“Human influenza viruses can survive and be infectious for several days when they are deposited on banknotes,” according to the latest study by Yves Thomas and his colleages in Switzerland. Scientists put different types of flu virus onto Swiss franc notes and found that they could survive from a few hours to more than a week. The results depended on the type of flu virus.
According to the study, Swiss-banknotes are mostly cotton covered by a nonporous resin(无孔树脂). Banknotes from other countries may be composed of different materials, and this could affect viral transmission. “Whether similar results would be obtained with banknotes from other countries and with different characteristics needs to be studied.” the authors wrote. In an interview with Reuters, Thomas said. “Our studies have convinced us that it is possible to catch the flu from banknotes, but the chances are very, very small and there is no cause for concern among the gneral population,” To be sure, many kinds of frequently touched surfaces could temporarily hide the flu virus. Broadly speaking, scientists consider the risk of transmission in this way to be low. Particularly if hand-washing and other hygiene measures are practiced.
Three things must happen for a flu virus to be transmitted from one person to another via money. First, a person who is infected with the flu virus must sneeze or cough onto the banknote. Next, an uninfected person would need to touch the money while the virus si still present. Finally, that person would need to put his hand in his mouth or pick his nose, says Thomas. The best defense against infection: follow public health guidelines and wash your hands frequently.
49. What does the underlined word “this” refers to in the second paragraph?
A. The time when people stay in a bank.
B. The fact that banknotes may consist of deferent materials.
C. The bank where people draw their money.
D. The country where the banknotes are in circlation.
50. From the last paragraph, we can know that an infected person should ________.
A. pay attention to his personal hygiene B. wash his hands after leaving a bank
C. be monitored at a bank D. not cough at a bank
51. What can we learn from the passage?
A. Any person who touches banknotes will become infected.
B. Different flu viruses stay on the surface of banknotes for different lengths of time.
C. The bank should not allow any infected person to enter.
D. Only banknotes in Switzerland can transmit the flu virus.
52. What is the best title for the passage?
A. Is it Dangerous to Stay in a Bank?
B. How to Avoid Being Infected with the Flu Virus?
C. Can You Catch the Flu from Handling Money?
D. Why Do People Refuse to Use Banknotes in Switzerland?
高三英语阅读理解简单题
“Human influenza viruses can survive and be infectious for several days when they are deposited on banknotes,” according to the latest study by Yves Thomas and his colleages in Switzerland. Scientists put different types of flu virus onto Swiss franc notes and found that they could survive from a few hours to more than a week. The results depended on the type of flu virus.
According to the study, Swiss-banknotes are mostly cotton covered by a nonporous resin(无孔树脂). Banknotes from other countries may be composed of different materials, and this could affect viral transmission. “Whether similar results would be obtained with banknotes from other countries and with different characteristics needs to be studied.” the authors wrote. In an interview with Reuters, Thomas said. “Our studies have convinced us that it is possible to catch the flu from banknotes, but the chances are very, very small and there is no cause for concern among the gneral population,” To be sure, many kinds of frequently touched surfaces could temporarily hide the flu virus. Broadly speaking, scientists consider the risk of transmission in this way to be low. Particularly if hand-washing and other hygiene measures are practiced.
Three things must happen for a flu virus to be transmitted from one person to another via money. First, a person who is infected with the flu virus must sneeze or cough onto the banknote. Next, an uninfected person would need to touch the money while the virus si still present. Finally, that person would need to put his hand in his mouth or pick his nose, says Thomas. The best defense against infection: follow public health guidelines and wash your hands frequently.
49. What does the underlined word “this” refers to in the second paragraph?
A. The time when people stay in a bank.
B. The fact that banknotes may consist of deferent materials.
C. The bank where people draw their money.
D. The country where the banknotes are in circlation.
50. From the last paragraph, we can know that an infected person should ________.
A. pay attention to his personal hygiene B. wash his hands after leaving a bank
C. be monitored at a bank D. not cough at a bank
51. What can we learn from the passage?
A. Any person who touches banknotes will become infected.
B. Different flu viruses stay on the surface of banknotes for different lengths of time.
C. The bank should not allow any infected person to enter.
D. Only banknotes in Switzerland can transmit the flu virus.
52. What is the best title for the passage?
A. Is it Dangerous to Stay in a Bank?
B. How to Avoid Being Infected with the Flu Virus?
C. Can You Catch the Flu from Handling Money?
D. Why Do People Refuse to Use Banknotes in Switzerland?
高三英语阅读理解简单题查看答案及解析
___________ many different viruses, wildlife can potentially infect human beings and should be banned for trade.
A.To carry. B.Carried. C.Having been carried D.Carrying.
高三英语单项填空中等难度题查看答案及解析
Alongside air and water, food is a necessity for human beings to survive and thrive. But it’s a lot more than that. As Mariette Dichristina of Scientific American wrote: “The most intimate (亲密的) relationship we will ever have is not with any fellow human being. Instead, it is between our bodies and our food.”
Nowadays, for most people in the world’s wealthiest countries, food is a hobby, an enthusiasm, and even something fashionable.
Turn on the TV in the US, UK or France, and you’ll find at least one channel feeding this popular obsession.
And most of us know at least one person who thinks of themselves as a “foodie”. It’s almost impossible nowadays to check our social media apps without at least two or three photos of delicious meals appearing on our screen.
But behind the fancy recipes and social media bragging (夸耀), many of us forget how much we take food for granted. This is why World Food Day is held each year.
Take Kenya for example. This east African nation has been suffering terrible droughts. The result is that people are beginning to starve. Children in particular are suffering, with some of them even dying.
This may seem shocking to know, especially as many cultures outside of Africa think of food in a completely different way. But even in the UK, families on low incomes are forced to use food banks—European organizations that hand out donated food to those who can’t afford to pay for it themselves.
So what can we do on World Food Day? One good way to spend it would be to feel humble and appreciate what we have. After all, food is essential for survival, but not everyone is as lucky as we are when it comes to dinner time.
1.According to Mariette Dichristina, what has the closest relationship with us?
A.Air. B.Water.
C.Food. D.Human beings.
2.What does the underlined word “foodie” in Paragraph 4 probably mean?
A.Delicious food. B.A person fond of food.
C.A social media app. D.A photo of delicious meals.
3.Who can get help from food banks?
A.Poor people in the UK. B.Poor people in Africa.
C.Starving children in Kenya. D.People in the drought-stricken.
4.What’s the best title for the text?
A.Treat Food as a Hobby B.Time to Appreciate Food
C.Food Shortage in Some Countries D.How to Spend World Food Day
高三英语阅读理解中等难度题查看答案及解析
Human life is regarded as part of nature and, as such, the only way for us to survive is to live_________nature.
A. in view of B. in need of
C. in touch with D. in harmony with
高三英语单项填空中等难度题查看答案及解析
Human life is regarded as part of nature and, as such, the only way for us to survive is to live_________nature.
A. in view of B. in need of C.in touch with D. in harmony with
高三英语单项填空中等难度题查看答案及解析
Influenza is an infection caused by flu viruses travelling through the air and entering the body through the nose or mouth. From October 2018 to early May 2019, up to 61,200 people died due to flu complications, while up to 647,000 people were hospitalized, according to the Centers for Disease Control and Prevention. Despite similar symptoms, a cold is milder than the flu while flu symptoms develop more suddenly and severely and can impact your body above and below the neck. 1.
Several factors can lead to Influenza. 2. You can catch the flu, breathing in these droplets, or touching objects such as doorknobs or keyboards that are contaminated with the virus and then touching your nose, or mouth. People under 4, or above 65 or with a weakened immune system are at greater risk of catching the flu.
Treatment without delay plays a dominant role. If you promptly see your doctor upon noticing symptoms, he or she may give you an antiviral drug, oseltamivir. 3.“The best way to treat the flu is to rest, drink fluids and use any other remedies that best relieve your symptoms such as pain reliever for headaches and achy muscles.” says a professor of infectious diseases at Northwestern Memorial Hospital.
Prevention is better than defense.4. Experts widely agree that the single best way is to get the vaccine (疫苗) each year, which is appropriate for anyone 6 months and older. 5. Moreover, practicing good hygiene can prevent flu germs from spreading. Highly recommended are washing your hands, coughing or sneezing into a tissue, avoiding touching your nose and mouth, cleaning surfaces and objects like keyboards and telephones and avoiding crowded areas.
A.Approaches to flu vary from expert to expert.
B.You can escape catching influenza with some common-sense health practices.
C.When someone with the flu coughs or sneezes, droplets carrying the virus enter the air.
D.These can include fever, achy muscles, sore throat, cough, headache, chills, fatigue or vomiting.
E.The flu shot protects against the most common three or four flu viruses research indicates that year.
F.If taken within two days, the medicine can lessen symptoms and shorten the length of time you are sick by about a day.
G.To determine if you have the flu or a cold, your doctor will do a physical exam, ask about your symptoms, and possibly do a lab test.
高三英语七选五中等难度题查看答案及解析
Asymptomatic infections(无症状感染)of the COVID-19 can be hard to track and chances of such virus carriers spreading the virus are simply equal. 1. Therefore, to protect yourself from those potential infections, you need some basic protective measures to take care of your health and the others' as well.
Wash your hands frequently.
Cleaning your hands regularly and thoroughly with an alcohol-based hand rub or washing them will soap and water can help kill viruses that may be on your hands.
Maintain social distancing.
Maintain at least I meter (3 feet) distance between yourself and anyone who is coughing or sneezing. 2. Being loo close, you expose yourself to the risk of breathing in the droplets, including the COVID-19 virus.
3.
Hands touch many surfaces and can pick up viruses. Once contaminated(弄脏), hands cam transfer the virus to your eyes, nose or mouth. 4.
Seek medical care early if you have fever, cough and difficulty breathing.
If you have a fever, cough and difficulty breathing, seek medical attention and call in advance. Follow the directions of your local health authority who may have the most up to date information on the situation in your area. Calling in advance will allow your health care provider to quickly direct you to the right health facility. 5.
A.This will also protect you and help prevent spread of viruses and other infections.
B.Avoid touching eyes, nose and mouth.
C.Thus, the goal of preventing the possible spread of COVID-19 can be easily achieved.
D.From there, the virus can enter your body and can make you sick.
E.Cover your mouth and nose with your bent elbow or tissue when you cough or sneeze.
F.Many people who are infected experience mild illness or no symptoms at all, but it can be more severe for others.
G.When people cough or sneeze they spray small liquid droplets from their noses or mouths which may contain virus.
高三英语七选五中等难度题查看答案及解析
Culture helps human societies survive in changing natural environment.For example, the end of the last Ice Age, beginning about 15,000 years ago, brought a big challenge to which humans had to adapt.Before this time, large parts of the northern hemisphere were covered in great sheets of ice that contained much of the earth' s water.In North America, large animals that wandered the vast tundra (冰原) provided people with food and materials for clothing and simple shelters.When the earth became warm, large Ice Age animals disappeared, and many land areas were covered by rising sea levels from melting ice.But people survived, they developed new technologies and learned how to survive on new plant and animal species. Finally some people settled into permanent villages, durable houses and farms.
Cultural adaptation has made humans one of the most successful species on the planet. Through history, major developments in technology, medicine, and nutrition have allowed people to reproduce and survive in ever-increasing numbers.The global population has risen from 8 million during the Ice Age to about 6 billion today.
However, the successes of culture adaptation can also create problems in the long run.Over the last 200 years, people have begun to use large quantities of natural resources and energy and to produce a great amount of material and chemical wastes.The global population now consumes some important natural resources—such as petroleum, wood, and minerals—faster than nature can produce them.Many scientists believe that in the process of burning fuels and producing wastes, people may be changing the global climate in unpredictable and possibly harmful ways.Thus, the adaptive success of the present-day global culture of production and trade may be temporary.
1.What is the first paragraph mainly talking about?
A.How the human beings survived in the Ice Age. |
B.What the situation was like during the Ice Age. |
C.What caused the Ice Age to come to an end. |
D.Why the Ice Age was very important. |
2.To deal with the problems, human beings should ______according to the passage.
A.stop developing any longer |
B.reduce the overuse of natural resources |
C.stop the global warming and using natural resources |
D.save more animals in case they all die out |
3.Which of the following is the problem caused by cultural adaptation according to the passage?
A.A very developed culture came into being. |
B.New technologies have been developed. |
C.Natural resources have been used up. |
D.Human activities have done damage to the balance of nature. |
4.Which of the following can be the best tide of the passage?
A.Natural Environment Should Be Protected. |
B.The Success of Cultural Adaptation Is Not Permanent. |
C.The Global Population Is Increasing Since Ice Age. |
D.Human Beings Are Capable of Surviving on Earth. |
高三英语阅读理解中等难度题查看答案及解析
Its well known that our human memory can fail us. People can be forgetful, and they can sometimes also remember things incorrectly, with damaging consequences in the classroom, courtroom, and other areas of life. Now, researchers show for the first time that bumblebees(大黄蜂) can be unreliable witnesses too.
Bumblebees are rather clever animals, which explains why Chittka has been studying learning and memory in the insects for the last 20 years.
Most times when people have studied memory in animals, errors in performance have been taken to mean that the animals failed to learn the task or perhaps learned it and then forgot. But what if animals can experience a more interesting type of memory failure?
To find out, Chittka first trained bumblebees to expect a reward when visiting a yellow artificial flower followed by one with black-and-white rings. During subsequent tests, bees were given a choice between three types of flowers. Two were the types they’d seen in the training before. The third had yellow-and-white rings, representing a mixed-up version of the other two. Minutes after the training, the bees showed a clear preference for the flower that recently rewarded them.
One or three days later, however, something very different happened when the bumblebees’ memory was put to the test. At first, the bees showed the same preference displayed in the earlier tests, but as the time went on, they began selecting the flower with yellow rings, even though they’d never actually seen that one in training before.
Chittka says that insects make similar errors in the conjunction (结合) of long-term memories as humans do. The ability to extract (提取) common features between different events in the environment might come at the expense of remembering every detail correctly. In bees, with their limited brain capacity (容量), the pressure to store main features of several objects rather than each individual object might be much greater, compared with humans.
1.Which of the following might be the best title of the passage?
A. Human memory can fail sometimes.
B. Bumblebees make false memories too.
C. Humans are not as clever as bumblebees.
D. Bumblebees have extraordinary memory.
2.Which of the following is the closest in meaning to the underlined word subsequent?
A. scientific B. accurate
C. following D. exceptional
3.What does the test mentioned in Paragraph 4 tell us?
A. Short-term memories serve the bees well.
B. The yellow artificial flower appeals to the bees.
C. Bumblebees like the flowers with yellow-and-white rings.
D. Bees have remarkable abilities to distinguish colors.
4. We can infer from the passage that ______.
A. Chittka thinks that bumblebees failed to remember the color of the flowers
B. Researchers have learned that bumblebees are unreliable animals
C. There exist no similarities between the memory errors in humans and bees.
D. It is less challenging for humans than bees to store main features of several objects.
高三英语阅读理解困难题查看答案及解析
It’s well known that our human memory can fail us. People can be forgetful, and they can sometimes also “remember” things incorrectly, with damaging consequences in the classroom, courtroom, and other areas of life. Now, researchers show for the first time that bumblebees(大黄蜂) can be unreliable witnesses too.
Bumblebees are rather clever animals, which explains why Chittka has been studying learning and memory in the insects for the last 20 years.
Most times when people have studied memory in animals, errors in performance have been taken to mean that the animals failed to learn the task or perhaps learned it and then forgot. But what if animals can experience a more interesting type of memory failure?
To find out, Chittka first trained bumblebees to expect a reward when visiting a yellow artificial flower followed by one with black-and-white rings. During subsequent tests, bees were given a choice between three types of flowers. Two were the types they’d seen in the training before. The third had yellow-and-white rings, representing a mixed-up version of the other two. Minutes after the training, the bees showed a clear preference for the flower that recently rewarded them.
One or three days later, however, something very different happened when the bumblebees’ memory was put to the test. At first, the bees showed the same preference displayed in the earlier tests, but as the time went on, they began selecting the flower with yellow rings, even though they’d never actually seen that one in training before.
Chittka says that insects make similar errors in the conjunction (结合) of long-term memories as humans do. The ability to extract (提取) common features between different events in the environment might come at the expense of remembering every detail correctly. In bees, with their limited brain capacity (容量), the pressure to store main features of several objects rather than each individual object might be much greater, compared with humans.
1.Which of the following might be the best title of the passage?
A. Human memory can fail sometimes.
B. Bumblebees make false memories too.
C. Humans are not as clever as bumblebees.
D. Bumblebees have extraordinary memory.
2.Which of the following is the closest in meaning to the underlined word “subsequent”?
A. scientific B. accurate
C. following D. exceptional
3.According to the passage, which of the following statements is NOT true?
A. Memory failure influences students’ study effects.
B. Bumblebees’ memory is complicated and worth studying.
C. The bees couldn’t make out which flower had rewarded them days later.
D. Bumblebees are stupid insects with limited brain capacity.
4. What does the test mentioned in Paragraph 4 tell us?
A. Short-term memories serve the bees well.
B. The yellow artificial flower appeals to the bees.
C. Bumblebees like the flowers with yellow-and-white rings.
D. Bees have remarkable abilities to distinguish colors.
5.We can infer from the passage that ______.
A. Chittka thinks that bumblebees failed to remember the color of the flowers
B. Researchers have learned that bumblebees are unreliable animals
C. There exist no similarities between the memory errors in humans and bees.
D. It is less challenging for humans than bees to store main features of several objects.
高三英语阅读理解中等难度题查看答案及解析