A new study, a project of the researchers from the University of Pittsburgh in Pennsylvania, finds the fitness tracker probably does not help with weight loss.
The devices are designed to record your physical activity. They are usually worn around the wrist, where they measure a person’s heart rate. The research team looked at two groups of individuals. The first wore a fitness tracker and took part in health counseling (咨询) with experts to consider the best weight-loss plan. The researchers compared this group with people who only got health counseling.
The study found that those only speaking with the health experts lost nearly 6 kilograms, but those using a fitness tracker lost only 3.5 kilograms. John Jakicic, the lead researcher, questioned the use of electronic devices for weight control in place of “effective behavioral counseling for physical activity and diet. ”
The study involved 470 subjects aged between 18 and 35. Some of them were overweight, while others were considered obese (肥胖的). Over three fourths of the subjects were women. All the subjects were told to increase physical activity and start on a low-calorie diet. They had their weight measured once every six months. After six months, researchers divided the group into two parts: one continued with monthly counseling, while members of the other group were given a fitness tracker. Eighteen months later, both groups “showed significant improvements in fitness, physical activity, and diet,” with no major difference between groups. However, when it came to losing weight, the people who only spoke with experts lost nearly twice as much weight.
Jakicic said, “the study’s findings are important because effective long-term treatments are needed to address America’s obesity. ” More information is needed, he added, to learn how to best use these devices to change “physical activity and diet behaviors” in adults who want to lose weight.
1.All the subjects in the study were asked to ________.
A. start on a high-calorie diet B. wear a fitness tracker
C. increase physical activities D. record their heart rates
2.Why does Jakicic think the findings are important?
A. Wearing fitness trackers hardly helps people lose weight.
B. Physical activity and diet have no effect on weight loss.
C. Handling obesity requires effective long-term treatments.
D. There are great differences in fitness between both groups.
3.What can we infer about the study mentioned in the text?
A. The study went on for about two years.
B. More than 120 men took part in the study.
C. Health counseling helps lose almost 6 kilograms.
D. Wearing a fitness tracker is useful for keeping slim.
4.The purpose of the text is to ________.
A. describe how the researchers were conducting the study
B. indicate regular counseling for weight control is necessary
C. convince readers to wear fitness trackers for weight control
D. warn women are more likely to suffer from weight problems
高三英语阅读理解困难题
A new study, a project of the researchers from the University of Pittsburgh in Pennsylvania, finds the fitness tracker probably does not help with weight loss.
The devices are designed to record your physical activity. They are usually worn around the wrist, where they measure a person’s heart rate. The research team looked at two groups of individuals. The first wore a fitness tracker and took part in health counseling (咨询) with experts to consider the best weight-loss plan. The researchers compared this group with people who only got health counseling.
The study found that those only speaking with the health experts lost nearly 6 kilograms, but those using a fitness tracker lost only 3.5 kilograms. John Jakicic, the lead researcher, questioned the use of electronic devices for weight control in place of “effective behavioral counseling for physical activity and diet. ”
The study involved 470 subjects aged between 18 and 35. Some of them were overweight, while others were considered obese (肥胖的). Over three fourths of the subjects were women. All the subjects were told to increase physical activity and start on a low-calorie diet. They had their weight measured once every six months. After six months, researchers divided the group into two parts: one continued with monthly counseling, while members of the other group were given a fitness tracker. Eighteen months later, both groups “showed significant improvements in fitness, physical activity, and diet,” with no major difference between groups. However, when it came to losing weight, the people who only spoke with experts lost nearly twice as much weight.
Jakicic said, “the study’s findings are important because effective long-term treatments are needed to address America’s obesity. ” More information is needed, he added, to learn how to best use these devices to change “physical activity and diet behaviors” in adults who want to lose weight.
1.All the subjects in the study were asked to ________.
A. start on a high-calorie diet B. wear a fitness tracker
C. increase physical activities D. record their heart rates
2.Why does Jakicic think the findings are important?
A. Wearing fitness trackers hardly helps people lose weight.
B. Physical activity and diet have no effect on weight loss.
C. Handling obesity requires effective long-term treatments.
D. There are great differences in fitness between both groups.
3.What can we infer about the study mentioned in the text?
A. The study went on for about two years.
B. More than 120 men took part in the study.
C. Health counseling helps lose almost 6 kilograms.
D. Wearing a fitness tracker is useful for keeping slim.
4.The purpose of the text is to ________.
A. describe how the researchers were conducting the study
B. indicate regular counseling for weight control is necessary
C. convince readers to wear fitness trackers for weight control
D. warn women are more likely to suffer from weight problems
高三英语阅读理解困难题查看答案及解析
【安徽省江南十校2017届高三3月联考】D
A new study, a project of the researchers from the University of Pittsburgh in Pennsylvania, finds the fitness tracker probably does not help with weight loss.
The devices are designed to record your physical activity. They are usually worn around the wrist, where they measure a person’s heart rate. The research team looked at two groups of individuals. The first wore a fitness tracker and took part in health counseling (咨询) with experts to consider the best weight-loss plan. The researchers compared this group with people who only got health counseling.
The study found that those only speaking with the health experts lost nearly 6 kilograms, but those using a fitness tracker lost only 3.5 kilograms. John Jakicic, the lead researcher, questioned the use of electronic devices for weight control in place of “effective behavioral counseling for physical activity and diet.”
The study involved 470 subjects aged between 18 and 35. Some of them were overweight, while others were considered obese (肥胖的）.Over three fourths of the subjects were women. All the subjects were told to increase physical activity and start on a low-calorie diet. They had their weight measured once every six months. After six months, researchers divided the group into two parts: one continued with monthly counseling, while members of the other group were given a fitness tracker. Eighteen months later, both groups “showed significant improvements in fitness, physical activity, and diet,” with no major difference between groups. However, when it came to losing weight, the people who only spoke with experts lost nearly twice as much weight.
Jakicic said, ”the study’s findings are important because effective long-term treatments are needed to address America’s obesity. ” More information is needed, he added， to learn how to best use these devices to change “physical activity and diet behaviors” in adults who want to lose weight.
1.All the subjects in the study were asked to_____________.
A. start on a high-calorie diet B. wear a fitness tracker
C. increase physical activities D. record their heart rates
2.Why does Jakicic think the findings are important?
A. Wearing fitness trackers hardly helps people lose weight.
B. Physical activity and diet have no effect on weight loss.
C. Handling obesity requires effective long-term treatments.
D. There are great differences in fitness between both groups.
3.What can we infer about the study mentioned in the text?
A. The study went on for about two years.
B. More than 120 men took part in the study.
C. Health counseling helps lose almost 6 kilograms.
D. Wearing a fitness tracker is useful for keeping slim.
4.The purpose of the text is to________
A. describe how the researchers were conducting the study
B. indicate regular counseling for weight control is necessary
C. convince readers to wear fitness trackers for weight control
D. warn women are more likely to suffer from weight problems
高三英语阅读理解中等难度题查看答案及解析
129. The researcher collected information, studied it, did a lot of and learnt from the experiences of farmers.
| A．experiments | B．explanations | C．experiences | D．Tests |
高三英语单项填空简单题查看答案及解析
In a study published in the U. S. journal Science, researchers from the Chinese Academy of Agricultural Sciences(CAAS) and the University of Florida identified the chemical combinations and genetic recipe for better tomato flavor(味道).
“In recent years, consumers often complain that the modern tomato is less flavorful than it once was” said co-principal researcher Sanwen Huang. “Our results provide a practical road map for breeding tomato varieties with better flavor.”
For the study, a 170-person consumer group was created to evaluate 160 tomatoes representing 101 varieties, based on qualities such as “overall liking” and “flavor degree”. The results pointed to dozens of chemical compounds of interest, and further research using a statistical model discovered 33 flavor compounds connected with consumer liking, such as glucose(葡萄糖). The reason why modern tomatoes don’t taste good anymore is that a total of 13 of these flavor-associated compounds “were significantly reduced in modern varieties,” their paper wrote. Moreover, the researchers found that smaller fruit tended to have greater sugar content, suggesting that “selection for more sizable tomatoes has cost sweetness and flavor”.
Based on this knowledge, Huang and Professor Harry Klee of the University of Florida studied the whole genomes of 398 varieties of tomato, identifying about 250 positions of genes on a chromosome(染色体), which controlled tomato flavor.
“We’re just fixing what has been damaged over the last half century to push them back to where they were a century ago,” said Klee in a statement. “We can make the supermarket tomato taste noticeably better.” Klee said new tomato varieties with better flavor could be ready in three to four years. In addition, “the genes and pathways identified here in the tomato almost certainly point to pathways worth researching for improvement of flavor quality in other fruit crops,” they wrote.
1.According to the text, the study ________.
A. was carried out just through a survey
B. was conducted by Chinese researchers themselves
C. was completely focused on the genes of different tomatoes
D. was done with the background of declining flavor of tomatoes
2.The researchers have found that ________ in the study.
A. bigger tomatoes are much sweeter
B. some genetic positions affect the taste of tomatoes
C. some chemical compounds make tomatoes less tasty
D. a total of 13 flavor-associated compounds make tomatoes appealing in taste
3.What is the influence of the study according to the text?
A. The study lays the foundation for further researches to improve other fruit crops’ flavor.
B. The study makes it possible for us to have noticeably more tasty tomatoes next year.
C. The study provides a road for where to plant tomatoes with better flavor.
D. The study has fixed all the genes of existing tomatoes.
高三英语阅读理解困难题查看答案及解析
A recent study led by researchers from the National University of Singapore (NUS) has found a clear link between the color of a taxi and its accident rate. An analysis of 36 months of detailed taxi, driver and accident data from two fleets of yellow and blue taxis in Singapore suggested that yellow taxis have fewer accidents than blue taxis. The higher visibility (能见度) of yellow makes it less difficult for drivers to avoid getting into accidents with yellow taxis, leading to a lower accident rate.
The study was led by Prof Ho. To test whether there was a relationship between the color of a taxi and the number of accidents the taxi had, the research team analysed data collected by the largest taxi company in Singapore. The researchers found that yellow taxis have about 6. 1 fewer accidents per 1,000 taxis per month.
They also studied the economic effect of changing the color of the entire fleet of taxis to yellow. The Singapore taxi company involved in the study owns about 16,700 taxis in a ratio(比例) of one yellow to three blue taxis. If a commercial decision is made to switch from blue to yellow taxis, 76.6 fewer accidents will occur per month or 917 fewer accidents per year.
Assuming an average repair cost of $1,000 per car and a downtime of six days, the color of all taxis to yellow could produce an annual saving of $ 2 million.
“We are eager to continue to validate (证实) the findings of our study by looking at the use of yellow in other types of public transport, such as school buses. For example, we hope to compare the accident rates of yellow school buses against those of other colors to find out if yellow is indeed a safer color for school buses. Besides, we’re also interested to look at private-hire vehicles and do a comparison of the accident rates of vehicles that are of different colors.” Explained Prof Ho.
1.Why do yellow taxis result in fewer accidents?
A. Because yellow can be seen more easily.
B. Because yellow signals a warning of danger.
C. Because drivers tend to be more careful in yellow taxis.
D. Because people act more quickly in yellow surroundings.
2.What’s Prof Ho’s study based on?
A. Physical risks taxi passengers experience.
B. The economic effect of changing taxi color.
C. Data from Singapore’s largest taxi company.
D. Personal reports from taxi drivers worldwide.
3.What do Prof Ho’s words in the last paragraph suggest?
A. School buses should be painted yellow.
B. Their findings are worth popularizing.
C. Their study will be furthered.
D. Yellow should be widely used in public transport.
4.What can be the best title for the text?
A. Caution: yellow taxis ahead B. Safer to ride in yellow taxis
C. Why are yellow taxis preferred? D. How can colors help prevent accidents?
高三英语阅读理解困难题查看答案及解析
A recent study led by researchers from the National University of Singapore (NUS) has found a clear link between the color of a taxi and its accident rate. An analysis of 36 months of detailed taxi, driver and accident data from two fleets of yellow and blue taxis in Singapore suggested that yellow taxis have fewer accidents than blue taxis. The higher visibility (能见度） of yellow makes it less difficult for drivers to avoid getting into accidents with yellow taxis, leading to a lower accident rate.
The study was led by Prof Ho. To test whether there was a relationship between the color of a taxi and the number of accidents the taxi had, the research team analysed data collected by the largest taxi company in Singapore. The researchers found that yellow taxis have about 6.1 fewer accidents per 1,000 taxis per month.
They also studied the economic effect of changing the color of the entire fleet of taxis to yellow. The Singapore taxi company involved in the study owns about 16,700 taxis in a ratio (比例) of one yellow to three blue taxis. If a commercial decision is made to switch from blue to yellow taxis, 76.6 fewer accidents will occur per month or 917 fewer accidents per year.
Assuming an average repair cost of $1,000 per car and a downtime of six days, the color of all taxis to yellow could produce an annual saving of $2 million.
“We are eager to continue to validate(证实) the findings of our study by looking at the use of yellow in other types of public transport, such as school buses. For example, we hope to compare the accident rates of yellow school buses against those of other colors to find out if yellow is indeed a safer color for school buses. Besides, we’re also interested to look at private-hire vehicles and do a comparison of the accident rates of vehicles that are of different colors, ”explained Prof Ho.
1.Why do yellow taxis result in fewer accidents?
A. Because yellow signals a warning of danger.
B. Because yellow can be seen more easily.
C. Because drivers tend to be more careful in yellow taxis.
D. Because people act more quickly in yellow surroundings.
2.What’s Prof Ho’s study based on?
A. Physical risks taxi passengers experience.
B. The economic effect of changing taxi color.
C. Personal reports from taxi drivers worldwide.
D. Data from Singapore's largest taxi company.
3.What do Prof Ho’s words in the last paragraph suggest?
A. School buses should be painted yellow.
B. Their findings are worth popularizing.
C. Their study will be furthered.
D. Yellow should be widely used in public transport.
4.What can be the best title for the text?
A. Safer to ride in yellow taxis
B. Caution: yellow taxis ahead
C. Why are yellow Taxis preferred?
D. How can colors help prevent accidents?
高三英语阅读理解困难题查看答案及解析
A recent study led by researchers from the National University of Singapore(NUS)has found a clear link between the color of a taxi and its accident rate. An analysis of 36 months of detailed taxi, driver and accident data from two fleets of yellow and blue taxis in Singapore suggested that yellow taxis have fewer accidents than blue taxis. The higher visibility (能见度)of yellow makes it easier for drivers to avoid getting into accidents with yellow taxis, leading to a lower accident rate.
The study was led by Prof Ho. To test whether there was a causal relationship between the color of a taxi and the number of accidents the taxi had, the research team analysed data collected by the largest taxi company in Singapore. The researchers found that yellow taxis have about 6.1 fewer accidents per 1,000 taxis per month.
The researchers also studied the economic effect of changing the color of the entire fleet of taxis to yellow. The Singapore taxi company involved in the study owns about 16,700 taxis in a ratio(比例) of one yellow to three blue taxis. If a commercial decision is made to switch from blue to yellow taxis, 76.6 fewer accidents would occur per month or 917 fewer accidents per year. Assuming an average repair cost of $1,000 per car and a downtime of six days, switching the color of all taxis to yellow could produce an annual savings of $2 million.
“We are eager to continue to validate(证实) the findings of our study by looking at the use of yellow in other types of public transport, such as school buses. For instance, we hope to compare the accident rates of yellow school buses against other colors to find out if yellow is indeed a safer color for school buses. Besides, we are also interested to look at private-hire vehicles and do a comparison of the accident rates of vehicles that are of different colors,” explained Prof Ho.
1.Why do yellow taxis result in fewer accidents?
A. Because yellow can be seen more easily.
B. Because yellow signals a warning of danger.
C. Because drivers tend to be more careful in yellow taxis.
D. Because people act more quickly in yellow surroundings.
2.What’s Prof Ho’s study based on?
A. Physical risks taxi passengers experience.
B. The economic effect of changing taxi color.
C. Data from Singapore’s largest taxi company.
D. Personal reports from taxi drivers worldwide.
3.What do Prof Ho’s words in the last paragraph suggest?
A. School buses should be painted yellow.
B. Their findings are worth popularizing.
C. Yellow should be widely used in public transport.
D. Their study will be furthered.
4.What can be the best title for the text?
A. Caution: yellow taxis ahead
B. Safer to ride in yellow taxis
C. Why are yellow taxis preferred?
D. How can colors help prevent accidents?
高三英语阅读理解中等难度题查看答案及解析
阅读下面短文，在空白处填入 1 个适当的单词或括号内单词的正确形式。
A new study led by researchers at the Yale School of Public Health and published in the journal Lancet Planetary Health, finds that China’s countrywide ban 1. traffic mobility from February 10 to March 14 greatly limited automobile emissions and sharply reduced the 2. (country) often severe air pollution.
The improved air quality, in turn, prevented thousands of pollution-related 3. (death), an 4. (estimate)12,125, more than lives lost from the epidemic(流行 病), the study finds.
“This is a very surprising result. The epidemic continues to be a terrible thing for China and the rest of the world, but the decrease in emissions that accompanied 5. has actually presented some positive health results,” said Kai Chen, assistant professor at the Yale School of Public Health and the study’s first author. “The question is, how can we have one without the 6. ?”
Although the findings cannot be directly applied to other countries due to different severity of and responses to COVID-19, as well as 7. (differ) air pollution levels and population characteristics, reduced air pollution levels 8. (detect) in other Asian and European countries and the U.S.9. their own lockdowns (封城), Chen said. He notes that this reduction in pollution has 10. (like) brought about similar health benefits.
高三英语语法填空中等难度题查看答案及解析
A lot of research and studies have shown that Trench oil, taken out from kitchen waste, ______ the increase of cancers.
A appeals to B. attends to C. contributes to D. devotes to
高三英语单项填空简单题查看答案及解析
A lot of research and studies have shown that Trench oil, taken out from kitchen waste, ______ the increase of cancers.
| A．results from | B．attends to | C．contributes to | D．devotes to |
高三英语单项填空中等难度题查看答案及解析