water pollution and too many ships
Animal Population in 2026 Status Main Problem/Success
Giant Panda about 1,900 No longer endangered Nature reserves and protection 41 ______
Tibetan Antelope about 42 ______ No longer endangered Stopping 43 ______ hunting
Yangtze Finless Porpoise about 900 44 ______ endangered Water pollution and too many 45 ______
六、选词填空（共 10 小题，每小题 1 分，满分 10 分）
用方框中所给单词的适当形式填空，使短文完整、通顺。每个单词限用一次。
My name is Li Hua. I have always loved 46 ______. Last summer, I became a 47 ______ at a wildlife protection center.
My job was to help 48 ______ take care of injured birds. Every day, I cleaned the cages and fed the birds. Some birds were brought in from the 49 ______ with broken wings.
Through this experience, I learned how 50 ______ it is to protect wildlife. I also learned that small actions can make a big difference. For example, we can 51 ______ plastic waste. We can also 52 ______ paper to save trees.
The 53 ______ at the center told me that they had 54 ______ a new bird species in the nearby forest last year. That was exciting news!
I plan to continue my 55 ______ on wildlife protection. I hope to become a biologist one day.
七、语法填空（共 10 小题，每小题 1 分，满分 10 分）
阅读下面短文，在空白处填入一个适当的单词或用括号内所给单词的正确形式填空。
My name is Zhang Wei. I 56 ______ (be) interested in nature since I was a child. Last year, I 57 ______ (join) a nature club at school.
We 58 ______ (visit) the forest near our town several times. Each time, we record the different animals and plants we see. So far, we 59 ______ (find) over 50 kinds of birds.
Last month, we saw a bird. We 60 ______ (not see) this kind before. It had bright red feathers. We took a photo and showed it to a biologist. He told us it was a rare species.
If we continue to protect the forest, more animals 61 ______ (come) to live here. Our teacher often tells us, “The more you learn about nature, the 62 ______ (much) you will love it.”
I have already 63 ______ (decide) to become a biologist when I grow up. I want 64 ______ (study) animals and help protect them. I believe that everyone can do something 65 ______ (save) our planet.
八、书面表达（满分 15 分）
假设你是李华，你的英国笔友 Tom 给你发来邮件，询问你所在地区的一种野生动物及其保护情况。请你回复邮件，介绍一种你熟悉的野生动物。
要求：
介绍这种动物的名称和基本特征；
描述它的生存现状（数量变化、面临的问题）；
说明人们为保护它所做的努力；
词数：80-100 词。
参考答案
一、单项选择
题号 1 2 3 4 5 6 7 8 9 10
答案 B A C D C A C B D A
二、补全对话
题号 11 12 13 14 15
答案 D F B A E
（C 为多余选项）
三、完形填空
题号 16 17 18 19 20 21 22 23 24 25
答案 A B C B D A B D C B
四、阅读理解
A 篇
题号 26 27 28 29 30
答案 T F T T F
B 篇
题号 31 32 33 34 35
答案 B D C A B
C 篇
An ordinary person who helps collect data for scientific research.
In your own backyard.
By using websites and apps that connect with research projects.
They helped discover two new insect species.
To encourage people to be citizen scientists.
五、任务型阅读
题号 41 42 43 44 45
答案 laws 150,000 illegal Critically ships
六、选词填空
题号 46 47 48 49 50
答案 nature volunteer scientists wild important
题号 51 52 53 54 55
答案 reduce recycle scientists discovered research
七、语法填空
题号 56 57 58 59 60
答案 have been joined have visited have found hadn't seen
题号 61 62 63 64 65
答案 will come more decided to study to save
八、书面表达
参考范文：
Dear Tom,
Thank you for your email. I’d like to tell you about a special animal in my country — the giant panda.
Giant pandas have black and white fur. They live in the forests of central China. They spend most of their time eating bamboo.
Thanks to protection efforts, the number of pandas has increased from 1,600 in 2010 to about 1,900 in 2026. They are no longer endangered. People have built nature reserves and stopped hunting.
However, we still need to protect their forests. Every small action helps.
Have you seen a panda before Please write to me.
Yours,
Li Hua
高分句式：
I’d like to tell you about...
They live in / have / spend...
Thanks to protection efforts, the number has increased...
They are no longer endangered.
People have built... and stopped...
However, we still need to...
Every small action helps.
Have you seen... before

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