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判断题
An exercise with heterogeneity can also have a positive effect on learner attitude and motivation. It provides an opportunity for the teacher to give slower or less confident students the approval and encouragement they need.（）
A
对
B
错
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更多 “判断题An exercise with heterogeneity can also have a positive effect on learner attitude and motivation. It provides an opportunity for the teacher to give slower or less confident students the approval and encouragement they need.（）A 对B 错” 相关考题
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Recent research had claimed that an excess of positive ions (离子) in the air can have an ill-effect on people's physical or psychological health. What are positive ions? Well, the air is full of ions, electrically charged particles, and generally there is a rough balance between the positive and the negative charges. But sometimes this balance becomes disturbed and a larger proportion of positive ions are found. This happens naturally before thunderstorms, earthquakes or when winds are blowing in certain countries. Or it can be caused by a build-up of static electricity indoors from carpets or clothing made of man-made fibers, or from TV sets, duplicators or computer display screens.When a large number of positive ions are present in the air many people experience unpleasant effects such as headaches, fatigue, irritability, and some particularly sensitive people suffer nausea (恶心) or even mental disturbance. Animals are also found to be affected, particularly before earthquakes; snakes have been observed to come out of hibernation(冬眠), rats to flee from their burrows, dogs howl and cats jump about unaccountably. This has led the US Geographical Survey to fund a network of volunteers to watch animals in all effort to foresee such disasters before they hit vulnerable areas such as California.Conversely, when large numbers of negative ions are present, then people have a feeling of well-being. Natural conditions that produce these large amounts are near the sea, close to waterfalls or fountains, or in any place where water is sprayed, or forms a spray. This probably accounts for the beneficial effect of a holiday by the sea, or in the mountains with tumbling streams or waterfalls.To increase the supply of negative ions indoors, some scientists recommend the use of ionizers : small portable machines which generate negative ions. They claim that ionizers not only clean and refresh the air but also improve the health of people sensitive to excess positive ions. Of course, there are the detractors, other scientists, who dismiss such claims and are skeptical about negative/positive ion research. Therefore people can only make up their own minds by observing the effects on themselves, or on others, of a negative rich or poor environment.After all, it is debatable whether depending on seismic readings to anticipate earthquakes is more effective than watching the cat.According to the passage, static electricity can be caused byA．using home-made electrical goods.B．wearing clothes made of natural materials.C．walking on artificial floor coverings.D．copying TV programs on a computer.
考题
_______changed: whatever men can do, women can also do.A. Time hasB. Time haveC. Age hasD. Age have
考题
What kind of athlete can be elected captain?
A、a natural leaderB、other members like to followC、He/she should have the ability of promoting team spirit when times get toughD、He/ She always possess a positive attitude、
考题
— You’d better have more physical exercise.— _______A.I’d like that, but I can’t afford the time.B.That’s good.C.Really.D.Yes, I would.
考题
We advised him to give up smoking,_______a lot of exercise.
A、I'm afraid not. Because I have an appointment with my dentist tonightB、Of course not. I have no idea doC、No, I can'tD、That's all set
考题
We all need (11) ．Doctors say it is good (12) 0ur (13) ．It makes your heart and body strong． And you'll (14) better about yourself． It's best to exercise(15) a week．Twenty minutes each time is enough．There are (16 ways to exercise． You can walk， (17) ，play football or swim Many people go to special places to exercise． They are called "fitness centers ． These places have (18) equipment． Some people buy equipment(器械) for their families， But it is very expensive．Exercising can be fun． Friends can exercise together (19) a fitness center． How do you exercise? How (20) do you exercise?( )11．A． exercisingB． exercisesC． to exerciseD． exercised
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共用题干
Many Women Who Beat Cancer Don't Change HabitsMany women who battle breast cancer will tell you it's a life-changing experience. However,a new study shows that for many___1___ ,the changes aren't always positive or permanent.Beth Snoke has watched her mother and both grandmothers battle and survive breast ___2___.So when she was diagnosed,there was no doubt in her mind ___3___ she had to do.“I do exactly what the doctors say as far as the medicine that I'm on,as ___4___ as the vitamins,the diet,and the fitness. And I can't stress enough___5___ important that is,”saysBeth Snoke. But a surprising new study shows that___ 6___ every woman who beats breast cancer is getting that message. In fact,nearly 40% of them say even___7___ surviving breast cancer,they haven't made significant changes in the 8 they eat or how much they exer- cise.“Not all survivors are taking advantage of this teachable moment and making positive health changes in___9___life,”says Electra Paskett,PhD,at Ohio State University's Cornprehensive Cancer Center. Paskett says diet and exercise have been proven to not only help women feel better during and after treatment,they may___10___play a role in preventing some cancers from coming back.___ 11___ growing evidence,some women just aren't listening.“Colon cancer survivors ___12___ exercise have actually been shown to have improved survival rates.So,yes,it is true that perhaps by making some of these healthy choices we can actually increase their health,”says Paskett.As a breast cancer survivor ___13___ ,Paskett knows first hand how much difference diet and exercise can___14___.The challenge,she says,is to get more survivors to be more like Beth,during and after treatment.Experts-say exercising more and eating a healthier diet can also cut___15___on stress and help women overcome depression. There are more than 2 million breast cancer survivors liv-ing in the U. S. of those,nearly a million have yet to change their diet or exercise routines.3._________A: whichB: thatC: whatD: those
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共用题干
Many Women Who Beat Cancer Don't Change HabitsMany women who battle breast cancer will tell you it's a life-changing experience. However,a new study shows that for many___1___ ,the changes aren't always positive or permanent.Beth Snoke has watched her mother and both grandmothers battle and survive breast ___2___.So when she was diagnosed,there was no doubt in her mind ___3___ she had to do.“I do exactly what the doctors say as far as the medicine that I'm on,as ___4___ as the vitamins,the diet,and the fitness. And I can't stress enough___5___ important that is,”saysBeth Snoke. But a surprising new study shows that___ 6___ every woman who beats breast cancer is getting that message. In fact,nearly 40% of them say even___7___ surviving breast cancer,they haven't made significant changes in the 8 they eat or how much they exer- cise.“Not all survivors are taking advantage of this teachable moment and making positive health changes in___9___life,”says Electra Paskett,PhD,at Ohio State University's Cornprehensive Cancer Center. Paskett says diet and exercise have been proven to not only help women feel better during and after treatment,they may___10___play a role in preventing some cancers from coming back.___ 11___ growing evidence,some women just aren't listening.“Colon cancer survivors ___12___ exercise have actually been shown to have improved survival rates.So,yes,it is true that perhaps by making some of these healthy choices we can actually increase their health,”says Paskett.As a breast cancer survivor ___13___ ,Paskett knows first hand how much difference diet and exercise can___14___.The challenge,she says,is to get more survivors to be more like Beth,during and after treatment.Experts-say exercising more and eating a healthier diet can also cut___15___on stress and help women overcome depression. There are more than 2 million breast cancer survivors liv-ing in the U. S. of those,nearly a million have yet to change their diet or exercise routines.10._________A: tooB: doC: furtherD: also
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共用题干
第二篇Ants Have Big Impact on Environment as "Ecosystem Engineers"Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as"ecosystem engineers"and predators.The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.Firstly,through moving the soil by nest building activity and by collecting food they affect the level of nutrients in the soil.This can indirectly impact the local populations of many animal groups,from decomposers to species much higher up the food chain.Secondly,they prey on a wide range of other animals,including larger prey which can be attacked by vast numbers of ant workers.Dirk Sanders,an author of the study from the university's Centre for Ecology and Conservation,said, "Ants are very effective predators which thrive in huge numbers.They're also very territorial and very aggressive,defending their resources and territory against other predators.All of this means they have a strong influence on their surrounding area.""In this research,we studied for the first time how big this impact is and the subtleties of it.What we found is that despite being predators,their presence can also lead to an increase in density and diversity of other animal groups.They genuinely play a key role in the local environment,having a big influence on the grassland food web,"Sanders said.The study,carried out in Germany,studied the impact of the presence of different combinations and densities of black garden ants and common red ants,both of which can be found across Europe,including the UK. It found that a low density of ants in an area increased the diversity and density of other animals in the local area,particularly the density of herbivores and decomposers.At higher densities ants had no or the opposite effect,the predation counteracting the positive influence.Dr Frank van Veen,another author on the study,said:"What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels,but as the number of ants increases,their predatory impacts have the bigger effect一thereby counteracting the positive influence via ecosystem engineering."Ants are important components of the ecosystem not only because they constitute a great part of the animal biomass but also because they act as ecosystem engineers.Ant biodiversity is incredibly high,and these organisms are highly responsive to human impact,which obviously reduces its richness.However,it is not clear how such disturbance damages the maintenance of ant services to the ecosystem.Ants are important in below ground processes through the alteration of the physical and chemical environment and through their effects on plants,microorganisms,and other soil organisms.What does Paragraph 6 tell us?A:Ants bring about a negative influence to an area when their population is small.B:Ants bring about a positive influence to an area when their population is small.C:Ants' predation counteracts the positive influence they may have on an area.D:At higher density,ants produce a positive influence on an area.
考题
Economic Recovery on the Way
Economic experts are predicting that the poorly performing domestic economy will recover in the next financial quarter. After months of economic recession, local companies 44 to make larger profits. Ted Wilder, a leading authority in the field, suggests that the reasons for the positive outlook can largely be attributed to recent 45.
Laws enacted by the federal government last month granting benefits and subsidies to the manufacturing industry have greatly increased production, leading to record numbers of goods being shipped overseas. The 46 in exports is also having a positive impact on the rest of the economy.
阅读以上短文，回答200-202题。
第44题答案是__________A.are expected
B.have expected
C.is expected
D.had expected
考题
共用题干
第二篇Exercise and BrainJust as exercise strengthens the heart and lungs,bones and muscles,it may also power up the brain.A succession of scientific studies of animals implies that physical activity has a positive effect on mental functioning."It's clear that the brain benefits from exercise,"says brain scientist William Greenough of the University of Illinois at Urbana-Champaign.His studies with rats have demonstrated two primary effects of activity:Vigorous physical exercise provides the brain with more fuel,and skill-based ex-ercise increases the formation of connections in the brain, which, according to the proposals of some scientists,may make the brain better able to process information.In one experiment,laboratory rats were separated into three groups.One group was exercised by running inside an automatic wheel,a second group improved their skills in a complicated obstacle course,and a third group was inactive."The animals that learned to go through the obstacle course exhibited a greater number of brain connections than the animals in the exercised or inactive groups,"Greenough said."In contrast, the animals that exercised inside the automatic wheel possessed a greater density of blood vessels in the brain than did either of the other two groups of animals."Learning a new dance step may boost the brain in the same way that learning a language can, he says.And if the dance is a good physical exercise as well,the benefits multiply.Young brains may be especially able to boost brain power through exercise,suggested another of Greenough's experiments that showed the most significant changes in the brain occurred among rats that had been exercised when very young.And while animals aren't people,he says it is logical to make the inference that an effect found in rats may also apply to humans.Human studies have focused primarily on older adults and suggest that regular exercise can improve the speed with which the brain processes information.Measurements made by Arthur Kramer at the University of Illinois demonstrated that inactive adults,aged 63 to 82,could hit buttons faster in response to a tone after they went through a 10-week water exercise course.A corresponding control group that didn't exercise showed no improvement.Vigorous physical exercise can________.A:provide the brain with more fuelB:increase the formation of connections in the brainC:make the brain better able to process informationD:do nothing good to our brain
考题
共用题干
第三篇 Smart ExerciseDoctors are starting to find more and more information that suggests a connection between exercise and brain development.Judy Cameron,a scientist at Oregon Health and Science University,studies brain development.According to her research,it seems that exercise can make blood vessels,including those in the brain,stronger and more fully developed.Dr. Cameron claims this allows people who exercise to concentrate better. As she says:"While we already know that exercise is good for the heart,exercise can literally cause physical changes in the brain."The effects of exercise on brain development can even be seen in babies.Babies who do activities that require a lot of movement and physical activity show greater brain development than babies who are less physically active.With babies,even a{ittle movement can show big results. Margaret Barnes , a pediatrician（儿科医师）,believes in the importance of exercise.She thinks that many learning disabilities that children have in elementary school or high school can be traced back to a lack of movement as babies. "Babies need movement that stimulates their five senses.They need to establish a connection between motion and memory.In this way,as they get older,children will begin to associate physical activity with higher learning,"says Margaret. Older people can beef up their brains as well.Cornell University studied a group of seniors ranging in age from seventy to seventy-nine. Their study showed a short-term memory increase of up to 40 percent after exercising just three hours a week.The exercise does not have to be very difficult,but it does have to increase the heart rate.Also,just like the motion for infants,exercise for older people should involve some complexity.Learning some new skills or motions helps to open up memory paths in the brain that may not havebeen used for a long time.For most people,any type of physical activity that increases the heart rate is helpful. The main goal is to increase the brain's flow of blood.And your brain can benefit from as little as two to three hours of exercise a week. To be beneficial,exercise for older people shouldA:be done in a group. B: be done on a daily basis.C: involve great difficulty. D:increase the heart rate.
考题
共用题干
第三篇 Smart ExerciseDoctors are starting to find more and more information that suggests a connection between exercise and brain development.Judy Cameron,a scientist at Oregon Health and Science University,studies brain development.According to her research,it seems that exercise can make blood vessels,including those in the brain,stronger and more fully developed.Dr. Cameron claims this allows people who exercise to concentrate better. As she says:"While we already know that exercise is good for the heart,exercise can literally cause physical changes in the brain."The effects of exercise on brain development can even be seen in babies.Babies who do activities that require a lot of movement and physical activity show greater brain development than babies who are less physically active.With babies,even a{ittle movement can show big results. Margaret Barnes , a pediatrician（儿科医师）,believes in the importance of exercise.She thinks that many learning disabilities that children have in elementary school or high school can be traced back to a lack of movement as babies. "Babies need movement that stimulates their five senses.They need to establish a connection between motion and memory.In this way,as they get older,children will begin to associate physical activity with higher learning,"says Margaret. Older people can beef up their brains as well.Cornell University studied a group of seniors ranging in age from seventy to seventy-nine. Their study showed a short-term memory increase of up to 40 percent after exercising just three hours a week.The exercise does not have to be very difficult,but it does have to increase the heart rate.Also,just like the motion for infants,exercise for older people should involve some complexity.Learning some new skills or motions helps to open up memory paths in the brain that may not havebeen used for a long time.For most people,any type of physical activity that increases the heart rate is helpful. The main goal is to increase the brain's flow of blood.And your brain can benefit from as little as two to three hours of exercise a week.The expression"beef up"in paragraph 3 meansA:control. B: strengthen.C:operate. D: encourage.
考题
共用题干
第二篇Exercise and BrainJust as exercise strengthens the heart and lungs,bones and muscles,it may also power up the brain.A succession of scientific studies of animals implies that physical activity has a positive effect on mental functioning."It's clear that the brain benefits from exercise,"says brain scientist William Greenough of the University of Illinois at Urbana-Champaign.His studies with rats have demonstrated two primary effects of activity:Vigorous physical exercise provides the brain with more fuel,and skill-based ex-ercise increases the formation of connections in the brain, which, according to the proposals of some scientists,may make the brain better able to process information.In one experiment,laboratory rats were separated into three groups.One group was exercised by running inside an automatic wheel,a second group improved their skills in a complicated obstacle course,and a third group was inactive."The animals that learned to go through the obstacle course exhibited a greater number of brain connections than the animals in the exercised or inactive groups,"Greenough said."In contrast, the animals that exercised inside the automatic wheel possessed a greater density of blood vessels in the brain than did either of the other two groups of animals."Learning a new dance step may boost the brain in the same way that learning a language can, he says.And if the dance is a good physical exercise as well,the benefits multiply.Young brains may be especially able to boost brain power through exercise,suggested another of Greenough's experiments that showed the most significant changes in the brain occurred among rats that had been exercised when very young.And while animals aren't people,he says it is logical to make the inference that an effect found in rats may also apply to humans.Human studies have focused primarily on older adults and suggest that regular exercise can improve the speed with which the brain processes information.Measurements made by Arthur Kramer at the University of Illinois demonstrated that inactive adults,aged 63 to 82,could hit buttons faster in response to a tone after they went through a 10-week water exercise course.A corresponding control group that didn't exercise showed no improvement.According to the passage what is not the advantage of physical exercises?A:do good to our mental health. B:strengthen our hearts and lungs.C:strengthen our bones and muscles. D:help us lose weight.
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共用题干
Going on a DietA typical person needs about 1,800 calories per day to stay alive.These calories keep your heart ______(51)and your lungs breathing.They keep your organs operating______(52)and your brain running.They also keep your body warm.A person______(53)weight because he or she takes in more calories per day than needed.The only way to lose fat is to______(54)the number of calories that you take in per day.This is the basic______(55)behind going on a diet.______(56),diets don't work for most people.They do lose weight but then_______(57)the diet and put it back.Building a sensible diet and exercise plan is the key to______(58)a consistent weight.You need to figure out how many calories you need in a day and how many you______(59)take in.The next step is to add exercise so that you can______(60)the number of calories you can consume per day.Exercise charts can show you how many calories different_______(61)of exercise can burn.Burning 250 or 500 calories per day can______(62)a big difference.You can ride an exercise bike while you are watching TV or you can_(63)the stairs instead of the elevator.Find an exercise______(64).Exercise can be a lot easier if there is someone to talk to.It's a good idea to wear firm-fitting clothes if you are on a diet.______(65)clothing acts as a reminder of what you are trying to accomplish.62._________A:have B:do C:make D:give
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共用题干
第二篇Exercise and BrainJust as exercise strengthens the heart and lungs,bones and muscles,it may also power up the brain.A succession of scientific studies of animals implies that physical activity has a positive effect on mental functioning."It's clear that the brain benefits from exercise,"says brain scientist William Greenough of the University of Illinois at Urbana-Champaign.His studies with rats have demonstrated two primary effects of activity:Vigorous physical exercise provides the brain with more fuel,and skill-based ex-ercise increases the formation of connections in the brain, which, according to the proposals of some scientists,may make the brain better able to process information.In one experiment,laboratory rats were separated into three groups.One group was exercised by running inside an automatic wheel,a second group improved their skills in a complicated obstacle course,and a third group was inactive."The animals that learned to go through the obstacle course exhibited a greater number of brain connections than the animals in the exercised or inactive groups,"Greenough said."In contrast, the animals that exercised inside the automatic wheel possessed a greater density of blood vessels in the brain than did either of the other two groups of animals."Learning a new dance step may boost the brain in the same way that learning a language can, he says.And if the dance is a good physical exercise as well,the benefits multiply.Young brains may be especially able to boost brain power through exercise,suggested another of Greenough's experiments that showed the most significant changes in the brain occurred among rats that had been exercised when very young.And while animals aren't people,he says it is logical to make the inference that an effect found in rats may also apply to humans.Human studies have focused primarily on older adults and suggest that regular exercise can improve the speed with which the brain processes information.Measurements made by Arthur Kramer at the University of Illinois demonstrated that inactive adults,aged 63 to 82,could hit buttons faster in response to a tone after they went through a 10-week water exercise course.A corresponding control group that didn't exercise showed no improvement.Which statement is correct according to the passage?A:The effect of exercises found in rats can not apply to people.B:Changes in the brain occurred among young rats are more significant than those among adult rats.C:Regular exercise can only improve the speed with which the older adults' brain processes information.D:The author encourages people do more skill-based exercise instead of vigorous physical exercise.
考题
共用题干
第三篇 Smart ExerciseDoctors are starting to find more and more information that suggests a connection between exercise and brain development.Judy Cameron,a scientist at Oregon Health and Science University,studies brain development.According to her research,it seems that exercise can make blood vessels,including those in the brain,stronger and more fully developed.Dr. Cameron claims this allows people who exercise to concentrate better. As she says:"While we already know that exercise is good for the heart,exercise can literally cause physical changes in the brain."The effects of exercise on brain development can even be seen in babies.Babies who do activities that require a lot of movement and physical activity show greater brain development than babies who are less physically active.With babies,even a{ittle movement can show big results. Margaret Barnes , a pediatrician（儿科医师）,believes in the importance of exercise.She thinks that many learning disabilities that children have in elementary school or high school can be traced back to a lack of movement as babies. "Babies need movement that stimulates their five senses.They need to establish a connection between motion and memory.In this way,as they get older,children will begin to associate physical activity with higher learning,"says Margaret. Older people can beef up their brains as well.Cornell University studied a group of seniors ranging in age from seventy to seventy-nine. Their study showed a short-term memory increase of up to 40 percent after exercising just three hours a week.The exercise does not have to be very difficult,but it does have to increase the heart rate.Also,just like the motion for infants,exercise for older people should involve some complexity.Learning some new skills or motions helps to open up memory paths in the brain that may not havebeen used for a long time.For most people,any type of physical activity that increases the heart rate is helpful. The main goal is to increase the brain's flow of blood.And your brain can benefit from as little as two to three hours of exercise a week.The title of the passage implies thatA:only smart people do exercise. B: exercise can be smart or stupid.C:exercise keeps the brain strong. D:it is fashionable to do exercise.
考题
The empirical evidence suggests that______extra working hours can have positive effects on labor market outcomes, while others reporting zero or negative effects.A.absorbing
B.adopting
C.abolishing
D.abandoning
考题
资料：Poor health is not only damaging to employees, it is detrimental to businesses." Corporations pay a heavy cost for stress-related illnesses, such as hypertension, gastrointestinal problems, and substance abuse." says Rubin.
"Up to 90% of all doctor visits in the United States are for stress-related illnesses, "according to Dr. Mehet Oz of the Dr. Oz Show.
Chronic stress has a variety of negative side effects such as weight gain, lower immune system, increased risk of disease, and fatigue. Employers should encourage employees to reduce stress levels and improve their overall health.
The first step is to educate employees on health topics. Provide reading materials or offer seminars. People can't make positive changes if they don't know what to change.
Once employees know about health topics such as stress, exercising, and healthy eating. start a health related competition such as the Biggest Loser. This offers employees motivation and a support system. If the entire office is involved, employees will be more likely to accomplish their goals.
To help employees make positive lifestyle changes, have a kitchen equipped with a refrigerator and microwave to prepare healthy amounts of exercise throughout the day are beneficial.
According to Dr. Oz, "Exercise releases serotonin and dopamine. the feel-good hormones that become blocked during stress. Walking stairs is a great workout. One study showed that walking stairs 7 minutes a day reduces the risk of heart disease by two-thirds."
If possible, offer a company discount on gym memberships. This will encourage to make positive choices outside of the office and to exercise regularly.
What can be inferred from these paragraphs?A.It is helpful to the company if the employers can lay off employees with health issues.
B.Company discount on gym memberships will surely improve employees’ frequency of exercise.
C.Most Americans have suffered from stress-related illnesses.
D.To make sure that the employees are aware of the importance of physical and mental health is essential to promote good health in a company.
考题
An exercise with heterogeneity gives no opportunity for the really advanced students to exercise their capacity.（）A对B错
考题
An exercise with heterogeneity can also have a positive effect on learner attitude and motivation. It provides an opportunity for the teacher to give slower or less confident students the approval and encouragement they need.（）A对B错
考题
An exercise with heterogeneity gives no opportunity for the really advanced students to exercise their capacity.（）
考题
An exercise with heterogeneity can also have a positive effect on learner attitude and motivation. It provides an opportunity for the teacher to give slower or less confident students the approval and encouragement they need.（）
考题
判断题An exercise with heterogeneity gives no opportunity for the really advanced students to exercise their capacity.（）A
对B
错
考题
单选题Which of the following is true?A
All nicknames have a positive meaning.B
All negatives have a negative meaning.C
Nicknames are endearing.D
All nicknames can be either positive or negative.
考题
单选题Questions 26 to 30 are based on the following passage.
Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to “light” beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet.
In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts: for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry (小甜饼). Even exercise professionals concede half a point here. “Exercise by itself is a very tough way to lose weight,” says York Onnen, program director of the President’s Council on Physical Fitness and Sports.
Still, exercise’s supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight.
If you have been sedentary (极少活动的) and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year’s time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight.
“Even exercise professionals concede half a point here” (Line 3, Para. 2) means “They （）”.A
agree that the calories in a small piece of pastry can be difficult to work off by exerciseB
partially believe diet plays a supporting role in weight reductionC
are not fully convinced that dieting can help maintain one’s new weightD
are not sufficiently informed of the positive role of exercise in losing weight
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