Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures（核心体温）in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity（湿度）.
In very cold climates, there is a constant danger of developing hypothermia（低体温）, which is a life threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0°C. However, differences in persons and even the time of day can cause it to be as much as 6°C higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4°C. Below 29.4°C, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9—15.6°C. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7°C.
In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life threatening hyperthermia typically starts in humans when their temperatures rise to 40.6—41.7°C. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.
1.Why can humans keep stable body temperatures in different seasons?
A. Because their bodies are unusually efficient.
B. Because they experience different climates.
C. Because they can adjust to cultural patterns and technologies.
D. Because they have internal temperature regulating systems.
2.What does Paragraph 2 mainly discuss?
A. The dangerous effects of hypothermia.
B. The change of body temperature.
C. The survival of the Swedish woman.
D. The regulating systems of natural temperature.
3.People are unlikely to survive under the body temperature .
A. higher than 34.4°C B. lower than 29.4°C
C. between 40.6—41.7°C D. between 34.4—37°C
4.What is the best title for the passage?
A. Surviving in an ice trap
B. Getting to know hypothermia
C. Adapting to climate extremes
D. Changing core body temperature
高三英语阅读理解中等难度题
Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures（核心体温）in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity（湿度）.
In very cold climates, there is a constant danger of developing hypothermia（低体温）, which is a life threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0°C. However, differences in persons and even the time of day can cause it to be as much as 6°C higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4°C. Below 29.4°C, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9—15.6°C. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7°C.
In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life threatening hyperthermia typically starts in humans when their temperatures rise to 40.6—41.7°C. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.
1.Why can humans keep stable body temperatures in different seasons?
A. Because their bodies are unusually efficient.
B. Because they experience different climates.
C. Because they can adjust to cultural patterns and technologies.
D. Because they have internal temperature regulating systems.
2.What does Paragraph 2 mainly discuss?
A. The dangerous effects of hypothermia.
B. The change of body temperature.
C. The survival of the Swedish woman.
D. The regulating systems of natural temperature.
3.People are unlikely to survive under the body temperature .
A. higher than 34.4°C B. lower than 29.4°C
C. between 40.6—41.7°C D. between 34.4—37°C
4.What is the best title for the passage?
A. Surviving in an ice trap
B. Getting to know hypothermia
C. Adapting to climate extremes
D. Changing core body temperature
高三英语阅读理解中等难度题查看答案及解析
Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures（核心体温）in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity（湿度）.
In very cold climates, there is a constant danger of developing hypothermia（低体温）, which is a life threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0°C. However, differences in persons and even the time of day can cause it to be as much as 6°C higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4°C. Below 29.4°C, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9-15.6°C. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7°C.
In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life threatening hyperthermia typically starts in humans when their temperatures rise to 40.6-41.7°C. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.
1.Why can humans keep stable body temperatures in different seasons?
A．Because their bodies are unusually efficient.
B．Because they experience different climates.
C．Because they can adjust to cultural patterns and technologies.
D．Because they have internal temperature regulating systems.
2.What does Paragraph 2 mainly discuss?
A．The dangerous effects of hypothermia.
B．The change of body temperature.
C．The survival of the Swedish woman.
D．The regulating systems of natural temperature.
3.People are unlikely to survive under the body temperature .
A．higher than 34.4°C B．lower than 29.4°C
C．between 40.6-41.7°C D．between 34.4-37°C
4.What is the best title for the passage?
A．Surviving in an ice trap
B．Getting to know hypothermia
C．Adapting to climate extremes
D．Changing core body temperature
高三英语阅读理解中等难度题查看答案及解析
Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity (湿度).
In very cold climates, there is a constant danger of developing hypothermia, which is a life-threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0°C. However, differences in persons and even the time of day can cause it to be as much as 6°C higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4°C. Below 29.4°C, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9-15.6°C. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7°C.
In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life-threatening hyperthermia typically starts in humans when their temperatures rise to 40.6-41.7°C. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.
1.What keeps our body temperature stable?
A. Culture and technologies.
B. The stable earth temperature.
C. Our strong determination.
D. Some kind of in-body system.
2.What is a Swedish woman mentioned for in the text?
A. Proving the strength of life.
B. Arguing against some conclusion.
C. Showing the limit on humans’ body temperature.
D. Introducing an exceptional case about our body temperature.
3.Which of the following may cause hyperthermia?
A. Extreme climates.
B. Very cold climates.
C. Controllable infections.
D. Temperatures below 29.4°C.
4.What can be a suitable title for the text?
A. Humans’ Temperature Regulating System
B. Changes of Body Temperatures
C. Humans’ Temperature
D. A Ice Trap Survivor
高三英语阅读理解中等难度题查看答案及解析
Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures（核心体温）in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity（湿度）.
In very cold climates, there is a constant danger of developing hypothermia（低体温）, which is a life threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0°C. However, differences in persons and even the time of day can cause it to be as much as 6°C higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4°C. Below 29.4°C, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9—15.6°C. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7°C.
In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life threatening hyperthermia typically starts in humans when their temperatures rise to 40.6—41.7°C. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.
1.Why can humans keep stable body temperatures in different seasons?
A. Because their bodies are unusually efficient.
B. Because they experience different climates.
C. Because they can adjust to cultural patterns and technologies.
D. Because they have internal temperature regulating systems.
2.What does Paragraph 2 mainly discuss?
A. The dangerous effects of hypothermia.
B. The change of body temperature.
C. The survival of the Swedish woman.
D. The regulating systems of natural temperature.
3.People are unlikely to survive under the body temperature .
A. higher than 34.4°C B. lower than 29.4°C
C. between 40.6—41.7°C D. between 34.4—37°C
4.What is the best title for the passage?
A. Surviving in an ice trap
B. Getting to know hypothermia
C. Adapting to climate extremes
D. Changing core body temperature
高三英语阅读理解中等难度题查看答案及解析
Robots have certain advantages compared to humans: They are efficient, tireless, can be repaired when damaged and they never get sick. This last trait has made them the star during our fight against the COVID-19 pandemic. While hundreds of thousands of medical workers have fallen ill dealing with this highly infectious virus and a lot more are forced to stay at home for fear of getting the disease, this isn’t a problem for robots.
This is why the COVID-19 outbreak is seen as the “tipping point”---noted The Independent Science reporter Anthony Cuthbertson---for robots to start to replace humans in certain jobs.
In areas like hospitals and healthcare facilities, robots are used to perform high-risk tasks. In China, for example, a hotel in Hangzhou employed a robot named “Little Peanut” to deliver food to people under quarantine（隔离期）. In Spain, robots are about to be used to test people for the coronavirus. Ultraviolet-light-disinfection (紫外线消毒) robots are also being widely used to clean hospital corridors and wards.
“Hospitals around the world are waking up to autonomous disinfection,” Per Juul Nielsen, CEO of Denmark’s UVD Robots, a leading company manufacturing disinfection robots, told Forbes. “We can’t build these robots fast enough.”
In non-medical companies, robots are also replacing human employees since they don’t have the problem of social distancing and will never take sick leave. Walmart and Amazon, for example, where robots are already used in sorting, packing and shipping, are planning to increase the number of robots in their facilities. Fast-food chains like McDonald’s are not only delivering food with robots in some areas, but also looking to use them as cooks and servers.
According to futurist Martin Ford, using more robots than human employees can prove to be rewarding for companies---even when the pandemic is over. “People will prefer to go to a place that has fewer workers and more machines because they feel they can lower overall risk,” Ford told the BBC.
But this sudden surge (激增) in robot demand doesn’t mean that they triumph over humans in every aspect. According to Bill Smart, a roboticist at Oregon State University, the human contact between doctors and patients is still important. Doctors comfort the patients and guide them through hard decisions while robots are only doing routine tasks, like cleaning and giving tests, just to free up doctors and nurses.
It might be true that robots have certain advantages over humans, but they are still secondary to human interaction.
1.What is the text mainly about?
A.The advantages of robots compared to humans.
B.Different views toward applying robots to fight COVID-19.
C.Why the COVID-19 outbreak has fueled robot demand.
D.The important role humans play in certain areas.
2.What has made robots desirable during the pandemic according to the text?
A.They can be repaired when damaged.
B.They test people for coronavirus more precisely.
C.They never get tired and can replace doctors and nurses.
D.They are not vulnerable to the coronavirus.
3.What does Martin Ford think of the application of robots?
A.Its benefits are appealing and lasting.
B.Machines are less disturbing than humans.
C.It poses a threat to human employment.
D.There are some risks with the use of robots.
4.What can be concluded from the last two paragraphs?
A.The demand for robots is too great to meet.
B.Human interaction is essential in some areas.
C.Doctors can make more accurate judgments than robots.
D.Robots need updating to improve contact with humans.
高三英语阅读理解困难题查看答案及解析
Bats are the only mammals that can fly a great distance, but they have another ability. Many bats live a very long time for an animal of their size. European researchers are studying bats to understand why they live so long. They hope to make discoveries aimed at fighting the aging process in human beings.
Last week, the group of scientists said they had discovered important biological qualities in some bat species.The group studied bat chromosomes(染色体). The scientists were most interested in structures connected to the ends of the chromosomes. They are called telomeres(端粒)，which shorten each time a cell divides. Scientists believe this shortening process causes cells to break down. They say this is what causes aging.
The European researchers studied 493 bats from four bat species. The group used information that had been gathered over more than 60 years. Of these animals, the greater mouse-eared bat generally lived an average of 37 years.The scientists said it had telomeres that did not shorten with age. Another Myotis bat holds the record for oldest age, reaching 41 years.The scientists’ findings suggest that these bats’ cells have the ability to maintain and repair their telomeres. This, they said, helps guard against the aging process.
Based on its body size, a bat like the greater mouse-eared bat would be expected to live four years. But, these mammals have been found to live nearly 10 times longer than that. The scientists found that only 19 species of mammals live longer than humans when their body size is considered. Eighteen of these are bats. The only exception is an unusual African rat.
1.What decides bats’ aging process according to the text? .
A. The body size of the bat B. The type of chromosomes
C. The building of cell D. The length of telomeres
2.How long does a greater mouse-eared bat generally live?
A. 19 years. B. 41 years.
C. 37 years. D. 60 years.
3.We can learn from the text that _________ .
A. nineteen kinds of bats could live longer than humans
B. the scientists have studied bats for more than six decades
C. the bats studied in the research are of the same species
D. researchers focus on finding out why humans live long
4.In which column of a magazine can you read the text?
A. Science B. Lifestyle
C. Fashion D. Business
高三英语阅读理解中等难度题查看答案及解析
Bats are the only mammals that can fly a great distance, but they have another ability. Many bats live a very long time for an animal of their size. European researchers are studying bats to understand why they live so long. They hope to make discoveries aimed at fighting the aging process in human beings.
Last week, the group of scientists said they had identified important biological qualities in some bat species. The group studied the bats’ chromosomes (染色体), a line of genes found in the nucleus of cells. The scientists were most interested in structures connected to the ends of the chromosomes. They are called telomeres (端粒), which protect the ends of chromosomes and shorten each time a cell divides. Scientists believe this shortening process causes cells to break down. They say this is what cause aging.
The European researchers studied 493 bats from four bat species. The group used information that had been gathered over more than 60 years. Of these animals, the greater mouse-eared bat generally lived the longest, an average of 37 years. The scientists said this and a related species, which are grouped together under the name Myotis, had telomeres that did not shorten with age. Another Myotis bat holds the record for the oldest age, reaching 41 years. The scientists’ findings suggest that these bats’ cells have the ability to maintain and repair their telomeres. This helps guard against the aging process.
Based on its body size, a bat like the greater mouse-eared bat would be expected to live four years. But, these mammals have been found to live nearly 10 times longer than that. The scientists found that only 19 species of mammals live longer than humans when their body size is considered. Eighteen of these are bats.
1.Why are European researchers studying bats?
A.To learn the similar habits between bats and human beings.
B.To find out why the greater mouse-eared bats live a long life.
C.To try to understand why bats prefer to fly during the night.
D.To discover a good way to prevent human beings from aging.
2.What does the second paragraph mainly explain to us?
A.The structures of the bats’ chromosomes. B.What causes aging biologically.
C.The functions of telomeres. D.What causes cells to break down.
3.Why do the greater mouse-eared bat and another Myotis bat live so long?
A.They are grouped together under the name Myotis.
B.Their telomeres are decreasing with age.
C.Their cells are able to keep up and fix their telomeres.
D.They have more telomeres than human beings do.
4.What can we infer from the last paragraph?
A.Bats live 10 times longer than other mammals.
B.Bats enjoy the longest life among mammals.
C.The greater mouse-eared bat and other bats should have lived longer.
D.Many bats live longer than human beings considering their body size.
高三英语阅读理解中等难度题查看答案及解析
Bats are the only mammals(哺乳动物) that can fly a great distance, but they have another ability. Many bats live a very long time for an animal of their size. European researchers are studying bats to understand why they lives0 long. They hope to make discoveries aimed at fighting the aging process in human beings.
Last week, the group of scientists said they had identified important biological qualities in some bat species. The group studied bat chromosomes(染色体), a line of genes found in the nucleus(细胞核) of cells. The scientists were most interested in structures connected to the ends of the chromosomes. They are called telomeres(端粒), which protect the ends of chromosomes and shorten each time a cell divides. Scientists believe this shortening process causes cells to breakdown. They say this is what causes aging.
The European researchers studied 493 bats from four bat species. The group used information that had been gathered over more than 60 years. Of these animals ，the greater mouse-eared bat generally lived the longest, an average of 37 years. The scientists said this and a related species, which are grouped together under the name Myotis, had telomeres that did not shorten with age. Another Myotis bat holds the record for oldest age, reaching 41years. The scientists’ findings suggest that these bats cells have the ability to maintain and repair their telomeres. This, they said, helps guard against the aging process.
Based on its body size, a bat like the greater mouse-eared bat would be expected to live four years. But, these mammals have been found to live nearly 10 times longer than that. The scientists found that only 19 species of mammals live longer than humans when their body size is considered. Eighteen of these are bats.
1.European researchers are studying bats mainly hoping to .
A. learn the living habit of bats.
B. find out why bats enjoy a long life.
C. try to understand why bats can fly as a mammal
D. discover a good way to prevent human beings from aging.
2.What does the second paragraph mainly explain to us?
A. The structures of bats’ chromosomes.
B. What cause aging biologically.
C. The functions of telomeres.
D. What causes cells to break down.
3.The greater mouse-eared bat and Myotis bat live so long because .
A. they are grouped together under the name Myois
B. their telomeres are decreasing with age
C. their ells are able to keep up and fix their telomeres
D. their bodies produce more telomeres than human beings
4.From the last paragraph, we can infer that. .
A. bats live 10 times longer that human beings
B. bats enjoy the longest life among mammals
C. bats like the greater mouse-eared bat should have lived longer
D. Most bats live longer than human beings considering their body size
高三英语阅读理解中等难度题查看答案及解析
Many of the earth’s plants and animals have already ______ and several other species are endangered．
A．died away B．died out C．died down D．died of
高三英语单项填空中等难度题查看答案及解析
Maybe you often have arguments with your parents about clothes, homework, friends and many other personal things.1.Most teenagers must be sorry or even frightened when their parents fight. They might think their parents don't love each other any more and that it would result in divorce.
2.They might disagree about important things like jobs or major family decisions. They might even disagree about little things that don’t seem important at all—Like what’s for dinner or what time someone gets home. Maybe sometimes parents can feel so strongly about their differences that it may lead to arguments. However, these arguments are often over quickly.3.
As a family member, you should find out what it really means when your parents fight. When your parents get upset with each other, they might cry or say things they don’t really mean. Most people lose their cool now and then, so if your parents arc fighting, don’t worry too much about it.4.
If your parents' fight really bothers you, you might find it hard to sleep or go to school.5.They may not even realize how upset you are until you tell them how their arguments affect you. You can also tell other relatives, a teacher or a friend.
Just remember that no family is perfect and arguments are common in every family.
A. Try to find a good way to solve it.
B. Parents might fight over small things
C. You should never argue with your parents.
D. But what’s going on when your parents fight with each other?
E. In fact, it is normal for parents to disagree and argue from time to time.
F. If this happens, try talking to one or both of your parents about their behavior.
G. Parent may apologize and make up and the family gets back into its usual way.
高三英语七选五简单题查看答案及解析