Many people may not believe it, but this is what is happening: polar bears are dying out! They are dying because they are losing a great deal of habitat due to human incursion（侵入）and global warming. They are dying because of starvation as well. With the sea ice they depend on for survival shrinking, it is becoming increasingly difficult for them to find food.
An ecosystem is highly dependent on all of its parts, and removing even a single species can result in serious consequences. Polar bears are at the top of the predators（捕食性动物）where they live. They play an important part in the ecosystem. They feed on seals, fish and deer. Several other animals depend on the kill of polar bears. The failure to save polar bears might result in loss of these predators.
In addition, all large predators perform a very important function in their habitat: helping to control the populations of other species. When an animal group loses its natural predators, its population will rise rapidly, having a direct result in population decrease of other groups. A huge boom in population of Arctic seals would have a direct effect on the prey(捕食) of seals, and could reduce numbers of certain types of fish.
This could also have a direct effect on humans, who might have to compete with Arctic seals for food supplies from fish. Lack of polar bears could eventually affect human food supply. Human beings shall save polar bears to ensure the food supply.
There is no doubt that we should save polar bears. However, there is still another question: can they be saved? This is a matter that scientists debate because of rapid degradation（恶化）of the polar bear’ environment in recent years due to warming temperatures. It is estimated that if the bears cannot adapt to changing climates, they might die out before the end of the 21st century, with about 50% of the animals disappearing by 2050. So time is running out!
There are some things that may help slow down global warming and help delay extinction of polar bears. These include finding new energy sources that don’t give off greenhouse gases and not making any more incursions into polar bear’s territory.
1.Which is NOT the threat to the survival of polar bears according to the passage?
A. Human’s killing. B. Global warming.
C. Habitat loss. D. Lack of food.
2.Why do we need to save polar bears?
A. For the predators in the ecosystem.
B. For the seals in Arctic Circle.
C. For our own source of food.
D. For our environment.
3.If bears can’t adapt to changing climates, we will probably have lost _____ by the middle of the 21st century.
A. half of polar bears
B. most of polar bears
C. 90% of polar bears
D. all of polar bears
4.We can infer that _____ .
A. nothing can prevent the extinction of polar bears
B. drilling for oil in the Arctic should be encouraged
C. polar bears can surely adapt to changing climates
D. using solar energy is good for saving polar bears
高二英语阅读理解中等难度题
Many people may not believe it, but this is what is happening: polar bears are dying out! They are dying because they are losing a great deal of habitat due to human incursion（侵入）and global warming. They are dying because of starvation as well. With the sea ice they depend on for survival shrinking, it is becoming increasingly difficult for them to find food.
An ecosystem is highly dependent on all of its parts, and removing even a single species can result in serious consequences. Polar bears are at the top of the predators（捕食性动物）where they live. They play an important part in the ecosystem. They feed on seals, fish and deer. Several other animals depend on the kill of polar bears. The failure to save polar bears might result in loss of these predators.
In addition, all large predators perform a very important function in their habitat: helping to control the populations of other species. When an animal group loses its natural predators, its population will rise rapidly, having a direct result in population decrease of other groups. A huge boom in population of Arctic seals would have a direct effect on the prey(捕食) of seals, and could reduce numbers of certain types of fish.
This could also have a direct effect on humans, who might have to compete with Arctic seals for food supplies from fish. Lack of polar bears could eventually affect human food supply. Human beings shall save polar bears to ensure the food supply.
There is no doubt that we should save polar bears. However, there is still another question: can they be saved? This is a matter that scientists debate because of rapid degradation（恶化）of the polar bear’ environment in recent years due to warming temperatures. It is estimated that if the bears cannot adapt to changing climates, they might die out before the end of the 21st century, with about 50% of the animals disappearing by 2050. So time is running out!
There are some things that may help slow down global warming and help delay extinction of polar bears. These include finding new energy sources that don’t give off greenhouse gases and not making any more incursions into polar bear’s territory.
1.Which is NOT the threat to the survival of polar bears according to the passage?
A. Human’s killing. B. Global warming.
C. Habitat loss. D. Lack of food.
2.Why do we need to save polar bears?
A. For the predators in the ecosystem.
B. For the seals in Arctic Circle.
C. For our own source of food.
D. For our environment.
3.If bears can’t adapt to changing climates, we will probably have lost _____ by the middle of the 21st century.
A. half of polar bears
B. most of polar bears
C. 90% of polar bears
D. all of polar bears
4.We can infer that _____ .
A. nothing can prevent the extinction of polar bears
B. drilling for oil in the Arctic should be encouraged
C. polar bears can surely adapt to changing climates
D. using solar energy is good for saving polar bears
高二英语阅读理解中等难度题查看答案及解析
Many people believe that all ice cubes are created equal, but they are not. At least that’s what the folks at California’s Glace Luxury Ice Company would like us to believe. The Davisbased company says that the ice cubes they make are healthier and last longer than the ones that we throw into our drinks on a daily basis. What’s more, the company also says that their ice cubes do mot leave behind an aftertaste(余味)in drinks, like regular ones do.
In order to create these unique ice cubes, Glace Luxury begins with water that has been rid of the hazardous impurities(杂质)that the company says can lead to cancer and exist in regular ice. They then freeze it in large blocks. Once ready, the ice is carved into perfect cubes and each cube measures 2.5 inches across. Besides being healthier, these ice cubes apparently also take longer to melt. The company says that each ice cube can last up to 30 minutes.
Of course, those ice cubes do not come cheap. Those that wish to have a taste of this “tasteless” frozen perfection will have to pay $325USD for a bag of 50 ice cubes. That comes to $6.50USD for a single cube of ice!
The unique product is the brainchild of Robert Sequeira, a former business school lecturer who said that he wanted to establish a profitable business that could be easily scaled. Given that he can make as mush Glace Luxury ice as he needs for as little as $0.12USD per cube, he thinks that the idea certainly meets the standard. Now, if he can find that the few people can afford to buy this Glace Luxury ice, life would be great!
1.People at California’s Glace Luxury Ice Company probably want consumers to believe that _____.
A. ice cubes are healthy for people to use
B. their ice cubes add tastes to drinks
C. all ice cubes are created the same
D. their ice cubes are different
2.What does the underlined word “hazardous” in paragraph 2 mean?
A. Active B. Regular C. Dangerous D .Powerful
3.Compared with regular ice cubes, the ice cubes created by Glace Luxury Ice Company_____.
A. taste much bette
B. look much more beautiful
C. have more different shapes
D. are healthier and melt more slowly
4.What does the author think of the ice cubes created by Glace Luxury Ice Company?
A. They will be a big success
B. They are too costly to make.
C. They are just regular ice cubes.
D. They are too expensive for consumers
高二英语阅读理解中等难度题查看答案及解析
Many people believe that all ice cubes are created equal, but they are not. At least that’s what the folks at California’s Glace Luxury Ice Company would like us to believe. The Davisbased company says that the ice cubes they make are healthier and last longer than the ones that we throw into our drinks on a daily basis. What’s more, the company also says that their ice cubes do mot leave behind an aftertaste(余味)in drinks, like regular ones do.
In order to create these unique ice cubes, Glace Luxury begins with water that has been rid of the hazardous impurities(杂质)that the company says can lead to cancer and exist in regular ice. They then freeze it in large blocks. Once ready, the ice is carved into perfect cubes and each cube measures 2.5 inches across. Besides being healthier, these ice cubes apparently also take longer to melt. The company says that each ice cube can last up to 30 minutes.
Of course, those ice cubes do not come cheap. Those that wish to have a taste of this “tasteless” frozen perfection will have to pay $325USD for a bag of 50 ice cubes. That comes to $6.50USD for a single cube of ice!
The unique product is the brainchild of Robert Sequeira, a former business school lecturer who said that he wanted to establish a profitable business that could be easily scaled. Given that he can make as mush Glace Luxury ice as he needs for as little as $0.12USD per cube, he thinks that the idea certainly meets the standard. Now, if he can find that the few people can afford to buy this Glace Luxury ice, life would be great!
1.People at California’s Glace Luxury Ice Company probably want consumers to believe that _____.
A. ice cubes are healthy for people to use
B. their ice cubes add tastes to drinks
C. all ice cubes are created the same
D. their ice cubes are different
2.What does the underlined word “hazardous” in paragraph 2 mean?
A. Active B. Regular C. Dangerous D .Powerful
3.Compared with regular ice cubes, the ice cubes created by Glace Luxury Ice Company_____.
A. taste much bette
B. look much more beautiful
C. have more different shapes
D. are healthier and melt more slowly
4.What does the author think of the ice cubes created by Glace Luxury Ice Company?
A. They will be a big success
B. They are too costly to make.
C. They are just regular ice cubes.
D. They are too expensive for consumers
高二英语阅读理解中等难度题查看答案及解析
You may have heard some respectable elders say, “It’s not what you want in this world, but what you get.”
Psychology teaches that you do get what you want if you know what you want and want the right things.
You can make a mental blueprint of a desire as you would make a blueprint of a house, and each of us is continually making these blueprints in the general routine of everyday living. If we intend to give a dinner for friends, we plan the menu, make a shopping list, and decide which food to cook first, and such planning is essential and necessary for any type of meal to be served.
Similarly, you can make a blueprint for your could-be-job, take a sheet of paper, and write a brief account of yourself. In making a blueprint for a job, begin with yourself, for when you know exactly what you have to offer, you can intelligently plan where to sell your service.
This account of yourself is actually a description of your working life and should include education, experience and references. Such an account is valuable. It can be referred to filling out standard application blanks and it is extremely helpful in personal interviews. While talking to you, your could-be employer is deciding whether your education, your experience and other qualifications will pay him to employ you, and your abilities must be displayed on an orderly and reasonably connected manner. When you have carefully prepared a blueprint of your abilities and desires, you have something exact to sell. Then you are ready to hunt for a job.
Get all the possible information about your could-be job. Make your eyes and ears open, and use your own judgment. Spend a certain amount of time each day seeking in the employment you wish for, and keep in mind: Obtaining a job is your job now!
1.When the elders say, “It’s not what you want in the world, but what you get”, they mean ______.
A. you will certainly get what you want
B. it’s no use dreaming but be practical
C. you should never be satisfied with what you have
D. it’s essential to be ambitious
2.The blueprint made before inviting a friend to dinner is used as______.
A. a set rule for job hunters
B. a suggestion on how to get a good job
C. an example of how to plan important things ahead
D. a guideline for a job description
3.In the passage, the author mainly intends to point out the importance of ____.
A. writing up a detailed plan for a job interview
B. keeping a blueprint of what you want to do
C. drawing a description of your working life
D. seeking the employment you want
高二英语阅读理解中等难度题查看答案及解析
When it comes to medical care, many patients and doctors believe "more is better." But what they do not realize is that overtreatment-too many scans, too many blood tests, too many procedures-may bring harm. Sometimes a test leads you down a path to more and more testing, some of which may be attacking, or to treatment for things that should be left out.
Terrence Power, for example, complained that after his wife learned she had Wegener's disease, an uncommon disorder of the immune system(免疫系统), they found it difficult to refuse testing recommended by her doctor. The doctor insisted on office visits every three weeks, even when she was feeling well. He frequently ordered blood tests and X-rays, and repeatedly referred her to experts for even minor complaints. Even when tests came back negative, more were ordered, and she was hospitalized as prevention when she caught a cold. She had as many as 25 doctor visits during one six-month period. The couple was spending about $30,000 a year for her care.
After several years of physical suffering and near financial ruin from the medical costs, the couple began questioning the treatment after discussing with other patients in online support groups. "It's a really hard thing to determine when doctors have crossed the line," Mr. Power said. "You think she's getting the best care in the world, but after a while you start to wonder: What is the purpose?" Mr. Power then spoke with his own primary care doctor, who advised him to find a new expert to oversee Mrs. Power's care. Under the new doctor's care, the regular testing stopped and Mrs. Power's condition was stable. Now she sees the doctor only four or five times a year.
1.Which of the following was a problem for Mrs. Power during her medical treatment?
A.She had to be hospitalized for three weeks whenever she had a cold.
B.Her doctor asked her to consult other experts for her complaints.
C.When test results showed she was fine, her doctor still ordered more tests.
D.She did not have any insurance, so she became penniless.
2.When did the Powers start to doubt the treatment of Mrs. Power?
A.After they knew about the treatment of other patients.
B.After they analyzed the results of her blood tests
C.After Mrs power was cured of her illness.
D.After the new expert tested her.
3.Which of the following can replace the underlined word "stable" in the last paragraph?
A.not getting worse B.improper
C.unchangeable D.uncertain
4.What is the main idea of this passage?
A.Treatments do not always cause harmful side effects.
B.Patients tend to believe more testing is better treatment.
C.Doctors generally recommend office visits that are necessary.
D.Too much medical care may not be beneficial to patients.
高二英语阅读理解简单题查看答案及解析
Believe it or not, I am sure that is _______ people call the sixth sense.
A. what B. that C. which D. how
高二英语单项填空中等难度题查看答案及解析
It may not come as a surprise but the world as a whole is getting richer. Some people have more disposable(可支配的) income to spend on luxuries such as holidays, cars, TVs and smartphones. Recent data has shown that the number of people living in extreme poverty(贫穷) has halved in recent decades. So should we celebrate the fact that more of us now have a better standard of living?
Maybe not. Whilst the gap between rich and poor in some countries is narrowing, there is still a lot of inequality in other places-some people have a lot of money and opportunities and others don't. A recent report by Oxfam and Credit Suisse revealed how divided many of us are when it comes to wealth. A lot of the money in the world is in the hands of very few people. In fact, 48% of global wealth is owned by the richest 1% of the population.
But some countries are attempting to reduce this inequality and make the poor, less poor. According to David Bryer from Oxfam, Brazil has been taking "some really sensible measures-measures around having more progressive(逐步发展的) tax, around investing in a higher minimum wage and investing in central public services." Having a higher minimum wage, can help people eat better and seek a better education. And more people with more money buy more things-and factories can produce more. In turn, a factory which produces more will need more workers. So, more jobs are created.
Other wealthy individuals are doing their bit to help reduce inequality. Bill Gates, the founder of Microsoft, earned a lot of money from his company but when he retired, he and his wife Melinda, created a foundation to help the poor. He thinks that rich people should, of course, pay their taxes but he also advises that they should all "look at taking their wealth and being philanthropic, both in their own country and to help the global poorest."
Bill Gates feels that giving money to help poor people is "fulfilling". But if other super-rich people don't want to experience this fulfilment then, according to Oxfam, very soon the wealthiest 1% will soon own more money than the rest of the world's population.
1.According to a recent report by Oxfam and Credit Suisse, .
A. the gap between the rich and the poor is widening gradually
B. increased wealth helps people to reduce the inequality
C. people should be happy about the world’s getting richer
D. a small number of people possesses the major wealth
2.What the author’s attitude towards Brazil’s measures?
A. Cautious B. Approving
C. Doubtful D. Critical
3.What is the meaning of the underlines word “philanthropic”?
A. Merciful B. Responsible
C. Realistic D. Broadminded
4.The author develops the article mainly by .
A. comparing opinions from different fields
B. listing detailed numbers and analyzing them
C. presenting a trend and analyzing its cause and effect
D. presenting research findings and giving some examples
高二英语阅读理解中等难度题查看答案及解析
It may not come as a surprise but the world as a whole is getting richer. Some people have more disposable income to spend on luxuries such as holidays, cars, TVs and smartphones. Recent data has shown that the number of people living in extreme poverty has halved in recent decades. So should we celebrate the fact that more of us now have a better standard of living?
Maybe not. While the gap between rich and poor in some countries is narrowing, there is still a lot of inequality in other places-some people have a lot of money and opportunities and others don’t. A recent report by Oxfam and Credit Suisse revealed how divided many of us are when it comes to wealth. A lot of the money in the world is in the hands of very few people. In fact, 48% of global wealth is owned by the richest 1% of the population.
But some countries are attempting to reduce this inequality and make the poor less poor. According to David Bryer from Oxfam, Brazil has been taking “some really sensible measures-measures around having more progressive tax, around investing in a higher minimum wage and investing in central public services.” Having a higher minimum wage(提高最低工资标准), can help people eat better and seek a better education. And more people with more money buy more things-and factories can produce more. In turn, a factory which produces more will need more workers. So, more jobs are created.
Other wealthy individuals are doing their bit to help reduce inequality. Bill Gates, the founder of Microsoft, earned a lot of money from his company but when he retired, he and his wife Melinda, created a foundation to help the poor. He thinks that rich people should, of course, pay their taxes but he also advises that they should all “look at taking their wealth and being philanthropic, both in their own country and to help the global poorest.”
Bill Gates feels that giving money to help poor people is “fulfilling”. But if other super-rich people don’t want to experience this fulfilment then, according to Oxfam, very soon the wealthiest 1% will soon own more money than the rest of the world’s population. Do you think that is fair?
1.According to a recent report by Oxfam and Credit Suisse, .
A. the gap between the rich and poor is widening gradually
B. increased wealth helps people to reduce the inequality
C. people should be happy about the world’s getting richer
D. a small number of people possess the major world wealth
2.What’s the author’s attitude towards Brazil’s measures?
A. Cautious B. Approving
C. Doubtful D. Critical
3.What is the meaning of the underlined word “philanthropic” in Paragraph 4?
A. Broadminded B. Responsible
C. Realistic D. Merciful
4.The author develops the article mainly by .
A. comparing opinions from different fields
B. listing detailed numbers and analyzing them
C. presenting research findings and giving some examples
D. presenting a trend and analyzing its cause and effect
高二英语阅读理解中等难度题查看答案及解析
Bamboo is one of the nature’s most surprising plants. Many people call this plant a tree, but it is a kind of grass.
Like other kinds of grass, a bamboo plant may be cut very low to the ground, but it will grow back very quickly. A Japanese scientist recorded one bamboo plant that grew almost 1.5 meters in 24 hours! Bamboo grows almost everywhere in the world except Europe. There are more than 1,000 kinds of bamboo that grow around the world on both mountains and plains.
Not all bamboo looks the same. Some bamboo plants are very thin. They may only grow to be a few centimeters wide while others may grow to more than 30 centimeters across. This plant also comes in different colors, from yellow to black to green.
Many Asian countries have been using bamboo for hundreds of years. They often use bamboo for building new buildings. As a matter of fact, the cables(绳索) that hold up the hanging bridge across the Min River in Sichuan are made of bamboo. The bridge has been in use for more than 1,000 years, and is still holding strong.
In Africa, engineers are teaching poor farmers how to find water using bamboo. These African countries need cheap ways to find water because they have no money, and their fields often die from no rain and no water. It seems that bamboo is one of the best things they can use. Bamboo pipes and drills(钻) can help to make the poor thirsty fields to be watered.
1.How is bamboo like grass?
A．It is thin and easy to cut. B．It grows everywhere.
C．It grows quickly after its cut short. D．It is short and green.
2.The underlined sentence “while others may grow to more than 30 centimeters across.” means “Some other bamboo plants may grow to be very _______.”
A．short B．strong C．thick D．tall
3.From the text we know ______.
A．most people call bamboo plant trees
B．a bamboo plant may grow 4.5 meters in three days
C．the bamboo plant changes its colors when it grows
D．a bridge held by bamboo cable was built thousands of years ago
4.Why did the engineers teach the poor farmers in Africa to make use of bamboo?
A．Because it is cheap. B．Because it is colorful.
C．Because it drills fast. D．Because it is used by Asians.
5.Which of the following is NOT true?
A．There are many different kinds of bamboo with different colors.
B．Cables made of bamboo can last for over a thousand years.
C．Bamboo can be used for buildings, bridges and watering projects.
D．Bamboo plants are able to grow well in any part of the world.
高二英语阅读理解中等难度题查看答案及解析
It is not who is right but what is right ___ is of importance.
| A．which | B．it | C．that | D．this |
高二英语单项填空中等难度题查看答案及解析