We have recently heard some interesting ways that 5G technology might change our lives in the future. 5G promises internet speeds between 50 to 100 times faster than 4G systems. Such improvements are sure to be popular with 5G users worldwide. While it is said to start only in some few areas of the United States this year, much of the rest of the world is not expected to receive this service until 2023.
One project in Britain, though, is already testing the superfast technology, but not on humans.
Instead, the experimental subjects (实验对象) are unlike the group of internet users — cows. The system connects the animals to 5G in an effort to automate (使自动化) the milking process.
The project was developed by American technology company Cisco Systems. Testing areas were set up at farms in three rural areas of England. The cows are equipped with 5G-connected devices (设备) that link up to a robotic milking system. The system uses sensors (传感器) and machine learning to fully automate the process.
System designers say technology takes over after a cow is ready to be milked and walks towards an automatic gate. The device is designed to recognize each cow. It then positions devices to the right body position for milking. During the process, machines offer food for the cow as a reward.
One of the test areas is in the town of Shepton Mallet in southwest England. There, about 50 of the farm’s l80 cows are fitted with 5G smart collars (智能项圈) in ear sensors. Project officials say the devices do not harm the cows and the sensors help farmers immediately find any problems or health concerns.
Duncan Forbes, the project leader, told Reuters that so far, he thinks the project shows the farm’s180 cow operations can be greatly improved with 5G technology.
Forbes added that the experiment provides strong evidence that 5G technology can be widely used in the future “not just on farms, but in rural communities right across the country.”
1. What do we know about 5G technology from the first two paragraphs?| A．It has changed our lives. |
| B．It has more users than 4G. |
| C．It has not been widely used. |
| D．It is used on cows in the USA. |
| A．The introduction of 5G devices. |
| B．The milking process with 5G technology. |
| C．the purpose of system designers. |
| D．The way machines provide cows with food. |
| A．To recognize every cow. |
| B．To judge the position of the cow. |
| C．To reduce the harm from devices. |
| D．To find health problems in cows. |
| A．Doubtful. | B．Hopeful. | C．Disapproving. | D．Uncaring. |
相似题推荐
【推荐1】The recent development in technology has led to better learning opportunities for students. Learning is an ongoing process, and students can have fun and learn many things on the go with these apps.
Exam Vocabulary Builder
Learning new English words is not difficult anymore when you have Exam Vocabulary Builder on your smartphone. Apart from learning new words with meaning, you can also find an example of using the word in a sentence. Moreover, you can test yourself in quiz mode comprised of challenging levels.
Quizlet
Quizlet is a simple app that allows you to learn anything, create your own study sets, and improve your class grades by studying with flashcards. It’ll give you a whole new experience on how you learn things in a fun way. Next time you have a problem with learning a new chapter or topic, try Quizlet and see how things work out.
Exam Countdown
If you’re feeling distracted (分心的) when the exams draw near, you might need Exam Countdown app. There might be a possibility that you forgot to submit your last assignment before the finals. The app acts like a scheduler where you can keep track of your assignments, exams, quizzes, and presentations.
MyScript Smart Note
Aren’t you quick enough to write notes in the classroom on your tablet’s QWERTY keyboard? No problem, because MyScript Smart Note is the perfect solution for you to easily take notes on your tablet. It allows you to edit your handwriting with special gestures. Moreover, you can also add pictures to the text, math equations, PDF files, or sound. It also comes with downloadable language packs.
1. What do Exam Vocabulary Builder and MyScript Smart Note have in common?| A．They both can be used for note taking. |
| B．They both can be used with hand gestures. |
| C．They both can be used to test language skills. |
| D．They both can he used for language learning. |
| A．Quizlet. | B．Exam Countdown. |
| C．MyScript Smart Note. | D．Exam Vocabulary Builder. |
| A．Introduce some wonderful learning methods for students. |
| B．Provide some good learning opportunities for students. |
| C．Introduce some useful learning apps for students. |
| D．Promote some practical teaching apps for teachers. |
【推荐2】The Art of Slow Reading
If you are reading this article in print, chances are that you will only get through half of what I have written. And if you are reading this online, you may not even finish a fifth.
So are we getting stupider? Actually, our online habits are damaging the mental power we need to process and understand textual information. Round-the-clock news makes us read from one article to the next without necessarily engaging fully with any of the content. Our reading is frequently interrupted by the noise of the latest email and we are now absorbing short bursts of words on Twitter and Facebook more regularly than longer texts.
| A．The Internet is probably part of the problem. |
| B．Now some campaigns are advocating slow reading. |
| C．These are the two findings from the recent research projects. |
| D．But if you just occasionally want to read more slowly, help is at hand. |
| E．Some of them have suggested turning their computers off for one day a week. |
| F．Slow reading can help connect a reader to neighborhood and become popular. |
| G．Because of the Internet, we have become very good at collecting information. |
【推荐3】MySpace, the social networking website, is different from other websites which only provide stories about other people. MySpace is a place that allows you to broadcast your own stories and personal information to as many people as you like. Founded in 2003, it is a big source of information for and about American kids.
Teenagers and their parents feel very differently about it. Teens are rushing to join the site, not sharing their parents’ worries. It signals yet another generation gap in the digital era.
For teenagers, it is reliable network to keep in touch with their friends. They will often list their surnames, birthdays, after-school jobs, school clubs, hobbies and other personal information. “MySpace is an easy way to reach just about everyone. I don’t have all the phone numbers of my acquaintances. But if I want to get in touch with one of them, I could just leave them a message on MySpace,” said Abby Van Wassen. She is a 16-year-old student at Woodland Hills High of Pittsburgh, Pennsylvania.
Parents, on the other hand, are seriously concerned about the security problems of MySpace. “Every time we hold a parents meeting, the first question is always about MySpace,” said Kent Gates, who travels the country doing Internet safety seminars (研讨会). The National Centre for Missing and Exploited Children has received at least 288 MySpace-related complaints, according to Mary Beth Buchanan, a lawyer in Pittsburgh.
“Your profile on MySpace shows all your personal information to anyone on the Web. And MySpace even lists this information by birthplace and age. It’s like a free checklist for troublemakers and it endangers children,” Buchanan said.
1. From the passage, we can learn that MySpace _________.| A．is popular with parents |
| B．is very careful about people’s privacy |
| C．encourages you to list your personal information |
| D．lists the telephone numbers of your friends |
| A．MySpace has become a top issue troubling parents. |
| B．MySpace often holds parents meetings. |
| C．MySpace is quite popular with parents. |
| D．Parents have lots of questions about the website. |
| A．negative | B．positive |
| C．optimistic | D．objective |
| A．Internet Safety | B．The Digital Era |
| C．Generation Gap | D．MySpace |
【推荐1】Anxieties (忧虑) about children and reading are not unusual, but news that fewer than half of those aged between 8 and 18 admit to actually enjoying it — the lowest level since 2005 — should raise a red flag. The survey, conducted by the National Literacy Trust ahead of World Book Day last Thursday, also showed a worrying picture of growing inequality.
10% of 3,000 parents interviewed across the UK said they were too stressed to read to their child because of economic pressures. And the percentage doubled among those who described themselves as struggling with financial problems. However, the sales data for the last year, released by an organization called Nielsen BookScan, showed a 15% increase in the overall number of children’s books sold compared with 2019. If poorer families are spending less of the money invested in children’s reading, it follows that richer families must be investing more.
Therefore, what is to be done? At a time of financial stress, libraries have a key role to play. A positive sign that they are doing so came with borrowing figures for last year. Libraries are where children of all ages go to choose books for themselves, different from bookshops, which is always influenced by parents’ budgets and tastes.
This is why the libraries are such an important part of the reading ecology. However, libraries have long been in the frontline (前线) of cuts to public services, especially libraries in schools. While prisons in the UK have libraries, primary schools are not. The result, according to one survey, is that 14% of kids have no library space at all. This disadvantage is more serious in the north of England, where children’s reading scores are lower.
As Children’s Prize winner in 2021, the author Cressida Cowell wrote an open letter to the prime minister, Boris Johnson, calling for an annual investment of £100 million a year in primary school libraries. Her demand should be taken seriously, as it directly meets the needs of children most badly affected by the cost of living crisis.
1. Which statement does the author probably agree with?| A．Families with financial problems are on the increase. |
| B．Family income influences children’s chance of reading. |
| C．Children are not willing to read because of study pressure. |
| D．Some UK parents can’t afford the time to read books for children. |
| A．They tend to reflect parents’ tastes. |
| B．They exist in every prison and school. |
| C．They have already got enough financial support. |
| D．They promote equality in children’s reading to some extent. |
| A．It satisfies all citizens. | B．It will be taken into account. |
| C．It offers reasonable advice. | D．It will solve the problem of inequality. |
| A．Reading: a Mirror of Economy. | B．Children’s Reading: a Gift for All. |
| C．Libraries: the Key to Reading Ability. | D．An Interview: Poor Families Are in Need. |
【推荐2】Called “America’s wolf”, the red wolf is the only large predator whose historic range is found entirely within the United States, stretching from Texas to New England. But hunting gradually reduced its range, and it was declared extinct in the wild in 1980.
Recovery efforts in the wild began in 1987 on the Alligator River National Wildlife Refuge. In a ground-breaking successful experiment, eight captive (圈养的) wolves were released this year into North Carolina, eventually growing into a population over 100, reaching a peak of around 120 wolves in 2012. But illegal hunting and management changes by the Fish and Wildlife Service resulted in their numbers plummeting.
In the spring, conservationists celebrated a small bit of good news when four captive-born pups (幼兽) were placed into a cave and successfully adopted by a wild red wolf mother. Meanwhile, another four adults were released into the wild. The pups are thought to be still alive and healthy. But the adults didn’t go well. In the months after release, three were struck by cars and killed, and the fourth was fatally shot on private land.
To boost the population after these deaths, the U. S. Fish and Wildlife Service announced in November that it planned to release nine adult red wolves into their recovery area this winter, land within and surrounding two wildlife reserves.
The Service also recently announced it would withdraw a 2018 proposal to shrink (缩小) the red wolves’ protected area in North Carolina by 90 percent, after a lawsuit accused the agency of going against the Endangered Species Act. Ron Sutherland of the Wildlands Network says it’s crucial that the agency has abandoned this wrong-headed proposal. And yet the situation now is even more urgent than it was in 2018 — this should launch the conservation community in the U. S. into crisis mode to save this species and bring it back from the extinction.
1. What does the underlined word “plummeting” in paragraph 2 mean?| A．Promising. | B．Declining. | C．Multiplying. | D．Increasing. |
| A．The released wolves lived well. |
| B．The population boosted after the release. |
| C．The red wolf faced greater threat than before. |
| D．The released red wolves still needed protection. |
| A．Shrink the red wolves’ reserves. |
| B．Make a proposal to protect the red wolves. |
| C．Put some red wolves in some specific places. |
| D．Force the protected area into the state of emergency. |
| A．The protection of red wolves. | B．Challenges faced by red wolves. |
| C．Reasons for red wolves extinction. | D．The relationship between red wolves and humans. |
【推荐3】Digital technology（数字技术）has made life easier for most people. With a smartphone in hand, people can shop online, watch TV shows and arrange a taxi.
Zhu Yiwei, 17, from Anhui province, wanted his grandfather to have access to this convenience, so he bought him a new phone as a gift. But his grandfather still uses the phone just for calling and messaging. “He said other functions make him confused, ”said Zhu.
This is a common problem faced by the elderly in the digital age.
Although China already has more than 900 million internet users, among them, those aged 60 and above make up just 6.7 percent, according to the Statistical Report on Internet Development.
Even though the elderly have access to the internet, they mainly do it for communication and information acquisition（获取），according to a survey by the Chinese Academy of Social Sciences. Other services are still strange to them. That’s why elderly people are sometimes called “digital refugees（难民）”.
For example, since the COVID-19 pandemic, people are often asked to show a green health code on their phone to get into public places. But most elderly people don't use smartphones. Even if they have one, many don't know how to operate it, People's Daily noted.
“We have made a lifelong contribution to society, but now we feel abandoned by it,”a 75-year-old Beijing resident surnamed Bai told the Global Times.
For the elderly, one way of mastering digital technology is to learn from younger family members. However, not all of these younger people have the patience or time to teach the elderly. In addition, aging results in many physical problems, such as weak eyesight and bad memory. This makes it harder to use smartphones.
The government and other organizations in China are trying to help. See Young, a Beijing-based NGO, aims to help China's elderly use mobile services. Student volunteers have been providing free computer and smartphone training for elderly people in over 200 communities across the country.
Zhao Jingchuan, 17, from Xi'an Gaoxin No 1 High School, and his team members also tried to help. This year, their draft proposal（草拟提案）was brought to the two sessions. They suggested more ways to help introduce the technology to the older generation, including sending manuals(手册），offering technical support, and cybersecurity(网络安全）education.
1. Why is Zhu Yiwei's example mentioned in the second paragraph?| A．To praise him for caring for the elderly. |
| B．To show how the elderly use phones. |
| C．To tell about how the young and the elderly get along. |
| D．To present the topic of the difficulties elderly people face in the digital age. |
| A．they hardly have opportunities to use the internet |
| B．they have trouble using digital technology |
| C．they are unwilling to use new technology |
| D．they don't have suitable digital products |
| A．Attacked. |
| B．Defeated. |
| C．Left behind. |
| D．Held back. |
| A．The expectations of the elderly in the digital age. |
| B．The advantages of digital technology for the elderly. |
| C．The efforts made to help the elderly use technology. |
| D．The help young people provided for the elderly. |
【推荐1】The Confucius Institute Introductory Chinese Course
Course Overview
The Confucius Institute at UNC Charlotte is proud to offer a non-credit (无学分的) community-based Chinese language and culture course to those who are interested in learning about China and Chinese society. The course is taught by experienced teachers or native speakers of Chinese. Instructional materials and topics have been reviewed by the Confucius Institute’s Faculty Advisory Council, composed of UNC Charlotte staff.
Curriculum
Designed for those with no prior knowledge of Chinese language, the curriculum includes 30-minute weekly individual training sessions.
This course starts with pinyin (the Chinese pronunciation system) and offers an integrated (综合的) introduction to reading, listening and speaking in Chinese. Students will practice accurate pronunciation and tones, complete with real communicative tasks. By the end of the session, students will be able to respond to greetings, exchange basic personal information, talk about one’s family, describe one’s appearance, and conduct simple conversations about some daily life topics.
Students will gain oral communicative ability. They are not required to show written presentation skills, though they are highly encouraged to demonstrate their oral presentation skills in the topics covered in the course. There is no written homework, however, the instructor may request additional time outside of class to review the class content or provide some oral assignments.
Schedule and Location:
| Date | Time | Location |
| Every Tuesday from Jul 9, 2019 to Aug 27, 2019 | 6:00pm - 8:30pm | UNC Charlotte Main Campus College of Health and Human Services, Room 120 |
Format:
√ 8-Week Face-to-Face Program
√ One day per week face-to-face 6:00pm to 8:30pm
Course Fees: $300
Financial Options:
√ Staff Discount
√ Early Bird Discount
1. Who is the course intended for?| A．Native speakers of Chinese. |
| B．Experienced Chinese teachers. |
| C．Staff of the Confucius Institute. |
| D．Lovers of China and Chinese society. |
| A．The history of Chinese society. |
| B．Ways to read Chinese literature. |
| C．Basic communication skills in Chinese. |
| D．Ways to improve Chinese writing skills. |
| A．You can get a discount if you sign up early. |
| B．Some credits can be gained through the course. |
| C．The students will have half-an-hour daily guidance. |
| D．The students need to hand in written tasks after each class. |
【推荐2】Joseph Banks was born on 13 February 1743 in London．His passion for botany began at school．From 1760 to 1763 he studied at Oxford University, during which time he received a great deal of fortune．In 1766 Banks traveled to Newfoundland and Labrador, collecting plant and other specimens（标本）．The same year he was elected a fellow of the Royal Society．
In 1768 he joined the Society's expedition, led by Captain James Cook, to explore the uncharted lands of the South Pacific．The expedition circumnavigated（环航） the globe and visited South America, Tahiti, New Zealand, Australia and Java．Banks collected a great number of specimens on the way and, on his return, his scientific account of the voyage and its discoveries sparked considerable interest across Europe．
Banks was interested in plants that could be used for practical purposes and be introduced into other countries for possible commercial use．After he became president of the Royal Society in 1778, he promoted the career of many scientists and in his capacity as director of the Royal Botanic Gardens at Kew, sent many botanists abroad to find new plants and extend the Gardens' collection．
In 1781 Banks was made a baronet （准男爵）, and in 1795 received the order of Knight Commander of the Bath; two years later he was admitted to the Privy Council（枢密院）．In 1793 his name was given to the Banks Islands, a volcanic group of islands near Vanuatu in the Pacific．These were explored and named by Captain Bligh-Banks had helped arrange a previous expedition of Bligh's．Banks died on 19 June 1820．
1. Please choose the correct order about what happened to Jose Banks．a．He received the order of Knight Commander of the Bath．
b．He sent many botanists abroad to find new plants．
c．He joined the Society's expedition．
d．He elected a fellow of the Royal Society．
| A．c, d, a, b | B．d, c, b, a | C．d, b, c, a | D．c, d, b, a |
| A．showed | B．amused | C．caused | D．declared |
| A．Adventurous． | B．Humorous． | C．Demanding． | D．Skeptical． |
| A．Because he visited the islands． |
| B．Because he was admitted to the Privy Council． |
| C．Because he had close relationship with Captain Bligh． |
| D．Because he had helped arrange a previous expedition of Bligh's． |
【推荐3】My sister and I spent our childhoods in a small town. Mom worked hard at her job from morning till evening — but not before sending us off to school early with our not-so-heavy bags and our lunch boxes with simple, wholesome meals. Even though we went through tough times, providing my sister and I with the best possible education remained a big priority for our mother. Education before everything else was her belief, even though it meant most of her hard-earned money was spent paying our school fees. We were always careful and economical, but somehow we never felt a sense of deprivation (贫困) in our lives.
Life for us moved at this easy, contented pace until, of course, our birthdays approached. Honestly, I did not look forward to the gifts as much as I did sharing Moms handmade chocolates, wrapped (被包裹) in shiny, colorful paper, with my classmates. Fifteen minutes before lunch, our teacher would allow us to distribute the candy. And out came the box from its hiding place under my books-and with a smile on my face and a happy heart, I would hand over two chocolates each to my friends. Then, I would rush out of the room just to enjoy the pleasure of hearing them open up the wrappers and the mouth-watering chocolates in pure delight. They would then ask me if there were a few more until I ran out of these treats entirely. Year after year, I followed the same ritual (仪式) — and it pleased me to no end each time I heard my friends say that these chocolates were unlike any they had ever tasted.
The years passed by, and as our kids grew up, they too gifted chocolates to their friends at school on their birthdays. However, none of the chocolates I offered to my child could match what Mom always had for us. Until the year Mom visited us on my child’s birthday and brought along her famous chocolates. After so many years, I finally realized the secret of the chocolate’s evergreen taste: sugar and peanuts cooked to perfection and filled with motherly affection and love in wrappers saved over months. Indeed, the best birthday treat I had ever tasted!
1. What do we know about the author’s mother?| A．She stressed the importance of education. |
| B．She was too busy to care for the family. |
| C．She cooked big lunches for her children. |
| D．She was a teacher in the author’s school. |
| A．Put out. | B．Pick up | C．Hand out. | D．Show up |
| A．They were healthy. | B．They were popular. |
| C．They were too sweet. | D．They were too expensive. |
| A．The colorful school life I have experienced |
| B．The various birthday gifts I have received |
| C．The best wrappers I have ever collected |
| D．The best chocolate I have ever tasted |
【推荐1】The Top one has to be climate change. Greenhouse gases can stay in the environment for hundreds, even thousands of years and governments have been too slow to react-- you can't reverse the effects from one day to the next. Worst case scenario(情形)？ As northern countries warm up, insects will migrate there bringing a chain of deadly illness such as malaria (疟疾) and plagues. The probability of more frequent and stronger hurricanes will increase, with devastating consequences—not least of which will be the huge damage- repair costs, to say nothing of the loss of lives. It’s high time we took preventative action—before it’s too late!
Nick, London
People go on about climate change but for me, the worst offender is child labour. It’s unthinkable that it still persists in this day and age! Working in a sweatshop to produce a trendy pair of trainers for some westerns, or cheap clothing, is no kind of life for a young person. The statistics speak for themselves: seventy-three million ten-to fourteen year-olds form part of the workforce worldwide—in countries such as Mali that’s fifty-four percent of children in that age group, in India it’s forty-one percent of the same age group. We need more pressure groups to campaign against importing goods made by underage workers and to support organizations such as Fairtrade that promote ethical trade and fair wages for adults.
Maria, Rome
World population has already passed the seven billion mark and it’s growing increasingly fast. Currently over 925 million people—that’s almost one in seven—have an insufficiently daily diet(less than 2100 calories a day) and this figure is going up by ten million a year! The worst-hit countries are poverty-stricken ones such as those in west Africa, Haiti and Mongolia, but conflict in places such as Sudan or Iraq has also caused widespread starvation. If this is happening when the world actually produces enough food to feed everyone (as it does presently) what will happen in the near future? We need a long-term solution—and fast.
Kelvin, Sydney
1. What is the purpose of the passage?| A．To raise people’s awareness of climate change. |
| B．To call for preventive action to be taken immediately. |
| C．To share personal ideas on what global problem to address. |
| D．To urge the public to come up with possible solutions to global concerns. |
| A．association that advocates the rights for labourers. |
| B．organization that promotes equal pay for child labourers |
| C．pressure group to campaign against importing cheap goods |
| D．Sweatshop to produce trendy pairs of trainers for westerners |
| A．More conflicts will occur due to starvation |
| B．There is an increasing need for high calories food. |
| C．The growth of population will exceed food output. |
| D．The number of poverty-stricken countries is on the rise. |
【推荐2】I have recently moved to Hamburg in Germany and have always heard that Germans just wear jeans or some strange clothes. Since I have moved here though, I have found this to actually be completely false and I think I would prefer it if they did just wear jeans, so I could do the same!
Hamburg is a very big shopping city. Apart from H&M, New Yorker and Mango, I have found a New Look and a new Topshop have recently just opened. These shops are quite popular shops in the UK and sell clothes which are always considered as very "fashionable".
Another thing I am really struggling with, as well as trying to be fashionable, I am trying to find the right clothes for the weather. I have found in Hamburg one minute it is nice and sunny but the next minute it is throwing it down with rain! One day it might start off really rainy and cold but by lunch time it is sunny and really hot, so wearing a coat is not practical.
In general, however, I think it has also got cold here very quickly and it already feels like the winter that I am used to. I frequently go out in my winter coat, hat, gloves and scarf while many other people are still only wearing jeans or leather jackets. I don't understand how they do it as I am always freezing. Is it better to blend(使混合)in with fashion or be warm? I think I would rather be warm and maybe look like a bit of a banana in a huge coat rather than be shivering all day.
What do you think? Clearly I am missing something here as I seem to be the only one struggling over these fashion decisions.
1. When the writer was in Hamburg, she found Germans .| A．care more about what to wear | B．don't always wear jeans |
| C．like wearing fashionable clothes | D．like wearing jeans |
| A．difficult | B．funny |
| C．exciting | D．convenient |
| A．changeable | B．comfortable |
| C．rainy | D．lovely |
| A．wandering | B．searching |
| C．shaking | D．watching |
【推荐3】While the human world is suffering from the novel coronavirus outbreak, our planet is actually showing certain signs of "recovery" from the damage caused by human activity. According to BBC, new satellite images released by the European Space Agency showed that the levels of air pollutants and greenhouse gases have "fallen sharply" in major cities in Europe and the United Stated ever since the lockdown started.
This is a great example of how the world can change overnight as soon as people change their behavior—especially after recent discoveries in Antarctica. An international team of 89 scientists found that the ice in Greenland and Antarctica was melting six times faster in the 2010s than it was in the 1990s. And in February Argentina's Marambio research station in Antarctica recorded a record high temperature of 20.75℃ in the continent.
So what exactly will happen if the temperature keeps rising and the ice keeps melting? A third study might give you an idea. A team of scientists drilled a hole into the seafloor in west Antarctica and obtained material from underground, in which they found traces of roots, spores and pollen— typical products of a rainforest — that dated back to 90 million years ago. In other words, Antarctica was very likely a rainforest back when the dinosaurs walked on Earth. But given the fact that the South Pole has four months of darkness during winter — even millions of years ago—scientists believe that the rainforest could only exit if the greenhouse gas concentration were extremely high back then to keep the continent warm when there was little or no sunlight. "We didn't know that this Cretaceous greenhouse climate was that extreme," Johann Klages of the Alfred Wegener Institute in Germany and a co﹣author of the research told the Guardian. "It shows us what carbon dioxide is able to do. "
Ice or no ice, Antarctica will be—and has always been fine with extreme changes. The human world, however, may not be. Now, during the coronavirus lockdown, we've seen the changes resulting from less human activity. Hopefully, we'll hold on to those changes—not for Antarctica or the planet, but for ourselves.
1. What does the author mainly want to tell us in Paragraph 1？| A．The novel coronavirus has spread all over the world. |
| B．The environment of our planet has improved greatly. |
| C．Europe and US should be responsible for the air pollution. |
| D．Reducing human activity does good to the environment. |
| A．The traces of typical products of a rainforest. |
| B．The existence of high greenhouse gas concentrations. |
| C．The recording of extreme Cretaceous greenhouse climate. |
| D．The evidence of dinosaurs living in rainforests. |
| A．Human activities don't cause much threat to Antarctica. |
| B．Little can be done to stop extreme change in Antarctica. |
| C．The lockdown can be used to slow down global warming. |
| D．We should reduce carbon dioxide emissions for our own sake. |
| A．Antarctica Is Melting at a Fast Speed |
| B．It Is Our duty to protect the Planet |
| C．Less Human Activity Makes Nature Recover |
| D．Lockdown Reduces Air Pollution and Greenhouse Gas |
