1 . Be it the flu or the coronavirus (冠状病毒), we can all take one basic step to keep ourselves healthy--wash our hands regularly. But how
It was 1846
While looking after the women, Semmelweis noticed something
Handwashing was finally officially adopted in the 1980s by the United States Centers for Disease Control and Prevention. They
A.surprised | B.thrilled | C.embarrassed | D.disappointed |
A.volunteer | B.nurse | C.sponsor | D.pioneer |
A.that | B.when | C.which | D.where |
A.were comprised of | B.made up | C.consisted of | D.composed of |
A.magic | B.concern | C.tale | D.secret |
A.deadly | B.dead | C.deathly | D.dying |
A.appealing | B.practical | C.odd | D.different |
A.tended to | B.taken care | C.calmed down | D.worried about |
A.with | B.at | C.on | D.in |
A.treated | B.harmed | C.affected | D.infected |
A.demanded | B.commanded | C.expected | D.recommended |
A.leapt | B.changed | C.declined | D.ranged |
A.Otherwise | B.Instead | C.Therefore | D.Nevertheless |
A.unwilling | B.refused | C.ashamed | D.pretended |
A.referred | B.thought | C.identified | D.looked |
2 . We live in a time when various illnesses and conditions can he treated with just a few pills or spoonful of liquid. Unfortunately for us, many medicines come with a bitter and unpleasant taste that can make taking them more difficult. There are, however, a few ways you can overcome a medicine’s taste and keep yourself healthy at the same time.
The easiest way to take bitter liquid medicine is by mixing it with a better-tasting drink. This is usually fine with most medicines, but you have to be careful. There could be interactions between your drug and certain liquids. Check with your doctor and ask what is the best kind of liquid for your medicine, and if there are any juices that will interact with your drug.
Medicines usually have less taste when cold. If you can’t thin your medicine, you can try serving it cold to reduce the bitter taste. Leave it in the refrigerator for about an hour before taking it to ensure that it is sufficiently cold. Suck on an ice cube before taking the medicine. This will numb (使麻木) your mouth and make it harder to taste. With your mouth numbed, you can swallow the medicine before getting too much of a bitter taste.
Crush (碾碎) your pills and mix them into food. If you’ve consulted your doctor and confirmed that it is safe to crush your pills, then use this opportunity to take your medicine with food you enjoy. Many methods for taking pills involve crushing or breaking the pills and mixing them into food. Before doing this, make sure this won’t lower the effectiveness of your medicine. Some pills have time-release coating and can be harmful if crushed clown.
1. What problem is mentioned in paragraph 1?A.We are threatened by various illnesses. |
B.We can’t find a cure to most diseases. |
C.Many medicines don’t work well at all. |
D.Many medicines taste bitter and unpleasant. |
A.Certain liquids reduce the medicine’s effectiveness. |
B.It is illegal to do so without a doctor’s permission. |
C.Only doctors really know which juice tastes good. |
D.Some medicines interact with each other in liquids. |
A.To make medicines taste good. |
B.To let the mouth temporarily lose taste. |
C.To improve curative effect |
D.To get rid of the side effect |
A.A biology textbook. | B.A research paper. |
C.A health magazine. | D.A travel brochure. |
3 . Kim Hyung-ho arrived in China from the Republic of Korea on Aug 24,1992, which happened to be the same day that the two countries officially established diplomatic relations. Kim, just 19 at the time, came to China to study traditional Chinese medicine (TCM), a medical system with thousands of years of history and which enjoys popularity in many countries.
Kim’s passion for TCM took root in his teenage years after he had a twisted ankle treated with acupuncture. “It’s incredible that a little needle can have such magical powers. That experience inspired me to learn authentic TCM in the place from which it originated,” recalls Kim.
In 2013, he was hired as a TCM specialist by the international clinic of Qingdao Municipal Hospital. “Doctor Kim is a professional, hardworking and nice,” says Sun Jie, director of the clinic. “He also helps bridge the communication gap between our staff and Korean patients.” For those who have difficulty moving around, Kim will go to the patient’s home to offer treatment.
Apart from his daily work, Kim has also volunteered to provide free medical consultations in the countryside. He found that many rural people have been suffering from long time diseases such as high blood pressure, but are not aware of their conditions, let alone attend regular checkups. As a result, Kim led fellow volunteers to collect lists of people from different villages. The lists were handed to local authorities to keep track of the patients’ treatment. Kim also provided guidance for village doctors, which helped improve the standard of treatment in the area.
Three decades have passed since Kim set foot in China, and he’s very grateful for what he has gained in the country. “Medicine does not have boundaries. As a TCM doctor, I will continue to communicate with doctors in Korea and other countries to help it spread and flourish even further, so that more people can understand its excellence,” says Kim.
1. When did Kim become interested in TCM?A.He learned the long history of TCM. |
B.China and Korea had a close relationship. |
C.He was treated with TCM when he was young. |
D.Chinese medicine enjoyed great popularity in Korea. |
A.Korean patients are specially treated. |
B.Some rural patients will be tracked by volunteers. |
C.A blind patient may get a home treatment by Kim. |
D.High blood pressure patients will be completely cured. |
A.Crash. | B.Develop. | C.Remain. | D.Increase. |
A.To express patients’ demand. | B.To recommend TCM treatment. |
C.To explain a medical phenomenon. | D.To introduce an international doctor. |
4 . The human spine doesn’t just help us stand up straight. Inside the spine is the spinal cord (脊髓), which carries important information between the head and the lower part of the body. This information moves around as tiny, short bursts of electricity which travel between the brain and the other parts of the body.
The legs and feet send “sense” information to the brain, saying they’re hurt or hot. And the brain sends signals to the lower body, perhaps telling the legs to walk, dance, or sit down. Towards the bottom of the spine, nerves leave the spine. Different nerves help control different groups of muscles in the legs.
When someone’s spinal cord is hurt, this important pathway can get damaged. When that happens, a person is “paralyzed”, and he can’t move his legs. Now scientists in Lausanne, Switzerland have given three paralyzed men the ability to walk again. Each of the three men had damaged their spinal cords in motorcycle accidents and couldn’t move their legs.
To walk again, the man had operation. A special device was placed directly on the lower part of their spinal cords, below their injury. The implant (植入物) contained sixteen electrodes, which are small objects that electricity can pass through. The researchers made sure the electrodes on the implant were lined up with the nerves that control the leg muscles. To begin with, the scientists controlled the implants from a computer. Just hours after the implants were first used, all three men were taking steps, with support.
In the past, scientists have had some success with similar implants in the lower spine. But this research is different. The patients’ brains aren’t sending messages to their legs. The researchers used computers to set modes of movement—like taking a step—that would work well with each patient. The patients then used the computer to choose the pattern they wanted. That caused the implant, and the muscles to move in the chosen way. Over time, the men were able to walk entirely on their own, using a special walker with buttons to trigger each leg.
The solution isn’t perfect. It’s very expensive, it requires difficult surgery, and the patients can’t walk without the system. But the scientists are expecting that in the future, this technology will allow many paralyzed people to begin to walk again in just hours.
1. How does the spinal cord function in one’s body?A.By sending out signals to the lower body. | B.By controlling different groups of muscles. |
C.By providing electricity for the body. | D.Passing on information between body parts. |
A.They receive messages from patients’ brains. |
B.They work well by successful operations. |
C.They are driven by computers to aid the patients to walk around. |
D.They cause the muscles to function in a specific way. |
A.Critical. | B.Objective. | C.Doubtful. | D.Favorable. |
A.To compare different implants. |
B.To show the important role of spinal cord in our bodies. |
C.To inform us of a new invented implant. |
D.To identify the weaknesses of former implants. |
5 . Combining knowledge of chemistry, physics, biology, and engineering, scientists from McGill. University develop a biomaterial tough enough to repair the heart, muscles, and voeal cords. representing a major advance in medicine.
“People recovering from heart damage often face a long and tricky journey. Healing is challenging because of the constant movement tissues must withstand (承受) as the heart beats. The same is true for vocal cords. Until now there was no injectable (可注射的) material strong enough for the job,” says Guangyu Bao, a PhD candidate in the Department of Mechanical Engineering at McGill University.
The team, led by Professor Luc Mongeau and Assistant Professor Jianyu Li, developed a new injectable hydrogel (水凝胶) for wound repair, which is a type of biomaterial that provides room for cells to live and grow. Once injected into the body, the biomaterial forms a stable structure allowing live cells to grow or pass through to repair the injured organs.
“The results are promising, and we hope that one day the new hydrogel will be used to restore the voice of people with damaged vocal cords,” says Guangyu Bao.
The scientists tested the durability of their hydrogel in a machine they developed to copy the extreme biomechanics of human vocal cords. Vibrating (振动) at 120 times a second for over 6 million cycles, the new biomaterial remained undamaged while other standard hydrogels broken into pieces, unable to deal with the stress of the load.
“We were incredibly excited to see it worked perfectly in our test. Before our work, no injectable hydrogels possessed both high porosity (多孔性,疏松) and toughness at the same time. To solve this issue, we introduced a pore-forming polymer to our formula(配方),” says Guangyu Bao.
The innovation opens new ways of making progress for other applications like tissue engineering. The team is also looking to use the hydrogel technology to create lungs to test COVID-19 drugs.
1. What did the researchers develop the new biomaterial for?A.To experience a tricky journey. | B.To substitute damaged organs. |
C.To advance the progress of medicine. | D.To repair the injured organs. |
A.It is heavier but advanced. | B.It is injectable and strong. |
C.It is more expensive. | D.It is easier to break. |
A.Use it to cure COVID-19. | B.Increase its toughness for repairing lungs. |
C.Invent artificial organs for drug test. | D.Improve its formula further. |
A.To introduce a newly-developed material. | B.To stress the importance of innovation. |
C.To promote the sales of a new hydrogel. | D.To show his respect to the researchers. |
6 . Telehealth is a way to receive healthcare services far away through some kind of communication technology. Due to the COVID-19 pandemic (流行病), telehealth has become more valued and beneficial than ever before. People prefer to seek health services in a way that prevents possible disease transmission (传染).
Telehealth is a wide term that includes a variety of methods of virtual (虚拟的) healthcare delivery. Traditionally, the term telehealth might bring to mind that it might occur at the same time, two-way video visits between a healthcare professional and patient. But actually, telehealth includes more than these “e-visits”. It can include telephone calls, patient monitoring far away, or storing messages and sending messages of questions, photographs and test results.
Telehealth as we know it today began over 50 years ago when NASA developed telehealth services for astronauts on missions. It became clear that this would have effects on healthcare delivery on the Earth, as well. In the 1970s and 1980s, NASA funded multiple telehealth research projects across the populations, such as the Papago Indian Reservation and the Soviet Republic of Armenia. These projects were developed in 1993 and promoted the telehealth by using a variety of methods that have been improved.
It began in the 1970s and 1980s by using radios for telehealth communication, and then it developed into telephone telehealth in the 1990s. As technology has developed, telehealth methods have developed, too. Nowadays the telehealth includes secure messaging over applications, patient monitoring, and more. The COVID-19 pandemic has also contributed to the development of telehealth due to the necessity for social distancing.
1. What is the aim of telehealth?A.To prevent disease transmission. |
B.To offer healthcare services far away. |
C.To provide the assistance for a doctor. |
D.To improve communication technology. |
A.Receive face to face treatment. |
B.Get actual treatment by video visits. |
C.Take a self-guided online health exam. |
D.Receive virtual care for treatment far away. |
A.Its research was refused by government. |
B.Space exploration contributed to its coming into being. |
C.It was damaged by the necessity for social distancing. |
D.The COVID-19 pandemic prevented its development. |
A.What is telehealth? |
B.What can telehealth help? |
C.What value does telehealth have? |
D.What is the effect of telehealth technology? |
1. When will the man leave the hospital?
A.Tomorrow. | B.A week later. | C.Two days later. |
A.Paying for him. | B.Caring about him. | C.Visting his family. |
A.Get an X-ray. | B.Ice it. | C.Call a doctor. |
9 . Artificial intelligence (AI) technology may soon be a useful tool for doctors. For example, it may help them better understand and treat diseases like breast cancer (乳腺癌) in ways that were not possible.
Rishi Rawat teaches AI at a University in Los Angeles. He is part of a team of scientists who are researching how AI and machine learning can more easily recognize cancerous growths in the breast. He says, “You put information about cancer cells (细胞) into a computer and it will learn the cancerous growth patterns. The pattern recognition is very important to making decisions.”
At present, researchers have to take a thin piece of tissue (组织), put it on a small piece of glass and add color to better see the cell-growth patterns. That process could take days or even longer. Scientists say artificial intelligence can do it better than just count cells. Through machine learning, it can quickly recognize patterns, or structures, and learn how the cells are organized.
The hope is that machines will soon be able to make a quick recognition of cancerous cell-growth patterns that is free of human mistakes. Rawat adds that the process could be done “for almost no cost for the patients”. But having a large amount of information about cells is important for a machine to effectively do its job. Once the cancerous growth pattern is recognized, doctors still have to treat the patient. The form of treatment depends on the kind of cancer.
David Agus is another researcher of the team. He believes, “Computers will help doctors make better decisions and look for those patterns that the human brain can't recognize by itself. But they will not treat patients.”
1. What’s the advantage of AI technology?A.It treats breast cancer all by itself. |
B.It provides free cancer treatment for the patients. |
C.It recognizes the cancerous growth patterns faster. |
D.It helps doctors make fewer mistakes in cancer treatment. |
A.The process of treating cancers. | B.The process of adding color to cells. |
C.The process of taking a piece of tissue. | D.The process of recognizing the cell-growth. |
A.AI will not replace doctors. | B.AI will develop fast in the future. |
C.AI can be useless in treating cancers. | D.AI can provide the doctors with treatments. |
A.AI technology has a long way to go. | B.AI Makes Better Doctors. |
C.Future Cancer Treatments will be successful. | D.AI Helps Pattern Recognition. |
These days, doctors are using a new approach to healing, which is called tapping. This approach combines
By simply tapping points along the body while
Acupuncture opens energy highways in the body by sticking thin needles into the skin. Tapping takes a similar approach, but uses touch instead of needles
Everyone may have experienced some sorts of emotional discomfort in their lives. Although painful, it’s important to develop healthy ways to process their