Over 80 percent of the population _____ workers.
A.will be B. are C.is D.was
高二英语单项填空中等难度题
Over 80 percent of the population _____ workers.
A.will be B. are C.is D.was
高二英语单项填空中等难度题查看答案及解析
In the United States, 30 percent of the adult (成年人) population has a “weight problem”. To many people, the case is clear: we eat too much. But scientific evidence(证据)does little to support the idea. Going back to the America of 1910, we find that people were thinner than today. Yet they ate more food. In those days, people worked harder physically, walked more, used machines much less, and didn’t watch TV.
Several modern studies, moreover, have shown that fat people do not eat more on average (平均) than thinner people. In fact, some investigations (调查), such as a 1990 study of 3,545 London office workers, show that fatter people eat less than slimmer people.
Studies show that slim people are more active than fat people. A study by a research group of Stanford University School of Medicine found the following interesting facts:
The more the men ran, the more fat they lost.
The more they ran, the more they ate.
Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.
1.What kind of physical problem do many adult Americans have?
A. They are too thin. B. They work too hard.
C. They are too fat. D. They lose too much fat.
2.Which of the following words can take the place of the word “slim” in this passage?
A. poor B. thin C. healthy D. rich
3.Compared with the adult American population today, the Americans of 1910 ______.
A. ate more food and had more activities B. ate less food but had more activities
C. ate less food and had less physical activities D. had more weight problems
4.What have modern medical and scientific researches reported to us?
A. Fat people eat less food and are less active.
B. Fat people eat more food than slim people but are less active.
C. Fat people eat more food than slim people but are more active.
D. Thin people run less, but have greater increase in food intake.
高二英语阅读理解中等难度题查看答案及解析
The incomes of men workers went up by almost 50 percent. _________, women workers saw their earnings fall.
A. Meanwhile B. Moreover C. Otherwise D. Therefore
高二英语单项填空中等难度题查看答案及解析
According to the WHO, 90 percent of the world’s population lives in a place where they are exposed to unsafe levels of airborne pollutants, contributing to up to seven million deaths each year. If you live in a city, chances are that you’re part of that 90 percent, even if your city is relatively clean. That’s why cities worldwide have started embracing Internet of Things (IoT)solutions.
One of the best ways to fight pollution is to figure out where it’s worst and where it’s coming from. If you’ve ever made a habit of checking air quality around you, you may notice that there aren’t actually that many monitoring stations, and your closest one may not be that close. For pollution data to really be accurate and helpful, we need a lot more of it.
Luckily, IoT sensors and low-power wide-area networks are making it a lot easier to get and spread ultra-local data. Lampposts are one popular place to put them. For example, the Republic of Korea and Barcelona have already built out a network of pollution sensors in their streetlights. On the other hand, outfitting (配备) cars, bikes, and even people with pollution sensors provides valuable data on a smaller, more mobile scale.
Since pollutant levels can change dramatically even from one city block to another, having smaller-scale data is important for making a lot of decisions that, over time, might have a major influence on our health and behavior. It can influence where we decide to live, when we exercise, whether we bike to work, and, perhaps most importantly, what we can do about pollution in our area.
What all the Internet of Things can help us do on a personal level is use less energy. The data it provides, though, can be used to make big and small changes to the way we behave and build, and that is eventually where we’ll see benefits.
1.What’s the problem mentioned in Paragraph 1?
A.The death rate is high every year. B.There are too many people in the world.
C.There is little space for people to live in. D.Air pollution is more serious than expected.
2.How does the author mainly develop Paragraph 3?
A.By analyzing main causes. B.By citing research findings.
C.By giving specific examples. D.By making close comparisons.
3.Why is it necessary to collect data on a smaller scale?
A.It directly decreases pollutant levels. B.It uses less energy to clean the air.
C.It covers more areas of air pollution. D.It betters decisions on our lifestyle.
4.What’s the author’s attitude towards using IoT to solve air pollution?
A.Disapproving. B.Doubtful.
C.Positive. D.Uncaring.
高二英语阅读理解中等难度题查看答案及解析
According to the United Nations, an aging society refers to one ____ 10 percent or more of the population is over 60, or 7 percent or more is over 65.
A. where B. when C. which D. that
高二英语单项填空简单题查看答案及解析
Elephants born without tusks(长牙) normally make up just 2 to 6 percent of the herd population. However, that is not the case at Mozambique’s Gorongosa National Park, where 33 percent of female elephants born after the country’s civil war ended in 1992 are tuskless. While that might be just a coincidence(巧合), Joyce Poole, an elephant behavior expert, has another theory.
The researcher thinks we may be witnessing an unnaturally evolution of the species due to the hunting of the elephants for their valuable tusks. Unlike our permanent teeth, tusks of elephants grow throughout the animal’s life, becoming longer and thicker with age. For decorative purposes, poachers usually first target older males due to their impressive tusks, and females are not spared either. As a result, in areas where hunting goes unchecked for long, the number of tuskless females increases. This allows them to gain a biological advantage, resulting in a larger than average population of female offspring (后代)with no tusks.
Poole believes this phenomenon explains the rise in the number of tuskless females at Gorongosa National Park. The researcher says before the war, the park was home to over 4,000 elephants. However, by the time the conflict ended in 1992, about 90 percent of the elephants had been slaughtered for tusks to help finance weapons and meat to feed the soldiers. Of the less than 200 survivors, over 50 percent of the females had no tusks. Hence, it is not surprising that the park’s tuskless elephant population has grown greatly.
So far, the hunting has largely influenced female elephants. Poole explains, “Very few males are tuskless because males require tusks for fighting. Without tusks, males have a much harder time breeding and do not pass on their genes(基因) as often as tusked ones.” If the hunting of males for tusks continues at this pace, it could result in a generation of elephants with much smaller tusks.
1.How does the writer draw readers’ attention to the topic?
A.By comparing figures. B.By offering explanation. C.By giving an example. D.By introducing an expert.
2.What might be the reason for the increase of tuskless females?
A.Illegal hunting. B.Pure coincidence.
C.Natural evolution. D.Effective protection.
3.What does the underlined word “slaughtered” in Paragraph 3 mean?
A.Raised. B.Protected. C.Killed. D.Trained.
4.What is the text mainly about?
A.The future of African elephants.
B.The protection of African elephants.
C.The increasing number of tuskless elephants.
D.The genetic consequence of hunting elephants.
5.In which section of a newspaper may this text appear?
A.Health. B.Science. C.Education. D.Finance.
高二英语阅读理解中等难度题查看答案及解析
Working women make up nearly half of the U.S. workforce, and 51 percent of professional workers, like doctors, lawyers, nurses and accountants, are female. While climbing the career ladder can be rewarding, it often comes with one big downside: weight gain!
New research published this week in the International Journal of Obesity shows that working women are more likely to be overweight, and the more you work, the more pounds you're likely to pile on. Like many women, I work..., a lot! As a selfemployed nutrition communications specialist, I sit at my desk, in front of a computer, for hours on end. Sitting alone is one of the worst things you can do for your health, and it's directly linked to being overweight and increased fatness, so the fact that women in the workforce gain weight isn't that surprising. If you work, you have less time to move around. Obesity researchers are revealing many other ways that employment is harmful to your diet and waistline.
In the International Journal of Obesity study, some 9, 276 Australian women aged 45-50 had their body weight and employment status monitored for two years. Results? Those who worked more than 35 hours were likely to gain weight compared to those who worked fewer hours or were out of the workforce. What' s more, the more hours a woman worked in a week, the more weight she gained.
The authors of the Australian study attribute weight gain among working women to inactivity, lack of time for food preparation, more use of prepared foods, high levels of stress, lack of sleep and consuming more alcohol. I'll also add in travel,meals eaten out and working at night as other factors that I can find to make balancing work with a healthy diet a challenge.
1.The text above is probably taken from__________.
A.a sports report B.a fashion journal
C.a health and fitness magazine D.an advertisement post
2.A woman who works as an accountant is more likely to__________.
A.gain more weight B.have more time to move around
C.work a full time job D.keep a balanced diet
3.Which is NOT the cause of working women weight gaining according to the passage?
A.Lacking time for food preparation. B.Using more prepared food.
C.Consuming too much alcohol. D.Taking part in more activities.
4.What can be a suitable title for the test?
A.Less activity leads to fat. B.Ways of gaining weight.
C.Effects of weight gaining. D.Working women more likely pile on pounds.
高二英语阅读理解中等难度题查看答案及解析
In 1800, only three percent of the world's population lived in cities. Only one city — Beijing — had a population of over a million. Most people lived in rural areas, and never saw a city in their lives. In 1900, just a hundred years later, roughly 150 million people lived in cities, and the world’s ten largest cities all had populations exceeding one million. By 2000, the number of city dwellers exceeded three billion; and in 2008, the world's population crossed a tipping point — more than half of the people on Earth lived in cities. By 2050, that could increase to over two-thirds. Clearly, humans have become an urban species.
In the 19th and early 20th centuries, many people viewed cities negatively — crowded, dirty environments full of disease and crime. They feared that as cities got bigger, living conditions would worsen. In recent decades, however, attitudes have changed. Many experts now think urbanization (城市化) is good news, offering solutions to the problems of Earth’s growing population.
Harvard economist Edward Glaeser, author of The Victory of the Cir, is one such person. Glaeser argues that cities are very productive because “the absence of space between people” reduces the cost of transporting goods, people, and ideas. While the flow of goods has always been important to cities, what is most important today is the flow of ideas. Successful cities enable people to learn from each other easily, and attract and reward smart people with higher wages.
Another urbanization supporter is environmentalist Stewart Brand. Brand believes cities help the environment because they allow haft of the world’s population to live on about four percent of the land. This leaves more space for open country, such as farmland. City dwellers also have less impact per person on the environment than people in the countryside. Their roads, sewers, and power lines need fewer resources to build and operate. City apartments require less energy to heat, cool, and light. Most importantly, people in cities drive less so they produce fewer greenhouse gases per person.
So it’s a mistake to see urbanization as evil; it’s a natural part of development. The challenge is how to manage the growth.
1.What is Paragraph 1 mainly about?
A.The history of modern cities.
B.Changes taking place within cities.
C.How cities have grown over time.
D.Why modern cities are changing.
2.How have experts’ attitudes towards cities changed in recent decades?
A.They now view the weaknesses as strengths.
B.They no longer see city-riving as attractive.
C.They accept city life in spite of its problems.
D.They think city-riving provides more benefits.
3.Which of the following would Edward Glaeser agree with?
A.Cities provide more economic opportunities.
B.City people get along better with each other.
C.Over-crowded cities result in problems.
D.Cities limit the flow of ideas.
4.According to Paragraph 4, what would be the result of moving people out of cities?
A.Economic production would be reduced.
B.There would be less farmland available.
C.People would travel less frequently.
D.House values would fall greatly.
高二英语阅读理解中等难度题查看答案及解析
In 1800, only three percent of the world's population lived in cities. Only one city — Beijing — had a population of over a million. Most people lived in rural areas, and never saw a city in their lives. In 1900, just a hundred years later, roughly 150 million people lived in cities, and the world’s ten largest cities all had populations exceeding one million. By 2000, the number of city dwellers exceeded three billion; and in 2008, the world's population crossed a tipping point — more than half of the people on Earth lived in cities. By 2050, that could increase to over two-thirds. Clearly, humans have become an urban species.
In the 19th and early 20th centuries, many people viewed cities negatively — crowded, dirty environments full of disease and crime. They feared that as cities got bigger, living conditions would worsen. In recent decades, however, attitudes have changed. Many experts now think urbanization (城市化) is good news, offering solutions to the problems of Earth’s growing population.
Harvard economist Edward Glaeser, author of The Victory of the Cir, is one such person. Glaeser argues that cities are very productive because “the absence of space between people” reduces the cost of transporting goods, people, and ideas. While the flow of goods has always been important to cities, what is most important today is the flow of ideas. Successful cities enable people to learn from each other easily, and attract and reward smart people with higher wages.
Another urbanization supporter is environmentalist Stewart Brand. Brand believes cities help the environment because they allow haft of the world’s population to live on about four percent of the land. This leaves more space for open country, such as farmland. City dwellers also have less impact per person on the environment than people in the countryside. Their roads, sewers, and power lines need fewer resources to build and operate. City apartments require less energy to heat, cool, and light. Most importantly, people in cities drive less so they produce fewer greenhouse gases per person.
So it’s a mistake to see urbanization as evil; it’s a natural part of development. The challenge is how to manage the growth.
1.What is Paragraph 1 mainly about?
A. The history of modern cities.
B. Changes taking place within cities.
C. How cities have grown over time.
D. Why modern cities are changing.
2. How have experts’ attitudes towards cities changed in recent decades?
A. They now view the weaknesses as strengths.
B. They no longer see city-riving as attractive.
C. They accept city life in spite of its problems.
D. They think city-riving provides more benefits.
3. Which of the following would Edward Glaeser agree with?
A. Cities provide more economic opportunities.
B. City people get along better with each other.
C. Over-crowded cities result in problems.
D. Cities limit the flow of ideas.
4.According to Paragraph 4, what would be the result of moving people out of cities?
A. Economic production would be reduced.
B. There would be less farmland available.
C. People would travel less frequently.
D. House values would fall greatly.
高二英语阅读理解中等难度题查看答案及解析
Strangely enough, music is no fun at all for some people. About four percent of the population is what scientists call "amusic", People who are amusic are born without the ability to recognize or reproduce musical notes. Amusic people often cannot tell the difference between two songs. Amusics can only hear the difference between two notes if they are very far apart on the musical scale.
As a result, songs sound like noise to an amusic. Many amusics compare the sound of music to pieces of metal hitting each other. Life can be hard for amusics. Their inability to enjoy music set them apart from others. It can be difficult for other people to identify with their condition. In fact, most people cannot begin to grasp what it feels like to be amusic. Just going to a restaurant or a shopping mall can be uncomfortable or even painful. That is why many amusics intentionally stay away from places where there is music. However, this can result in withdrawal and social isolation. "I used to hate parties," says Margaret, a seventy-year- old woman who only recently discovered that she was amusic.
By studying people like Margaret, scientists are finally learning how to identify this unusual condition.
Scientists say that the brains of amusics are different from the brains of people who can appreciate music. The difference is complex, and it doesn't involve defective hearing. Amusics can understand other nonmusical sounds well. They also have no problems understanding ordinary speech. Scientists compare amusics to people who just can't see certain colors.
Many amusics are happy when their condition is final diagnosed. For years, Margaret felt embarrassed about her problem with music. Now she knows that she is not alone. There is a name for her condition. That makes it easier for her to explain. "When people invite me to a concert, I just say, No, thanks, I am amusic',"says Margaret. "I just wish I had learned to say that when I was seventeen and not seventy. "
1.Amusics have the following characteristics except that___________
A. they are born without the ability to recognize musical notes
B. they hate music and often keep off places where there is music
C. they are set apart from others as they fail to enjoy music
D. they prefer to make metal noise rather than listen to music
2.How do scientists finally identify the unusual condition of amusic?
A. By sorting documents and data.
B. By studying people with amusic
C. By making a lot of experiments.
D. By drawing on research results of others.
3.What does the underlined word most probably mean in the passage?
A. detective.
B. acute.
C. imperfect.
D. artificial.
4.In the last paragraph, Margaret expressed her wish that __________
A. she were seventeen years old rather than seventy
B. she hadn't felt embarrassed about her problem
C. her problem with music had been diagnosed earlier
D. there could be a better name for her condition
高二英语阅读理解中等难度题查看答案及解析