Unit 3 Computers 阅读理解 专练（含解析）牛津深圳·广州版 英语八年级上册

中小学教育资源及组卷应用平台
牛津深圳版 英语八年级上册 Unit 3 Computers 阅读理解 专练
Do you like plants What’s your favourite plant There are many kinds of plants in the world. Now I’ll tell you two kinds of them. They are very special and they are quite different from the plants that we often see.
Rafflesia arnoldii (大王花)People discovered this flower in Sumatra (苏门答腊) in 1822, and it is considered to be the largest (最大的) flower in the world. It can grow up to one meter in diameter (直径), and weigh as much as 25 pounds. Though Rafflesia arnoldii is a large flower, it is very difficult to find. It takes 9 to 21 months for the plant to develop, but its flower lasts for only five days. The flower can reach up to 20 feet tall and 16 feet wide, but it smells awful.
Dancing plant (跳舞草)Have you ever watched a plant move all by itself The dancing plant, also known as the telegraph plant, actually moves its leaves. It can grow up to 2 meters high. The period of its movements is from 3 to 5 minutes, and when all of the leaves move, it creates a very cool effect. The plant lives in Asia and can also be found in the South Pacific. It is pretty wonderful. This plant is famous for being a favourite of Charles Darwin, and it is important in his book The Power of Movement in Plants.
1．About ________ years ago, people discovered Rafflesia arnoldii.
A．185 B．195 C．205 D．215
2．People discovered ________ in Sumatra.
A．red rose B．Rafflesia arnoldii C．telegraph plant D．dancing plant
3．How does Rafflesia arnoldii smell
A．Terrible. B．Fresh. C．Sweet. D．Wonderful.
4．How high can the dancing plant grow up to
A．One meter. B．Two meters. C．Sixteen feet. D．Twenty feet.
5．Where can you find the dancing plant
A．In Asia. B．In the North Pacific. C．In Africa. D．In Canada.
China’s Grand Canal
Most people have heard of the Great Wall, but not many people outside China know about the Grand Canal. This man-made waterway—known in China as Da Yun He—is 1,700 kilometers long and some parts of it are more than 2,000 years old. It links the north of China with Hangzhou, a city in the southern part of the country. It’s the longest man-made waterway in the world.
It was built as a way to transport grain (谷物) from the rich agricultural land（富饶的农田） in China’s south to cities in the north. In fact, it's not one canal, but a system of canals and rivers linked together. It’s still an important part of the transport system in China. Thousands of ships use it every day to transport grain and many other types of goods（货物）.
Now the Chinese government is doing new work on the Grand Canal. It is making parts of it deeper, so bigger ships can use it. The canal will also help to move water. There is a lot of rain in the south of China, but not as much in the north. The canal will carry millions of liters (公升) of water from the south to the north.
The Grand Canal is much less famous than the Great Wall, and not very many tourists visit it. But it’s possible to go on a cruise (乘船游览) along some of the oldest parts of the canal. Passengers on these cruises can see beautiful parts of China that other visitors don’t see.
根据短文内容，选择最佳答案。
6．From the passage, we know that the Grand Canal is ________.
A．more than two thousand years old
B．more famous than the Great Wall
C．the longest man-made waterway
7．What does the underlined word “links” mean in Paragraph 1
A．Connects. B．Compares. C．Competes.
8．What is the main idea of Paragraph 2
A．The Grand Canal is helping to move water.
B．Why the canal was built and how it is used now.
C．The Grand Canal was used for transporting grain.
9．The writer wrote this passage to _________.
A．describe how beautiful the Grand Canal is
B．introduce how important the Grand Canal is
C．explain why few people visit the Grand Canal
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A．It’s a restaurant. B．It’s a supermarket.
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11．How long is Pizza Man open on weekends
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A．6 dollars. B．8 dollars. C．10 dollars. D．12 dollars.
13．How many ways can we pay for the meals
A．Three. B．Four. C．Five. D．Six.
14．What is TRUE according to the poster
A．We can only order food in Pizza Man. B．We can have breakfast in Pizza Man.
C．We can call 67883361 to order food. D．There’s no special day on weekends.
Adolescence (青春期) is the time between being a child and full adult (成人). Adolescence is a difficult process (过程) for teenagers. The reason is that both their minds and bodies make great changes. The changes may cause many problems if teenagers don’t know what to do with them. So it’s necessary to learn something about the changes.
Different people begin adolescence at different ages. Usually girls start adolescence two years earlier than boys. For both girls and boys, adolescence is usually over by the age of 18.
Teenage boys at this time often begin to take unnecessary risks. They want others to accept them. They are also easily angry with others and fight more. So, they need to think before they act and make good decisions for themselves.
A girl’s personality often does not develop in the same way as a boy’s. Teenage girls sometimes lose confidence (信心) in themselves. They aren’t sure about their own feelings, but they are usually afraid to tell others about their problems.
We can do a lot to care for and help teenagers. At the same time, parents can also tell teenagers about what is happening to them and help them to know themselves better. Everyone plays a part in making sure that young people grow into healthy adults.
15．Why is adolescence a difficult process for teenagers according to the passage
A．Because teenagers find it is hard for them to lose confidence.
B．Because teenagers have difficulty accepting others’ advice.
C．Because teenagers’ parents always ask them to be excellent.
D．Because both teenagers’ minds and bodies change.
16．According to the third paragraph, boys ______ during adolescence.
A．get angry easily B．never take risks
C．lose confidence in themselves D．understand others better
17．What does the underlined word “personality” mean in Chinese
A．力气 B．财富 C．性格 D．挑战
18．What does the last paragraph mainly talk about
A．The writer’s worry about teenagers’ exam results.
B．The writer’s advice about how to care for and help teenagers.
C．The writer’s opinion about why adolescence is important to teenagers.
D．The writer’s prediction about adolescence and the future.
19．What could be the best title for the passage
A．Some facts about risks. B．Differences between boys and girls.
C．Young people’s changes at school. D．Some information about adolescence.
①In a room at Stanford University (大学), scientists (科学家) are studying a small animal called gecko. It’s an amazing animal because it can move very quickly up and down a tree and it can even walk upside down (倒立行走) on ceilings (机器人). The scientists are quite interested in the gecko’s feet. They want to use the same design on their own robots. The metal robot looks like the gecko. It has four feet which can also walk up walls made of glass. However, it still has a more difficult time when it tries to walk upside down.
②Animals and plants can teach people a lot about design and engineering (工程学). When scientists and engineers have a problem, nature (大自然) often has the answer. This science is called biomimetics (仿生学). Bio means “studying living things” and mimetics means “copying (模仿) the movement of things”. In other words, scientists study animals and plants in order to copy the design.
③Takea whale (鲸) as an example. Engineers in Canada are studying their flippers (鳍) because they move very fast through water. The engineers think the shape (形状) can also make the wind turbines (涡轮机) move faster. The boxfish is another animal from the sea which is helping car makers in Germany. Mercedes Benz (奔驰) is using the shape of the fish for one of its new cars. The shape makes it faster and more fuelefficient (节能的).
④Velcro is probably the most famous example of biomimetics. Most people have some Velcro on their clothes. It was invented (发明) by the Swiss engineer, George de Mestral in 1948. He was walking in the countryside when he pulled a plant’s bur (刺果) from his trousers. He noticed how the bur stuck so well to his clothes. He worked on his idea and the result was Velcro and it became an alternative to the traditional zip (传统的拉链).
⑤In a word, biomimetics has helped to design our world and there are many more future possibilities (可能性). Unluckily, it might take a long time to discover (发现) all the possibilities. This isn’t really surprising because it’s taken nature thousands of years to design its animals and plants.
20．The writer organizes Paragraph 1 by ________.
A．using pictures B．using numbers
C．giving an example D．showing reasons
21．What does the underlined word “it” in Paragraph 3 refer to (指) ________
A．The whale. B．The boxfish.
C．The wind turbine. D．The car.
22．Which of the following shows the structure (结构) of the passage （P＝Paragraph）________
A． B． C． D．
23．What does the underlined word “alternative” mean in Chinese ________
A．产物 B．原材料 C．制造商 D．替代品
24．What can we infer (推断) according to the passage ________
A．Nature can provide people with ideas to make better things.
B．George de Mestral invented the traditional zip too.
C．The robot designed at Stanford University can walk upside down easily.
D．Mercedes Benz is using the shape of the whale for one of its new cars.
On April 24, 2021, 15 people came out of a cave（洞穴）in France. As part of an experiment（实验）, they spent the last 40 days underground.
The “Deep Time” experiment was run by the Human Adaptation Institute （HAI）. The HAI is led by Christian Clot who took part in the experiment with seven other men and seven women. They went into the Lombrives cave together. It is one of the largest caves in Europe.
The 15 people lived inside the dark cave for 40 days with no connection to the outside world. It was cool inside the cave and the air was very wet. The campers slept in tents. If they wanted light, they had to make it themselves by riding a special bike. They had to get all of their water themselves by pulling it up from a well（井）deep below the cave.
One of the most important parts of the Deep Time experiment was studying how our brains record time when there are no outside clues, like clocks or the movement of the sun. The campers could sleep and eat whenever they wanted. Over time, different people developed different schedules（日程安排）. Because there were no clocks, they counted the days according to how many times they slept.
During their time in the cave, the campers took on different small jobs and projects. Seeing how they worked together was another part of the experiment. For many campers, working on group projects was especially hard, since it was very difficult to set the meeting time.
Finally, at 10: 30 on the morning of April 24, the campers left the cave and saw sunlight for the first time in 40 days.
25．When did the campers go into the Lombrives cave
A．On April 15. B．On April 24. C．On March 15. D．On March 18.
26．How many campers took part in the experiment
A．Fourteen. B．Fifteen. C．Sixteen. D．Seventeen.
27．What does the third paragraph mainly tell us
A．The campers’ lives in the cave.
B．What the campers needed to finish the experiment.
C．How the campers recorded time during the experiment.
D．The difficulties the campers met during the experiment.
28．What can we infer from the passage
A．Our brains can record time easily without clocks or the sun.
B．It was easy for the campers to live in the cave and finish their work.
C．The campers had many good ways to count how many days they spent in the cave.
D．Having ways to know the time could help the campers finish their group projects better.
Most young boys don’t like growing flowers and watering them. But for 16-year-old Angus, working in the garden isn’t just a hobby—it has changed his life.
Angus has a special illness and his IQ is lower than an ordinary boy. Six months ago, he started learning how to grow flowers. Now, he spends hours in the garden growing flowers, watering and looking after them. “Before working in the garden, it was difficult for Angus to pay attention to class and sometimes he didn’t want to go to school,” said his mother Kim. “Now he can’t wait to go to school and he is happy every day. We can see Angus is able to work in a garden center in the future.”
Research shows that working in the garden improves mental and physics health （身心健康）. In the past, soldiers in Egypt treated their mental problems after war by working in the garden. Even now, some doctors advise people to work in the garden to treat their mental health problems. And doctors also advise young people like Angus to work in the garden.
The lives of hundreds of children in Britain with special needs, like Angus, have been changed by this special kind of education. When working in the garden, children have a chance to learn a lot of important skills, such as how to work with other people and how to take care of plants. Besides, the children become more confident after working in the garden.
29．Angus began to ________ half a year ago.
A．need special help B．learn how to grow flowers
C．have a special illness D．learn how to change his life
30．After working in the garden, Augus ________.
A．likes to go to school B．works in a garden center
C．follows his mother’s advice D．doesn’t go to school any more
31．Which of the following is TRUE about working in the garden
A．Doctors advise all of the young people to work in the garden.
B．Research shows that the lives of all children have been changed
C．This way was used to treat mental problems a long time ago.
D．This way can be used to treat physical problems.
32．The underlined words in the fourth paragraph probably means “________”.
A．working in the garden B．growing flowers
C．working with parents D．learning to work with others
33．What is the last paragraph mainly about
A．How to take care of flowers.
B．How to get a chance to learn things.
C．Advantages （好处）of working in the garden for children.
D．The activities children can do in a garden.
The Classic of Mountains and Seas for ChildrenLanguage: Chinese Age: 7—10 This book simplifies (简化) the ancient Chinese words in The Classic of Mountains and Seas into easy words for children to understand. It is filled with stories about mythical creatures (神兽) and colorful pictures. It can help children develop their imagination and learn traditional Chinese culture. Buy now! It costs 159 yuan. Misty the Cloud: A Very Stormy Day Language: English Age: 3—5 The picture book explains the reasons for lightning (闪电) and thunder (雷) by telling stories of Misty a little cloud with big feelings! It helps children learn natural science. After reading the book, children won’t fear lightning anymore. Buy now! It costs 94 yuan. Detective (侦探) Agency of the Black and White Bear Language: Chinese Age: 6—10 Do you like Detective Conan If yes, this book is a good choice for you. The main character in this book is a detective bear. It combines (结合) fairy tales with reasoning. It is a fun book series with interesting pictures. It can also train children to think logically (有逻辑地). Buy now! It costs 253 yuan.
34．From which book can children learn about traditional Chinese culture
A．The Classic of Mountains and Seas for Children.
B．Misty the Cloud: A Very Stormy Day.
C．Detective Agency of the Black and White Bear.
D．Detective Conan.
35．Children can learn ________ from Misty the Cloud: A Very Stormy-Day.
A．who fears lightning and thunder B．how they can tell stories about the cloud
C．why there is lightning and thunder D．how natural science influences humans
36．Anna wants to buy two Chinese books for her cousin and she should pay ________.
A．159 yuan B．253 yuan C．347 yuan D．412 yuan
Many of us learn how to ride a bicycle at a young age. As we grow older, we may stop riding-most of us go to school by bus or by subway. But whenever we get on a bicycle, it is like we’ve never stopped biking.
This is strange. In many other cases, our memories let us down. We often find it hard to remember the name of a person or a place, don’t we So why can we still ride a bicycle after we stopped riding a long time ago
It turns out that there are many types of memory. They are stored in different parts of our brains. Memories of experiences (e. g. our first day at school) and of factual knowledge (e. g. the capital of France) are called declarative (陈述的) memories. These memories can be communicated to others. Skills such as playing an instrument (乐器) or riding a bike are called procedural (程序的) memories. These memories are responsible for our performance.
Scientists have done many experiments on different memory types. Perhaps the most famous of them was carried out on Henry Gustav Molaison, an epileptic (癫痫患者). In an operation in the 1950s, part of his brain was taken away. After that, the man suffered less from epilepsy. But there was a new problem—he couldn’t remember things!
What went wrong with Molaison’s memory system Through different kinds of tests, scientists found he could learn new skills (slowly, though). However, he could never remember having been trained to learn a new skill. In other words. Molaison could develop new procedural, but not declarative memories.
Scientists have concluded that even with serious brain injuries, procedural memories last much longer. However, they haven’t yet found out why. Some say procedural memories are more lasting because they are stored in the brain’s center.
Now, “just like riding a bicycle” has been used as an idiom (习语). Can you guess its meaning Yes. People use it to describe a skill that, once learned, is never forgotten.
37．The author mentions our difficulty in remembering the name of a person or a place mainly to show that ________.
A．our memories often fail us
B．where are many types of memory
C．it’s hard to forget how to ride a bicycle
D．people become more forgetful as they age
38．Which of the following is an example of procedural memory
A．Playing the violin. B．The locution of Italy.
C．Our first day at school. D．The first time I rode a bicycle.
39．What was Henry Gustav Molaison’s new problem after his operation in the 1950s
A．He couldn’t learn new skills.
B．He couldn’t remember anything.
C．He suffered more often from epilepsy.
D．Je couldn’t develop new declarative memories.
40．We can learn from the article that declarative memories ________.
A．are responsible for our speech
B．are stored on the brain’s surface
C．can be passed on to other people
D．aren’t easily affected by brain injuries
41．Where can we probably read this passage
A．In a science magazine. B．In a novel.
C．In an advertisement. D．In a travel guide.
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A．In a mall. B．In a shop. C．In a supermarket. D．On the Internet.
43．The best birthday gift for your grandpa is ________.
A．some buttons B．a tea pot C．a handbag D．a children bicycle
44．My mother ordered some fashion buttons, and she can get them ________ days later.
A．three B．five C．seven D．ten
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A．two handbags B．500 buttons
C．a handbag and a bicycle D．a tea pot and a handbag
American Apparel American Apparel is known for their cool teen clothes with many choices of colors. Their clothes are typically bright and the sizes are from XS to XL. Prices for most items are from $15 to $80.
Abercrombie & Fitch Abercrombie & Fitch opened over 100 years ago as a men’s outdoor shop. Jeans are a favorite among customers. They offer common sizes only; prices run from $30 to $80 for most clothes.
Old Navy Old Navy offers casual (休闲的) clothes for teens. They are known for their sales, such as $1 flip flops (人字拖), and also for $5 T-shirts to celebrate most holidays, from Fourth of July to St. Patrick’s Day. Old Navy has clothing in both common and plus sizes.
Zara Zara is a popular Spanish store. Zara is for teens going after a more serious, fashion-forward look. Prices are generally $50-$200, and they only provide common sizes.
H & M Swedish store H & M is loved for their European fashionable style at very low prices. What makes it different is that it regularly works with famous designers. Their clothes are on trend. They also offer plus sizes, up to a size 24, in addition to common sizes. Prices run between $20 to $50. H & M offers a 15 percent student discount.
46．Tom plans to go fishing with his friends, and he needs a pair of jeans, which is the best place for him to go
A．H & M. B．Abercrombie & Fitch. C．Old Navy. D．Zara.
47．Jane is a teenage girl who likes bright colors for clothes, now she has 15 dollars to spend on a skirt, which would be a good place for her to buy one
A．American Apparel. B．Abercrombie & Fitch. C．Old Navy. D．Zara.
48．What do Old Navy and H & M have in common
A．Both offer plus sizes as well as common sizes. B．They both have holiday sales.
C．Both offer special treat to students. D．You can have a $5 T-shirt in both shops.
49．What makes H & M different from others
A．Their clothes are cool. B．They offer plus sizes.
C．Their prices are low. D．They work with famous designers regularly.
50．Who may find this article useful
A．Those who want to learn to design clothes.
B．Those who want to buy clothes for the coming season.
C．Those who want to know about American clothes brands.
D．Those who want to travel all over the world.
While the idea behind cloning (克隆) your dead pet sounds like something out of a sci-fi (科幻) novel, the technology is not actually all that new. Briefly speaking, cloning is to make a copy of any living things or a cell (细胞). It is always a hot topic of discussion among scientists and even ordinary people.
You must have heard of the famous sheep, Dolly. It was the first successful man-made cloning animal in 1984. But long before that, in 1958, F.C． Steward grew whole carrot plants from carrot root cells, which encouraged the idea that cloning from animals’ cells may be possible. After more than twenty years, in 2005, the first cloned (克隆) dog—Snuppy was born. It was a pet dog. And scientists were able to re-clone him and create four more “Snuppy” in 2017. While one of them died, the other three were all healthy.
Many people still share concerns about (担忧) cloning animals. They believe that cloning could cause health problems. The cloning company claims that cloned animals have even fewer chances to meet health problems than non-cloned animals. The cloning company hopes that the process will become more common and acceptable.
For pet owner, cloning their dead pets can deal with their sadness. But the cloning process is by no means a quick fix. “It is not a rebirth,” Rodriguez, the manager of a cloning company said. “It’s the memory of that original animal and I think that’s what our clients are hoping to get. I don’t think they want to replace that animal. They’re just looking to get a part of that animal back.”
However, not all people support the idea of cloning. They believe that if cloning is used for bad purpose, it surely will create great problems that we cannot imagine and lead to the destruction of humankind.
51．The first cloning animal came to the world ________.
A．in 1958 B．in 1984 C．in 2005 D．in 2017
52．F.C． Steward got the idea of ________ when he grew whole carrot plants from carrot root cells.
A．cloning animals’ cells B．cloning plants
C．cloning dead pets D．re-cloning Snuppy
53．What does the cloning company think of cloning
A．Cloning animals have more health problems.
B．More and more people will accept the idea of cloning.
C．Cloning animals is not acceptable in society now.
D．Few people support the idea of cloning.
54．Customers hope to get ________ through cloning their beloved pets.
A．the original animals B．the copies of their pets
C．the memory of their pets D．a new pet
55．Some people don’t think cloning is a good idea because ________.
A．cloning may be used for bad purpose B．cloning is bad for animals’ health
C．cloning may cost a lot of money D．cloning is still dangerous
56．Which section in the newspaper does this article probably come from
A．World. B．Art. C．Animals. D．Science.
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Move as Millions, Survive as One
Great white sharks in the Pacific Ocean. Wildebeest in Africa. Arctic terns in the Atlantic. At first, these animals seem completely different. One swims, one walks, and the other flies. But they all have one thing in common. They all migrate.
Some migrating groups move to a place with a better temperature. Some go to find food or water. The groups travel as one, trying to survive （生存）. During the trip, they face many different challenges. One challenge is distance. Some migrating animals take very long trips. They go far away from their home areas. For example, one great white shark swam from Australia to South Africa and back. In nine months, it swam about 20,000 kilometers.
Another challenge is finding enough food and water during the journey. For example, each Mali elephant needs over 200 liters of water each day. To get this, they need to go from one waterhole to another.
In addition, migrating animals have to avoid other animals that want to eat them. For example, the zebra has to stay away from lions. Traveling as a group helps keep them safe. All the zebras in the group can watch for danger. When one zebra is in trouble, the other members make a circle around it.
By working as a group, migrating animals can survive some of the world’s most extraordinary journeys.
60．The main idea of the first paragraph is that ________ animals migrate.
A．not all kinds of B．only similar C．different kinds of D．all kinds of
61．The meaning of the underlined word “migrate” means “________” in Chinese.
A．奔跑 B．迁徙 C．追逐 D．冬眠
62．The passage talks about ________ big challenges for the animals.
A．Two B．three C．four D．five
63．Which of the following statements is NOT true
A．It’s about 20,000 kilometers from South Africa to Australia.
B．A Mali elephant needs more than 200 liters of water a day.
C．Zebras help each other when they are in trouble.
D．They go to a place far away from their homes to get food or water.
64．From the passage, we can infer（推断）that ________.
A．lions may eat zebras B．lions travel in groups
C．lions try to avoid zebras D．lions like to migrate
Summer is coming here, and the weather is becoming hot. Are you drinking enough water Many children aren’t.
Some people do a study on the health of children in the United States every year. The study is just for a group of children. The group of 4,000 children is between 6 and 19. After looking at the study results, we can know that over half of the children need water. It tells us that it is important to drink a lot of water when you exercise or do sports.
Our body is made up of 60% water. If we can’t get enough water, we won’t feel well. And we need more water when we are in hot weather, too.
The American National Agriculture Library says children need between 10 to 14 cups of water every day. This water can come from drinks and foods. All the children need to take a water bottle with much water in it. And they can also get enough water from all kinds of drinks. It’s still a good and useful way.
65．The study is only about the children’s ________.
A．school B．health C．clothes D．life
66．How many children don’t drink enough water according to the study results
A．Over 4,000. B．Over 3,000. C．Over 2,000. D．Over 1,000.
67．If a child is 40 kilos, there is ________ water in his body.
A．40 kilos B．30 kilos C．24 kilos D．16 kilos
68．When do children need to drink much water
A．When they sleep. B．When they read.
C．When they watch TV. D．When they swim.
69．Which of the following is NOT true according to the passage
A．Children need to drink 10 to 14 cups of water every day.
B．Children can’t get enough water from the drinks and foods.
C．Children need to drink much water in hot days.
D．Every child should take a water bottle with lots of water in it.
Space vegetables are grown from seeds (种子) that have been taken to space and brought back to the earth. The seeds are affected by the radiation (辐射) and low gravity in space. When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables. However, some people worry about eating space vegetables. They think that space vegetables might not be good for us and could make us get sick because of the radiation in space. However, people should not be frightened because space vegetables are very healthy.
Here are some facts that you should know about space vegetables.
Space vegetables are grown from seeds that are carefully chosen. When seeds are brought back from space, they are tested to make sure that they will be safe to eat.
Space vegetables are better for you than normal vegetables. For example, space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes.
After genetically modified (转基因) food appeared in the market, people worried that they were eating unknown things. For example, if nut genes (坚果基因) are put inside potatoes, people allergic (过敏的) to nuts might get sick from eating these potatoes because they do not know they are also eating nuts. Unlike genetically modified food, space vegetables have not been genetically changed. This means that no new genes are put into the vegetables. Therefore, there are no dangers of eating something unknown.
70．According to Paragraph One, how are the space vegetables
A．More delicious. B．Healthier and bigger.
C．More dangerous. D．Cheaper and healthier.
71．According to Paragraph 4, how long can normal tomatoes stay fresh
A．For seven days. B．For twenty days.
C．For thirteen days. D．For twenty-seven days.
72．What’s the difference between space vegetables and genetically modified food
A．Space vegetables have no new genes.
B．Space vegetables are grown in space.
C．Space vegetables have nothing unknown.
D．Space vegetables are genetically change.
73．What does the writer want to tell us
A．The seeds of space vegetables are taken to space.
B．Everybody worries about eating space vegetables.
C．Space vegetables are safe and good for people.
D．Space vegetables bring us illness because of the radiation.
①Millions of people around the world cook their food on fire every day. People must spend lots of money on cooking fuel. However, there is a much easier and cheaper way to cook using energy from the sun.
②Solar cookers have been used for centuries. A Swiss scientist made the first solar cooker in 1777. Today, people are using solar cookers in many countries around the world. People use them to cook food and to heat drinking water.
③There are three kinds of solar cookers. The first is a box cooker. It is designed with a special wall that collect sunshine into the box. A box cooker is good for slow cooking of a lot of food.
④The second kind of solar cooker is a panel cooker. It has several flat walls that collect the sunshine onto the food. People can build panel cookers quickly. They do not cost much. In Kenya, for example, panel cookers cost just two dollars.
⑤The third kind of solar cooker is a parabolic(抛物线的) cooker. It has rounded walls that collect sunlight into the bottom of the cooker. Food is cooked quickly in parabolic cookers. However, these cookers are hard to make. They must be moved again and again to follow the sun. Parabolic cookers can also cause burns and eye injuries if they are not used correctly.
⑥You can make solar cookers from boxes or heavy paper. They will not catch fire. Paper burns at 232℃. A solar cooker never gets hotter than that. Solar cookers cook food at low temperatures over long time. This allows people to cook food and do other things at the same time.
74．What can we learn from the passage
A．The first solar cooker was made by a Swiss scientist.
B．Cooking on fire is a much easier and cheaper way.
C．Box cookers can be dangerous sometimes.
D．Solar cookers can get hotter than 232℃.
75．A parabolic cooker ________.
A．has several flat walls B．is good for slow cooking
C．has rounded walls D．has a special wall and a box
76．According to the passage, ________ costs very little.
A．a box cooker B．a panel cooker C．a parabolic cooker D．a fire cooker
77．What is the structure of this passage
A．①/②③④⑤/⑥ B．①②/③④⑤/⑥
C．①/②③④⑤⑥ D．①②/③④⑤⑥
As space science develops, man has learned more and more about space. Space is not only amazing but also dangerous. While working in space, spacemen are facing danger.
Scientists have found out that radiation (辐射) is the greatest danger to spacemen in space. When spacemen are working in space, they are in danger of radiation from the sun and other stars, which is bad for their health. The damage done by radiation won’t be discovered until their children or even grandchildren are born. Some special medicine may work a little, but no really helpful medicine has been found.
Space junk is also thought to be a great danger to spacemen. It’s reported that there are 9,000 man-made things flying in space. About 30% of these are man-made satellites (卫星), 10% are spaceships, and the rest are space junk. An explosion (爆炸) in 1999 made a cloud of 300,000 fragments , each at least 4mm in size, and even a small piece of these knocked against a spaceship window and did some damage. Scientists are watching and reporting any possible danger all the time. They are working on helpful ways to deal with space junk.
Although space is really dangerous, it interests everyone on the earth. In the near future, it may become usual for people to spend a few days in a space hotel. We may even choose to leave the earth and live in space in a few years. So we should care for space and do something to help improve the space environment.
78．To spacemen, the radiation from the sun and other stars is ________.
A．good B．helpful C．useful D．harmful
79．The underlined word “fragments” means ________.
A．泡沫 B．碎片 C．烟雾 D．飞碟
80．What does the underlined word “these” refer to
A．Man-made things B．Radiation C．The sun D．Other stars
81．What does the last paragraph mainly want to tell us
A．Space is dangerous. B．The space in the future.
C．Space junk is dangerous. D．People visit space.
82．What is the passage mainly talking about
A．How to protect space. B．The dangers of space.
C．How to avoid the danger in space. D．The success and dangers in space.
Harry Potter and the Deathly Hallows By J.K. Rowling Paperback, 784 pages. Publisher: Arthur a Levine Date: 07/07/2009 Reading level: Age:9-12 Price: $16.69 Deceptively Delicious By Jessica Seinfeld Hardcover, 204 pages. Publisher: Collins Date: 09/01/2007 Reading Level: Parents Price: $12.83
Rich Dad, Poor Dad By Robert T. Kiyosaki Paperback, 266 pages， Publisher: Business Plus Date: 01/01/2010 Reading Level: Age 20-25 Price: $5.59 The Road By Cormac McCarthy Paperback, 304 pages. Publisher: Vintage Books Date: 09/11/2007 Reading Level: Adults Price: $6.50
83．How many books were written for children in the posters above
A．One. B．Two. C．Three. D．Four.
84．Which of the following books is after 2009 in print
A．Harry Potter and the Deathly Hallows. B．The Road.
C．Deceptively Delicious. D．Rich Dad, Poor Dad.
85．How much will Mr. Wang pay for two of the books for adults at least
A．$29.52. B．$12.09. C．$18.42. D．$19.33.
Most of us spend all day at school or work. After a long and busy day, all we want to do is return to a comfortable home. Smart technology (科技) can turn any home into a nicer place to live in.
Smart homes have been around for some time. The Scottish company Pico Electronics invented a type of technology called X10. With X10, household devices (家用设备) like lights and alarms (警报器) can communicate with each other by using radio waves.
Of course, 5G networks have made smart homes much more wonderful than X10. Perhaps the most widely used smart home technology is the voice-activated assistant (语音激活助手) . Google Home and Amazon’s Alexa allow users to interact (互动) with nearly any device in their home simply by speaking a few words. This is especially good for children and disabled people, as they can do things that would usually be too difficult, according to How-To Geek.
Common household devices can become “smart” as well. For example, according to HowStuffWorks, a smart dustbin can record the things you’ve thrown away and place an online order for new things. Smart fridges can create dinner recipes (食谱) using the food inside.
But it’s not just about convenience. Smart homes are also good for the environment. By turning off devices that you’re not using, smart homes can lower the electricity you use. Using less energy means that we use fewer natural resources, which is good for the environment.
86．How does X10 technology make household devices communicate with each other
A．By using voices. B．By using radio waves.
C．By using lights. D．By using a 5G network.
87．Why are smart homes better for the environment
A．They use solar energy. B．They have smart trash bins.
C．They can help us save energy. D．They are built with special materials.
88．What can we learn from the passage
A．Google Home helps old people a lot.
B．Smart fridges can cook meals by themselves.
C．Smart homes make our life easier and the environment better.
D．Common household devices can become smart with X10.
89．In which part of the newspaper would you probably read this article
A．Environment. B．Local News. C．Education. D．Science.
参考答案：
1．B 2．B 3．A 4．B 5．A
【导语】本文主要介绍了两种特别的植物，大王花和跳舞草。
1．细节理解题。根据第一个表格的“People discovered this flower in Sumatra (苏门答腊) in 1822”可知人们于1822年在苏门答腊发现了这种花，因此大约是195年前发现的。故选B。
2．细节理解题。根据第一个表格的“People discovered this flower in Sumatra (苏门答腊) in 1822, and it is considered to be the largest (最大的) flower in the world.”可知人们于1822年在苏门答腊发现了这种花，它被认为是世界上最大的花。因此是大王花。故选B。
3．细节理解题。根据第一个表格的“The flower can reach up to 20 feet tall and 16 feet wide, but it smells awful.”可知这种花可以达到20英尺高，16英尺宽，但它闻起来很难闻。故选A。
4．细节理解题。根据第二个表格“It can grow up to 2 meters high.”可知它可以长到2米高。故选B。
5．细节理解题。根据第二个表格“The plant lives in Asia and can also be found in the South Pacific. ”可知该植物生活在亚洲，也可以在南太平洋找到。故选A。
6．C 7．A 8．B 9．B
【导语】本文介绍了大运河。大运河修建于大约2000年前，是连通中国南方和北方的重要渠道，沿途也有美丽的风景供游客欣赏。
6．细节理解题。根据“It’s the longest man-made waterway in the world”可知这是世界上最长的人工水道，故选C。
7．词义猜测题。根据“It links the north of China with Hangzhou, a city in the southern part of the country. ”可知它连接了中国北部和南部城市杭州。所以单词“links”指的是“connect连接”，故选A。
8．段落大意题。通读第二段可知，本段主要是介绍建这条运河的原因以及是如何使用的，故选B。
9．主旨大意题。根据“Thousands of ships use it every day to transport grain and many other types of goods（货物）.”、“Now the Chinese government is doing new work on the Grand Canal. It is making parts of it deeper, so bigger ships can use it.”以及整个文章的理解可知，本文主要是突出大运河的重要性，故选B。
10．A 11．C 12．C 13．B 14．D
【导语】本文主要介绍了一家披萨餐厅的食物种类，价格，营业时间和订餐电话等内容。
10．推理判断题。根据表格中的“Beef Pizza”“Chicken Pizza”等可推知，Pizza Man是一家餐厅，故选A。
11．推理判断题。根据表格中的“Fri. Sat. Sun. 11 a.m.-10 p.m.”可知，周末餐厅营业时间是上午十一点到晚上十点，营业十一个小时，故选C。
12．推理判断题。根据表格中的“Beef Pizza $ 8”和“Coca Cola $ 4”以及“You can get something at half price on special days!”可知，Alice周三想买一个小牛肉披萨和一大瓶可乐需要花费8+2=10美元，故选C。
13．细节理解题。根据表格中的内容可知，我们可以银联支付，现金支付，微信支付和支付宝支付，故选B。
14．细节理解题。根据表格内容可知，特殊日分别是周二，周三和周四，周末没有特殊日，故选D。
15．D 16．A 17．C 18．B 19．D
【导语】本文介绍了一些关于青春期的信息。
15．细节理解题。根据“Adolescence is a difficult process (过程) for teenagers. The reason is that both their minds and bodies make great changes.”可知，青春期对青少年来说是一个艰难的过程，因为青少年的思想和身体都会发生变化。故选D。
16．细节理解题。根据“They are also easily angry with others”可知，男孩在青春期很容易生气。故选A。
17．词义猜测题。根据“Teenage girls sometimes lose confidence in themselves. They aren’t sure about their own feelings”可知，青春期的女孩有时会对自己失去信心，她们不确定自己的感受，由此可知此处指女孩的“性格”发展与男孩不同，“personality”是“性格”的意思。故选C。
18．主旨大意题。根据“We can do a lot to care for and help teenagers.”和整段内容可知，此段主要是作者给出的如何照顾和帮助青少年的建议。故选B。
19．最佳标题题。通读全文可知，本文介绍了一些关于青春期的信息。故选D。
20．C 21．D 22．B 23．D 24．A
【导语】本文介绍了动植物可以教会人们很多关于设计和工程的知识。当科学家和工程师遇到问题时，大自然往往会给出答案。本文主要是关于科学家们学习研究动植物、并将其优点注入自己的设计发明中，从而为人们的生活带来便利。
20．推理判断题。根据“The scientists are quite interested in the gecko’s feet. They want to use the same design on their own robots. The metal robot looks like the gecko. It has four feet which can also walk up walls made of glass. However, it still has a more difficult time when it tries to walk upside down.”可推测，文章第一段向我们举例说明了这个金属机器人设计的由来。故选C。
21．推理判断题。根据“Mercedes Benz (奔驰) is using the shape of the fish for one of its new cars.”可知，奔驰的一款新车采用了鱼的形状。 由此可推知此处it指代前一句中的车。故选D。
22．篇章结构题。阅读文章可知，第一段模仿壁虎造爬墙机器是一个例子；第二段作者阐述了第一段的例子中的科学原理：讲明之后作者又分别举了第三段和第四段的鲸的鳍；最后一段是结论。B选项结构符合，故选B。
23．词义猜测题。根据“He noticed how the bur stuck so well to his clothes. He worked on his idea and the result was Velcro and it became an alternative to the traditional zip.”他注意到那个刺是如何牢牢地粘在他的衣服上的。他研究了他的想法，结果就是魔术贴，它成为了传统拉链的替代品。由此可推测单词“alternative”在汉语中是“替代品”的意思。故选D。
24．主旨大意题。根据“Animals and plants can teach people a lot about design and engineering (工程学). When scientists and engineers have a problem”以及阅读全文可知，这篇文章我们能推断出大自然可以为人们提供更好的想法。故选A。
25．C 26．B 27．A 28．D
【导语】本文介绍了法国15名露营者在一个山洞中进行了为期40天的深度时间实验。
25．细节理解题。根据“On April 24, 2021, 15 people came out of a cave （洞穴） in France.”“ they spent the last 40 days underground.”可知，在4月24日，他们结束了40天在洞内的生活体验。可知进洞时间为3月15日。故选C。
26．细节理解题。根据“The 15 people lived inside the dark cave for 40 days with no connection to the outside world.”可知，有15人。故选B。
27．主旨大意题。通读第三段可知介绍了这些人在洞穴中是如何生活的。故选A。
28．细节理解题。根据“For many campers, working on group projects was especially hard, since it was very difficult to set the meeting time.”可知，由于不知道时间，他们很难进行小组课题。故选D。
29．B 30．A 31．C 32．A 33．C
【导语】本文讲述了在花园里工作对于人身心健康的好处。
29．细节理解题。根据“Six months ago, he started learning how to grow flowers”可知半年前他开始学习种花，故选B。
30．细节理解题。根据“Now he can’t wait to go to school and he is happy every day. We can see Angus is able to work in a garden center in the future”可知做完花园的活后，Augus喜欢去上学。故选A。
31．细节理解题。根据“In the past, soldiers in Egypt treated their mental problems after war by working in the garden.”可知这种方法很久以前被用来治疗精神问题。故选C。
32．词句猜测题。根据“Even now, some doctors advise people to work in the garden to treat their mental health problems. And doctors also advise young people like Angus to work in the garden.”（即使是现在，一些医生建议人们在花园里工作来治疗他们的心理健康问题。医生还建议像安格斯这样的年轻人在花园里工作。）和“The lives of hundreds of children in Britain with special needs, like Angus, have been changed by this special kind of education.”（在英国，数以百计像Augus一样有特殊需要的孩子的生活被这种特殊的教育改变了。）可知这种特殊的教育是指在花园里工作。故选A。
33．段落大意题。根据“When working in the garden, children have a chance to learn a lot of important skills, such as how to work with other people and how to take care of plants. Besides, the children become more confident after working in the garden.”可知最后一段讲述了孩子们在花园里工作的好处。故选C。
34．A 35．C 36．D
【导语】本文是一篇广告。主要是为孩子们推荐三本书籍。
34．推理判断题。根据“It can help children develop their imagination and learn traditional Chinese culture.”可知，其中的“it”指的是“The Classic of Mountains and Seas for Children”。故选A。
35．细节理解题。根据“The picture book explains the reasons for lightning (闪电) and thunder (雷)”可知，这本书向孩子们解释了为什么会有闪电和雷。故选C。
36．推理判断题。根据“Language: Chinese”，“It costs 159 yuan.”和“It costs 253 yuan.”可知，两本中文书籍共计412元。故选D。
37．B 38．A 39．D 40．C 41．A
【导语】本文主要介绍了人类的两种记忆模式，科学家们对不同的记忆类型做了很多实验。
37．细节理解题。根据“This is strange. In many other cases… we stopped riding a long time ago ”和“It turns out that there are many types of memories.”可知，作者提到很难记的人名和地名是为了表明记忆有很多种。故选B。
38．细节理解题。根据“Skills such as playing an instrument or riding a bike are called procedural memories.”可知，演奏乐器或骑自行车之类的技能称为程序记忆，由此可知，拉小提琴是演奏乐器，属于程序记忆。故选A。
39．细节理解题。根据“But there was a new problem—he couldn't remember things! … In other words, Molaison could develop new procedural, but not declarative memories.”可知，Molaison术后出现的新问题是：他不能开发新的陈述性记忆。故选D。
40．细节理解题。根据“Memories of experiences (e. g, our first day at school) and of factual knowledge (e. g. , the capital of France) are called declarative memories. These memories can be communicated to others.”可知，陈述性记忆可以传递给别人。故选C。
41．推理判断题。通读全文可知，本文主要介绍了人类的两种记忆模式，科学家们对不同的记忆类型做了很多实验。它属于科学范畴，因此推断，我们最有可能在科学杂志上看到这篇文章。故选A。
42．D 43．B 44．A 45．D
【导语】本文主要介绍了四类网上物品的价格、颜色及配送时间等。
42．细节理解题。根据“Welcome to Made-in-China website!”可知，这些物品是在网上售卖的。故选D。
43．细节理解题。根据“Tea pots with good quality. And the best gift for your friends or your family.”可知，茶壶是赠给朋友和家人的最好礼物。故选B。
44．细节理解题。根据“Delivery time: 3 days after confirmation.”可知，纽扣的配送时间是三天。故选A。
45．推理判断题。根据“Teapot ... Price:￥120”及“Handbag...Price:￥280 (￥520 for two on Women’s Day)”可知，400元可以购买一个茶壶和一个手提包。故选D。
46．B 47．A 48．A 49．D 50．B
【导语】本文是一篇应用文，主要介绍了一些服装品牌。
46．细节理解题。根据“Abercrombie & Fitch...Jeans are a favorite among customers.”可知，汤姆计划和他的朋友去钓鱼，他需要一条牛仔裤，他可以去Abercrombie & Fitch。故选B。
47．细节理解题。根据“American Apparel...Their clothes are typically bright and the sizes are from XS to XL. Prices for most items are from $15 to $80.”可知，简是一个十几岁的女孩，她喜欢鲜艳的颜色的衣服，现在她有15美元买一条裙子，她可以去American Apparel。故选A。
48．细节理解题。根据“Old Navy has clothing in both common and plus sizes.”以及“H & M...They also offer plus sizes, up to a size 24, in addition to common sizes.”可知，两者都有加大码和普通码。故选A。
49．细节理解题。根据“H & M...What makes it different is that it regularly works with famous designers.”可知，它的不同之处在于它经常与著名设计师合作。故选D。
50．推理判断题。本文介绍了几个服装品牌，它们的服装特点，尺码和价格等信息。可知，那些想为下一季买衣服的人觉得这篇文章有用。故选B。
51．B 52．A 53．B 54．C 55．A 56．D
【导语】本文是一篇说明文。文章主要介绍了克隆技术，它的发展过程和它对人类的好处和危害。
51．细节理解题。根据“You must have heard of the famous sheep, Dolly. It was the first successful man-made cloning animal in 1984.”可知，1984年人们成功地克隆出了第一个人造克隆动物。故选B。
52．细节理解题。根据“But long before that, in 1958, F.C. Steward grew whole carrot plants from carrot root cells, which encouraged the idea that cloning from animals’ cells may be possible.”可知，F.C.Steward用胡萝卜根细胞培育出了整株胡萝卜，这使他产生了从动物细胞克隆的想法。故选A。
53．推理判断题。根据“The cloning company hopes that the process will become more common and acceptable.”可知，这家克隆公司希望这一过程变得更加普遍和可接受，可推测克隆公司希望越来越多的人将会接受克隆。故选B。
54．细节理解题。根据“For pet owner, cloning their dead pets...It’s the memory of that original animal and I think that’s what our clients are hoping to get.”可知，我认为我们的客户希望通过克隆他们的宠物得到那只原始动物的记忆。故选C。
55．细节理解题。根据“However, not all people support the idea of cloning. They believe that if cloning is used for bad purpose, it surely will create great problems that we cannot imagine and lead to the destruction of humankind.”可知，并非所有人都支持克隆的想法，他们认为，如果克隆被用于不良目的，它肯定会造成我们无法想象的巨大问题并导致人类毁灭。故选A。
56．判断推理题。根据本文通篇介绍了克隆技术的相关内容，可推测本文是一篇科普文章，应出现在报纸的科学版块。故选D。
57．B 58．C 59．A
【导语】本文介绍了一些优惠券的情况，包括服装，电影票以及图书。
57．细节理解题。根据“Buy one T-shirt, and get another T-shirt of the same value for free.”可知，买一件T恤，可以免费得到一件同等价值的T恤，故选B。
58．细节理解题。根据“Buy any full-price movie ticket on Tuesdays or Wednesdays, and you can buy a second ticket for only half price.”可知，在周二或周三购买全价电影票，你可以用半价买第二张电影票，故选C。
59．细节理解题。根据“Show this coupon at the Book Store to get a 10% discount(折扣) on any book you buy.”可知，在书店出示此优惠券，购买任何书籍均可享受10%折扣，故选A。
60．C 61．B 62．B 63．A 64．A
【导语】本文主要讲述了动物们的迁徙的一些常识。他们迁徙或为舒适的温度，或为食物和水源。文章重点介绍了迁徙过程中动物们面临的三种挑战：距离、足够的食物和水源、安全。
60．细节理解题。根据“At first, these animals seem completely different.”及“They all migrate.”可知，第一段主要介绍的是不同种类的动物有一个共同的特点“迁徙”，故选C。
61．词义猜测题。根据“Some migrating groups move to a place with a better temperature. Some go to find food or water.”可知，一些迁徙群体会迁移到温度较高的地方。有些去寻找食物或水，可以推测migrate是“迁徙”的意思。故选B。
62．细节理解题。根据“One challenge is distance.”、“Another challenge is finding enough food and water during the journey.”及“In addition, migrating animals have to avoid other animals that want to eat them.”可知，介绍了迁徙动物旅途中遇到的三大挑战。故选B。
63．细节理解题。根据“For example, one great white shark swam from Australia to South Africa and back. In nine months, it swam about 20,000 kilometers.”可知，条大白鲨从澳大利亚游到南非，然后又游回来。在九个月的时间里，它游了大约2万公里，从澳大利亚到南非大约一万公里。A选项描述错误，故选A。
64．推理判断题。根据“In addition, migrating animals have to avoid other animals that want to eat them. For example, the zebra has to stay away from lions.”可知，斑马要远离狮子，因为狮子会吃斑马。故选A。
65．B 66．C 67．C 68．D 69．B
【导语】本文介绍了喝水的重要性。
65．细节理解题。根据“Some people do a study on the health of children in the United States every year.”可知本文是一个关于学生健康的研究。故选B。
66．细节理解题。根据“The group of 4,000 children is between 6 and 19. After looking at the study results, we can know that over half of the children need water.”可知超过一半的学生需要喝水。故选C。
67．推理判断题。根据“Our body is made up of 60% water.”可知人体的60%是水，因此一个40千克的人，水占24千克。故选C。
68．细节理解题。根据“It tells us that it is important to drink a lot of water when you exercise or do sports.”可知运动和锻炼之后需要喝很多水。故选D。
69．细节理解题。根据“The American National Agriculture Library says children need between 10 to 14 cups of water every day. This water can come from drinks and foods.”可知人们可以从饮品和食物中获得足够水分。故选B。
70．B 71．C 72．A 73．C
【导语】本文是一篇说明文，向我们介绍太空蔬菜的相关内容，告诉我们太空蔬菜是非常安全的。
70．细节理解题。根据“When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables.”可知，当它们被带回地球时，这些种子会产出比普通蔬菜更大、更健康的蔬菜。故选B。
71．细节理解题。根据“For example, space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes.”可知，太空番茄可以保鲜20天，比普通番茄多一周，所以普通番茄可以保鲜13天，故选C。
72．细节理解题。根据“Unlike genetically modified food, space vegetables have not been genetically changed. This means that no new genes are put into the vegetables.”可知，与转基因食品不同，太空蔬菜并没有经过基因改造，这意味着没有新的基因被放入蔬菜中。故选A。
73．主旨大意题。本文向我们介绍太空蔬菜的相关内容，告诉我们太空蔬菜是非常安全的。故选C。
74．A 75．C 76．B 77．C
【导语】本文主要介绍了用太阳能做饭的几种太阳能炊具的情况。
74．细节理解题。根据“A Swiss scientist made the first solar cooker in 1777.”可知，一位瑞士科学家制造了第一个太阳能炊具。故选A。
75．细节理解题。根据“The third kind of solar cooker is a parabolic(抛物线的) cooker. It has rounded walls that collect sunlight into the bottom of the cooker.”可知，抛物面式炊具有圆形的内壁来聚集阳光。故选C。
76．细节理解题。根据“People can build panel cookers quickly. They do not cost much.”可知，在太阳能加热锅中，面板式炊具的成本最低。故选B。
77．篇章结构题。通读全文可知，第一段总体讲述人们利用热量的历史；第二段、第三段、第四段、第五段和第六段介绍了三种太阳能炊具的特点以及总结，故选C。
78．D 79．B 80．A 81．B 82．B
【导语】本文是一篇说明文。叙述了随着科学的发展，人类对太空了解得越来越多，太空不仅吸引人而且也很危险。辐射和太空垃圾是最大的危险。尽管太空确实存在危险，但是在不久的将来，人到太空住几天或在太空生活几年都是可能的。因此我们要保护太空和提高太空环境质量。
78．细节理解题。根据第二段“Scientists have found out that radiation (辐射) is the greatest danger to spacemen in space.”可知，太阳和其他星球的射线是有害的。故选D。
79．词义猜测题。根据“each at least 4mm in size, and even a small piece of these knocked against a spaceship window and did some damage.”可知，是爆炸产生的碎片会击中宇宙飞船的窗户或是造成其他伤害，故选B。
80．词义猜测题。根据“Space junk is also thought to be a great danger to spacemen. It’s reported that there are 9,000 man-made things flying in space.”可知，these指代的是上句中出现的“man-made things”，说明漂浮在太空中的人造物品有百分之三十是人造卫星。故选A。
81．主旨大意题。根据“In the near future, it may become usual for people to spend a few days in a space hotel.”可知，最后一段讲述的是未来的太空，故选B。
82．主旨大意题。通读全文可知，本文主要讲述了太空中的两种危险射线和太空垃圾，故选B。
83．A 84．D 85．B
【导语】本文主要介绍了四本书的信息。
83．细节理解题。根据左上角表格中的“Reading level: Age:9-12”可知阅读水平：年龄：9-12岁，因此只有《哈利波特与死亡圣器》这一本书适合孩子。故选A。
84．细节理解题。根据左下角“Date: 01/01/2010”可知日期： 01/01/2010，因此《穷爸爸，富爸爸》这本书是2009年之后印刷。故选D。
85．细节理解题。从表格可知，除了第一本书适合孩子，其余书本都适合成年人阅读，第三本书和第四本书的价格最低，因此两本共需要12.09美元。故选B。
86．B 87．C 88．C 89．D
【导语】本文是一篇说明文。文章主要介绍了5G网络下的智能家居，并介绍了智能家居给我们生活带来的便利，给我们的环境带来的节能好处。
86．细节理解题。根据“With X10, household devices (家用设备) like lights and alarms (警报器) can communicate with each other by using radio waves.”可知，借助 X10, 诸如照明和警报器之类的家用设备可以通过无线电波相互交流。故选B。
87．细节理解题。根据“Smart homes are also good for the environment. By turning off devices that you’re not using, smart homes can lower the electricity you use. Using less energy means that we use fewer natural resources, which is good for the environment.”可知，通过关闭你不用的设备, 智能家居可以降低你的用电量。使用更少的能源意味着我们使用更少的自然资源, 这对环境有益。所以智能家居通过帮助我们节约能源来更好地保护环境。故选C。
88．细节理解题。根据“But it’s not just about convenience. Smart homes are also good for the environment.”可知，智能家居不仅仅是方便了。它对环境也有好处。故选C。
89．推理判断题。通读全文可知，文章首先谈到X10技术通过无线电波让家用装置彼此交流, 再说到5G技术对智能家居发展起了重要作用，文中具体谈到了voice-activated assistant、 a smart dustbin、smart fridges及智能节能等。由此可知, 本文谈论的是智能技术的话题，与科技相关，所以最可能出现在报纸的科学部分。故选D
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