Researchers at the University of Scotland have discovered a protein that can influence viruses developing and even can control cancer. Now the fight is on to fully understand how it works in the hope of turning the laboratory research into a treatment.
The protein is called Hira. Technically it is a histone（组蛋白）complex, but it is easier to understand in terms of what it can do. Three years ago Dr Taranjit Singh Rai and colleagues at the Beatson Cancer Institute and Glasgow University reported that Hira could possibly suppress the division of cells that causes cancer. In the course of that research, Dr Rai found out something unusual. In the lab they have established that the Hira protein has a role to play in the anti-viral fight, thus, making it have a fundamental role to play in fighting against cancer.
The trick in using it to fight diseases may lie in increasing Hira levels in our cells. “I think what researchers might be interested in is how we can increase levels of this protein to deal with the viruses better, Dr Rai said.
Dr Rai has led an international study and support has come from Cancer Research UK and the results are published in the journal Nucleic Acids Research. But there is a major concern that the research is still limited to the laboratory.
It is going to take some time, probably years, before this work can move out of the lab and into clinics and hospitals. But the researchers are excited Hira will one day be the basis of a new approach in medicine.
1. What does the underlined word “suppress" in Paragraph 2 probably mean?| A．Motivate. | B．Monitor. | C．Control. | D．Improve. |
| A．Hira has been used in the medical treatment. |
| B．More studies should be done on Hira. |
| C．The levels of Hira in cells are unchangeable. |
| D．Hira can bring about side effects. |
| A．Cautious. | B．Optimistic. |
| C．Disapproving. | D．Doubtful. |
| A．A new way to use the protein. |
| B．A new approach to improving the division of cells. |
| C．A new medicine that can fight diseases. |
| D．A protein that can stop viruses developing. |
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【推荐1】Getting paid to stay in bed all day sounds pretty good, but what if someone pays you $23, 000 to stay in bed for two months? That’s the deal that a medical research team in France is offering to 24 volunteers.
The researchers are looking for volunteers to help them study the effects of weightlessness (失重状态) on the human body and find ways to stop problems. Lying in bed isn’t exactly the same as being weightless, but the effects are alike.
When astronauts spend a long time in an environment with no gravity，their bodies change in many ways. After several months, their hearts don’t beat as hard. Their muscles become smaller and weaker. Their bones may be broken more easily. There may also be changes in the astronauts’ immune systems (免疫系统) and sleep habits.
The study will take 88 days. During the first two weeks, the volunteers will be tested to make sure of their levels of fitness. Then they will spend 60 days lying in bed with their heads lower than their bodies. They will have to do everything while lying down, including eating, brushing their teeth, and going to the bathroom. The rule is that they must have at least one shoulder touching the bed at all times. The last two weeks of the study will be spent trying to build up the volunteers’ fitness again.
Volunteers must be men between the ages of 20 and 45 who are in perfect health. The researchers completed one study in April. A second study will take place from September to December.
1. What do the astronauts face after they stay in a place with no gravity a long time?| A．Astronauts cannot eat food. |
| B．Astronaut’s hearts work weakly. |
| C．Astronauts’ work in an environment without gravity cannot begin. |
| D．Astronauts’ sleep habits in an environment without gravity remain the same. |
| A．She is a women. | B．He comes from the US. |
| C．He works in NASA. | D．He is fit and 30 years old. |
| A．The study will take 60 days. |
| B．The research is set to know the earth. |
| C．Researchers pay voluteers to stay in bed. |
| D．The voluteers cannot do anything during the experiment. |
| A．A medical magazine. | B．A short novel. |
| C．A grammar book. | D．A travel guidebook. |
【推荐2】In summer the extreme heat often makes people sweaty and restless. While people are annoyed by it, experts suggest summer is the best season to discharge(排放) your body’s toxins(毒素) and recover your energy.
One popular option is hot-stone massage(按摩). Therapists use smooth and heated stones, usually river rocks, to massage certain parts of the body, or place them on key points of the body. The warmth of the hot stones will improve blood circulation and also help relax muscles, while sweating is also believed to be good for discharging the body’s toxins.
Another popular option is hot-stone baths. The hot-stone bath will help the body discharge toxins and humidity(湿气) that accumulated during the last winter. Summer is the best season to build a good body. Rather than use water or steam to heat and wash the body, people simply wear a coat or something comfortable, and then lie on heated stone tablets made of hot stones, which are warmed to around 45oC. The body will gradually warm up and blood circulation will also be improved. More sweat will come out quickly. The sweat is smooth and fresh, not smelly like that released after sports activities. Such baths bring a number of health benefits, such as anti-aging, improved blood circulation and stress relief. The slimming effect of dieting can even be promoted.
Using hot stones for healing dates back to ancient times, but the modern renewal of hot-stone massage is generally credited to Mary Nelson, a native of Tucson, Arizona, America, whose trademark is “LaStone Therapy”.
The therapy is gaining wide popularity with many people, especially those who have jobs in cool air-conditioned rooms. The hot-stone therapy can help cure many diseases, including back pain.
1. What do people use to release toxins in our body according to the text?| A．Swimming in white water. | B．Living in cold winter. |
| C．Lying on the warm beds. | D．Discharging lots of sweat. |
| A．People should take advantage of summer to improve their health. |
| B．There are no toxins and humidity in the body in summer. |
| C．Using water of about 45oC to wash the body is good for the health. |
| D．Sports have greater effects on the health than hot-stone massage. |
| A．It was invented by Mary Nelson, an American. |
| B．It successfully cured many people of cancer. |
| C．It is popular with people because of its excellent effects. |
| D．It can help people avoid sweating too much in hot summer. |
| A．The origin and development of the hot-stone therapy |
| B．A healthy and comfortable lifestyle |
| C．How to live comfortably in summer |
| D．The amazing functions of the hot-stone therapy |
【推荐3】I learned an important lesson from one of my patients. When I first met Linda, she was only six years old, beautiful and energetic. She had an accident when she fell into the fire on a camping trip, leaving 30 percent of her skin surface damaged.
Linda would require several weeks in the hospital and three additional surgeries (手术). Between each operation, nurses daily took her for disinfection (消毒).
Overnight, the dressings (敷料) would stick to the wound and have to be pulled away. Each step was more painful for Linda than the previous one. For an adult, the agonizing (折磨人的)pain and daily fear proves overwhelming. For a child, it has an impact forever. Linda’s life would never be the same.
I took care of Linda for the next several years, revising her scars and freeing areas of tightness in her face and neck. Over that time, her scarring faded and her appearance improved significantly. Eventually, her family moved away and I lost track of her.
Years later, at a national meeting, I ran into a plastic surgeon I knew who told me he had met a former patient of mine. It was Linda, she was doing extremely well and she was his colleague and not his patient. Linda had become a nurse and worked with him in a burn unit.
She was the nurse the patients most often asked to clean their wounds and change their dressings. Her compassion (同情心) and her courage in returning to a burn unit inspired their confidence and reduced their fears. Linda turned her pain into compassion. She devoted every day of her life toward helping others overcome their pain.
Physicians can be frustrated and overwhelmed when we don’t have enough time in a day to complete everything we need to do. Linda taught me the importance of slowing down. Among the best gifts we, as physicians, can give our patients, whether in the exam room or at the bedside in the hospital, is to take the time to show the compassion we feel.
1. Which of the following words can best describe Linda according to the story?| A．Outspoken. | B．Well-behaved. | C．Painful. | D．Strong-minded. |
| A．Pulling away the dressings. | B．Going through disinfection. |
| C．Revising the scars. | D．Freeing the areas of tightness. |
| A．Experience. | B．Patience. | C．Compassion. | D．Friendliness. |
| A．Linda was thankful for the author’s help. | B．Linda was mostly trusted by her patients. |
| C．Linda’s experience led her to be a nurse. | D．Gifts make patients confident in operations. |
【推荐1】They make a guest appearance in at least half of the articles on Medical News Today. They are responsible for many of the biggest breakthroughs in medicine. However, the humble lab mice also shoulder much of the blame when the failure of drugs to translate from animal models to humans keeps worrying the whole of medical research. Should scientists abandon lab mice altogether?
Mice were introduced into the lab back in the 1920s. An ambitious young American geneticist Clarence Cook Little strongly believed that cancer was an inheritable (有遗传性的) disease, and that mice were the ideal subjects for his experiments.
Other animals were, and still are, used to study disease. Cats and dogs are popular, as well as chimpanzees. Of course, ethical (伦理的) considerations get more complicated the further up the food chain you go. And mice are in sufficient numbers for researchers to conduct thousands of trials. Add to that the problem of cost: A standard lab mouse costs about $20---far cheaper than a healthy cat or dog. So their importance in scientific research has become well-established.
We share more than 97 percent of our working DNA with mice, a consequence of a shared ancestor 75 million years ago. This similarity has been both a blessing and a curse. While we share many basic biological processes, it is the three percent of the genes which set us apart from mice that can have a big influence on how our bodies work.
Mice may not always be the perfect model for understanding our own bodies, but they do hold real value to researchers. Their usefulness will only increase as scientists work out better ways to modify (修改) their genes to compensate for their shortcomings. The difficult part of the issue may be that researchers need to be more critical as they evaluate the type of model that is best for their experiment.
In the end, the story of scientists’ relationship with lab mice will possibly be one of gradual advances to improve an imperfect system. This is exactly how most scientific research progresses — by critically examining what we know to expand our knowledge of what we do not.
1. What does the underlined word “they” in the first paragraph refer to?| A．American geneticists | B．cats and dogs |
| C．lab mice | D．breakthroughs in medicine |
| A．Why do drugs that work in mice fail when tried in humans |
| B．Why are mice the ideal subjects for medical research |
| C．Why do we and mice share more than 97% of our working DNA |
| D．How can we understand our own bodies by studying lab mice |
| A．Mice are in sufficient numbers because they are at the lower part of the food chain. |
| B．Many scientist are considering stopping the use of lab mice. |
| C．More genetically modified mice will be used in medical research in the near future. |
| D．It will become easier for researchers to choose the proper type of lab mice. |
| A．Disappointed | B．Supportive |
| C．Indifferent | D．disapproving |
【推荐2】An antibacterial drug obtained from the liquid of an Australian tree has shown promise for treating chronic (慢性的) wounds in animal tests.
Chronic wounds are common in people with diabetes (糖尿病), because poor circulation and other symptoms slow down healing. Such wounds are painful and have a high risk of infection.
Doctors increasingly want to control the use of antibiotics (抗生素) in order to minimize the development of antibiotic-resistant bacteria. To look for alternatives, David Thomas at Cardiff University in the UK and his colleagues investigated chemicals obtained from the liquid of the blush wood tree, which grows in Australia.
They tested a gel containing a promising chemical called EBC-1013 in two animals: mice used to model diabetes, with chronic wounds, and milk cows. All milk cows have their horns taken off, so the researchers applied the treatment to this wound.
In the cows treated with EBC-1013, 75 percent of the wounds were recovered after 28 days, compared with just 25 percent of untreated wounds. In the mice, complete wound recovery was observed in five of the seven animals studied, whereas none of the seven wounds was recovered in the control group.
Bacteria in chronic wounds are more likely to form a sticky material called a biofilm. They are resistant to antibiotics, making such wounds difficult to treat. The new drug appears to disrupt the structure of biofilms and cause the production of cells and proteins that promote recovery.
“The next challenge will be to show that these preclinical findings translate into the clinic and that they can be developed into a safe and cost-effective treatment for chronic wounds,” says Matthew Hardman the at University of Hull, UK.
1. What’s the purpose of the research on the tree liquid?| A．To increase the use of antibiotics. | B．To find replacements for antibiotics. |
| C．To reduce the growth of the bacteria. | D．To strengthen the circulation of patients. |
| A．Treat. | B．Destroy. | C．Improve. | D．Arrange. |
| A．They cause safety concern. | B．They enjoy praise from doctors. |
| C．They remain to be further developed. | D．They have offered affordable treatment. |
| A．People with diabetes are sure to recover |
| B．Tree liquid attracts researchers’ attention |
| C．Antibiotics lead to antibiotic-resistant bacteria |
| D．Drug from the liquid could treat chronic wounds |
【推荐3】Windbreaks are barriers formed by trees and other plants. Farmers plant these barriers around their fields, which help prevent the loss of soil and stop the wind from blowing soil away. They also keep the wind from damaging or destroying crops. Besides, extra trees and plants can be cut down and used or sold for wood.
Windbreaks can be highly valuable for protecting grain crops. For example, in parts of West Africa grain harvests were twenty percent higher in fields protected by windbreaks compared to fields without them.
But here is something interesting about windbreaks. They seem to work best when they allow some wind to pass through the barriers of trees or plants around a field. If not, then the movement of air close to the ground will lift the soil. Then the soil will be blown away. For this reason, a windbreak works best if it contains only 60 to 80 percent of the trees and plants that would be needed to make a solid line. An easy rule to remember is that windbreaks can protect areas up to 10 times the height of the tallest trees in the windbreak.
There should be at least two lines in each windbreak.One line should be large trees. The second line, right next to it, can be shorter trees or other plants with leaves. Locally grown trees and plants are considered the best choices for windbreaks. Trees reduce the damaging effects of wind and rain. Their roots help protect soil from being washed away. And trees can provide animals with shade from the sun.
1. The advantages of building a windbreak are as follows EXCEPT ________ ．| A．keeping the wind from destroying grain crops | B．increasing the production of grain harvests |
| C．providing humans with shade from the sun | D．reducing the damaging effects of wind and rain |
| A．the movement of air lifts the soil | B．windbreaks allow some wind to pass through |
| C．large trees are lined with short ones | D．windbreaks can stop the wind getting through |
| A．100 square feet | B．151 square feet | C．240 square feet | D．300 square feet |
| A．Extra trees and plants can be cut down for wood. |
| B．The environment is going from bad to worse. |
| C．Trees and plants from abroad are the best for windbreaks. |
| D．Windbreaks can contribute to agriculture harvests. |
【推荐1】Do you prefer reading an e-book or a physical version? It might be a surprise, but for most people, old school print on paper still wins.
Publishers of books in all formats made almost $26 billion in revenue (收益) last year in the U.S., with print making up $22.6 billion and e-books taking $2.04 billion, according to the Association of American Publishers’ annual report 2018. Those figures include trade and educational books, as well as fiction.
While digital media has developed quickly, people still love to own physical books, according to Meryl Halls, managing director of the Booksellers’ Association in the U.K. “I think the e-book bubble has burst somewhat. Sales are flattening off. The physical objects are attractive.” she said.
People love to display their books, Hall added. “The book lover loves to have a record of what they have read. It’s about signaling to the rest of the world and about decorating your home, because people want to use it to indicate something about themselves.” And for Halls, there is also a desire to escape the screen. Part of the reason is that it’s harder to have an emotional relationship with what you’re reading if it’s on an e-reader.
As for the future of books, all formats will continue to be in demand, says Jacks Thomas, director of the London Book Fair. “People always need knowledge and people always need stories, so from that point of view, the book industry, in whatever format, has a strong future,” she says.
1. What do we know from the passage?| A．E-books help escape the screen. |
| B．Publishers of books like e-books. |
| C．Details are more accurate in physical books. |
| D．Print books make a bigger profit than e-books. |
| A．Cutting down. |
| B．Being controlled. |
| C．Stopping growing. |
| D．Keeping increasing. |
| A．They are a signal of the world. |
| B．They are used to build houses. |
| C．They help people record something. |
| D．They are good to strengthen a relationship. |
| A．Its future promises to be good. | B．Books won’t be needed. |
| C．No different formats coexist. | D．Digital media will replace physical books. |
Tu Youyou, a scientist at the China Academy of Chinese Medical Sciences, has no postgraduate degree. She has never studied or done research abroad. She is neither a member of the Chinese Academy of Sciences nor the Chinese Academy of Engineering. However, the 81-year-old pharmacologist has become the first scientist on the Chinese mainland to win a Lasker Award, the medical prize of the Albert and Mary Lasker Foundation.
The Lasker Awards have existed since 1945. Tu was presented the 2011 Lasker Clinical Medical Research Award on September 23. She discovered a drug called artemisinin . The drug is now widely used against malaria .
Tu and her colleagues joined a government project to find a new malaria drug in the late 1960s during the "cultural revolution" (1966-76). They made 380 herbal extracts from 200 potential recipes. The recipes came from traditional Chinese medical books. The team then tested them on malaria-infected mice. Finally Tu became interested in an extract of the plant qinghao, or sweet wormwood .
According to an ancient Chinese medicine book, qinghao was once used to treat malaria. However, the extract they made in the lab didn't work well. Maybe, thought Tu, the effective ingredient in qinghao was destroyed by high temperatures. Therefore, Tu tried to make the extract with an ether which has a much lower boiling point than water.
In 1971, after more than 190 failures, Tu finally got an extract that was 100 percent effective against the malaria parasites .The extract was called qinghaosu, later renamed artemisinin.
According to a statement on the Lasker Foundation website, during the past four decades, Tu's drug has saved millions of lives. It is especially important for children in the poorest and least developed parts of the world. However, not many people knew of the scientist until she won the Lasker Award this month.
Lasker Awards are known as "America's Nobels" for the reason that in the last two decades, 28 Lasker Prize winners have gone on to receive the Nobel Prize, and 80 since 1945, according to Xinhua News Agency.
" The discovery of artemisinin is a gift to mankind from traditional Chinese medicine," Tu said when she received the a-ward. "Continuous exploration and development of traditional medicine will, without doubt, bring more medicines to the world.
1. What can we infer from the second paragraph?
| A．It is unnecessary to study abroad as a scientific researcher. |
| B．Chinese medicine used not to be recognized in Western countries. |
| C．Tu achieved great things although she didn't have an impressive background. |
| D．Tu is the first female scientist to win a Lasker Award. |
| A．began with a private project |
| B．succeeded during the first experiments |
| C．faced many different opinions |
| D．made extracts in a creative way |
| A．It is a very cheap medicine and easy for them to get hold of. |
| B．They believe in the effect of Chinese medicine. |
| C．There are no other cures for malaria. |
| D．It has the fewest side effects for children. |
| A．are more influential than Nobel Prizes in the medical field |
| B．are awarded to those who have made great medical achievements |
| C．are awarded to more Americans than people from any other country |
| D．are usually awarded to scientists who are not famous in their field |
【推荐3】Scientists have already studied how dogs respond to people’s behavior and speech. But researchers are just scratching the surface of human-cat interactions. House eats do appear to respond to the expressions on people’s faces. Cats can also tell different human voices. But can cats recognize their own names?
Saito, a psychologist at Sophia University in Tokyo, and her colleagues decided to find the answer. They asked the owners of 77 cats to say four nouns of similar length followed by the cat’s name Cats gradually lost interest with each random (随机的) noun. But when the owner said a cat’s name, the cats reacted strong. They moved their ears, head or tail, changed their back paw position. And, of course, they meowed.
These findings mean that cats join the ranks of animals that have shown some sort of response in experiments to the names people give them. Those animals include dogs, dolphins, apes and parrots. It’s hard to compare across species, though. Some dogs, for example, can tell the difference between hundreds of human words.
The study makes a strong case that cats are perfectly capable of recognizing their own names. Getting a treat or hugs as a reward is part of how cats learn to recognize a name. However, owners may also use their cat’s name in a negative setting, like yelling at Fluffy to get off the stove. As a result, cats can probably learn to associate these familiar utterances with good and bad experiences, Saito notes. And that might not be great for cat-human relations. So only using a cats name in a positive context and using a different term in a negative context could help cats and humans communicate more clearly.
So cats may recognize their names. But will they come when called? Don’t get your hopes up.
1. What made cats react strongly according to Saito’s study?| A．Their owners. | B．Their own names. |
| C．A random noun. | D．A delicious meal. |
| A．they can recognize hundreds of human words |
| B．it’s easy to tell their difference from other animals |
| C．it’s difficult to make a comparison among animals |
| D．they will respond on hearing of their names like cats |
| A．Words. | B．Situations. | C．Observations. | D．Owners. |
| A．Giving a treat or hug as a reward. |
| B．Calling their name in a positive context. |
| C．Using a different term in a negative setting. |
| D．Associating their name with bad experiences. |
【推荐1】Full stops intimidate young people when used in social media communication as they are interpreted as a sign of anger, according to linguistic experts.
Teenagers and those in their early twenties, classified as Generation Z, have grown up with smart phones which they use to send short messages without full stops. Linguistic experts are now investigating why teens interpret a correctly-punctuated(加标点)text as a signal of irritation. According to experts, youngsters used to communicating electronically break up their thoughts by sending each one as a separate message, rather than using a full stop, which they use only to signal they are annoyed or irritated.
In 2015, a study from Binghamton University in New York suggested that people who finish messages with full stops are perceived as insincere. The study involved 126 undergraduates and the researchers found that text messages ending in the most final of punctuation marks- eg, “Let's go together.”- were perceived as being less sincere. Unusually, texts ending in an exclamation (感叹) point-“I'm proud of you!”-are deemed heartfelt or more profound.
Research leader Celia Klin said at the time: “When speaking, people easily convey social and emotional information with eye gaze, facial expressions, tone of voice, pauses and so on. However, people obviously can't use these mechanisms when they are texting. Thus, it makes sense that texters rely on what they have available to them - emoticons, deliberate misspellings that mimic speech sounds and, according to our data, punctuation.”
The full stop derives from Greek punctuation introduced by Aristophanes of Byzantium(拜占庭的阿里斯多芬尼斯：古希腊早期喜剧代表作家、诗人)in the 3rd Century BC.
1. What does the underlined word “they” in paragraph 1 refer to?| A．Young people. | B．Full stops. |
| C．Social media tools. | D．Linguistic experts. |
| A．Teens never use a full stop in all short messages. |
| B．Teens used to use a full stop, but they don't now. |
| C．Teens break up thoughts by sending a separate message. |
| D．Teens consider a full stop to be insincere and formal. |
| A．Neutral. | B．Subjective. |
| C．Approving. | D．Critical. |
| A．Long history of the full stop. |
| B．New interpretation of the full stop. |
| C．Fundamental usage of the full stop. |
| D．Mysterious disappearance of the full stop. |
【推荐2】China will have the most 5G connections of any nation by 2025, according to a new study, while Europe will fall behind Korea, the United States and Japan in terms of 5G penetration (渗透) by that year.
5G is the fifth generation of network technology. It is expected to bring unbelievable speeds to Internet users, with some operations running 10 times faster than on 4G network. 5G is also expected to unlock potential in a lot of new services, including artificial intelligence, science of robots, self-driving cars, and the Internet of things.
The GSMA said that China’s three major mobile operators—China Unicom, China Mobile, and China Telecom—are already moving ahead with 5G works. While most nations will have 5G by updating existing foundations, the study noted that China plans to build part of its 5G networks.
One of the major distinguishing factors between Chinese mobile operators and those in the rest of the world is the intention to erect the new and independent 5G networks. That is, China is determined to build a completely advanced 5G. The high cost underlines China’s seriousness about paying whatever it takes.
Korea will lead the world in terms of 5G penetration in 2025, when 66 percent of the nations’ total connections will be 5G, according to GSMA. This compares to 50 percent in the US, 49 percent in Japan, 36 percent in China, 30 percent in Europe, and a global average of 18 percent. Out of the five economies leading on 5G, Europe will have the lowest participation in 2025, as the area is moving more slowly in having its 5G networks.
1. What is the future of 5G in China?| A．It will develop rapidly. | B．It may be lack of financial support. |
| C．It will move forward slowly. | D．It may fall behind Europe. |
| A．Bring up. | B．Set up. |
| C．Turn up. | D．Pick up. |
| A．Some Chinese will use 5G in 2025. |
| B．Koreans cannot possess 5G in 2025. |
| C．Only five countries will have 5G in 2025. |
| D．Europe will pay little attention to 5G in 2025. |
【推荐3】The founder of electric supercar maker Rimac has said it won’t make sense for people to own or drive their own cars in the coming decades.
According to Rimac, most people will no longer own or operate their own cars in the future.Instead, vehicles will be shared, self—driving and electric.These changes are already starting. “There will be people who still want to own their cars and drive their cars and I am happy for that because that is our business, ”Rimac said. “Long term, I think 20 years down the road, it will be totally changed and people will not own or drive their cars anymore.”Rimac’s most recent car.the C—Two, comes off the production line next year.
Rimac is well aware the industry is changing quickly due to the rise of self-driving vehicles and electric batteries, and says in the next 20 years driving as we know it may exist mainly as a hobby. “I really believe that humanity goes for things that make sense.”he told Newsweek. “If you look at 1.3 million people dying every year on the roads, if you look at the impact it has on economies based on traffic jams and time lost, it’s so much of a negative impact to society that I think such a huge benefit can be gained if people stop driving.”
“Let’s look into the future.You are standing in front of the choice of either investing a huge amount of your money in buying a hunk of metal and plastic for 30, 40, 50 thousand dollars, or you have the convenient option of paying as you go, the car picks you up in a few minutes, it’s a nice environment and you spend a few dollars per day on your transport.”
“When you take the driver out of the car, transport can be much cheaper and you can use the time to do other things, instead of sitting behind a steering(转向)wheel and not doing anything else.So I think the choice for the vast majority of people will be the obvious one.”
1. What can we learn from paragraph 2?| A．The majority of people will purchase cars. |
| B．Huge changes will take place in car industry. |
| C．Driving cars will enjoy more popularity. |
| D．The car business is gradually disappearing. |
| A．The rapid growth of self-driving cars. |
| B．The rise of shared vehicles. |
| C．The increasing demand of customers. |
| D．The advanced production line. |
| A．Uncertain. | B．Confused. | C．Optimistic. | D．Frightened. |
| A．Self-driving cars meet new challenges. |
| B．Self-driving cars avoid human errors. |
| C．Possessing or driving cars won’t be a must. |
| D．Conventional cars will be completely replaced. |
