Asthma (哮喘) and allergy (过敏) attacks have increased in the United States, despite the fact that our outdoor air quality has improved. Some researchers think these problems have increased because kids are spending too much time indoors.
When outdoors, we are exposed to different kinds of pollen (花粉) and dust. But when indoors, we are also exposed to allergens (过敏源) . Allergens cause allergies and most people know that allergens can make you sneeze, have runny eyes, and other cold-like symptoms (症状). But allergens can also lead to asthma attacks, which are more serious. Asthma symptoms include coughing, shortness of breath, especially during exercise and tightness in the chest. Allergic asthma affects about three million children (8 to 12 percent of all children) and seven million adults in the United States each year!
You can get rid of the allergens from your environment! Most children with asthma are allergic to something, so staying away from the allergen should help control the asthma. If you have asthma or allergies, stay away from animals, remove the teddy bears, rugs and curtains in rooms that you spend a lot of time in. Removal of dusty things can help you breathe more easily. If it's trees and pollen that affect you, air conditioning and air filters(空气过滤器) should help.
And research helps, too! Children whose parents, brothers or sisters have asthma are more likely to develop it themselves. But even though our genes do play some part in whether or not we'll have asthma, researchers hope to make the most progress in fighting the disease by looking at the environmental aspect (方面) of asthma. The hope is that if kids are exposed to fewer allergens early in life, they'll be less likely to develop allergic responses. Asthma research is performed at the National Institute of Environmental Health Sciences (NIEHS) and at the National Institute of Allergy and Infectious Diseases(NIAID).
1.What makes asthma and allergy attacks increase in the United States?
A.Poor outdoor air quality. B.Not enough outdoor time.
C.Too much pollen and dust. D.The decrease of people's physical condition.
2.What can we know in the second paragraph?
A.Allergens in home environment can affect our health.
B.The number of allergens in the average home has decreased.
C.Asthma symptoms are the same as those of the common cold.
D.Allergens from outdoors are more dangerous than those in our homes.
3.What do we know from the passage?
A.Allergies are more serious than asthma.
B.People do not get asthma when they are outdoors.
C.We should stay away from allergens to help control asthma.
D.Children whose parents have asthma are certain to develop it.
4.Where can you most probably find this passage?
A.In a storybook. B.In a news report.
C.In a travel guide. D.In a health magazine.
高一英语阅读选择中等难度题
Asthma (哮喘) and allergy (过敏) attacks have increased in the United States, despite the fact that our outdoor air quality has improved. Some researchers think these problems have increased because kids are spending too much time indoors.
When outdoors, we are exposed to different kinds of pollen (花粉) and dust. But when indoors, we are also exposed to allergens (过敏源) . Allergens cause allergies and most people know that allergens can make you sneeze, have runny eyes, and other cold-like symptoms (症状). But allergens can also lead to asthma attacks, which are more serious. Asthma symptoms include coughing, shortness of breath, especially during exercise and tightness in the chest. Allergic asthma affects about three million children (8 to 12 percent of all children) and seven million adults in the United States each year!
You can get rid of the allergens from your environment! Most children with asthma are allergic to something, so staying away from the allergen should help control the asthma. If you have asthma or allergies, stay away from animals, remove the teddy bears, rugs and curtains in rooms that you spend a lot of time in. Removal of dusty things can help you breathe more easily. If it's trees and pollen that affect you, air conditioning and air filters(空气过滤器) should help.
And research helps, too! Children whose parents, brothers or sisters have asthma are more likely to develop it themselves. But even though our genes do play some part in whether or not we'll have asthma, researchers hope to make the most progress in fighting the disease by looking at the environmental aspect (方面) of asthma. The hope is that if kids are exposed to fewer allergens early in life, they'll be less likely to develop allergic responses. Asthma research is performed at the National Institute of Environmental Health Sciences (NIEHS) and at the National Institute of Allergy and Infectious Diseases(NIAID).
1.What makes asthma and allergy attacks increase in the United States?
A.Poor outdoor air quality. B.Not enough outdoor time.
C.Too much pollen and dust. D.The decrease of people's physical condition.
2.What can we know in the second paragraph?
A.Allergens in home environment can affect our health.
B.The number of allergens in the average home has decreased.
C.Asthma symptoms are the same as those of the common cold.
D.Allergens from outdoors are more dangerous than those in our homes.
3.What do we know from the passage?
A.Allergies are more serious than asthma.
B.People do not get asthma when they are outdoors.
C.We should stay away from allergens to help control asthma.
D.Children whose parents have asthma are certain to develop it.
4.Where can you most probably find this passage?
A.In a storybook. B.In a news report.
C.In a travel guide. D.In a health magazine.
高一英语阅读选择中等难度题查看答案及解析
“Children who eat three or more hamburgers a week are more likely to suffer from asthma (哮喘),” researchers say. However, they say that the risk may not be caused by the meat-rich diet itself, but by a lack of fresh fruit and vegetables.
The study looked into 50,000 children from 20 countries. Parents were asked about their children’s eating habits and whether they had ever suffered from asthma. The effects of their diet seemed to be different depending on where they lived. Fruit and vegetables are more helpful in less rich parts of the world, while eating lots of fish was more helpful in richer countries. Eating at least three hamburgers a week was linked to a greater risk of asthma, but only in wealthier countries.
Dr. Gabriele Nagel said different things may cause asthma in different parts of the world. “This gives us more understanding of how asthma affects different people, and its effects in developing as well as developed countries,” she said.
High levels of unhealthy fat in hamburgers could increase the risk of asthma. However, the researchers said children who ate several hamburgers a week might have other unhealthy lifestyle habits as well.
Researchers said the study helped us understand how asthma and diets are connected. “Previous (先前的) studies have shown that a diet rich in fruit and vegetables can help to reduce a child’s risk of developing asthma symptoms (症状),” Dr. Elaine Vickers said. “Our advice to parents is to make sure that children have a healthy diet and also get plenty of exercise.”
1.What can we know about asthma from paragraph 1?
A.The danger of it is common among children. B.Children who eat hamburgers suffer from it.
C.Lack of fruit and vegetables may cause it. D.The meat-rich diets can make it much worse.
2.What did parents do in the study?
A.They provided information about children’s eating habits.
B.They helped look into children from different countries.
C.They compared the effects of children’s diets right away.
D.They changed their children’s eating habits on purpose.
3.What do the researchers say about the study?
A.It shows fruit and vegetables stop children from developing asthma.
B.It is based on previous studies but the results are quite different.
C.It is helpful for them to know the relation between asthma and diets.
D.It offers many suggestions to parents and children on a healthy diet.
4.What is the best title for the text?
A.The Risk of Asthma Is High in Wealthier Countries
B.Unhealthy Eating Habits May Lead to Asthma
C.Eating Hamburgers Increases the Risk of Asthma
D.Hamburgers Are Really Bad for People’s Health
高一英语阅读选择中等难度题查看答案及解析
Can storms in Africa cause asthma(哮喘) in the Caribbean(加勒比)? Islanders point to the desert insects that land on beaches after a 5,000-kilometer flight across the Atlantic. If they can use winds to get from one continent to another, so can clouds of dust that carry disease.
Scientists think that as Africa becomes drier, dust from expanding deserts is being blown away into Caribbean islands. A study in Barbados shows that asthma has increased 17 times since Africa’s drought(干旱) began in 1973.
Other forms of life are suffering, too. Among them are the Caribbean’s famous coral reefs( 珊瑚礁), which began dying in large numbers in the 1900s. Eugene Shinn of the U.S. Geiological Sudrvey(USGS) in Florida went to the virgin Islands to study the reefs. The tests he and his colleagues carried out showed that the coral was dying of disease caused by Africa microbes(微生物) from across the ocean.
William Sprigg of the University of Arizona is studying the problem as part of a major UN project. He says that dust is causing problems in the U.S., too.
“We are just beginning to collect the evidence of airborne(空气传播的) dust influences on human health,” he told The Washington Post.
1.Which of the following can be the best title for this passage?
| A．Dangerous Dust | B．Dangerous Disease |
| C．Changing Weather | D．Developing Technology |
2. Where does the dust talked about in this passage come from?
| A．America. | B．Africa. | C．The Atlantic. | D．The Pacific. |
3. The increase of asthma in the Caribean is probably related to _____ according to scientists.
| A．desert insects | B．strong winds | C．airborne dust | D．dry weather |
4.Which of the following is NOT true about the Caribbean coral reefs?
| A．They are in Florida. |
| B．They used to be very beautiful. |
| C．They began dying in the past decades. |
| D．The African microbes have bad effect on them. |
5. Which of the following is TRUE about William Sprigg?
| A．He is a member of UN. |
| B．He thinks African dust also affects the US. |
| C．He has collected enough evidence about dust influences. |
| D．He is a reporter from The Washington Post. |
高一英语阅读理解简单题查看答案及解析
World Earth Day is on April 22. It's a day when people around the world work to help the planet, including kids. Here are what four kids have done for the planet.
Speaking Out
Jaysa Hunter-Mellers, 14, spoke at the City Hall to ask leaders to shut the last coal power station nearby which brought her an asthma（哮喘）attack. She didn't think that people would listen to her, a kid. But the coal power station later said it would close. Jaysa learned to speak to her local government at a young age and now she wants to teach others to speak up too.
Helping Butterflies
When Aiden Wang was 6, he learned that local butterflies were in trouble because they needed a kind of grass, milkweed, to survive. But milkweed was disappearing. So Aiden started growing milkweed in his house, on which the butterflies lay eggs. Aiden is now 13 and he cares for eggs and lets them go when they turn into butterflies.
Doing Good for Gorillas
When Addy Barrett was in the first grade, she learnt that the mountain gorillas were in danger. She wanted to protect them and set up a program called Gorilla Heroes. So far, Gorilla Heroes has raised more than $11, 000 to help mountain gorillas. Addy says, “The feeling of having a fine effect on the world is like no other. It feels so good to know that I am making a difference. ”
Educating the Youth
In the fourth grade, Jeremy Clark and Charlie Abrams saw a picture of the Statue of Liberty（自由女神像）up to her waist in water. It was meant to show what the statue would look like if all the ice in the world is turned into water. In 2019, they started a team called Affected Generation to urge young people to become climate activists. The two also want schools to teach about climate change.
1.Why did Jaysa call on the government to close the coal power station？
A.It made too much noise. B.It caused health problems to her.
C.She wanted to set an example for others. D.She wanted to warn government leaders.
2.How does Aiden Wang help butterflies？
A.By collecting their eggs. B.By feeding them on milk.
C.By turning eggs into butterflies. D.By planting grass they lay eggs on.
3.Who set up a team to protect the environment？
A.Aiden Wang. B.Addy Barrett.
C.Jaysa Hunter-Mellers. D.Jeremy Clark and Charlie Abrams.
高一英语阅读选择简单题查看答案及解析
Is It a Healthy Interest?
The Guinness Book of World Records describes Ranulph Fiennes as the world’s greatest living explorer. His journeys include the first polar circumnavigation (极地环行) and the first unsupported crossing of the Antarctic continent on foot. So when he suffered a heart attack, it came as something of a surprise.
Exercise is highly beneficial as it reduces both the pulse (脉搏) rate and the blood pressure so reducing stress on the heart as it brings blood round the body. It also helps to keep the artery (动脉) walls more elastic (有弹性的).
But can you push yourself too much? On the subject of exercise, it is good to take several parts of “moderate” exercise a week，which is a little more than quick walking. “We need to be careful when we’re doing extreme sports,” says expert Len Almond. “Extreme stress can make almost impossible demands on the body’s ability to recover. The stress of extreme sports forces biochemical changes in the body, and the physical response to that kind of activity will be too extreme.”
We all know how the Olympics began. The man who ran 26 miles from the town of Marathon to Athens with news of a victory died as soon as he arrived，and the cause of his sudden death might be the heart attack. Further research was done by scientists. They studied cyclists (自行车运动员) on a race that covers 230km with a height change of 5,500m. They were interested in one particular enzyme (酶), high concentrations of which are found in those who have suffered a heart attack. The scientists found that levels of this chemical increased in most of the cyclists who completed the race. The largest increases were seen in the fastest cyclists who had trained the hardest.
Most of us will never put our bodies to such extreme sports. But if, when you hear about someone like Fiennes，you ask whether exercise is worth it. I advise you to consider your own condition. Personally, I agree with the saying: “Run not to add years to your life but to add life to your years.”
1.According to the passage, taking exercise can_______ .
A.speed up the heart rate B.increase stress on the heart
C.reduce the blood pressure D.keep the artery walls straight
2.What does expert Len Almond suggest?
A.Our bodies can easily deal with physical stress.
B.Playing extreme sports is harmful to the human body.
C.We need a long period of recovery after extreme sports.
D.There is more to learn about the effect of physical stress.
3.Why is the research on the cyclists mentioned in Paragraph 4?
A.To suggest a different area of research.
B.To support the activity of taking part in sports.
C.To explain the effect of a height change on cyclists.
D.To prove that extreme sports may cause heart attacks.
4.The author believes that exercise_______.
A.helps you have a regular life B.adds years to your life
C.should be done in moderation D.will be worth the effort
高一英语阅读选择中等难度题查看答案及解析
We already know that a lack of sleep will actually prevent your brain from being able to make new memories. You end up feeling as though you’re amnesiac.
A lack of sleep will lead to an increased development of a protein in the brain connected with Alzheimer’s disease because it is during deep sleep at night that a system within the brain starts to wash away this protein. So if you’re not getting enough sleep each and every night, more of that Alzheimer’s-related protein will build up. The more protein that builds up, the greater your risk of developing Alzheimer will be in later life.
What are the effects of the lack of sleep on the body? We know that a lack of sleep impacts your immune system(免疫系统).After just one night of four to five hours of sleep, there is a 70%reduction in immune cells called natural killer cells. And that’s the reason that short sleep predicts your risk for developing many forms of cancer.
In fact, the link between a lack of sleep and cancer is now so strong that recently the World Health Organization decided to classify any form of nighttime shift work as a probable cause of cancer. It is during deep sleep at night that your heart rate drops, your blood pressure goes down. If you’re not getting enough sleep, your blood pressure rises. If you’re getting six hours of sleep or less, you’ll have a 200%increased risk of having a deadly heart attack or stroke in your lifetime.
There is a global experiment that is performed on 1.6 billion people twice a year and it’s called daylight savings time. And we know that in the spring, when we lose one hour of sleep, we see a 24%increase in heart attacks the following day.
Another question, perhaps, is what is the recycle rate of a human being? How long can we actually last without sleep before we start to see worsening in your brain function? And the answer seems to be about 16 hours of wakefulness. Once you get past 16 hours of being awake, that’s when we start to see mental and physical damages in the body. We know that after you’ve been awake for 19 or 20 hours, your mental capacity(心智能力)is so damaged that you would be as slow as someone who was drunk. So if you were to ask me what is the recycle rate of a human being, it does seem to be about 16 hours and we need about eight hours of sleep to repair the damage of wakefulness.
1.The underlined word “amnesiac” in Paragraph 1 probably means
A.sleepy B.tolerant C.relieved D.forgetful
2.According to the article, we can infer that_
A.the more you sleep, the more protein there will be
B.you’re more likely to suffer heart attacks in the spring
C.deep sleep at night protects you from a harmful protein
D.you’ll develop many forms of cancer due to short sleep
3.When you’re awake over 16 hours, .
A.your brain won’t function in a proper way B.your brain needs at least 8 hours to recover
C.you must have drunk large amounts of wine D.you walk as slowly as the physically disabled
4.What is the best title for the passage?
A.Sleeping sickness kills B.Enough sleep counts
C.Less sleep causes cancer D.Sleep is necessary for man
高一英语阅读选择中等难度题查看答案及解析
Four Healthy Experience Gifts Wellness Fans Will Love
Healthy classes
Deciding to eat healthier is usually a top New Year’s resolution for most people. You can help a loved one by treating them to a healthy cooking class to learn new tips and tricks that make cooking a healthier, more enjoyable experience. When people sign up for a cooking class, they are going to have a better mental attitude and mood. Sur La Table offers gift certificates (证书) to a variety of cooking classes nationwide that will appeal to just about any taste.
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Salt cave spa day
Sure, you could gift someone a day at any spa and they’ll enjoy it. The goal is to breathe in the refined (提炼的) air, which may help improve breathing system problems, from asthma, colds, to allergies, according to the Salt Therapy Association (which also has a list of locations nationwide). While the science on salt caves is limited, consider it another way to reduce stress and find more balance.
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Year-long pass to parks
Research has shown that spending time outside can help improve your memory, and lessen feelings of sadness. And research on people without sadness has shown similarly promising results of nature’s effect on one’s mood. For those who love a good nature walk or hike, consider gifting a year-long pass to parks. This experience gift gives them admission (进入许可) to more than 2,000 sites.
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A night in
Sometimes all we need is permission to do nothing, even if that’s just at home. The Lather Wellness Retreat offers the chance to relax without having to go anywhere. When we give ourselves permission and the gift of wonderful activities that will help us to reduce our stress, we sleep better and our immune systems (免疫系统) are more balanced.
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1.What can we do with the gift “Healthy” classes”?
A.Relax our body by cooking. B.Learn to prepare better meals.
C.visit different cooking schools for free. D.Make New Year’s resolutions for others.
2.Who might prefer the gift of a year-long pass to parks?
A.Those who want to go fishing. B.Those who want to have a cave spa.
C.Those who want to sleep better. D.Those who want to enjoy outdoor activities.
3.Which of the following can let you feel relaxed at home?
A.A night in. B.Healthy classes.
C.Salt cave spa day. D.Year-long pass to parks.
高一英语阅读选择中等难度题查看答案及解析
Bats (Firefly Books, 2011)by Phil Richardson helps to show readers the truth about bats. While bats get a bad name for their connection to mysterious vampires (吸血鬼）and their nightly habits, Richardson shines light onto the species and shows that bats are amazing and complex creatures for various reasons. The following is information about bat protection.
Bats are under threat in many areas of the world. Some have gone down to such a level that the remaining numbers may not be enough to keep the species. Threats to bat populations matter not just because bats are attractive creatures in their own right.Our increasing familiarity with the term biodiversity from television, newspapers, magazines and other media reflects the importance biologists place on this kind of protection.
The easiest way to appreciate what is included is to recall the idea of food chains and webs from biology lessons at school. It all starts with the producers,the plants that produce the food in their leaves by photosynthesis (光合作用）. Animals such as caterpillars then join the chain and eat the leaves, other animals such as birds eat the caterpillars, and so on up the chain.If a species dies out, then there is a break in the chain, and predators (捕食者）that relied on that species could also die or grow weaker as there is less food available.
There is another important point,a single insect-eating bat may eat hundreds of insects a night. So bats help to keep a balance in the natural world.Besides, they are a great help to humans,as farmland, gardens and house wooden structures all suffer attacks from injurious insects and bats are useful in keeping down their numbers.
1.What is the general impression people have of bats?
A.Bats are not related to mysterious vampires.
B.Bats are often active during the day.
C.Bats are not good creatures.
D.Bats are helpful to humans.
2.What does the underlined word “caterpillars” in paragraph 3 probably mean?
A.Animals that feed on birds. B.Animals that produce the food.
C.Animals that are under threat. D.Animals that feed on leaves.
3.What does paragraph 4 mainly tell us?
A.Bats only eat insects. B.Bats can help balance nature.
C.Bats are helpless to humans. D.Bats can reduce the number of people.
4.What is a suitable title for the text?
A.Bat protection needs attention. B.Bat population is increasing.
C.Bats are insect-eating animals. D.Bats are short of food.
高一英语阅读选择中等难度题查看答案及解析
Today, more and more Chinese consumers change the way they purchase products and prefer to make payments via smart devices as mobile apps have made purchases much easier, but security concerns remain, a PwC report said.
Nearly one-third of respondents in China chose mobile payment when shopping last year, doubling from 16 percent in 2014, according to the accounting firm's global retail (零售) survey. The figure appeared much higher than the world's average of 12 percent.
The popularity comes as a result of rapid growth of mobile payment options and an expanding mobile network, the report said.
Chinese have started to enjoy a wide range of mobile payment options that allow faster, securer payment through near field communication and QR code. Moreover, more advances have been seen in biometric technology, such as the use of fingerprints and facial recognition.
“As competition becomes fierce, mobile payment players are trying to attract users through the continuous development of technology and business modes,” said Yuqing Guo, PwC China's financial service consulting partner.
But security problems are ring. Data security was still seen as a huge problem, with leak of user information, payment fad (诈骗) and virus attacks appearing as the tree biggest challenges for the rapid growing field. The PwC report said over 60 percent of respondents were worried that their personal information was not safe.
Chinese government has introduced a series of policies to strengthen strict supervision (监督). In the meantime, people should avoid scanning QR codes from unknown sources and raise awareness of fraudulence.
The field still has vast space for growth due to technological advances and the rise of the tech-savvy younger generation, the report said, predicting China's retail and consumer product industry will post an annual growth rate of 7.5 percent between 2016 and 2020.
1.0n the basis of this article, more Chinese people favor mobile payment because _______.
A.it ensures the absolute security of purchases
B.it helps them purchase products more conveniently
C.it guarantees faster delivery than cash payment
D.it provides them with various options of items
2.To keep their personal information safe, consumers are advised _______.
A.to check the sources before scanning QR codes
B.to cut down the chance of using mobile apps
C.to increase supervision over mobile payment
D.to learn more knowledge about virus attacks
3.According to the passage, we can draw a conclusion that _______.
A.China's financial service will face big challenges
B.People will abandon mobile payment because of security problems
C.Mobile payment will enjoy a wide space for development
D.Chinese government will introduce a series of policies to ban payment
4.In which section of a newspaper does the passage probably appear?
A.Industries. B.Education.
C.Companies. D.Technology.
高一英语阅读选择中等难度题查看答案及解析
Life has gone mostly online for many people around the world. With more people going online during the COVID-19 pandemic, global Internet traffic has become a big problem. Between January and late March. many major cities experienced an increase in Internet traffic.
Video meetings, online classrooms and stay-at-home entertainment have become a daily routine. This increase in traffic is testing the Internet' s strength. In March. major phone networks in the UK experienced mass outages(断供). People were not able to take calls, receive texts or use mobile data.
In the US, major telecommunications companies like AT&T said traffic was up 21 percent month over month. Video streaming services like You Tube, Netflix and Facebook have cut their picture qualities and download speeds. This is being done to reduce network traffic jams.
China has seen an Internet traffic increase of around 50 percent compared to the end of 2019. The country's network speeds went down sharply in early February. However, they returned to normal soon afterwards and have been working well. This is due to China’s work in building network infrastructure(基础设施), especially 5G technology. By the end of February, 164,000 5G base stations had been built nationwide. This has given Chinese networks the power to handle increased traffic.
“If there were no such development in the Internet network field. people could hardly enjoy such a colorful life at home. Online working and teaching could never be realized so smoothly," said Wen Kun, an official with the Ministry of Industry and Information Technology.
1.What happened to the Internet due to COVID-19?
A.Internet traffic was jammed. B.Internet access was cut off.
C.Internet service was ignored. D.Internet community was ruined.
2.Why did some US companies cut download speeds?
A.To increase Internet strength. B.To improve picture qualities.
C.To avoid Internet breakdown. D.To reduce the number of users.
3.Compared with other countries. China's Internet system_________.
A.suffered bigger losses B.recovered faster
C.cost less money D.started earlier
4.What is Wen Kun's attitude towards China's Internet network?
A.Doubtful. B.Uncaring.
C.Critical. D.Positive.
高一英语阅读选择简单题查看答案及解析