【推荐2】Called the 4th industrial revolution, 5G will likely bring huge changes to our daily lives. Most importantly, it seems set to revolutionize healthcare.

One of the most exciting and publicized uses of 5G is telesurgery (远程手术). This is when a doctor remotely performs surgery on a patient. They may not be in the same room, nor even the same country! In January 2019, the world’s first remote surgery was performed in Fujian province. A doctor controlled robotic arms through a 5G network to remove the liver of a laboratory test animal. Two months later, China completed its first 5G-based human brain surgery between a doctor and a patient located more than 4,000 kilometers away.

Team leader Tian Wei told Xinhua News Agency, “The combination of 5G technology with surgical robots is a huge technological advance that will help us share our skills with more patients in distant regions.”

“People across society can now have access to top medical resources. In the future, using robots and 5G will be common. The medical community will be smarter,” he added.

These advances were only possible with 5G. The high speed of the network means there is no meaningful latency between a doctor’s movements in one place and a robot’s in the other. This allows doctors far more precision than on a 4G network. It’s the same as playing a computer game online. Slow connections mean trembling shaking and unpredictable movements.

5G will also bring everyday benefits to healthcare. Before treatment, 5G will support a high number of high-definition (高清晰度的) video calls with doctors and provide immediate advice to those who can’t visit hospital. After being treated, wearable devices will send data in real-time to doctors, allowing hospitals to monitor recovering patients from their homes.

5G technology aims to ensure everyone has access to good healthcare. But as 5G is rolled out, we may realize world where robot operations and home healthcare become common.

1. Which of the following best describes 5G technology from Tian Wei’s words?

A．5G will make good healthcare available to more patients.

B．It is hard to say whether 5G will be widely used in the future.

C．5G has great potential in various fields including community.

D．It remains doubtful about using robots and 5G for surgeries.

2. What does the underlined word “latency” in Paragraph 5 mean?

A．Rush.

B．Delay.

C．Speed.

D．Mistake.

3. Which is the benefit of telehealth according to the text?

A．Its precision allows patients to recover more quickly.

B．It provides doctors with more personalized treatments.

C．It is more convenient both for patients and doctors.

D．It will save a lot of energy to go to the hospital in advance.

4. What’s the passage mainly about?

A．How to use 5G technology to perform an operation.

B．The importance of using 5G technology.

C．The significance of using 5G in telehealth.

D．How different countries apply 5G in healthcare.

【推荐3】Even for a first-time visitor to China, it is impossible to ignore the popularity of Quick-Response (QR) codes. These square-shaped black-and-white symbols in WeChat or Alipay where QR codes are scanned to add new friends or make payments.

The QR Code system originated in Japan. The engineer Masahiro Hara felt the limitation of the one-dimension barcode in use and thus developed the QR codes which could carry data horizontally and vertically. QR codes could hold much more information than barcode due to their extra dimension. In addition, QR codes have larger data capacity, smaller print—out size and higher resistance to dirt and damage, which make them widely applied in many other applications.

Though the technology of QR codes is complicated, we can easily create our own QR codes with the help of QR code generators, many of which are available online for free. Users could enter the data they wish the QR code to display, and the generator turns it into a symbol that can be printed or displayed in electronic form. The process of creating QR codes could be really fun when we customise the design of the codes according to our specific needs. For instance, we can adjust the color, add a logo, and create social options etc. Moreover, dynamic (动态的) QR codes are also available. They are more various than standard QR codes because they allow users to edit data entered previously whereas data in standard QR codes cannot be edited once printed. Plus, don’t limit your QR code to one mobile scanner. Anyone can scan your code with any reader. A lower barrier to entry makes success more likely for you and the user.

Meanwhile, we must also recognize the vulnerability of QR codes. Due to its easy access, criminals can steal simply by replacing the QR codes with their own, routing cash into their own bank accounts. Hence, we should all become more conscious towards virtual money transactions through QR codes and participate in additional security measures.

1. Which of the following is NOT a function of QR codes?

A．Data storage.

B．Scanning reader.

C．Social networking.

D．Mobile payment.

2. Why is barcode mentioned in paragraph 2?

A．To introduce the main topic.

B．To show the author’s attitude.

C．To highlight the features of QR codes.

D．To add some background knowledge.

3. Which of the following best explains “vulnerability” underlined in paragraph 4?

A．Threat.	B．Weakness.
C．Difficulty.	D．Simplicity.

4. Which is true about QR codes according to the text?

A．They were first used in China.

B．The generators charge the users a lot.

C．Data editing is possible in printed QR codes.

D．More scanning devices are available in reading QR codes.

【推荐1】Not long ago, “blind box economy” suddenly became popular, winning the heart of large numbers of faithful fans. A couple spent 200 thousand yuan on them. Another sixty-year-old guy spent over 700 thousand yuan in buying blind boxes. Data showed that last year 300 thousand hobbyists made such deals.

The blind boxes usually contain the dolls related to comics and animation, or film and television, or specially designed ones. A single blind box usually costs about thirty to fifty yuan, and only after opening it can the buyer see what he has bought. This is rather like buying lottery (彩票) tickets, for the buyer has to bet on his luck.

However, addiction to blind box is much like that to gambling (赌博). Nobody knows whether sellers of blind boxes exaggerated (夸大) the winning rate so as to attract people to buy them, thus digging a consumption (消费) trap. Besides, it is also unknown whether the objects in the blind boxes are real or not.

The basis of the “blind box economy” is the cultural trend of collection in society. To follow suit, more and more people become fancy collecting animation toys in this way. Many of the target consumers are young people who have scanty experience of life. They are thus attracted by exaggerated probability of “winning a prize” and constantly throw money to buy blind boxes in order to gain dolls that they desire. Or they may buy at second - hand trade platform high - priced blind box dolls, thinking they can keep value preservation or appreciation, thus falling into the fixed pattern of trap carefully designed by businessmen.

Therefore, it is necessary to remind young people to control their consumption in case they become addicted.

1. Why are a couple and a sixty-year-old guy mentioned in paragraph 1?

A．To stress the importance of “blind box economy” to people.

B．To show the popularity of “blind box economy” among people.

C．To tell how much money people spend on blind boxes.

D．To prove older people can afford more to buy blind boxes.

2. What is “blind box economy” based on?

A．People’s love for gambling.

B．Sellers’ trap into consumption.

C．Society’s cultural trend of collection.

D．Consumers’ possibility to make a fortune.

3. What does the underlined word “scanty” in Paragraph 4 probably mean?

A．Previous.

B．Personal.

C．Insufficient.

D．Unforgettable.

4. What’s the author’s purpose of writing the text?

A．To inform readers of the “blind box economy”.

B．To promote the products of “blind box economy

C．To list the reasons behind the popularity of “blind box economy”.

D．To warn the consumers to think twice before buying blind boxes.

【推荐2】Instead of going on a trip or buying herself new clothes:Xiao Tong from Wuhan, Hubei province,chose to celebrate her senior high school graduation in a different way. She went to a beauty clinic to have plastic surgery on her nose."I want to make a good impression and start my university life with a brand-new look,"the 18-year-old told Changjiang Daily.

Like Xiao Tong,many young Chinese are anxious about their looks, and more and more subject themselves to plastic surgery.Young people do it for different reasons,and improving self-confidence is one of them.

Wang Fang,18,from Beijing, felt that her eyes were too small. In 2019,after she got in university,Wang had a minor operation done on her eyelids."Before I had the surgery, I had a negative view of myself.Therefore,I had no confidence,"Wang told Beijing Youth Daily.

But Jiang Wenxiu of the Department of Psychiatry, Zhongda Hospital, Southeast University in Jiangsu,advised that people should think twice before going under the knife. ＂Medical beauty apps only show how great plastic surgery can be,"Jiang told China Daily. ＂They leave out all the negative things."

Today beauty clinics are well aware that these young students are mostly short of money,so they use summer discounts, installment plans and other ways to attract their attention.

Xiao Zhen,17,from Chengdu,Sichuan province,is one of the victims. She took out a loan(贷款） of about 20,000 yuan to get plastic surgery.But the large sum of money became a big burden. She had to drop out of school and go to work to pay off the loan.

Besides the financial burden, potential health risks of plastic surgery also need to be considered.

＂If you have big problems with your look, you should wait until you are a full adult, and then decide if you want to do something about it,"Jiang said."Then,with a stable(稳定的）mind,you can consider inner and outer beauty,and whether plastic surgery is for you.”

1. Why does the author mention Xiao Tong in the first paragraph?

A．To explain what plastic surgery is.

B．To praise her bravery to live a different life.

C．To show the popularity of plastic surgery.

D．To introduce a new way to start university.

2. What does Xiao Zhen lose for her surgery?

A．Freedom.

B．Education.

C．Health.

D．Confidence.

3. What is Jiang Wenxiu's attitude towards plastic surgery?

A．Admiring.

B．Worried.

C．Cautious(谨慎的）

D．Satisfied.

4. What is the best title of the passage?

A．Popular plastic surgery.

B．Never take plastic surgery.

C．What makes plastic surgery popular?

D．Show your confidence in plastic surgery.

【推荐3】In the villages of the English countryside, there are still people who remember the good old days when no one bothered to lock their doors. There simply wasn’t any crime to worry about.

Amazingly, these happy times appear still to be with us in the world’s biggest community. A new study by Dan Farmer, a gifted programmer, using an automated investigative program of his own called SATAN, shows that the owners of well over half of all World Wide Web sites have set up home without fitting locks to their doors.

SATAN can try out a variety of well-known hacking tricks on an Internet site without actually breaking in. Farmer has made program publicly available, among much criticism. A person with evil intent could use it to hunt down sites that are easy to steal in.

But Farmer is very concerned about the need to alert the public to poor security and, so far, events have proved him right. SATAN has done more to alert people to the risks than cause new disorder.

So is the Net becoming more secure? Far from it. In the early days, when you visited a Website, your browser simply looked at the content. Now the web is full of tiny programs that automatically download when you look at a Web page, and run on your own machine. These programs could, if their authors wished, do all kinds of nasty things to your computer.

But let’s look on the bright side. Given the lack of locks, the Internet is surely the world’s biggest (almost) crime-free society. Maybe that is because hackers are fundamentally honest. Or that there currently isn’t much to steal. Or because vandalism (蓄意破坏) isn’t much fun unless you have a special dislike for someone.

Whatever the reason, let’s enjoy it while we can. But expect it all to change, and security to become the number one issue, when the most influential inhabitants of the Net are selling services they want to be paid for.

1. What does the underlined sentence in paragraph 2 mean?

A．Many Internet sites are not well protected.

B．Those happy times appear still to be with us.

C．There simply wasn’t any crime to worry about.

D．Hackers don’t actually break into an Internet site.

2. What can SATAN be used to do?

A．To prevent hackers breaking into websites.

B．To investigate the security of Internet sites.

C．To improve the security of the Internet system.

D．To download useful programs and information.

3. What’s the author’s attitude to SATAN?

A．Favorable

B．Indifferent

C．Cautious

D．Doubtful

4. What’s the purpose of the passage?

A．To promote and sell the SATAN program.

B．To advocate people fleeing from the Internet.

C．To make netizens aware of the security of the Internet.

D．To inform netizens that the Internet is safe with SATAN.

【推荐1】If humans were truly at home under the light of the moon and stars, we would go in darkness happily, the midnight world as visible to us as it is to the vast number of nocturnal (夜间活动的) species on this planet. Instead, we are diurnal creatures, with eyes adapted to living in the sun’s light. This is a basic evolutionary fact, even though most of us don’t think of ourselves as diurnal beings. Yet it’s the only way to explain                    what we’ve done to the night: We’ve engineered it to receive us by filling it with light.

The benefits of this kind of engineering come with consequences -- called light pollution -- whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design, which allows artificial light to shine outward and upward into the sky. Ill-designed lighting washes out the darkness of night and completely changes the light levels -- and light rhythms -- to which many forms of life, including ourselves, have adapted. Wherever human light spills into the natural world, some aspect of life is affected.

In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze (霾) that mirrors our fear of the dark. We’ve grown so used to this orange haze that the original glory of an unlit night -- dark enough for the planet Venus to throw shadows on Earth -- is wholly beyond our experience, beyond memory almost.

We’ve lit up the night as if it were an unoccupied country, when nothing could be further from the truth. Among mammals alone, the number of nocturnal species is astonishing. Light is a powerful biological force, and on many species it acts as a magnet (磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.

Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times brighter than normal, throwing nearly every aspect of their behavior out of joint, including their nighttime breeding choruses. Humans are no less trapped by light pollution than the frogs. Like most other creatures, we do need darkness. Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.

Living in a glare of our own making, we have cut ourselves off from our evolutionary and cultural heritage-the light of the stars and the rhythms of day and night. In a very real sense, light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way -- the edge of our galaxy -- arching overhead.

1. According to the passage, human beings ________.

A．prefer to live in the darkness

B．are used to living in the day light

C．were curious about the midnight world

D．had to stay at home with the light of the moon

2. The writer mentions birds and frogs to ________.

A．provide examples of animal protection

B．show how light pollution affects animals

C．compare the living habits of both species

D．explain why the number of certain species has declined

3. It is implied in the last paragraph that ________.

A．light pollution does harm to the eyesight of animals

B．light pollution has destroyed some of the world heritages

C．human beings cannot go to the outer space

D．human beings should reflect on their position in the universe

4. What might be the best title for the passage?

A．The Magic Light	B．The Orange Haze
C．The Disappearing Night	D．The Rhythms of Nature

【推荐3】Don't drive your kids to school. Let them ride a bike to school.

In England 8.3 million children travel to school every day. It is reported that only a small number of pupils cycle to school (under 2%), although one in three children would actually like to.

Experts say that to stay healthy, children need at least one hour of moderate (适度的) exercise every day. But only six out of ten boys and four out of ten girls get that. One of the reasons is that parents have developed a habit of driving their children to school when they could just walk or ride a bike to school.

Teachers often say that children who walk or ride a bike to school are more ready to listen to their classes, ask and answer questions in class than those driven by car, and the school journey is a good chance for children to learn about road safety and other life skills. Also, for many children, riding a bike is more fun than going to school by car.

Most parents know the benefits. Then what's stopping them from letting their kids ride a bike? Safety is the number one worry for them. But actually riding a bike is not as dangerous as parents think it is.

When you decide to buy a bike, you should be aware (意识到) that a bike that is too big or too small is dangerous. Don't try to get a bike that your child will “grow into”. Get the right size in good working order. Generally, 20­ inch wheels are on bikes for 5-8 year old; 24 ­inch wheels are for 9-11 year old; 26 ­inch wheels are suitable for those over 11, and some older children should even take bikes with 28 ­inch wheels, but the main thing is that the bike fits your child.

1. This passage is mainly written for ________.

A．teachers whose students have asked their parents to drive them to school

B．children who have asked their parents to drive them to school

C．parents who drive their children to school

D．parents who drive to work

2. Which of the following benefits of cycling to school is NOT mentioned in the passage?

A．It will help children keep healthy.

B．It will make children more active in class.

C．It will make children feel freer.

D．It will be more fun for children.

3. Parents don't allow their children to ride a bike to school mainly because ________.

A．their children don't want to

B．they are worried about their children's safety

C．they don't know what size bike to choose

D．they haven't enough money to buy a bike

4. Generally, what size bike is suitable for a 10­year­old child?

A．A bike with 20­inch wheels.

B．A bike with 24­inch wheels.

C．A bike with 26­inch wheels.

D．A bike with 28­inch wheels