Just as the world’s most respected scientific bodies have confirmed that the world is getting hotter, they have also stated that there is strong evidence that humans are driving the warming. Countless recent reports from the world’s leading scientific bodies have said the same thing. For example, a 2010 summary of climate science by the Royal Society stated that: “There is strong evidence that the warming of the Earth over the last half-century has been caused largely by human activity.”
The idea that humans could change the planet’s climate may be counter-intuitive (与直觉不符的), but the basic science is well understood. Each year, human activity causes billions of tons of greenhouse gases to be released (释放) into the atmosphere. As scientists have known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.
Of course, the planet’s climate has always been changing thanks to “natural” factors such as changes in solar or volcanic activity, or cycles relating the Earth’s going around the sun. According to the scientific literature, however, the warming recorded to date matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere – not the warming we would expect from other possible causes.
Even if scientists did discover another reasonable explanation for the warming observed so far, that would beg a difficult question. As Robert Henson puts it in The Rough Guide to Climate Change: “If some newly discovered factor can account for the climate change, then why can’t carbon dioxide and the other greenhouse gases?
The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.
1.In most scientists’ opinion, the global warming is mainly caused by ____ .
A. solar activity
B. volcanic activity
C. the Earth’s going around the sun
D. human activity
2.The text is developed by ____ .
A. giving typical examples
B. following the order of space
C. analyzing a theory and arguing it
D. comparing and finding differences
3.The underline word “identical” means ____ .
A. totally different B. exactly the same
C. extremely important D. relatively independent
高二英语阅读理解中等难度题
Just as the world’s most respected scientific bodies have confirmed that the world is getting hotter, they have also stated that there is strong evidence that humans are driving the warming. Countless recent reports from the world’s leading scientific bodies have said the same thing. For example, a 2010 summary of climate science by the Royal Society stated that: “There is strong evidence that the warming of the Earth over the last half-century has been caused largely by human activity.”
The idea that humans could change the planet’s climate may be counter-intuitive (与直觉不符的), but the basic science is well understood. Each year, human activity causes billions of tons of greenhouse gases to be released (释放) into the atmosphere. As scientists have known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.
Of course, the planet’s climate has always been changing thanks to “natural” factors such as changes in solar or volcanic activity, or cycles relating the Earth’s going around the sun. According to the scientific literature, however, the warming recorded to date matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere – not the warming we would expect from other possible causes.
Even if scientists did discover another reasonable explanation for the warming observed so far, that would beg a difficult question. As Robert Henson puts it in The Rough Guide to Climate Change: “If some newly discovered factor can account for the climate change, then why can’t carbon dioxide and the other greenhouse gases?
The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.
1.In most scientists’ opinion, the global warming is mainly caused by ____ .
A. solar activity
B. volcanic activity
C. the Earth’s going around the sun
D. human activity
2.The text is developed by ____ .
A. giving typical examples
B. following the order of space
C. analyzing a theory and arguing it
D. comparing and finding differences
3.The underline word “identical” means ____ .
A. totally different B. exactly the same
C. extremely important D. relatively independent
高二英语阅读理解中等难度题查看答案及解析
It’s true that quite a few most respected scientific authorities have confirmed that the world is becoming hotter and hotter. There’s also strong evidence that humans are contributing to the warming. Countless recent reports have proved the same thing. For instance, a 2010 summary about the climate science by the Royal Society noted that: “The global warming over the last half-century has been caused mainly by human activity.”
You may not believe that humans could change the planet’s climate, but the basic science is well understood. Each year, billions of tons of greenhouse gases are released into the atmosphere because of human activity. As has been known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible (看不见的) blanket.
Of course, the earth’s climate has always been changing due to “natural” factors such as volcanic eruption or changes in solar, or cycles concerning the Earth’s going around the sun. According to the scientific research, however, the warming observed by now matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere – not the warming we would expect from other possible causes.
Even if scientists did discover another reasonable explanation for the warming recorded so far, that would give birth to a difficult question. As Robert Henson puts it: “If some newly discovered factor is to blame for the climate change, then why aren’t carbon dioxide and the other greenhouse gases producing the warming that basic physics tells us they should be?”
The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.
1.In most scientists’ opinion, the global warming is mainly caused by ________.
A.solar activity B.volcanic activity
C.natural factors D.human factors
2.The text is developed by ________.
A.giving typical examples
B.following the order of space
C.analyzing a theory and arguing it
D.comparing and finding differences
3.The underline word “identical” in the last paragraph probably means ________.
A.totally different B.exactly the same
C.extremely important D.partly independent
4.Which of the following is not the cause of climate change?
A.volcanic eruption
B.cycles concerning the Earth’s going around the sun
C.changes in solar
D.floods and droughts
5.Which of the following can be the best title?
A.Are All the Scientists Really Scientific?
B.Where Is Global Warming Leading Us to?
C.Are Humans Definitely Causing Global Warming?
D.What’s the Relation of Global Warming and Greenhouse Gases?
高二英语阅读理解中等难度题查看答案及解析
Liu Xiang earned the respect from the whole world as he hopped down the track to the finishing line, ____ the last hurdle.
A. kissed B. to kiss C. having kissed D. kissing
高二英语单项填空中等难度题查看答案及解析
______ to caring for the poor, Mother Teresa is greatly respected throughout the world.
A. Having fully devoted B. Having been fully devoted
C. To have fully devoted D. Being fully devoted to
高二英语单项填空中等难度题查看答案及解析
Most Americans have great respect for their flag and every school day begins with the Pledge of Allegiance to the Stars and Stripes. Written in 1892, this pledge is recited in schools before classes begin and it serves as a sign of unity and identity for the various groups of people who have come from so many different lands and cultures.
Students stand at attention with their right hand over their heart, face the flag which is displayed in the classroom before them and begin, “I pledge allegiance to the flag of the United States of America.” Even the immigrants who come from distant lands must recite this pledge to the flag when they become eligible for citizenship.
The American flag is also known as “Old Glory” and over the years has evolved to its present form of fifty stars and thirteen stripes. The stars represent the fifty states and the stripes stand for the original thirteen colonies.
The first version of the flag with its stars and stripes appeared in 1777, but only had thirteen stars. As each new state joined the union, a new star was added. The last star to be added was in 1960 after Hawaii became the fiftieth state. In the future if another state joins the Union, another star will be added to the field of blue. The number of stripes, however, remains consistent and never changes.
The design of the flag may have altered over the years, but the colors, red, white and blue, have remained constant. In 1782 the Congress of the United States proclaimed that red stood for hardiness and courage, white stood for purity and innocence, and blue for justice and perseverance.
It was the flag which inspired the creation of the national anthem: “The Star Spangled Banner” in 1812. President Wilson in 1916 and later President Coolidge in 1927 suggested in proclamations to fellow countrymen that a special day be set aside to honor the flag. In 1949 the American Congress gave official recognition of June 14 as Flag Day.
1.According to the passage which of the following statements is NOT true?
A.The Pledge of Allegiance was written in 1892. |
B.Another name of the American flag is “Old Glory” or “The Stars and Stripes”. |
C.The design of the flag has stayed the same over the years. |
D.June 14 was set aside as Flag Day to honor the flag from 1949 on. |
2.What is the purpose of the Pledge of Allegiance?
A.It opens the school day. | B.It is recited in all schools. |
C.It is a sign of unity and nationalism. | D.It makes someone eligible for citizenship. |
3.What do the fifty stars on the flag represent?
A.Purity and innocence. | B.Truth and honesty |
C.Bravery and courage | D.The fifty states. |
4.The colors of the American flag ________.
A.have changed from time to time. | B.have always been red, white and blue. |
C.used to be only red and white. | D.used to be red and blue. |
5.The best title of the passage would be ________.
A.“Old Glory”: the American Flag | B.The Pledge of Allegiance |
C.American National Anthem | D.Flag Day |
高二英语阅读理解中等难度题查看答案及解析
Behind most of the bad things we do to our bodies as adults, eating more than we should is the idea we carry with us from childhood. On one hand, we assume that we are indestructible. On the other hand, we think that any damage we impose on ourselves can be undone when wβfinally clean up our act.
If the evidence for how wrong the first idea is isn’t apparent when you stand naked in front of the mirror, just wait. But what if you eat right and drop all your bad habits? Is there still time to repair the damage?
To a surprising degree, the answer is yes. Over the past five years, scientists have collected a wealth of data about what happens when aging people with bad habits decide to turn their lives around.
The heartening conclusion: the body has an amazing ability to heal itself, provided the damage is not too great.
The effects of some bad habits-smoking, in particular-can haunt you for decades. But the damage from other habits can be largely healed.
“Any time you improve your behavior and make lifestyle changes, they make a difference from that point on.”says Dr. Jeffey Koplan.“Maybe not right away. It’s like slamming on the brakes. You do need a certain distance.”
But the distance can be remarkably short. Consider the recent announcements from the front lines of medical research: ---A study concluded that women who consume as little as two servings of fish a week cut their risk of suffering a stroke to half that of women who eat less than one serving of fish a month. ---The day you quit smoking, the carbon monoxide levels in your body drop dramatically. Within weeks, your blood becomes less sticky and your risk of dying from a heart attack starts to decline ... Adopting healthy habits won’t cure all that bothers you, of course. But doctors believe that many chronic diseases-from high blood pressure to heart disease and even some cancers-can be warded off with a few sensible changes in lifestyle.
Not sure where to start? Surprisingly, it doesn’t matter, since one positive change usually leads to another. Make enough changes, and you'll discover you’ve adopted a new way of life.
1.Most people with bad habits of eating more than they should believe that .
A.their bodies cannot be damaged by the bad habits
B.they can force themselves to clean up the had habits later
C.their bodies can heal all the damage without the help from outside
D.they can never change the habits that have developed for decades
2.The evidence against the assumption that we are indestructible .
A.is seldom apparent B.is clearly shown in the mirror
C.is still a question D.will appear obvious sooner or later
3.According to the recent announcements .
A.women should eat as much fish as possible
B.men don’t have to eat as much fish as women
C.eating a little more fish can improve women’s health
D.women are at a higher risk of suffering a stroke than men
4.It is implied in the passage that .
A.the blood of smokers is more sticky than that of non-smokers
B.chronic diseases can be cured ifwe drop our habit of smoking
C.smokers have lower levels of carbon monoxide than non-smokers
D.smokers will be unlikely to die from heart attack if they quit smoking
高二英语阅读理解中等难度题查看答案及解析
Behind most of the bad things we do to our bodies as adults, eating more than we should is the idea we carry with us from childhood. On one hand, we assume that we are indestructible. On the other hand, we think that any damage we impose on ourselves can be undone when wβfinally clean up our act.
If the evidence for how wrong the first idea is isn’t apparent when you stand naked in front of the mirror, just wait. But what if you eat right and drop all your bad habits? Is there still time to repair the damage?
To a surprising degree, the answer is yes. Over the past five years, scientists have collected a wealth of data about what happens when aging people with bad habits decide to turn their lives around.
The heartening conclusion: the body has an amazing ability to heal itself, provided the damage is not too great.
The effects of some bad habits-smoking, in particular-can haunt you for decades. But the damage from other habits can be largely healed.
“Any time you improve your behavior and make lifestyle changes, they make a difference from that point on.”says Dr. Jeffey Koplan.“Maybe not right away. It’s like slamming on the brakes. You do need a certain distance.”
But the distance can be remarkably short. Consider the recent announcements from the front lines of medical research: ---A study concluded that women who consume as little as two servings of fish a week cut their risk of suffering a stroke to half that of women who eat less than one serving of fish a month. ---The day you quit smoking, the carbon monoxide levels in your body drop dramatically. Within weeks, your blood becomes less sticky and your risk of dying from a heart attack starts to decline ... Adopting healthy habits won’t cure all that bothers you, of course. But doctors believe that many chronic diseases-from high blood pressure to heart disease and even some cancers-can be warded off with a few sensible changes in lifestyle.
Not sure where to start? Surprisingly, it doesn’t matter, since one positive change usually leads to another. Make enough changes, and you'll discover you’ve adopted a new way of life.
1.Most people with bad habits of eating more than they should believe that .
A. their bodies cannot be damaged by the bad habits
B. they can force themselves to clean up the had habits later
C. their bodies can heal all the damage without the help from outside
D. they can never change the habits that have developed for decades
2.The evidence against the assumption that we are indestructible .
A. is seldom apparent B. is clearly shown in the mirror
C. is still a question D. will appear obvious sooner or later
3.According to the recent announcements .
A. women should eat as much fish as possible
B. men don’t have to eat as much fish as women
C. eating a little more fish can improve women’s health
D. women are at a higher risk of suffering a stroke than men
4.It is implied in the passage that .
A. the blood of smokers is more sticky than that of non-smokers
B. chronic diseases can be cured ifwe drop our habit of smoking
C. smokers have lower levels of carbon monoxide than non-smokers
D. smokers will be unlikely to die from heart attack if they quit smoking
高二英语阅读理解中等难度题查看答案及解析
A small group of people around the world have started implanting(移植) microchips to link the body and the computer.
Mr. Donelson and three friends, who had driven 100 miles from their homes in Loockport, New York, to have the implants put in by Dr. Jesse Villemaire, whom they had persuaded to do the work, are part of a small group, about 30 people around the world, who have independently put in microchips into their bodies, according to Web-based reports.
At a shop William Donelson was having a four-millimeter-wide needle put into his left hand. “I’m set,”he said with a deep breath. He watched as the needle pierced(刺穿) the fleshy webbing between his thumb and a microchip was set under his skin. At last he would be able to do what he had long imagined: strengthen his body’s powers through technology.
By putting the chip inside—a radio frequency identification device (RFID)—Mr. Donelson would have at his fingertips the same magic that makes safety gates open with a knock of a card, and bridge and tunnel traffic flow smoothly with an E-Zpass. With a wave of his hand he plans to connect with his computer, open doors and unlock his car.
Implanting the chip was relatively simple task but very meaningful to Mr. Doneselson, a 21-year-old computer networking student so interested in the link between technology and the body that he has data-input jacks(数据输入插空) inside his body. They might lead to an imagined future when people can be connected directly into computers. His new chip is enclosed in a glass container no bigger than a piece of rice and has a small memory where he has stored the words “Technology”.
Some doctors have done the piercing in people’s homes, and others have implanted chips in their offices after patients signed forms showing the fact that long-term studies have not been done on their safety. Piercers treat the implants much like any other medical operation steps, instructing people to keep the site dry, and advising them that swelling and redness should last a week.
1.With a RFID implanted, which of the following will Mr. Donelson be able to do?
A. Make a safety gate open with a knock of a card.
B. Make bridge and tunnel traffic flow smoothly with an E-Zpass.
C. Open doors and unlock his car with a wave of his hand.
D. Turn his body and brain directly into computers.
2. The underlined word “they” in paragraph 5 refer to “___________”.
A. glass containers
B. implanted computer chips
C. data input jacks
D. computer and networking students
3. Which of the following would be the best title for the passage?
A. High Tech, Under the Skin
B. A Needle, So Magic
C. Donelson, a Powerful Man
D. Data-input Jacks, Inside the Body
4.We can conclude from the passage that __________________.
A. Mr. Donelson has made a large sum of money by the piercing.
B. the Piercers are people working in the computer field
C. the piercing has no side effect and it will make people intelligent
D. the long term effects of these implants are not yet known
5.What will happen to the site on the body after the operation?
A. There will be swelling and redness.
B. The site will be dry.
C. Nothing will happen at all.
D. The pain will remain for a week.
高二英语阅读理解中等难度题查看答案及解析
It just may be the world’s most costly vacuum cleaner ( 吸尘器). The price of CleanSpace One is eleven million dollars. But yet, it has a big job to do. Recently, researchers in Switzerland said they planned to build this new cleaning machine.
CleanSpace One will not be for use in homes or businesses. It will be shot into space to help remove thousands of pieces of space junk floating around up there.
Last year, we reported on the problem of space junk. Over time, many unused spacecraft have hit each other far above the Earth. Big pieces break into thousands of small pieces. Sometimes they fall back into the atmosphere (大气层) and burn up. But when they do not, it creates big problems.
Scientists fear that if something is not done to remove these objects, it may soon become too dangerous to send people and machines into space. There is a large chance that they might hit some of this junk. So that is why the Swiss researchers are developing the new machine.
CleanSpace One is not really a vacuum cleaner. It will not be used to take away space junk. But scientists plan to move it close to an old satellite that is no longer being used. Then a claw-like instrument will catch the satellite, and force it back through the atmosphere. There, the satellite will be destroyed by the heat of friction (摩擦) with the air.
Researchers say that all they need to do is slow down the speed of some of these unwanted objects. Once they begin to move more slowly, they will fall back to the Earth. There is little chance that they will fall through the atmosphere and harm the people or things below.
1.Space junk is created when .
A. unused spacecraft hit each other
B. people in space throw away rubbish
C. a new spaceship is sent up
D. an old spaceship creates friction with the air
2.What’s the danger of space junk?
A. It will pollute space.
B. It will hurt people on the Earth.
C. It will hit a spaceship.
D. It will burn in the atmosphere.
3.Unwanted objects will fall back to the Earth when .
A. they are made to move slowly
B. they meet other objects in space
C. they are not used for years
D. they are near the atmosphere
4.The passage is most probably a .
A. science research paper B. science fiction story
C. newspaper ad D. science news report
高二英语阅读理解中等难度题查看答案及解析
Malaria, the world's most widespread parasitic(寄生虫引起的) disease, kills as many as three million people every year—almost all of whom are under five, very poor, and African.In most years, more than five hundred million cases of illness result from the disease, although exact numbers are difficult to assess because many people don't (or can't) seek care.It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment, and what they often get no longer works.In countries like Tanzania, Mozambique, and the Gambia, no family, village, hospital, or workplace can remain unaffected for long.
Malaria starts suddenly, with violent chills, which are soon followed by an intense fever and, often, headaches.As the parasites multiply, they take over the entire body.Malaria parasites live by eating the red blood cells they infect (感染).They can also attach themselves to blood vessels in the brain.If it doesn't kill you, malaria can happen again and again for years.The disease passed on to humans by female mosquitoes infected with one of four species of parasite.Together, the mosquito and the parasite are the most deadly couple in the history of the earth—and one of the most successful.Malaria has five thousand genes, and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control.Studies show that mosquitoes are passing on the virus more frequently, and there are more outbreaks in cities with large populations.Some of the disease's spread is due to global warming.
For decades, the first-choice treatment for malaria parasites in Africa has been chloroquine, a chemical which is very cheap and easy to make.Unfortunately, in most parts of the world, malaria parasites have become resistant to it.Successful alternatives that help prevent resistance are already available, but they have been in short supply and are very expensive.If these drugs should fail, nobody knows what would come next.
1.According to paragraph 1, many people don't seek care because___.
A.they are too poor
B.it is unusual to seek care
C.they can remain unaffected for long
D.there are too many people suffering from the disease
2.People suffering from malaria___.
A.have to kill female mosquitoes B.have ability to defend parasites
C.have their red blood cells infected D.have sudden fever, followed by chills
3.Which of the following may be the reason for the wide spread of the disease?
A.Its resistance to global warming.
B.Its ability to pass on the virus frequently.
C.Its outbreaks in cities with large populations.
D.Its ability to defend itself and resist new drugs.
4.It can be inferred from the passage that___.
A.no drugs have been found to treat the disease
B.the alternative treatment is not easily available to most people
C.malaria has developed its ability to resist parasites
D.nobody knows what will be the drug to treat the disease
5.Which of the following questions has NOT been discussed in the passage?
A.How can we know one is suffering from malaria?
B.How many people are killed by malaria each year?
C.Why are there so many people suffering from malaria?
D.What has been done to keep people unaffected for long?
高二英语阅读理解中等难度题查看答案及解析