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Unit 5 Looking into nature阅读理解12篇
（单元话题：自然探索）
学校:___________姓名：___________班级：___________考号：___________
一、阅读理解
Many students like looking into nature in their free time. They can find beautiful insects, lovely birds and different plants. To study nature well, they need to take notebooks, pencils and even cameras. They write down what they see and take photos. Some students join school clubs to share their findings. Looking into nature makes students love the world and care more about the environment.
1．What do students like doing in their free time
A．Playing computer games. B．Looking into nature.
C．Buying snacks. D．Watching movies.
2．What do students NOT need when studying nature
A．Notebooks. B．Cameras. C．Cars. D．Pencils.
3．What do students do when looking into nature
A．Catch insects. B．Write down what they see.
C．Cut leaves. D．Make noise.
4．Why do some students join school clubs
A．To sell photos. B．To share their findings.
C．To play games. D．To watch TV.
5．What can looking into nature help students do
A．Learn to cook. B．Care more about the environment.
C．Make more money. D．Play better sports.
When we look into nature, we can see that every living thing plays a role. Bees help flowers make seeds. Bats eat insects and control their numbers. Trees clean the air and make oxygen.
But when people cut down forests or pollute rivers, they break the balance of nature. If we learn more about nature, we will know how important it is to live in peace with wild animals and plants.
6．What do bees help flowers do
A．Make seeds. B．Grow taller. C．Clean the air. D．Make oxygen.
7．What do bats eat according to the passage
A．Fruit. B．Insects. C．Leaves. D．Seeds.
8．What can break the balance of nature
A．Planting trees. B．Cutting down forests.
C．Taking photos. D．Watching animals.
9．What will we know if we learn more about nature
A．How to catch animals. B．How to make more money.
C．How important nature is. D．How to build houses.
10．The best title of the passage is ______.
A．Looking into nature and its balance B．How to keep bees at home
C．The life of bats D．Different kinds of plants
Zhenjiang is a famous historical and cultural city with a long history. It stands at the junction of the Yangtze River and the Grand Canal, and has nurtured many outstanding people who have made great contributions to Chinese culture, science and art.
Shen Kuo was a great scientist in the Northern Song Dynasty. He lived in Zhenjiang for many years and wrote his great work Dream Pool Essays here. The book covers astronomy, mathematics, medicine and many other fields. It is regarded as a landmark in ancient Chinese science.
Mi Fu was one of the most famous calligraphers and painters in the Northern Song Dynasty. He settled in Jingkou, which is now Zhenjiang. He was good at running script and landscape paintings. His free and artistic style had a far-reaching influence on later artists.
Mao Yisheng was a great bridge expert and educator born in Zhenjiang. He designed and built the Qiantang River Bridge, the first modern large-scale bridge designed and built by Chinese people. He also trained many bridge engineering talents and made great contributions to China's bridge cause.
11．Which of the following is TRUE about Mao Yisheng
A．He lived in Zhenjiang all his life. B．He was famous for painting bamboo.
C．He was a scientist of the Song Dynasty. D．He built the first modern bridge by Chinese people.
12．What can we learn about Mi Fu
A．He lived in the Tang Dynasty. B．He wrote a famous science book.
C．He was an expert in modern bridges. D．He was good at calligraphy and painting.
13．What is the best title for the passage
A．Famous Bridges in China B．History of the Grand Canal
C．Three Great Figures from Zhenjiang D．Great Scientists of the Song Dynasty
In 1929, Sanxingdui was first found in Southwest China’s Sichuan province, but its importance was not recognized until the year 1986 when ancient city walls, palaces and many gold ivory and bronze artifacts (青铜器) have been unearthed here.
In 2001, archaeologists (考古学家), found the remains of another ancient city called Jinsha near Chengdu. They found a gold crown with similar engraved pattern (纹饰) of fish, arrows and birds to other golden objects found at Sanxingdui. For this reason, some scholars believe that the people from Sanxingdui may have moved their homes to Jinsha.
But it remains a mystery. Here are some clues that might help find the facts.
In 1099 BC, ancient writers recorded an earthquake in the capital of the Zhou Dynasty (朝代), in present-day Shaanxi Province. Though that area is about 400 kilometres from the historic site of Sanxingdui, it is possible that the centre of the earthquake was actually close to Sanxingdui.
Around the same time, the layers of dirt show that there was possibly a great flood (洪水). In the Han Dynasty book The Chronicles of the Kings of Shu (《蜀王本纪》), it is written that ancient floods poured from a mountain in a spot, which suggests the river flowing in a new direction.
Together, the ideas lead people to believe that possibly a large earthquake caused a landslide that dammed (拦住) the river. This changed its path and stopped the water from flowing to Sanxingdui. That may have forced the ancient Chinese people to leave their homes to move closer to the river’s new path. Living near water was very important at that time. The people had to get water from the river and carry it to their homes to drink, cook and wash.
Although these clues help explain why the ancient Shu people moved from Sanxingdui to Jinsha, the real truth is still unclear. We need more research to find solid evidence. Sanxingdui and Jinsha are treasures of ancient Shu civilization, showing the great wisdom of ancient Chinese people. With further study, more secrets of this wonderful civilization will be uncovered step by step.
14．When was Sanxingdui first found
A．In 1929. B．In 1986. C．In 2001. D．In 1099.
15．The underlined word “it” in the third paragraph refers to ________.
A．how Jinsha remains were found
B．why Sanxingdui’s discovery matters
C．how the ancients made beautiful objects
D．why people in Sanxingdui moved to Jinsha
16．What record in the Han Dynasty book has helped to solve this mystery
A．Floods poured from a mountain.
B．The ancients moved to the river.
C．There were similar golden objects.
D．An earthquake hit near Sanxingdui.
17．What can we infer (推断) from the passage
A．Jinsha was built before Sanxingdui.
B．Earthquakes hit Sanxingdui many times.
C．Water was not important for the ancients.
D．Sanxingdui and Jinsha shared the same culture.
18．In which book can we read this passage
A．Famous Rivers in History. B．Unsolved Mysteries of the World.
C．History of Ancient Chinese Art. D．A Guide to Sichuan’s Natural Wonders.
Antarctica is the coldest and windiest place on Earth. It is covered with thick ice and snow all year round. In 1989, an international team of 6 explorers went there to do scientific research. The team included Qin Dahe from China, and other members from the US, France and Japan. Their journey was full of difficulties, but they never gave up—because they worked together as a team. At first, everything went well. They set up a small camp and started their work. Qin Dahe, a Chinese scientist, was responsible for collecting snow samples to study the climate. But one day, a strong snowstorm came suddenly. The wind was so strong that it almost blew down their tents. Their food and water became less and less, and some of their equipment was broken. Two members, including the American explorer Tom, felt sick because of the cold and thin air.
However, the team didn’t panic. Qin Dahe and the French member Pierre fixed the tents and checked the equipment. The Japanese member Yuki took care of the sick members and shared their warm clothes. They saved their food and water carefully, and helped each other walk through the deep snow. When Tom fell into soft snow, Qin Dahe and Pierre pulled him up at once. They encouraged each other every day, saying “We can do it together”.
After 10 days, the snowstorm stopped. With their great teamwork, all members survived (生存) and finished their research. Qin Dahe and his teammates proved that no matter how hard the challenge is, teamwork can help us get through it. It is the most powerful strength in a difficult journey. Their story is a real part of Antarctic exploration history.
19．Why did the explorers go to Antarctica
A．To climb a high mountain. B．To do scientific research.
C．To take beautiful photos. D．To find some new food.
20．What does the underlined word panic in paragraph 3 probably mean
A．Worry. B．Cheat. C．Matter. D．Continue.
21．Which is the correct order of the following
①A strong snowstorm came suddenly.
②The team set up a camp and started their research.
③The team worked together to deal with the difficulties.
④All members survived and finished their research.
A．②①③④ B．①②③④ C．②③①④ D．①③②④
22．What is the best title of the text
A．A Cold and Hard Day in Antarctica. B．How to Survive a Snowstorm in Antarctica.
C．Qin Dahe’s Life Story in Antarctica. D．Teamwork Helps Explorers in Antarctica.
Spring is an exciting time of the year! Did you know there are many cool things about spring apart from just the warm weather
During spring, the bad weather can be all over the place. That’s because warm air from the south and cold air from the north are fighting, making the weather really __________.
Lots of baby animals are born in spring. They come into the world when they can get more time to enjoy the sunshine and warmer weather. Deer (鹿), squirrels (松鼠), foxes, and even whales welcome their little ones during spring when food is easy to find.
Spring can make you feel much happier. As the weather gets warmer, your brain makes more serotonin (血清素), something that makes you feel good. That’s why people feel more positive when spring rolls around.
Do you know that spring doesn’t start at the same time everywhere In the Northern Hemisphere (半球), spring begins in March, but for people in the Southern Hemisphere, such as Australians, it starts in September. So, while some people are enjoying spring, people in the other hemisphere are experiencing fall!
23．Which word best fits in the “________”
A．clear B．windy C．changeable D．beautiful
24．Why are many baby animals born in spring
A．Because they will have fewer enemies who can kill them.
B．Because it is warm with more food.
C．Because they can sleep more at night.
D．Because they can spend more time with their parents.
25．Which word can take the place of the underlined word “positive”
A．Hopeful. B．Bored. C．Organized. D．Sleepy.
26．When it is fall in the Northern Hemisphere, which season are Australians experiencing
A．Spring. B．Summer. C．Fall. D．Winter.
27．Which of the following poem lines (诗句) is about spring
A．No birds fly over endless icy hills; without anything, all paths are silent and still.
B．I stop my cart to watch maple (枫树) trees at night; frost-touched leaves are much redder than spring flowers.
C．The lotus (荷花) leaves spread far and wide, reaching up to the sky; under the sun, the lotus flowers shine more brightly in the color of red.
D．With wind it steals in night; mute, it moistens (使湿润) each thing.
Huang Xuhua, a famous scientist in China, passed away at the age of 99 on February 6th in Wuhan, due to illnesses. Huang was known as the chief designer of China’s first nuclear submarines (核潜艇) and had received many high honors.
Huang played a key role in developing China’s first nuclear submarines, the Type 091 and Type 0911, from the 1950s to the 1980s. For 30 years, his work had been a secret. In 1970, he and his team successfully launched China’s first nuclear submarine, and it performed better than the first US nuclear submarine launched in 1954.
As China’s navy started to share more information, stories about Huang and his team became widely known. People started to call him the “ ▲ ”
Huang was born in Guangdong Province in 1926. He studied shipbuilding at National Chiao Tung University (now Shanghai Jiao Tong University) from 1945 to 1949. Later, he became one of the first scientists to work on China’s nuclear submarine program. In 1958, because of his excellent skills and qualities, Huang was secretly called to Beijing. For the next 30 years, he worked hard in secret on China’s nuclear submarine program. He and his team started from nothing and overcame many difficulties to build the country’s first nuclear submarine.
Huang’s life was full of achievements. From 2017 to 2020, he was awarded national-level honors three times by President Xi Jinping. In 2019, he was awarded the Medal of the Republic, and in 2020, he got the highest science and technology award in China for 2019. Huang cared a lot about the future of science and technology in China, as well as the growth of young people. He donated over 20 million yuan of his money to support scientific research, education, and the spread of scientific knowledge. He spent his whole life developing China’s nuclear submarine industry and national defense, which encourages us to try our best to make the country stronger.
28．Which one is the best to fill in the blank ▲
A．Teacher of the Year B．Founder of Shanghai Jiao Tong University
C．Best Scientist in the World D．Father of China’s Nuclear Submarines
29．Which of the following is the right order of Huang Xuhua’s life
① Huang received the Medal of the Republic.
② Huang was called to Beijing to work on the nuclear submarine
③ Huang studied at National Chiao Tung University.
④ Huang Launched China’s first nuclear submarine.
A．③-②-④-① B．②-③-④-① C．①-④-②-③ D．④-①-③-②
30．Which of the following is NOT true about Huang Xuhua according to the passage
A．He was born in Guangdong Province.
B．He passed away at the age of 99.
C．His family knew about his job and supported him very much.
D．He and his team successfully launched China’s first nuclear submarine in 1970.
① Can plants talk Modern research has found something amazing: They do communicate with each other.
② It has been known for some time that plants use chemicals to communicate with each other. This happens when a plant gets attacked by insects. The plant gives out chemicals from the leaves that are being eaten. When another plant gets the chemicals, it starts to give out its own, different chemicals. Some of these chemicals drive insects away. Others attract the wasps (吸引黄蜂)! The wasps kill the insects that are eating the plants. Scientists hope to learn more about this plant warning system, so that we can use it to grow more crops.
③ More surprisingly, plants also use sounds to communicate. People can’t hear these sounds, but plants are making them. Some plants make noises with their roots. Some trees make clicking noises when there is not enough water.
④ Most surprisingly of all, plants have an amazing system of communication. The system can link (连接) nearly every plant in a forest. Scientists call this system the “wood wide web”. It is in some ways similar to the Internet we use. Using the wood wide web, plants can share information and even food with each other. However, it may lead to bad effects. Plants may use it to steal food from each other, or spread chemicals to attack other plants. Perhaps one day scientists will learn how to create a “firewall” to help avoid these attacks within the wood wide web.
Scientists are learning more every day about the secret ways in which plants talk to each other. Maybe one day we will know enough about plant communication to be able to “talk” with them ourselves.
31．What will plants do when they are attacked by insects
A．They will kill the insects by themselves.
B．They will make the wasps kill the insects.
C．They will send out signals to drive insects away.
D．They will produce chemicals as a warning or a call for help.
32．What is the writer’s purpose of the last paragraph
A．To give people hope for further studies.
B．To praise (表扬) scientists for their great achievements.
C．To call on people to protect the plants on earth.
D．To encourage people to communicate with plants.
33．Which is the structure of the passage
A． B． C． D．
34．What is the best title for the passage
A．The secret language of plants
B．The study on the plant warning system
C．The plants that give warnings
D．The reason why scientists do research on plants
In 2006, scientists changed the number of planets in our solar system from nine to eight. This was because Pluto didn’t meet all the rules for a true planet:
1. It must move around the sun.
2. It must be round (or nearly round).
3. It must clear things in its way.
Pluto failed the third rule, so it was decided that it doesn’t belong to the list of true planets. Now, the model of the solar system only has eight planets.
This change teaches us that our understanding of nature can change over time. New discoveries can prove that old beliefs are wrong.
35．How many true planets are in our solar system now
A．7. B．8. C．9. D．10.
36．Why was Pluto removed from the list of true planets
A．It was too small.
B．It didn’t move around the sun.
C．It didn’t clear things in its way.
D．It was not round.
37．What does this change teach us
A．Our understanding of nature can change over time.
B．Pluto is not a real object in space.
C．Scientists always make mistakes.
D．The solar system will never change again.
38．Which of the following is NOT a rule for a true planet
A．It must move around the sun.
B．It must be very large.
C．It must be round (or nearly round).
D．It must clear things in its way.
Huang Xuhua, a famous scientist in China, passed away at the age of 99 on February 6th in Wuhan because of the illness. Huang was known as the chief designer of China’s first nuclear submarines (核潜艇) .
Huang played a key role in developing China’s first nuclear submarines, the Type 091 and Type 092, from the 1950s to the1980s. For 30 years, his work had been a secret. In 1970, he and his team successfully launched (发射) China’s first nuclear submarine, and it performed better than the first US nuclear submarine launched in 1954.
As China’s navy started to share more information, stories about Huang and his team became widely known. People started to call him the “ △ ”.
Huang was born in Guangdong Province in 1926. He studied shipbuilding at National Chiao Tung University (now Shanghai Jiao Tong University) from 1945 to 1949. Later, he became one of the first scientists to work on China’s nuclear submarine program. In 1958, because of his excellent skills, Huang was secretly called to Beijing. For the next 30 years, he worked hard in secret on China’s nuclear submarine program. He and his team started from nothing and overcame many difficulties to build the country’s first nuclear submarine.
Huang cared a lot about the future of science and technology in China, as well as the growth of young people. He gave away over 20 million yuan of his money to support scientific research, education, and the spread of scientific knowledge. He spent his whole life developing China’s nuclear submarine industry (产业) and national defense (国防) , which encourages us to try our best to make the country stronger. In 2019, Huang Xuhua was awarded the Medal of the Republic.
39．Which one is the best to fill in the blank
A．Teacher of the Year. B．Founder of Shanghai Jiao Tong University.
C．Best Scientist in the World. D．Father of China’s Nuclear Submarines.
40．What can we know about Huang’s work on nuclear submarines
A．It was easy and quick. B．It was secret and challenging.
C．It was public and simple. D．It was boring and unimportant.
41．What does the underlined word “overcome” in paragraph 4 mean
A．take in B．give away C．deal with D．look up
42．Which of the following is the right order of Huang Xuhua’s life
①Received the Medal of the Republic.
②Was called to Beijing to work on the nuclear submarine program.
③Studied at National Chiao Tung University.
④Launched China’s first nuclear submarine.
A．③-②-④-① B．②-③-④-① C．①-④-②-③ D．④-①-③-②
43．What can we learn from Huang Xuhua’s life
A．Study hard and make our country strong. B．Only care about our own interests.
C．Keep secrets all the time. D．Work hard in our lives.
Animals grow old, just like humans. What do you think of older wild animals Are they important to their groups A new study has found that protecting older wild animals is very important because they have knowledge to help other members survive (生存).
▲When older birds have baby birds, they are better at providing food and finding a good place to live. This makes it more likely for the babies to survive. Older elephants are good at remembering which animals are friendly and which ones aren’t. They are also better at knowing possible dangers. Grandmother orcas (killer whales) use their knowledge to help their families find food when there’s not much around.
Older animals face serious problems in some parts of the world. For example, fishing has caused the number of older fish to fall greatly. In some places, because poaching is common, older animals are at risk more than young ones.
The researchers, from Charles Darwin University in Australia, said humans must do more to make sure that enough old animals survive. They’ve asked the International Union for Conservation of Nature to help researchers come up with ways to protect those at risk. They also said that we should try to stop catching too many old fish to protect them.
44．How does the writer lead into the topic
A．By telling a joke.
B．By sharing a story.
C．By asking questions.
D．By giving examples.
45．Which of the following can be put in the blank “ ▲ ” in Paragraph 2
A．Older animals are at risk now and their numbers fall.
B．Older animals are better at finding good places to live.
C．Older animals can help their members in many ways.
D．There are many ways to protect older animals in danger.
46．What does the underlined word “poaching” in Paragraph 3 mean
A．feeding animals
B．catching animals
C．studying animals
D．protecting animals
47．What is the purpose of the passage
A．To show the study of Australian researchers.
B．To discuss how animals grow old in the wild.
C．To show why old animals need special protection.
D．To compare different ways of protecting animals.
The Yellow Mountain is one of the most famous and beautiful places of interest in China. It lies in the south of Anhui Province. Every year, thousands of visitors from different places travel there to enjoy its amazing natural beauty.
Nowadays, we have two great ways to visit the Yellow Mountain: online tours and real trips. Taking an online tour is easy and convenient. We can sit in front of the screen and watch clear videos about the mountain. We can enjoy strange rocks, lovely pine trees and the wonderful sea of clouds without going out. We can also learn about its long history and special culture from the online guide. It saves much time and money, and we can visit it at any time we like.
However, many people still like real trips better. When they climb the mountain by themselves, they can touch the green plants, feel the cool wind and take nice photos with their families. They can stop walking anytime to enjoy the fantastic views around them. It makes them feel relaxed and close to nature. It is also a good way to take exercise and stay healthy.
Both ways are helpful and interesting. Online tours help us know more about the Yellow Mountain easily, and real trips bring us real fun and great memories. Which way of visiting would you like to choose
48．Where is the Yellow Mountain
A．In the north of China. B．In the south of Anhui.
C．Near Beijing. D．In Shanghai.
49．What is NOT mentioned about the Yellow Mountain in the passage
A．Strange rocks. B．Beautiful pine trees.
C．The sea of clouds. D．Modern buildings.
50．Which is NOT the advantage of online tours according to the passage
A．Convenient. B．Saves time.
C．Saves money. D．You can touch everything.
51．Why do many people still like real trips better
A．They can enjoy views freely and take photos. B．They are much cheaper.
C．They don’t need to climb. D．They are faster.
52．What does the writer think of the two ways
A．Online tours are better. B．Real trips are better.
C．Both are helpful. D．Neither is useful.
参考答案
题号 1 2 3 4 5 6 7 8 9 10
答案 B C B B B A B B C A
题号 11 12 13 14 15 16 17 18 19 20
答案 D D C A D A D B B A
题号 21 22 23 24 25 26 27 28 29 30
答案 A D C B A A D D A C
题号 31 32 33 34 35 36 37 38 39 40
答案 D A B A B C A B D B
题号 41 42 43 44 45 46 47 48 49 50
答案 C A A C C B C B D D
题号 51 52
答案 A C
1．B 2．C 3．B 4．B 5．B
本文主要介绍了许多学生在课余时间探索大自然的情况，包括探索自然所需的工具、主要进行的活动以及这一爱好对学生产生的积极影响。
1．文章首句提到：“Many students like looking into nature in their free time.”。这明确指出了学生在空闲时间喜欢做的事情是探索大自然。
2．文中提到：“…they need to take notebooks, pencils and even cameras.”。文中列举了学生研究自然所需的工具包括笔记本、铅笔和相机，其中并未提及汽车。
3．文中提到：“They write down what they see and take photos.”。这句话直接描述了学生在探索自然过程中会记录所见所闻。
4．文中提到：“Some students join school clubs to share their findings.”。由此可知，学生加入学校社团的目的是为了分享他们的发现。
5．文章最后一句提到：“Looking into nature makes students…care more about the environment.”。这直接说明了探索自然能够帮助学生更加关爱环境。
6．A 7．B 8．B 9．C 10．A
本文主要讲述了自然界中每一种生物都有其作用，维持着生态平衡，同时指出人类活动会破坏自然平衡，强调了了解自然、与动植物和谐共处的重要性。
6．文章第1段“Bees help flowers make seeds.”表明蜜蜂帮助花朵结种子。
7．文章第1段“Bats eat insects and control their numbers.”表明蝙蝠以昆虫为食。
8．文章第2段“But when people cut down forests or pollute rivers, they break the balance of nature.”表明砍伐森林会破坏自然平衡。
9．文章第2段“If we learn more about nature, we will know how important it is to live in peace with wild animals and plants.”表明更多了解自然会让我们明白自然的重要性。
10．文章第1段介绍了自然界中生物的作用，第2段讲述了人类活动对自然平衡的破坏以及了解自然的重要性，全文围绕“自然及其平衡”展开。选项A“探究自然及其平衡”能概括全文内容。
11．D 12．D 13．C
本文是一篇说明文，介绍了镇江这座历史文化名城孕育的三位杰出的人物：沈括、米芾和茅以升，分别阐述了他们在科学、艺术和工程领域的贡献。
11．最后一段明确指出：“Mao Yisheng designed and built the Qiantang River Bridge, the first modern large-scale bridge designed and built by Chinese people.” 这说明茅以升设计并建造了中国人自行设计和施工的第一座现代大型桥梁。
12．第三段介绍：“Mi Fu was one of the most famous calligraphers and painters in the Northern Song Dynasty.” 这表明米芾是北宋时期著名的书法家和画家。
13．全文围绕镇江的三位历史名人展开，分别介绍了科学家沈括、书画家米芾和桥梁专家茅以升，因此最佳标题应概括为镇江的三位伟大人物。
14．A 15．D 16．A 17．D 18．B
本文是一篇说明文，主要讲述了三星堆遗址的发现、其与金沙遗址可能存在的联系，以及关于三星堆人迁徙至金沙原因的推测，包括地震、洪水等线索，同时强调三星堆和金沙是古蜀文明的瑰宝，有待进一步研究揭示更多秘密。
14．第一段提到：“In 1929, Sanxingdui was first found in Southwest China’s Sichuan province”，说明三星堆首次被发现是在1929年。
15．第二段提到：“For this reason, some scholars believe that the people from Sanxingdui may have moved their homes to Jinsha. But it remains a mystery.”，结合前文可知，这里的“it”指的是三星堆的人为什么搬到金沙这件事。
16．第五段提到：“In the Han Dynasty book The Chronicles of the Kings of Shu (《蜀王本纪》), it is written that ancient floods poured from a mountain in a spot, which suggests the river flowing in a new direction.”，说明《蜀王本纪》中记录的洪水从山上倾泻而下，暗示河流流向改变，这一记录有助于解开三星堆人迁徙的谜团。
17．第二段提到：“They found a gold crown with similar engraved pattern (纹饰) of fish, arrows and birds to other golden objects found at Sanxingdui.”，说明三星堆和金沙遗址出土的金色物品有相似的纹饰，由此可推断出三星堆和金沙共享相同的文化。
18．文章主要围绕三星堆和金沙遗址的未解之谜展开，包括三星堆人迁徙的原因等，所以最有可能在《世界未解之谜》这本书中读到这篇文章。
19．B 20．A 21．A 22．D
本文是一篇记叙文，主要讲述了1989年一支包含中国科学家秦大河在内的国际南极科考队，在遭遇突发暴风雪、物资短缺、队员生病等困境时，依靠团队合作互相扶持，最终全员幸存并完成科研任务的故事，诠释了团队合作的重要性。
19．原文第一段直接提到：“In 1989, an international team of 6 explorers went there to do scientific research.” 明确说明他们前往南极的目的是做科学研究，对应选项B。
20．结合上下文，暴风雪导致帐篷被吹倒、物资减少、设备损坏、队员生病，但后文描述队员们开始分工合作解决问题（修帐篷、照顾队友等），说明此时他们没有慌乱、焦虑。因此“panic”在此处意为“惊慌、焦虑”，与选项A（Worry“担心、忧虑”）含义最接近。
21．根据原文情节顺序，第一段有：“At first, everything went well. They set up a small camp and started their work.”，对应②；“But one day, a strong snowstorm came suddenly.”，对应①；第二段描述队员们分工合作解决困难：“They encouraged each other every day, saying ‘We can do it together.’”，对应③；最后一段有：“With their great teamwork, all members survived and finished their research.”，对应④；因此正确顺序为②①③④，对应选项A。
22．原文结尾明确点题：“Qin Dahe and his teammates proved that no matter how hard the challenge is, teamwork can help us get through it. It is the most powerful strength in a difficult journey.”，因此文章的核心主旨是“团队合作帮助探险者渡过难关”， 选项D最贴合文章主旨。
23．C 24．B 25．A 26．A 27．D
本文是一篇说明文，介绍了关于春天的几个有趣事实：天气多变、动物在春天产崽、春天让人心情变好，以及南北半球春季开始时间不同。
23．原文提到“warm air from the south and cold air from the north are fighting”，冷暖空气交锋会导致天气不稳定、频繁变化，因此应填changeable。
24．原文写道“They come into the world when they can get more time to enjoy the sunshine and warmer weather”以及“during spring when food is easy to find”，因此，春天出生是因为温暖和食物充足。
25．原文提到“As the weather gets warmer, your brain makes more serotonin, something that makes you feel good. That’s why people feel more positive.”，随着天气变暖，你的大脑会产生更多的血清素，这会让你感觉良好，这就是为什么人们感觉更积极，其中“positive”在此意为“积极、乐观、充满希望”。
26．原文指出“In the Northern Hemisphere, spring begins in March, but for people in the Southern Hemisphere, such as Australians, it starts in September. So, while some people are enjoying spring, people in the other hemisphere are experiencing fall!”，因此，北半球秋天时，南半球正是春天。
27．A项句意为“千山鸟飞绝，万径人踪灭。”出自柳宗元《江雪》，描写冬季大雪封山的寂静景象，与春天无关；B项句意为“停车坐爱枫林晚，霜叶红于二月花。”出自杜牧《山行》，描写秋季枫叶经霜变红的景色，虽提到“二月花”作对比，但主体是秋天，与春天无关；C项句意为“接天莲叶无穷碧，映日荷花别样红。”出自杨万里《晓出净慈寺送林子方》，描写夏季荷花盛开的壮丽景象，与春天无关；D项句意为“随风潜入夜，润物细无声。”出自杜甫《春夜喜雨》，描写春雨在春夜悄然滋润万物的情景，正是春天的典型特征。故选D。
28．D 29．A 30．C
本文主要介绍了中国著名科学家黄旭华的生平事迹，包括他在中国首艘核潜艇研发中的关键作用、所获荣誉以及他对中国科技和国防事业的贡献。
28．根据文章第二段“Huang played a key role in developing China’s first nuclear submarines, the Type 091 and Type 0911, from the 1950s to the 1980s.黄在20世纪50年代至80年代期间对中国首艘核潜艇（091型和 0911型）的研发过程中发挥了关键作用。”和第三段“As China’s navy started to share more information, stories about Huang and his team became widely known. People started to call him the”可知，黄旭华在中国首艘核潜艇的研发中发挥了关键作用，随着中国海军开始分享更多信息，关于黄旭华和他的团队的故事广为人知，人们开始称他为“中国核潜艇之父”。选项D“中国核潜艇之父”符合题意。
29．根据文章第四段“ He studied shipbuilding at National Chiao Tung University (now Shanghai Jiao Tong University) from 1945 to 1949.”可知，黄旭华1945年至1949年在国立交通大学（现上海交通大学）学习造船，即③；根据文章第四段“In 1958, because of his excellent skills and qualities, Huang was secretly called to Beijing.”可知，1958年，由于出色的技能和素质，黄旭华被秘密召到北京，即②；根据文章第二段“In 1970, he and his team successfully launched China’s first nuclear submarine”可知，1970年，他带领团队成功研制并下水了中国第一艘核潜艇，即④；根据文章第五段“In 2019, he was awarded the Medal of the Republic”可知，2019年，黄旭华被授予共和国勋章，即①。因此，黄旭华的人生顺序是③-②-④-①。
30．根据文章第二段“For 30 years, his work had been a secret.”可知，黄旭华的工作保密了30年，所以他的家人可能并不知道他的具体工作。选项C“他的家人知道他的工作并非常支持他”与文章内容不符。
31．D 32．A 33．B 34．A
本文介绍了植物之间通过化学物质、声音和“林下网络”进行交流的科学研究发现。
31．第二段指出植物受昆虫攻击时的反应：“The plant gives out chemicals from the leaves...Some of these chemicals drive insects away. Others attract the wasps! The wasps kill the insects”，说明植物会释放化学物质作为警告或求助信号。
32．最后一段指出：“Scientists are learning more every day...Maybe one day we will know enough...to be able to ‘talk’ with them ourselves.”，说明作者对进一步研究抱有希望。
33．文章结构为：第一段引出话题，第二、三、四段分别介绍三种交流方式，第五段总结展望，符合“总—分—总”结构，对应B项。
34．全文围绕植物之间的交流方式展开，介绍了化学信号、声音和“林下网络”，因此“植物的秘密语言”是最佳标题。
35．B 36．C 37．A 38．B
本文介绍了2006年科学家将太阳系行星数量从9颗改为8颗的原因，并说明人类对自然的认知会随时间和新发现而改变。
35．第一段“In 2006, scientists changed the number of planets in our solar system from nine to eight.”指出现在太阳系有8颗真正的行星。
36．根据倒数第二段“Pluto failed the third rule, so it was decided that it doesn’t belong to the list of true planets”，结合行星定义第三条“It must clear things in its way”可知，冥王星被移除是因为没有清除轨道上的其他天体。
37．最后一段“This change teaches us that our understanding of nature can change over time.”指出这一变化教会我们人类对自然的理解会随时间而改变。
38．文章列出的行星定义三条规则“1. It must move around the sun. 2. It must be round (or nearly round). 3. It must clear things in its way.”表明“必须非常大”不在三条规则中。
39．D 40．B 41．C 42．A 43．A
本文是一篇记叙文，主要讲述了中国核潜艇总设计师黄旭华院士的生平事迹，介绍了他为我国核潜艇事业和国防建设做出的卓越贡献。
39．第一段指出：“Huang was known as the chief designer of China’s first nuclear submarines”，因此他被人们尊称为“中国核潜艇之父”。
40．第二段和第四段提到：“For 30 years, his work had been a secret”和“He and his team started from nothing and overcame many difficulties”，说明他的工作是保密且充满挑战的。
41．第四段中划线词“overcome”出现在“He and his team started from nothing and overcame many difficulties to build the country's first nuclear submarine”一句中，结合语境，其含义为“克服、应对”，deal with意为“应对、处理”与其意思相近。
42．第四段提到：“He studied shipbuilding at National Chiao Tung University from 1945 to 1949”，随后“In 1958...Huang was secretly called to Beijing”，再到第二段“In 1970, he and his team successfully launched China’s first nuclear submarine”，最后“In 2019, Huang Xuhua was awarded the Medal of the Republic.”，因此正确的时间顺序是③-②-④-①。
43．最后一段提到：“He spent his whole life developing China’s nuclear submarine industry and national defense, which encourages us to try our best to make the country stronger”，说明我们可以从他身上学到努力奋斗、为国家强盛而拼搏的精神。
44．C 45．C 46．B 47．C
本文通过科学研究阐述了年长野生动物在种群生存中的关键作用，揭示其生存危机，并呼吁加强对老年动物的保护。
44．根据“What do you think of older wild animals Are they important to their groups ”可知，文章开头通过提出“你如何看待年老的野生动物？它们对群体重要吗？”这样的问题来引出下文，所以作者是通过提问开始这篇文章的。
45．根据“When older birds have baby birds, they are better at providing food and finding a good place to live. This makes it more likely for the babies to survive. Older elephants...”可知，空处后文说明年长动物如何提升种群生存率，所以空处应表达“年老的动物可以在很多方面帮助它们的种群”。
46．根据“For example, fishing has caused the number of older fish to fall greatly.”及“...older animals are at risk more than young ones.”可知，捕鱼导致老年鱼数量大幅下降，年老的动物更处于危险中，可推断poaching指“非法捕猎”。
47．根据“A new study has found that protecting older wild animals is very important because they have knowledge to help other members survive (生存).”可知，本文通过科学研究阐述了年长野生动物在种群生存中的关键作用，揭示其生存危机，并呼吁加强对老年动物的保护。
48．B 49．D 50．D 51．A 52．C
本文是一篇说明文，主要介绍了黄山的地理位置，以及游览黄山的两种方式——线上游览和实地旅行，并分别阐述了两种游览方式的特点和优势，最后表明两种方式各有价值，既有用又有趣。
48．文章第一段明确提到：“It lies in the south of Anhui Province”，这直接说明黄山位于安徽省的南部。
49．文章第二段明确提到：“We can enjoy strange rocks, lovely pine trees and the wonderful sea of clouds without going out”，文中提及了黄山的奇松、怪石和云海。
50．文章第二段介绍线上游览的优势：“Taking an online tour is easy and convenient”以及“It saves much time and money”，说明线上游览便捷、省时间、省钱。
51．文章第三段说明人们更喜欢实地旅行的原因：“They can stop walking anytime to enjoy the fantastic views around them”以及“take nice photos with their families”，即人们可以自由欣赏风景并和家人拍照。
52．文章最后一段开头明确指出：“Both ways are helpful and interesting”，这直接说明作者认为游览黄山的两种方式都是有用的。

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