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/ 让学习更有效 单元培优卷 | 英语学科
/ 让学习更有效 单元培优卷 | 英语学科
2025-2026学年八年级英语下册沪教版（2024）单元素养评价培优卷
Unit 5 Saving animals in danger
温馨提示：
1.本试卷分第Ⅰ卷和第Ⅱ卷两部分。满分120分。考试用时90分钟。考试结束后，将试题卷和答题卡一并交回。
2.答卷前，考生务必用0.5毫米黑色签字笔将自己的姓名、准考证号、座号填写在试题卷和答题卡规定的位置上。
3.第Ⅰ卷每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其他答案标号。答案不能答在试题卷上。
4.第Ⅱ卷必须用0.5毫米黑色签字笔作答，答案必须写在答题卡各题目指定区域内相应的位置，不能写在试题卷上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用涂改液、胶带纸、修正带。不按以上要求作答的答案无效。
第Ⅰ卷（选择题 共65分）
一、选择填空（共10小题，计10分）
从A、B、C、D 四个选项中，选出可以填入空白处的最佳答案。
1．It is selfish (自私) ________ him ________ his umbrella with others.
A．of, to not share B．for, not to share C．of, not to share D．for, to not share
2．—Must I finish my homework now
—No, you ________. You can finish it after dinner.
A．mustn’t B．can’t C．needn’t D．shouldn’t
3．Let’s ________ together to save wild animals.
A．act B．acts C．acting D．to act
4．There is ________ water for animals. They are thirsty.
A．few B．a few C．little D．a little
5．We need ________ more trees to save animals.
A．plant B．planting C．to plant D．plants
6．Many animals die ________ pollution every year.
A．of B．from C．in D．for
7．Animals are our friends. We ________ hurt them.
A．should B．shouldn’t C．must D．can
8．There are not many pandas ________ now.
A．live B．living C．lives D．to live
9．It’s important for us ________ wild animals.
A．protect B．protecting C．to protect D．protected
10．People shouldn’t cut ________ trees. Animals lose their homes.
A．up B．off C．down D．out
二、完形填空（共10小题，计10分）
The Plains-wanderer is a small bird that lives in Australia’s grasslands (草原). The little birds are not good at flying, so they 11 most of their time on the ground. When they feel that they are in 12 , they usually choose to run away on the ground rather than fly away.
In the past, there were lots of Plains-wanderers in Australia. But the bird’s number fell 13 because of fewer grasslands. Now, there are only about 250 to 1,000 left in the wild. Scientists want to 14 Plains-wanderers. They first have to know where they are. The bad news is that they are too small 15 they are hard to notice. The good news is that they make a 16 “Oom” call. This is the key to finding them.
Not long ago, scientists thought of a 17 — looking for the birds by “listening” to them. They put 35 recording devices (录音设备) in Australia to 18 their calls. Then, they used AI to study the calls. In 2025, scientists 19 Plains-wanderer calls in Melbourne. It was great news! They were very 20 because they could use the information to help the birds.
Now, scientists are trying to find more Plains-wanderers in Australia.
11．A．spend B．count C．celebrate D．remember
12．A．surprise B．danger C．peace D．silence
13．A．luckily B．safely C．greatly D．loudly
14．A．introduce B．protect C．buy D．draw
15．A．if B．but C．or D．so
16．A．real B．same C．right D．special
17．A．way B．lesson C．map D．question
18．A．greet B．play C．collect D．break
19．A．made B．changed C．raised D．discovered
20．A．angry B．sorry C．happy D．afraid
三、阅读理解（共20小题，计40分）
阅读下面短文，从每题所给的A、B、C、D四个选项中，选出能正确回答所提问题或完成所给句子的最佳答案。
A
Many kinds of animals are in danger now. Here are some examples.
Giant pandas live in the forests in China. Outside China, they are only in zoos. They eat almost only one kind of food—bamboo. Keeping a giant panda in the zoo is difficult because it must have bamboo to eat.
Asian elephants have much smaller ears than African elephants. They live in the forests. There are only fewer than 3,000 Ceylon elephants (a kind of Asian elephant) in the world now.
Tigers belong to the cat family. They get animals like deer for food. Tigers are in danger because people cut down the forests and hunt for them. People hunt them for their beautiful fur. Today there are fewer than 4,000 tigers in the wild.
The European otters (水獭) live in Europe. They have soft, brown fur. They are about 75 cm long. Their tails are half as long as their bodies. They have small and round ears. Today people still hunt the poor animals for their fur.
21．If you want to visit a giant panda in America, where should you go
A．To the zoos. B．To the forests. C．To the parks. D．To the mountains.
22．Why do tigers become fewer and fewer
A．Because they don’t have enough food to eat.
B．Because the weather is not as good as before.
C．Because they can’t have babies in the zoo.
D．Because people destroy their living places and hunt them for their fur.
23．Which of the following is TRUE
A．It’s easy to keep giant pandas in the zoo.
B．Tigers can hunt big animals like lions for food.
C．An African elephant’s ears are much bigger than an Asian elephant’s.
D．The European otter has small and long ears.
24．What can we know from the material
A．People begin to protect the European otters.
B．The number of the European otters is becoming smaller and smaller.
C．All the animals in danger need to live in zoos.
D．People begin to plant trees, so the tigers will have enough places to live.
25．What’s the best title for the material
A．Animals in danger B．Animals around the world
C．Large animals D．People and animals
B
Passage:
Giant pandas are one of the most endangered animals in the world. They mainly live in the central bamboo forests of China. Adult giant pandas usually weigh between 80 and 120 kilograms. Bamboo is their main food, so healthy bamboo forests are their most important habitats.
However, pandas are facing serious problems. First, human logging has destroyed large areas of bamboo forests. Many pandas lose their homes and food. Second, their birth rate is very low. A female panda only gives birth to one or two babies every two years, and many baby pandas cannot survive in the wild. In the past, illegal poaching also made their population decline quickly.
To save pandas, our government has built many nature reserves in Sichuan, Shaanxi and Gansu. Many volunteers work there to monitor pandas’ living conditions. People’s awareness of panda conservation is rising year by year. Thanks to these efforts, the number of wild giant pandas is increasing slowly now. Pandas are no longer in extremely dangerous situations, but we still need to keep protecting them.
Choose the best answer
26．Where do giant pandas mainly live
A．In all forests of China.
B．In central bamboo forests of China.
C．Only in Sichuan province.
D．In all wild reserves around the world.
27．What is the main food of giant pandas
A．Grass B．Leaves C．Bamboo D．Small animals
28．Which of the following is NOT the reason for pandas’ danger
A．Low birth rate. B．Logging destroys habitats.
C．Illegal poaching. D．People build too many reserves.
29．What can we learn from the passage
A．Baby pandas can live on their own easily.
B．Volunteers help monitor pandas’ living conditions.
C．The number of pandas is dropping quickly now.
D．Pandas can live well without bamboo forests.
30．What is the best title of the passage
A．The Protection of Giant Pandas B．The Living Habits of Pandas
C．Wild Animals in Danger D．How to Protect Forests
C
It is 7:00 a.m. at the Siberian Tiger (东北虎) Park in China. The keepers are getting meat ready for the tigers’ breakfast. By 7:30 a.m., the tigers are awake and hungry. They walk around their space and make loud sounds. When they see the keepers, they come close, some even standing up to reach for their food.
Li Ming, a tiger keeper, says, “They are strong and beautiful. I take care of them every day. I wash their cages, feed them, and watch how they act. Each tiger is different. They are very special to me.”
Siberian tigers, are big cats with orange fur and black stripes. They are a symbol of power and nature. But now, they are in danger. Scientists think fewer than 600 wild Siberian tigers live in the world, mostly in Russia (俄罗斯) and China. About 200 more live in zoos.
Why are they in danger
● Less forest: People cut down trees for wood and farms, so tigers have less space.
● Illegal (非法的) Hunting: Some people kill tigers for their fur and bones.
● Not enough food: Tigers eat deer and small animals like rabbits, but these animals are also disappearing.
● Tigers do not have many babies. A mother tiger usually has 2 or 3 cubs (幼崽) every 2-3 years. Many cubs die young. Adult tigers need a lot of space to find food, but forests are getting smaller.
At the Siberian Tiger Park, workers help tigers have babies and study them. Schools teach kids about tiger protection. The government and other groups are working hard to save these amazing animals. If we keep helping, maybe one day there will be more tigers in the wild again.
31．What time do the Siberian tigers at the park usually wake up
A．6:30 a.m. B．7:00 a.m. C．7:30 a.m. D．7:50 a.m.
32．How many Siberian tigers live in the wild
A．about 200 B．more than 600 C．fewer than 600 D．600
33．What does tiger keeper Li Ming do every day
A．Clean the tigers’ house carefully.
B．Play with the tigers and keep them strong.
C．Sell tigers’ bones to the hunters.
D．Help the tigers give birth to fewer babies.
34．Which of the following is NOT a reason Siberian tigers are endangered
A．The forests are getting smaller.
B．The hunters may kill them for money.
C．Too many cubs are born every year.
D．The food is not enough.
35．Which do you think is a good way to help Siberian tigers
A．Planting more trees to make new forests for tigers.
B．Feeding more Siberian tigers in the zoo.
C．Hunting deer and small animals for tigers.
D．Cutting down more forests.
D
One family, two worlds: an elephant’s story
I’m now very old and near the end of my life. But I can still remember many years ago, I lived with my mother, aunts and cousins in a wild and beautiful land. We enjoyed our time under the deep blue sky. We had more than enough to eat. We never worried about anything until one day, when I was about three.
On that day, a group of two-legged strangers appeared in front of us—I found out later that they were humans. Without warning they raised their guns and shot dead my mother and several of my relatives. As I was about to be shot, one of them said, “Keep that little one. He’s handsome and seems smart. We can make greater use of him.” I was then trained and forced to do all kinds of stupid tricks to make humans laugh.
Now, years and years later, things are changing for the better. Our population is starting to grow again. My great-great-grandsons and granddaughters are able to move freely across the land. They search for food, water and places to rest. The little ones sometimes damage crops and people’s homes. But they are not chased or harmed. There are no angry humans going after them. Instead, people leave them bags of corn and fruit on the roadside. The food leads them in the right direction back to their homeland. Drones follow their progress and volunteers protect them from harm. The little ones do not have to worry about anything. They move around without a care in the world. They eat when they are hungry and sleep when tired. They swim in the river and play when they feel like it. No one forces them to move away from their land.
What a different world this is! This is a world of harmony between man and other animals. In the old world, we were killed for our tusks. In this new world, humans respect and value all animal species.
36．Where did the elephant live when he was young
A．In a zoo. B．In a wild and beautiful land.
C．In a city. D．On a farm.
37．What happened to the elephant’s mother
A．She was shot dead by humans. B．She left the family.
C．She was taken to a zoo. D．She died of illness.
38．What was the elephant forced to do after he was caught
A．To work on a farm. B．To carry heavy things.
C．To do tricks to make humans laugh. D．To fight in wars.
39．What do people do when the little elephants damage crops
A．They chase and harm them. B．They leave them food to lead them home.
C．They kill them. D．They put them in cages.
40．What is the main idea of the story
A．Elephants are dangerous animals.
B．Humans should kill elephants for their tusks.
C．The world is changing to be more harmonious between man and animals.
D．Elephants should live in zoos.
四、短文还原（共5小题，计5分）
阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项，选项中有两项为多余选项。
Wild animals are an important part of our earth. But the lives of many wild animals are facing serious problems.
What is the situation of wild animals
Now, the situation of wild animals is not good. 41 The number of them all over the world has gone down by 60% in the past 40 years.
42
There are many reasons that cause wild animals to be endangered, such as pollution and being hunted. But the main reason is that animals are losing their homes. When people keep building houses and factories, they take away animals’ homes at the same time. 43
How can we protect the animals in danger
There are a few things we can do. 44 For example, we can set up more protected areas and protect the living areas of animals. We can also work on teaching people how important it is to protect wild animals.
45 Remember that only by working together can we make a bright future for wild animals and ourselves.
A．How do the animals help us
B．What puts wild animals in danger
C．Many animals are in danger.
D．We can work on protecting their homes.
E．We can protect animals by making rules.
F．It leaves wild animals have fewer places to live.
G．All in all, everyone should take action to protect animals.
第Ⅱ卷（非选择题；共55分）
五、词汇应用（共10 小题，计10分）
阅读短文，在空白处填入适当的单词、词组，或括号内单词的正确形式。
I’m an old elephant. I can still remember the old days. I 46 (live) with my family in a wild and beautiful land. We had more than enough to eat and never 47 (worry) about anything.
When I was three, some humans came. They 48 (shoot) my mother and relatives. I 49 (take) away and forced to do tricks 50 (make) humans laugh.
Now, things are 51 (change) for the better. Our population is growing again. My great-great-grandsons can move 52 (free) across the land. People don’t chase or harm them. Instead, they leave them food 53 (lead) them home. Drones and volunteers protect them 54 harm.
This is a world of 55 (harmonious) between man and animals.
六、选词填空（共10小题，计10分）
根据语篇内容，从方框中选择恰当的单词，并用其正确形式填空。将单词填写在答题卡对应的横线上。每个单词只能用一次。
eye lucky happen in us back and answer meet what
My name is Xiao Su. I’m a South China tiger. Last night, I dreamed that I was living 56 the 1850s. At that time, we were common in the wild. Every day, as I went around in the forest, I could 57 a few friends. Life was quite peaceful.
“Bang!” I heard a sudden gunshot (枪响). I found it was just another dream. It was the 1950s. People called 58 “man-eating tigers”. Many of them were hunting (狩猎) us. We were also killed for our beautiful fur. With helpless tears in my 59 , I fell asleep again.
“Xiao Su! Xiao Su!” I woke up with the voice of the zookeepers. I looked around my cage 60 felt safe. Good or bad, none of these things 61 to me in the past.
But I feel sad when my kids ask me 62 the world is like. Nobody knows the 63 for sure. All South China tigers today are born and brought up in the zoo. 64 , China is paying more attention to biodiversity (生物多样性) now. Researchers are trying to send South China tigers 65 to the forest again. Maybe my great-grandchildren will be able to live freely.
七、阅读表达（共5小题，计10分）
阅读下面短文，按照题目要求用英语回答问题，并将答案写到答题卡的相应位置。
Plains wanderers（领鹑）are small, rare birds that live in grasslands. Unlike most birds, female plains wanderers are larger and stronger than males. Females take the lead in protecting their nests and babies from animals like foxes, while males often sit on the eggs to keep them warm. These birds are hard to find because their feathers blend into the grass, making them look like part of the landscape. Sadly, their numbers have been dropping because people are taking over their grassland homes for farms and cities.
To save them, scientists are using AI. The key is the birds’ calls. Mother wanderers make soft sounds to talk to their chicks and warn about danger. These calls are quiet and easy to miss, but AI can hear them clearly. Scientists put microphones in the grasslands to record sounds all day and night. Then they put these recordings into a computer program. The AI learns to tell the wanderers’ calls apart from other noises, like the wind blowing or insects chirping. This helps scientists find where the mother birds are and how many chicks they have.
“AI helps us monitor these birds without bothering them,” says Dr. Lee, who leads the project. “We can find the most important areas for them and work to protect those places.” Once, the AI helped scientists find a hidden nest with three baby birds. Without AI, they might not have found it. Thanks to this technology, there is new hope for these rare birds, showing that AI can ______.
66．What is the special difference between plains wanderers and most birds
67．What is the main reason for the drop in the number of plains wanderers
68．How does AI help scientists locate mother wanderers and their chicks
69．With the help of AI, what can scientists do for plains wanderers
70．Complete the sentence in the last paragraph with proper words.
八、书面表达（共1题，计25分）
71．动物是人类最好的朋友，但是人们对环境的破坏使得许多野生动物濒临灭绝，请以“Saving animals in danger“为题写一篇短文呼吁人们一起来拯救这些濒危动物。
要求：
1. 词数100左右（文章开头已给出，不计算在内）；
2. 语句通顺、语法正确、书写工整；
3. 四点写作要点：
① 现状：很多野生动物濒临灭绝；
② 原因：人类猎杀、砍伐森林、破坏环境；
③ 我们可以做的保护措施；
④ 发出倡议，呼吁人人保护动物。
Saving animals in danger
Animals are our best friends. However,
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/ 让学习更有效 单元培优卷 | 英语学科
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参考答案及试题解析
1．C
【解析】句意：他不和别人共用雨伞，真是太自私了。
本句是固定句型“It is+adj.+of/for+sb.+to do sth.”，当形容词描述人的品质时，用of，意为“某人做某事真是……”；当形容词描述事物性质时，用for，意为“做某事对某人来说是……的”。句中selfish“自私的”，是描述人的品质，应该用of；动词不定式的否定形式是在to之前加not，即not to share。
2．C
【解析】句意：——我必须现在完成作业吗？——不，你不必。你可以晚饭后再完成。
mustn’t禁止；can’t不能；needn’t不必；shouldn’t不应该。根据问句可知这是询问必要性，否定回答表示不必，应用needn’t，mustn’t表示禁止，不符合语境，应选needn’t。
3．A
【解析】句意：让我们一起行动起来保护野生动物。
根据“Let’s”可知，本句是祈使句，let’s后接动词原形，应填act。
4．C
【解析】句意：动物们几乎没有水了。它们渴了。
few几乎没有（修饰可数名词，表否定）；a few一些（修饰可数名词，表肯定）；little几乎没有（修饰不可数名词，表否定）；a little一些（修饰不可数名词，表肯定）。water是不可数名词，排除 A、B；根据后句“They are thirsty.”可知水不足，表否定含义，应填little。
5．C
【解析】句意：我们需要种植更多的树来拯救动物。
固定搭配need to do sth.意为“需要做某事”，后接不定式to plant作宾语。
6．B
【解析】句意：每年有许多动物死于污染。
of……的；from来自；in在……里；for为了。die of 死于（内因，如疾病、衰老）；die from死于（外因，如事故、污染）。根据pollution可知是外部原因导致的死亡。
7．B
【解析】句意：动物是我们的朋友。我们不应该伤害它们。
should应该；shouldn’t不应该；must必须；can能。根据前句“Animals are our friends.”可知动物是人类的朋友，因此我们不应该伤害它们。应填shouldn’t。
8．B
【解析】句意：现在没有很多熊猫活着。
There be句型中，be动词后已有谓语，空处作后置定语。名词pandas与动词live之间是主动关系，表示“活着的熊猫”，应用现在分词living。
9．C
【解析】句意：对我们来说保护野生动物是很重要的。
固定句型“It’s+adj.+for sb.+to do sth.”意为“对某人来说做某事是……的”，其中it是形式主语，真正的主语是动词不定式。
10．C
【解析】句意：人们不应该砍伐树木。动物会失去它们的家园。
up向上；off脱离；down向下、砍倒；out出去。根据“Animals lose their homes”可知，砍伐树木会导致动物失去家园，固定搭配cut down trees意为“砍伐树木”，应填down。
11．A 12．B 13．C 14．B 15．D 16．D 17．A 18．C 19．D 20．C
【导语】本文介绍了澳大利亚草原鸟Plains-wanderer数量锐减，科学家利用录音设备和人工智能技术寻找并保护它们的故事。
【解析】11．句意：这种小鸟不擅长飞行，所以它们大部分时间花在地上。
固定搭配spend time表示“花费时间”。count数，celebrate庆祝，remember记住，语意不通。
12．句意：当它们感到处于危险中时，通常选择在地上逃跑而不是飞走。
根据“run away”，可知是遇到危险。danger“危险”符合语境，surprise吃惊，peace和平，silence安静，不符合逃跑的语境。
13．句意：但是由于草原减少，这种鸟的数量大幅下降。
根据后文“only about 250 to 1,000 left”，可知数量下降巨大。greatly“大大地”符合语境，luckily幸运地，safely安全地，loudly大声地，无法修饰下降程度。
14．句意：科学家想要保护Plains-wanderers。
根据语境数量稀少，科学家的目的是保护濒危物种。protect“保护”符合语境，introduce介绍，buy买，draw画，不符合科学家的行为。
15．句意：坏消息是它们太小了，所以很难被注意到。
前后句是因果关系，太小导致难发现。so“因此”符合因果关系，if如果，but但是，or或者，逻辑不通。
16．句意：好消息是它们发出一种特殊的“Oom”叫声。
根据“This is the key to finding them”，叫声独特特殊才能作为关键线索。special“特别的”符合语境，real真的，same相同的，right正确的，不符合语境。
17．句意：不久前，科学家想出了一个方法——通过“听”来找鸟。
根据破折号后的具体做法，可知是想出了一个方法。way“方法”符合语境，lesson教训，map地图，question问题，语意不符。
18．句意：他们在澳大利亚放置了35个录音设备来收集它们的叫声。
录音设备的作用是收集声音数据。collect“收集”符合语境，greet问候，play玩，break打破，不符合设备功能。
19．句意：2025 年，科学家在墨尔本发现了Plains-wanderer 的叫声。
根据“It was great news”，可知是成功发现了叫声。discovered“发现”符合语境，made制作，changed改变，raised筹集，不符合语境。
20．句意：他们非常高兴，因为他们可以利用这些信息来帮助鸟类。
根据“great news”和帮助鸟类的好处，情绪应是积极的。happy“高兴的”符合语境，angry生气的，sorry抱歉的，afraid害怕的，属于消极情绪。
21．A 22．D 23．C 24．B 25．A
【导语】本文开篇点明核心主题 —— 许多动物正处于濒危状态，随后以大熊猫、亚洲象（锡兰象）、老虎、欧洲水獭为例，分别介绍了这几种动物的栖息地、外形特征、生活习性，以及它们面临的濒危原因（如人类猎杀、栖息地被破坏等），清晰展现了濒危动物的生存现状。
21．第二段指出：“Giant pandas live in the forests in China. Outside China, they are only in zoos.”，这直接说明中国以外的地方，大熊猫只生活在动物园里，美国属于中国以外的国家，因此应该去动物园。
22．第四段指出：“Tigers are in danger because people cut down the forests and hunt for them. People hunt them for their beautiful fur.”，这直接说明老虎数量越来越少的原因是人们砍伐森林（破坏它们的栖息地）并为了它们的皮毛猎杀它们。
23．第三段指出：“Asian elephants have much smaller ears than African elephants.”，这直接说明亚洲象的耳朵比非洲象小得多，即非洲象的耳朵比亚洲象大得多，与选项表述一致。
24．第五段指出：“Today people still hunt the poor animals for their fur.”，人们持续猎杀欧洲水獭，由此可推断它们的数量会越来越少。
25．第一段开篇即点明主题：“Many kinds of animals are in danger now, Here are some examples.”，后文围绕大熊猫、亚洲象、老虎、欧洲水獭这几种濒危动物展开介绍，因此最佳标题是“濒危动物”。
26．B 27．C 28．D 29．B 30．A
【导语】本文介绍了大熊猫的生活习性、面临的生存威胁以及人们为保护它们所做的努力。
26．原文第一段提到“They mainly live in the central bamboo forests of China”，说明大熊猫主要生活在中国中部的竹林里。
27．原文第一段提到“Bamboo is their main food”，说明竹子是大熊猫的主要食物。
28．原文第二段“However, pandas are facing serious problems...In the past, illegal poaching also made their population decline quickly”提到大熊猫面临的威胁包括人类砍伐竹林、出生率低、非法偷猎；而建立自然保护区是保护大熊猫的措施，不是它们面临危险的原因。
29．原文第三段提到“Many volunteers work there to monitor pandas’ living conditions”，说明志愿者会帮助监测大熊猫的生活状况。
30．全文围绕大熊猫的现状、面临的问题以及保护措施展开，核心是对大熊猫的保护。
31．C 32．C 33．A 34．C 35．A
【导语】本文介绍了中国东北虎园里东北虎的日常，东北虎的外形特征，以及它们处于濒危状态的原因，同时说明了人们为保护东北虎所做的努力。
31．第一段指出东北虎通常醒来的时间：“By 7:30 a.m., the tigers are awake and hungry.”，说明公园里的东北虎通常在早上7:30醒来。
32．第三段说明野生东北虎的数量：“Scientists think fewer than 600 wild Siberian tigers live in the world, mostly in Russia (俄罗斯) and China.”，表明野生东北虎的数量不足600只。
33．第二段说明东北虎饲养员李明每天做的事：“Li Ming, a tiger keeper, says, ‘They are strong and beautiful. I take care of them every day. I wash their cages, feed them, and watch how they act.’”，说明李明每天会仔细打扫老虎的笼子（即老虎的家）、喂它们并观察它们的行为。
34．文章“ Why are they in danger ”部分列举了东北虎濒危的原因，其中提到“A mother tiger usually has 2 or 3 cubs (幼崽) every 2-3 years.”，说明东北虎每年出生的幼崽并不多，由此可推断“每年出生太多幼崽”不是东北虎濒危的原因。
35．文章提到东北虎濒危的原因之一是“Less forest: People cut down trees for wood and farms, so tigers have less space.”，由此可推断，多植树为老虎开辟新的森林，是帮助东北虎的好方法。
36．B 37．A 38．C 39．B 40．C
【导语】本文以一头年迈大象的第一视角，讲述了过去大象家族被人类猎杀剥削的悲惨遭遇，以及如今人类转变观念保护大象，人和野生动物逐渐和谐共处的变化，呼吁人类尊重保护野生动物。
36．第一段的第二句“But I can still remember many years ago, I lived with my mother, aunts and cousins in a wild and beautiful land.”指出了大象小时候的居住地点，它生活在一片无人烟且美丽的土地上。
37．第二段的第二句“Without warning they raised their guns and shot dead my mother...”说明了大象妈妈的不幸遭遇，她被人类射杀。
38．第二段的最后一句“I was then trained and forced to do all kinds of stupid tricks to make humans laugh.”说明了大象被抓之后的遭遇，被迫表演各种愚蠢的把戏来逗人类笑。
39．第三段的“The little ones sometimes damage crops and people’s homes...Instead, people leave them bags of corn and fruit on the roadside. The food leads them in the right direction back to their homeland.”说明，当幼象破坏庄稼后，人类会留下食物引导它们回家。
40．文章对比了过去和现在人类对待大象的不同态度，结尾点明主旨“...This is a world of harmony between man and other animals. In the old world, we were killed for our tusks. In this new world, humans respect and value all animal species.”，因此文章核心是世界正逐渐变得更适合人与动物和谐共处。
41．C 42．B 43．F 44．D 45．G
【导语】本文围绕野生动物保护展开，依次介绍了野生动物的生存现状、濒危原因以及保护措施，呼吁大家共同行动，为野生动物和人类创造光明未来。
41．前文提到野生动物的现状不容乐观，后文用数据说明过去40年全球野生动物数量下降了60%，选项C“Many animals are in danger.”点名许多动物正处于危险之中，承接前文并引出后文的数据支撑，衔接自然。
42．后文段落介绍了导致野生动物濒危的多种原因，选项B“What puts wild animals in danger ”以问句形式引出下文对濒危原因的探讨，起到段落标题的作用，逻辑通顺。
43．前文提到人类建房、建厂夺走了动物的家园，选项F“It leaves wild animals have fewer places to live.”说明这种行为带来的后果，即动物的栖息地地减少，承接前文内容，逻辑合理。
44．前文提到我们可以做一些事来保护动物，后文举例说明可以建立保护区、保护动物栖息地，选项D“We can work on protecting their homes.”点名保护动物家园的具体做法，引出后文的例子，衔接顺畅。
45．前文介绍了保护动物的措施，后文呼吁大家共同努力，选项G“All in all, everyone should take action to protect animals.”总结全文，发出人人行动起来保护动物的呼吁，呼应后文的号召，衔接自然。
46．lived 47．worried 48．shot 49．was taken 50．to make 51．changing 52．freely 53．to lead 54．from/against 55．harmony
【导语】本文以一头老象的视角，讲述了大象家族从过去的自由生活、遭遇人类伤害，到如今环境改善、种群恢复，最终实现人与动物和谐共生的故事。
46．句意：我和家人住在一片原始又美丽的土地上。前文提到“the old days”，句子为一般过去时，live的过去式是lived。
47．句意：我们衣食无忧，从不为任何事担心。句子为一般过去时，worry的过去式是worried。
48．句意：他们射杀了我的母亲和亲人。句子为一般过去时，shoot的过去式是shot。
49．句意：我被带走，被迫表演把戏逗人类发笑。主语I和take是被动关系，句子为一般过去时，用一般过去时的被动语态was taken。
50．句意：我被带走，被迫表演把戏逗人类发笑。此处用不定式to make作目的状语，表示表演把戏的目的。
51．句意：现在，情况正在好转。are后接现在分词构成现在进行时，change的现在分词是changing。
52．句意：我的重重孙辈可以在这片土地上自由活动。此处需要副词修饰动词move，free的副词形式是freely，意为“自由地”。
53．句意：相反，他们给它们留下食物，引导它们回家。此处用不定式to lead作目的状语，表示留下食物的目的。
54．句意：无人机和志愿者保护它们免受伤害。固定搭配protect...from/against...表示“保护……免受……”。
55．句意：这是一个人与动物和谐共处的世界。介词of后接名词，harmonious的名词形式是harmony，意为“和谐”。
56．in 57．meet 58．us 59．eyes 60．and 61．happened 62．what 63．answer 64．Luckily 65．back
【导语】本文以华南虎的自述视角，讲述族群从前的生存状态、如今圈养现状，以及有望重返森林的期盼。
56．句意：昨晚，我梦见自己生活在十九世纪五十年代。空为“the 1850s”，表达在某一年代，固定搭配in the+整十数年份复数，符合年代表达用法。
57．句意：每天我在森林里四处走动时，都能遇见一些同伴。空前有情态动词“could”，后面要接动词原形，结合备选词，在森林活动会碰到同类朋友，meet表示“遇见”，贴合上下文情节。
58．句意：人们称呼我们为“食人虎”。动词“called”后面需要人称代词宾格作宾语，全文以华南虎第一人称自述，指代虎群要用宾格us，契合叙事人称。
59．句意：我眼中含着无助的泪水，再次沉沉睡去。空前有形容词性物主代词“my”，结合备选词和“With helpless tears”，人有两只眼睛，eye要变为复数eyes，搭配with tears in one’s eyes的常用表达。
60．句意：我环顾笼子四周，感到很安心。前后“looked around my cage”与“felt safe”是两个并列动作，需要并列连词衔接，and可连接并列谓语，语义顺承自然。
61．句意：无论好坏，这些往事过去从未发生在我身上。主语为“none of these things”，句子缺少谓语动词，结合备选词，表达往事从未降临在自己身上，happen to sb为固定搭配，表示“发生在某人身上”，结合句中“in the past”，用过去式happened。
62．句意：但当幼虎问我世界是什么样子时，我感到难过。此处是宾语从句结构，固定句式what...be like用来询问事物样貌，结合小虎询问世界模样的语境，用what引导从句。
63．句意：没有人能确切知道答案。原文上文提出世界是什么样子的问题，空前有定冠词“the”，需填名词指代对应问题的回应，answer表示“答案”，贴合问答对应的上下文逻辑。
64．句意：幸运的是，中国如今更加重视生物多样性。空处放在句首修饰整个句子，需用副词作状语，结合备选词和“China is paying more attention to biodiversity”，是迎来保护老虎的好消息，lucky变副词Luckily表示“幸运地”，句首首字母大写。
65．句意：研究人员正尝试把华南虎再次送回森林。固定短语send...back to...，表示“把……送回某地”，结合后文重回森林生活的语境，用back契合回归野外的含义。
66．Female plains wanderers are larger and stronger than males. 67．People are taking over their grassland homes for farms and cities. 68．AI can clearly hear the birds’ quiet calls and tell them apart from other noises. 69．They can find the most important areas for the birds and work to protect those places. 70．be a powerful tool in saving wildlife./help humans protect the birds in an effective way.
【导语】本文主要介绍了科学家利用AI技术监测和保护濒危鸟类—平原游鹑的方法与成效。
66．第一段明确指出：“Unlike most birds, female plains wanderers are larger and stronger than males”，直接点明了平原游鹑与大多数鸟类的特殊区别，因此答案是原文直接信息。
67．第一段提到：“Sadly, their numbers have been dropping because people are taking over their grassland homes for farms and cities”，说明了平原游鹑数量减少的主要原因，这是原文中的信息，直接提取 。
68．第二段说明AI的工作原理：“These calls are quiet and easy to miss, but AI can hear them clearly... The AI learns to tell the wanderers' calls apart from other noises”，这正是AI帮助科学家定位亲鸟和雏鸟的方式，答案几乎是原文引述。
69．第三段引用项目负责人Dr. Lee的话：“We can find the most important areas for them and work to protect those places”，说明了科学家借助AI可以开展的保护工作，答案是原文直接信息。
70．本题为开放性试题，答案不唯一，但需结合全文内容和AI在保护濒危鸟类中的作用合理作答。AI能够通过识别鸟鸣帮助科学家监测、定位并保护平原游鹑，体现了其在野生动物保护中的价值。
71．参考范文
Saving animals in danger
Animals are our best friends. However, now a lot of wild animals are in great danger. Their number is becoming smaller and smaller.
There are two main reasons. Some people hunt them for money. Others cut down forests and pollute their living environment.And many wild animals have no places to live. We should do something to save them. First of all, we must not buy animal products made from animals in danger. In addition, we can plant more trees and tell people not to hurt wild animals. What’s more, we shouldn’t pollute the environment.
As students, it’s our duty to love and save the animals in danger. Let’s work together to protect them.
【解析】写作步骤：
[第一步：审题立意]
确定文体：这是一篇议论文，用一般现在时
明确要点：分析导致野生动物濒危的主要原因，提出拯救濒危动物的具体措施
确定人称：第一人称（we）
注意事项：语言表达要准确清晰，逻辑连贯；在阐述拯救措施时要具体可行；避免语法和拼写错误
[第二步：构思布局]
三段式结构：
开头段：点明动物是我们的朋友，但很多野生动物处于危险中且数量不断减少，引出下文对濒危原因和拯救措施的讨论
主体段：分析导致野生动物濒危的主要原因，提出拯救濒危动物的具体措施
结尾段：强调作为学生有责任爱护和拯救濒危动物，呼吁大家共同努力保护它们
[第三步：要点展示]
要点一：分析导致野生动物濒危的主要原因
具体原因：hunt them for money/cut down forests and pollute their living environment/environmental destruction等
要点二：提出拯救濒危动物的具体措施
具体措施：must not buy animal products made from animals in danger/plant more trees and tell people not to hurt wild animals/shouldn’t pollute the environment/raise public awareness about the importance of protecting these animals等
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