The human body is a living machine, and, like...

The human body is a living machine, and, like all machines, it needs "fuel" （燃料） to supply it with energy．This is provided by the food we eat．But how much do we need to stay healthy?

The energy value of food is usually measured in calories．A calorie is the amount of heat required to raise the temperature of 1 kg of water by 1℃．The number of calories people need per day is different．Also, the number of calories you use at any one moment normally depends on the activity you are in．For example, you need more calories for standing than for sitting, more for running than for walking, and so on．

The energy in food is in the form of three kinds of chemical materials-carbohydrate（碳水化合物）, protein（蛋白质）and fat．Carbohydrate provides 3．8 Cal/gm, protein 4．0 Cal/gm, and fat 8．8 Cal/gm．Each food contains different amount of these materials, as the round pictures show．

1．The amount of calories supplied by equal amounts of milk, rice, and peanuts is the largest in the case of ________．

A．milk             B．rice               C．peanuts        D．rice or peanuts

2．Choose one statement from among A-D that agrees with the passage and the pictures above．

A．You need more calories for swimming than for mountain climbing．

B．Food contains energy in the form of carbohydrates, proteins and fuel．

C．Different people need different amounts of energy depending on their age, sex and the activities they are in．

D．3 grams of milk provides 16．6 calories because carbohydrate provides 3．8 Cal/gm, protein 4．0 Cal/gm and fat 8．8 Cal/gm．

3．This article mainly tells us ________．

A．all the energy is in food           B．the human body needs energy

C．the number of calories depends on your activity

D．we must only eat peanuts to get calories

高三英语阅读理解简单题查看答案及解析

___ the machine’s enormous size, it runs smoothly and noiselessly.

A. For good　　　　　 　　 　 B. For ever

C. For all　　 　　　　　　　 D. For sure

高三英语单项填空中等难度题查看答案及解析

Humans like to live and work in groups. Language is the “cement”(胶合剂)1.holds these groups together. Language is part of culture. Culture, in this sense2.(mean)all those customs, skills, and attitudes that are part of the behavior of a　 3.(particularly) group. What you think　 4.what you want in life are all affected by the culture of the group in which you5. (raise). Groups of people live in different ways. They may have different skills, organizations, and art forms. Their family life may be completely different from yours.

Human beings are inventive animals. They can decide to change their cultures in order to meet various6.(situation). Of all living things, human beings are the　 7.(clever). They can choose 8.(live)in many environments and in a wide variety of ways. Only human beings can choose where and how they want to live and then improve the physical environment to help9. (they)realize these choices. Acquiring the wisdom to make wise choices 10.(be) the lasting challenge of being human.

高三英语短文填空中等难度题查看答案及解析

阅读理解。

Pilates, yoga and the running machine get all the attention when it comes to popular ways to stay healthy.

There is, however, a more humble exercise that might not be so attractive, but has all the benefits — walking.

Certified fitness professional Jolynn Jaekel explains, “What I love about walking is that anyone can do it at any age and any fitness level. Plus, it is good for your heart, your head and your wallet.”

A recent report details the health benefits of walking. The report found that walking regularly to fulfill the 150 minutes of moderate physical exercise every week, recommended by the UK's chief medical officer, could save 37,000 lives each year. Scientists at the Lawrence Berkeley National Laboratory in California found that quick walking reduces the risk of heart disease more effectively than running. They observed participants aged between 18 and 80 over a six­year period and found that walking reduced the risk of heart disease by 9.3%, while running reduced it by 4.5%. And there is even more good news: 30 minutes of quick walking over five days could help you sleep easily, according to research by Oregon State University. The study by the university showed that walking helped participants sleep better and feel more alert during the day.

The sooner you get started, the sooner you'll notice the differences in your mind and body. So, go out for your 30­minute walk in a nearby park or green space.

1.The underlined word “humble” in the first paragraph probably means “________”．

A．plain　　　　　 　　 B．relaxing

C．popular　 　　 　　 D．active

2.What does Jolynn Jaekel think of walking?

A．It's loved by people of all ages.

B．It's much healthier than running.

C．It's a money­saving physical exercise.

D．It's becoming more and more popular.

3.What did scientists at the Lawrence Berkeley National Laboratory find?

A．Walking helps people with sleep problems.

B．Walking contributes to curing heart disease.

C．Walking 150 minutes per week can save lives.

D．Walking is better than running in some cases.

4.In which section of a newspaper can we read this text?

A．Comment. 　　　　　　　 B．Lifestyle.

C．Education. 　　　　　　 D．Science.

高三英语阅读理解中等难度题查看答案及解析

For all the technological wonders of modem medicine, health care-with its fax machines and clipboards(写字板)—is out of date. This outdated era is slowly drawing to a close as the industry catches up with the artificial-intelligence ( AI) revolution.

Eric Topol, an expert in heart disease and enthusiast for digital medicine, thinks AI will be particularly useful for such tasks as examining images, observing heart traces for abnormalities or turning doctors' words into patient records. It will be able to use masses of data to work out the best treatments, and improve workflows in hospitals. In short, AI is set to save time, lives and money.

The fear some people have is that AI will be used to deepen the assembly-line culture of modem medicine. If it gives a “ gift of time” to doctors, they argue that this bonus should be used to extend consultations, rather than simply speeding through them more efficiently.

That is a fine idea, but as health swallows an ever-bigger share of national wealth, greater efficiency is exactly what is needed, at least so far as governments and insurers are concerned. Otherwise, rich societies may fail to cope with the needs of ageing and growing populations. An extra five minutes spent chatting with a patient is costly as well as valuable. The AI revolution will also enable managerial accountants to adjust and evaluate every aspect of treatment. The autonomy of the doctor will surely be weakened, especially, perhaps, in public-health systems which are duty-bound to cut unnecessary costs.

The Hippocratic Oath(誓言) holds that there is an art to medicine as well as a science, and that “warmth, sympathy and understanding may outweigh the surgeon's knife or the chemist's drug”. There's lots of sense in it: the patients of sympathetic physicians have been shown to recover better. Yet as the supply of human carers fails to satisfy the demand for health care, the future may involve consultations on smartphones and measurements monitored by chatbots. The considerately warmed stethoscope ( 听诊器) ,placed gently on a patient's back, may become a relic of the past.

1.What's Dr Topol's attitude toward AI's coming into medicine?

A.Concerned. B.Doubtful. C.Optimistic. D.Cautious.

2.What does the author of the text attach more importance to?

A.Medical costs. B.National wealth.

C.Longer consultation. D.Greater efficiency.

3.Why is the Hippocratic Oath mentioned?

A.To prove the bright future of AI.

B.To show the advantage of a human doctor.

C.To explain medical equipment is more important.

D.To argue a human doctor performs as well as a robot.

4.What may be the best title for the text?

A.Health care and AI B.AI and its applications

C.Doctors and Patients D.Dr Topol and digital medicine

高三英语阅读理解中等难度题查看答案及解析

For all the technological wonders of modem medicine, health care-with its fax machines and clipboards(写字板)—is out of date. This outdated era is slowly drawing to a close as the industry catches up with the artificial-intelligence ( AI) revolution.

Eric Topol, an expert in heart disease and enthusiast for digital medicine, thinks AI will be particularly useful for such tasks as examining images, observing heart traces for abnormalities or turning doctors' words into patient records. It will be able to use masses of data to work out the best treatments, and improve workflows in hospitals. In short, AI is set to save time, lives and money.

The fear some people have is that AI will be used to deepen the assembly-line culture of modem medicine. If it gives a “ gift of time” to doctors, they argue that this bonus should be used to extend consultations, rather than simply speeding through them more efficiently.

That is a fine idea, but as health swallows an ever-bigger share of national wealth, greater efficiency is exactly what is needed, at least so far as governments and insurers are concerned. Otherwise, rich societies may fail to cope with the needs of ageing and growing populations. An extra five minutes spent chatting with a patient is costly as well as valuable. The AI revolution will also enable managerial accountants to adjust and evaluate every aspect of treatment. The autonomy of the doctor will surely be weakened, especially, perhaps, in public-health systems which are duty-bound to cut unnecessary costs.

The Hippocratic Oath(誓言) holds that there is an art to medicine as well as a science, and that “warmth, sympathy and understanding may outweigh the surgeon's knife or the chemist's drug”. There's lots of sense in it: the patients of sympathetic physicians have been shown to recover better. Yet as the supply of human carers fails to satisfy the demand for health care, the future may involve consultations on smartphones and measurements monitored by chatbots. The considerately warmed stethoscope ( 听诊器) ,placed gently on a patient's back, may become a relic of the past.

1.What's Dr Topol's attitude toward AI's coming into medicine?

A.Concerned. B.Doubtful. C.Optimistic. D.Cautious.

2.What does the author of the text attach more importance to?

A.Medical costs. B.National wealth.

C.Longer consultation. D.Greater efficiency.

3.Why is the Hippocratic Oath mentioned?

A.To prove the bright future of AI.

B.To show the advantage of a human doctor.

C.To explain medical equipment is more important.

D.To argue a human doctor performs as well as a robot.

4.What may be the best title for the text?

A.Health care and AI B.AI and its applications

C.Doctors and Patients D.Dr Topol and digital medicine

高三英语阅读理解中等难度题查看答案及解析

For all the technological wonders of modem medicine, health care-with its fax machines and clipboards(写字板)—is out of date. This outdated era is slowly drawing to a close as the industry catches up with the artificial-intelligence ( AI) revolution.

Eric Topol, an expert in heart disease and enthusiast for digital medicine, thinks AI will be particularly useful for such tasks as examining images, observing heart traces for abnormalities or turning doctors' words into patient records. It will be able to use masses of data to work out the best treatments, and improve workflows in hospitals. In short, AI is set to save time, lives and money.

The fear some people have is that AI will be used to deepen the assembly-line culture of modem medicine. If it gives a “ gift of time” to doctors, they argue that this bonus should be used to extend consultations, rather than simply speeding through them more efficiently.

That is a fine idea, but as health swallows an ever-bigger share of national wealth, greater efficiency is exactly what is needed, at least so far as governments and insurers are concerned. Otherwise, rich societies may fail to cope with the needs of ageing and growing populations. An extra five minutes spent chatting with a patient is costly as well as valuable. The AI revolution will also enable managerial accountants to adjust and evaluate every aspect of treatment. The autonomy of the doctor will surely be weakened, especially, perhaps, in public-health systems which are duty-bound to cut unnecessary costs.

The Hippocratic Oath(誓言) holds that there is an art to medicine as well as a science, and that “warmth, sympathy and understanding may outweigh the surgeon's knife or the chemist's drug”. There's lots of sense in it: the patients of sympathetic physicians have been shown to recover better. Yet as the supply of human carers fails to satisfy the demand for health care, the future may involve consultations on smartphones and measurements monitored by chatbots. The considerately warmed stethoscope ( 听诊器) ,placed gently on a patient's back, may become a relic of the past.

1.What's Dr Topol's attitude toward AI's coming into medicine?

A.Concerned. B.Doubtful. C.Optimistic. D.Cautious.

2.What does the author of the text attach more importance to?

A.Medical costs. B.National wealth.

C.Longer consultation. D.Greater efficiency.

3.Why is the Hippocratic Oath mentioned?

A.To prove the bright future of AI.

B.To show the advantage of a human doctor.

C.To explain medical equipment is more important.

D.To argue a human doctor performs as well as a robot.

4.What may be the best title for the text?

A.Health care and AI B.AI and its applications

C.Doctors and Patients D.Dr Topol and digital medicine

高三英语阅读理解中等难度题查看答案及解析

The farmers had the machine ________ all day and night.

A．work　 B．working

C．worked　 D．to work

高三英语单项填空中等难度题查看答案及解析

The new machine is supposed to be the solution to all our production problems, but"____".

A. Practice makes perfect               B. The proof of the pudding is in the eating

C. Many hands make light work       D. I think, therefore I am

高三英语单项填空中等难度题查看答案及解析

How long can human beings live? Most scientists who study old age think that the human body is ___ to live no longer than 120 years. However, 110 years is probably the longest that anyone could hope to live — if he or she is ___ healthy and lucky. Some scientists even say we can live as long as 130 years! Yet, our cells simply cannot continue to reproduce ___. They wear out, and as a result, we get old and ___ die.

Even though we can’t live forever, we are living a ___ life than ever before. In 1900, the average American life span(寿命)was only 47 years, but today it is 75 years!

When does old age begin then? Sixty-five may be out-of-date as the ___ line between middle age and old age. After all, many older people don’t begin to experience physical and mental ___ until after age 75.

People are living longer because more people ___ childhood. Before modern medicine changed the laws of nature, many children died of common childhood ___. Now that the chances of dying ____ are much lower, the chances of living long are much higher due to better diets and health care.

On the whole, our population is getting older. The ____ in our population will have lasting effects on our social development and our way of life. Some people fear such changes will be for the worse, while some see ____, not disaster. Today, many men and women in their "golden years" are healthy, still active, and young in ____ if not in age.

As our society grows old, we need the ____ of our older citizens. With long lives ahead of them, they need to ____ active and be devoted.

1.A. designed B. selected C. improved D. discovered

2.A. completely B. generally C. apparently D. extremely

3.A. rapidly B. harmlessly C. endlessly D. separately

4.A. eventually B. hopelessly C. automatically D. desperately

5.A. busier B. longer C. richer D. happier

6.A. finishing B. guiding C. waiting D. dividing

7.A. stress B. damage C. decline D. failure

8.A. survive B. enjoy C. remember D. value

9.A. problems B. fears C. worries D. diseases

10.A. poor B. young C. sick D. quiet

11.A. changes B. recovery C. safety D. increases

12.A. dreams B. chances C. strengths D. choices

13.A. mind B. appearance C. voice D. movement

14.A. protection B. suggestions C. contributions D. permission

15.A. sound B. appear C. turn D. stay

高三英语完形填空中等难度题查看答案及解析