1 . Nearly 40 percent of Americans over the age of 65 take five or more different drugs, and doctors often simply have to monitor patients to see if any of those drugs combine to createnegative side effects. When a doctor prescribes(给……开药)a patient more than one drug atthe same time, they currently have no way to predict whether that combination of these drugswill have a negative side effect. A new system from a team of computer scientists at Stanford University presents a novel solution—an AI-driven computer system that can predict theconsequences of combining two drugs.

Drug combinations are a remarkably unstudied area, but as Marinka Zitnik explains, “It’spractically impossible to test a new drug in combination with all other drugs, because just forone drug that would be five thousand new experiments.” Besides, to maintain accuracy alsoneeds strict research procedures.

So Zitnik and her Stanford colleagues set out to find a solution to the problem. They created a massive deep learning system trained on data encompassing(包含)over l9,00 oproteins and how different drugs interact with those proteins. The system is called Decagon, and it can effectively predict the consequences of combining any two different drugs.

To test out Decagon’s predictive abilities the team examined 10 of the systems predicted drug pair interactions that didn’t have clearly known unfavourable interactions. The researchers found new supporting case study evidence backing up 8 of those 10 predictions. For example, one prediction from Decagon suggested muscle inflammation(炎症) would be caused by combining a certain cholesterol(胆固醇) drug with a blood pressure medication. This negative side effect of combining those two drugs was only recently confirmed by a casestudy published in 2017.

The next stage in the project is to try to turn Decagon into a more user-friendly tool thatdoctors can easily navigate(导航) for information when prescribing combinations of drugs, benefiting more people. At this stage, the system only evaluates(评估) drug pairs but there searchers hope to expand that into more complex combinations of drugs in the future.

1. What problem faces doctors when prescribing several drugs together?

A．They can’t prevent side effects of drugs.

B．They don’t know the bad influences of the combination.

C．They have to monitor whether patients will take drugs.

D．They must predict the effects of drugs with an Al system.

2. Why is the area of drug combinations almost unstudied?

A．They require numerous experiments.

B．They are not that important to people.

C．It’s rather expensive to do the research.

D．It’s impossible to keep results accurate.

3. What can we know about Decagon?

A．It can predict influences of combining three drugs.

B．It wouldn’t contribute to people’s deep learning.

C．It can tell the results of combining two drugs.

D．It analyses how proteins interact with each other.

4. Which aspect will researchers work on in the future?

A．Making the system availa ble to more people.

B．Improving some critical functions of the system.

C．Enhancing people’s recognition on its accuracy.

D．Adopting a more friendly attitude toward patients.

2 . Top ‘Traditional Chinese Medicine Museums in China

Hu Qing Yu Pharmacy(药房)( Hu Qing Yu ‘Tang) in Hangzhou

It was initially founded by Hu Xueyan who was a successful businessman and a high-ranking official in the Qing imperial court. Starting business in 1874 during the rule of Emperor Guangxu, Hu Qing Yu Tang is still open today, and known as “King of Medicine”inSouth China. Rather than a pharmacy, it is more like a museum of traditional Chinesemedicine.

Address : Qinghefang Street, Hangzhou，Zhejiang Province Opening hours: 9:00—17:00，every day

Bian Que Memorial Hall in Xi’an

Bian Que was born in the Spring and Autumn Period. Bian Que travelled through the several vassal states, practised medicine and saved many lives. The museum got the namebecause it was transformed from the site of Bian Que’s tomb in 1996. It has several halls, to introduce the development of traditional Chinese medicine and Bian Que stories.

Address :Lintong District, Xi’an City

Opening hours:8:00—18:00, closed on Mon.

Shanghai Museum of Traditional Chinese Medicine (TCM)

lt is made up of TCM History Museum, the Chinese Medicine Specimen(标本), Museum and the Institute ( Shanghai University of Traditional Chinese Medicine)History Museum. Shanghai Museum of TCM is an educational base in Shanghai and an ideal place for sciencetour in Shanghai. Built in 1938, the TCM History Museum is the first of its kind in China.

Opening hours:Tuesday—Sunday，9:00—16;00，closed on Mon.

Address:100 Cailun Lu, Pudong New Zone, near Jinke Lu, (inside Shanghai University of TCM)

Guangdong Museum of ‘Traditional Chinese Medicine

The museum was initially established in 1996, and reopened to the public in 2006 as partof Guangzhou University of TCM. It is made up of the University history museum, TCM history museum with over 5,000 TCM relics, Chinese medical specimen museum, and a55,000-square-metre herbal medicine plantation.

Address : University Town, Panyu District, Guangzhou

Opening Hours:9:00—17:30, Tuesday—Saturday (reserved group activity on Sunday)

1. Which can be visited on Mondays?

A．Bian Que Memorial Hall in Xi’an.

B．Shanghai Museum of Traditional Chinese Medicine.

C．Guang dong Museum of Traditional Chin ese Medicine.

D．Hu Qing Yu Pharmacy (Hu Qing Yu Tang) in Hangzhou.

2. How did Bian Que Memorial Hall get the name?

A．It was originally built by Bian Que.

B．It was named by the local government.

C．lt was changed from the site of Bian Que’s tomb.

D．It has many halls introducing Bian Que’s life stories.

3. What do Shanghai and Guangdong Museum of TCM have in common?

A．Long history.

B．Opening hours.

C．Huge herbal medicine plantation.

D．Close relationship with university.

3 . 听下面一段较长对话，回答以下小题。
1. What is the man’s main problem?

A．Headaches.

B．Sleeplessness.

C．Pressure of work.

2. On which day did the man begin to take the medicine?

A．Monday.

B．Tuesday.

C．Wednesday.

5 . Healthcare professionals in four Canadian provinces can now prescribe (开处方) their patients passes to National Parks thanks to a new program, PaRX, which stresses the health benefits of spending time in nature in helping to manage physical and mental health.

PaRx was founded by the B. C. Parks Foundation in November 2020 and was officially supported by Parks Canada last month. Health professionals who register (注册) with the program can offer their patients a Parks Canada Discovery Pass, making it the country’s “first national nature prescription program”. The Parks Discovery Pass typically costs about $57 per adult per year.

“We’re really asking doctors to prioritize patients who live close to Parks Canada sites so they’ll have more access and can make it part of their everyday lives, and also those for whom the cost of a pass might be a barrier to nature access,” said Melissa Lem, president-elect of the Canadian Association of Physicians for the Environment.

Studies have shown that spending time in nature has a range of health benefits—from lowering blood pressure and improving heart health to reducing stress and anxiety. PaRx recommends that patients spend at least two hours per week in the great outdoors, and at least 20 minutes each time, to get the most benefit.

The program is currently available in the Canadian provinces of British Columbia, Ontario, Saskatchewan, and Manitoba. It will eventually spread to every province.

PaRx also has benefits outside of the national parks, with many gardens offering free admission to visitors who show their prescriptions.

“There’s almost no medical condition that nature doesn’t make better. Rediscovering nature and then realizing how important it is to us has really shown that nature-health connection,” Lem said.

1. What do we know about the Parks Discovery Pass?

A．It is low priced.	B．It is designed for poor families.
C．It is well received.	D．It is owned by registered doctors.

2. What does PaRx plan to do about the program next?

A．Improve its service quality.	B．Carry it out all over the country.
C．Do further research on its effect.	D．Make it available free of charge.

3. What does Melissa Lem stress in the last paragraph?

A．Nature matters a great deal to our health.

B．Not all patients can get treated by doctors.

C．People should learn to change their lifestyle.

D．People should place health above everything.

4. Which of the following can be the best title for the text?

A．Canadians Are Living in Harmony with Nature

B．Canadians Are Trying to Get Away from Hospitals

C．Canadian Doctors Are Prescribing National Park Visits

D．Canadian Doctors Are Leading the Way in Medical Research

6 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

In 1951, a young mother of five named Henrietta Lacks visited The Johns Hopkins Hospital. Upon     1     (care) examination, the famous doctor Howard Jones discovered a large cervical tumor (宫颈肿瘤).

A small number of her cancer cells     2     (collect) during a medical test were sent to Dr. George Gey’s nearby lab. For years, Dr. Gey, a well-known cancer and virus researcher, had been collecting cells from all patients     3     came to The Johns Hopkins Hospital with cervical cancer, regardless of     4     (they) race or socioeconomic position, but each cell    5     (rapid) died in Dr. Gey’s lab. What Dr. Gey soon discovered     6     (be) that Mrs. Lacks’ cells were unlike any of the others he had ever seen: where other cells would die, Mrs. Lacks’ cells doubled every 20 to 24 hours.

Today, these incredible cells, named “HeLa” cells, are used for     7     (study) the effects of drugs and viruses       8     the growth of cancer cells without experimenting on humans. Scientists use “HeLa” cells to test the effects of radiation (辐射), to study the human genome, and to learn more about how viruses work. These cells also played     9     important role in the     10     (develop) of the polio vaccine (小儿麻痹症疫苗).

9 . 听下面一段较长对话，回答以下小题。
1. Why is the woman sick?

A．She worked too hard.

B．She ate something wrong.

C．She was caught in the rain.

2. When will the woman have an exam?

A．This week.

B．Next week.

C．Next month.

3. What will the man do for the woman?

A．Help her prepare the exam.

B．Buy her some medicine.

C．Call the doctor.