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The development of pills often owe ________ to science-we started with a drug that we hoped would be effective in heart disease and we ended up with a medicine that was highly effective against nerve disorder.
A.much chance B.much chance as C.much to chance as D.as much to chance as
高二英语单项填空中等难度题查看答案及解析
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The child of today owes much of its pleasant school life to the work of Maria Montessori and others who felt as she did．
Maria Montessori was born in 1870 in northern Italy． Both her parents were well educated．
While Maria was a student, she took great interest in the study of the particular nature of the child's mind． It came to her that small children should have freedom to learn．
Maria became a doctor and a professor at Rome University．In 1907, after working with backward students, she was given a chance to try out her ideas on children．There were sixty children, aged three to six, in the Children's House．The rooms were bright and colorful．Maria let the children make their own choice of what they wanted to do and work with their own speed． They became busy, peaceful and happy．
Maria Montessori was one of the world's great teachers．She traveled in Europe, America and Far East．She thought that true education, providing(提供) for the real needs of the child, would produce wise and happy grown-ups and therefore a peaceful world． Her original way of education has changed our whole idea of what childhood is．
Maria Montessori died in Holland at the age of eighty-two．
1.The short passage is mainly about_________．
A． the education of backward students
B． a new idea of education
C． the importance of proper education
D． the life of Maria Montessori
2.Maria traveled a lot in the world to ________．．
A． teach the backward students
B． enjoy her life in real nature
C． spread her ideas of teaching
D． study the situation of education
3.In what way did Maria teach the children in the Children's House?
A． She taught them the best way of learning well．
B． She let them learn in a very pleasant way．
C． She taught them by showing them how to do things．
D． She just let them choose the most interesting subjects．
4.We learn from the passage that ________．
A． Maria left her homeland in order to study abroad
B． Maria didn't get married
C． Maria's own parents were her teachers
D． Maria fully understood the child's mind
高二英语阅读理解中等难度题查看答案及解析
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Under the agreement, China will _________ hundreds of millions of pounds in debts owed to it by some of the world’s poorest countries. What a relief for them!
A. sack B. conduct C. assess D. cancel
高二英语单项填空中等难度题查看答案及解析
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The winner of the Grand Slams said that he had owed his success to many people, his parents_________.
A. after all B. by chance
C. on purpose D. in particular
高二英语单项填空困难题查看答案及解析
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People often have this belief ___development is bad for the environment, but this does not have to be true.
A which B whose C that D when
高二英语简单题查看答案及解析
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The scientific world continues to be amazed by the speed of the development of cloning. Some scientists now suggest that the cloning of humans could occur in the near future. Despite the benefits of cloning, however, certain ethical (道德的) questions concerning the possible abuse (滥用) of cloning have been raised. At the heart of these questions is the idea of humans influencing life in a way that could harm society, either morally or in a real physical sense. Some people object to cloning because it allows scientists to "act like God" in the handling of living organisms.
The cloning of Dolly raised the debate over this practice to a whole new level. It has become obvious that the technology for cloning Dolly could also be used to clone humans. A person could choose to make two or ten or a hundred copies of himself or herself by the same techniques used with Dolly. An active debate about the morality of cloning humans arises. Some people see benefits from the practice, such as providing a way for parents to produce a new child to replace one dying of a fatal disease. Other people worry about humans taking into their own hands the future of the human race.
At the beginning of the twenty-first century, many scientists say the controversy over the ethics of cloning humans is overstressed because of the unpredictability (不可预测性) of cloning in general. While scientists have cloned animals such as sheep, mice, cows, pigs, and goats, fewer than 3 percent of all those cloning efforts have succeeded. The animal clones that have been produced often have health problems. Scientists believe the rapid reprogramming in cloning can introduce random (任意的) errors into a clone’s DNA. Those errors have altered individual genes in minor ways, and the genetic defects (缺陷) have led to the development of major medical problems. Some scientists say this should make human cloning out of the question, but others argue that cloning humans may actually be easier and safer than cloning animals. Whatever, I agree that further research in the field of cloning is needed.
1.Some people are against cloning of humans because they think _________.
A．the practice takes too much time and money B．the cloning technology is still not mature C．humans control the future of the human race D．the population in the world will be too large
2.Some scientists think the debate over ethics of cloning humans is overstressed because ____.
A．cloning of human beings is completely impossible B．the result of cloning can’t be predicted in general C．cloning of animals is a failure D．there are big errors in a clone’s DNA
3.We can learn from the text that _______.
A．cloning of humans is a very controversial issue B．the cloning of Dolly begins to raise the debate over cloning of humans C．there are medical problems in cloning animals D．cloning humans is easier and safer than cloning animals
4.The text is mainly about _______.
A．the benefits of cloning B．the ethics of cloning C．the history of cloning D．the defects of cloning
高二英语阅读理解中等难度题查看答案及解析
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During the early years of American settlement, a new form of English was beginning to develop in the islands of the West Indies and the southern part of the mainland, spoken by the black population. The beginning of the seventeenth century saw the happening of the slave trade. Ships from Europe travelled to the West African coast, where they exchanged cheap goods for black slaves. The slaves were shipped in terrible conditions to the Caribbean islands and the American coast, where they were in turn exchanged for such products as sugar and molasses(糖蜜). The ships then returned to England, completing an “Atlantic triangle”of journeys, and the process began again. Britain and the United States had outlawed the slave trade by 1865, but by that time, nearly 200 years of trading had taken place. By the middle of the nineteenth century, there were over four million black slaves in America.
The policy of the slave-traders was to bring people of different language backgrounds together in the ships, to make it difficult for groups to plan rebellion. The result was the growth of several pidgin (混杂语言) forms of communication, and in particular a pidgin between the slaves and the sailors many of whom spoken English. Once arriving in the Caribbean, this pidgin English continued to act as a major means of communication between teh black population and the new landowners, and among the blacks themselves. Then, when children came to be born, the pidgin became their mother tongue, thus producing the first black Creole(克里奥尔语) speech in the region. This Creole English rapidly came to be used throughout the cotton plantations (种植园), and in the coastal towns and islands.
1.Which of the following shows the route of slave trade correctly?
A．Europe
West African coastthe Caribbean islands and the American coastEuropeB．Europe
West African coastEuropethe Caribbean islands and the American coastC．West African coast
Europethe Caribbean islands and the American coastEuropeD．West African coast
Europethe Caribbean islands and the American coast
West African coast2.It can be inferred that the slaves in the same ship ____.
A．didn’t communicate with each other
B．could understand several languages
C．spoke different languages
D．came from the same place
3.Creole speech comes from _____.
A．Spanish and English
B．English and an African language
C．a European language and an American language
D．an African language and an American language
4.What is the text mainly about?
A．The history of slave trade. B．“Atlantic triangle” of journeys.
C．Languages spoken in America D．The birth of black English
高二英语阅读理解中等难度题查看答案及解析
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The invention of the Internet has ________ a lot to the development of the world.
A. turned B. contributed
C. constructed D. exposed
高二英语单项填空中等难度题查看答案及解析
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３１ｓｔ Ｏｃｔｏｂｅｒ —— A team of British explorers has announced they are going to the North Pole to measure the ice cap’s thickness. The exploration will take ground-based readings (仪表的读数) of an ice formation which most scientists agree is shrinking at an alarming rate.
Explorer Pen Hadow’s three-member team will pull a sled-fixed radar device, which measures ice density every eight centimeters, 2,000 kilometers across the Arctic and will produce millions of readings.
They will leave in February, 2008 and will face temperatures of -50℃ on a journey that will take up to 120 days. They have been testing their equipment in Britain and Canada.
Hadow is excited about the prospects (前景), “For the first time we will be able to transmit video images — webcam film of the expedition — as it unfolds so people can track us, and the whole idea is to engage as many people as we can in what we’re doing.”
New fallen snow on top of the ice makes ground-based measurements more accurate than satellite data.
“It has been in the planning stage for a while,” said Hadow. “We spent the last two years developing impulse radar (冲击雷达), which normally is about 100 kilograms and hangs under an aircraft and so on. We’ve managed to get it down to about 4 kilograms. It’s the size of a briefcase and we are dragging it behind the sled as we go.”
The ice cap shrank enough in 2007 so that a pathway through the cap known as the Northwest Passage opened up during the melting of the Arctic summer.
Cambridge University’s Joao Rodrigues explains, “Thickness of the ice cap will determine how much solar radiation will be reflected and the heat exchange between the ocean and the atmosphere and it is thus a vital component (成分) of climate models.”
If warming trends continue, some experts predict that the Arctic Ocean could be ice-free during the summer within a few decades.
1.What would be the best title for the text?
A. Exploration to the North Pole.
B. Arctic ice cap shrinking.
C. Arctic ice survey announced.
D. Ground-based measurements of ice.
2.What is special about the exploration?
A. It will be broadcast live on the Internet.
B. Explorers will use a sled-fixed radar device.
C. Explorers will travel in extremely cold conditions.
D. Ground-based measurements are more accurate.
3.What is the purpose of the exploration?
A. To measure the ice cap’s thickness.
B. To study whether ice will disappear in the Arctic.
C. To make a film about the Arctic exploration.
D. To make people interested in what they are doing.
4.It can be inferred from the passage that ________.
A. ice in the Arctic will disappear in ten years
B. the exploration will last for half a year
C. Hadow spent two years developing a kind of radar, which is about 100 kilograms
D. if there is snow on ice, satellites can’t measure the ice thickness accurately enough
5.From the passage, we learn that ________.
A. the explorers will measure ice density every other centimeter
B. people will be able to follow the explorers and see what they are doing
C. people could go through the Northwest Passage in the 2007 Arctic summer
D. the equipment that Hadow’s team use will be tested in the United States
高二英语阅读理解中等难度题查看答案及解析
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31st October —— A team of British explorers has announced they are going to the North Pole to measure the ice cap’s thickness. The exploration will take ground-based readings (仪表的读数) of an ice formation which most scientists agree is shrinking at an alarming rate.
Explorer Pen Hadow’s three-member team will pull a sled-fixed radar device, which measures ice density every eight centimeters, 2,000 kilometers across the Arctic and will produce millions of readings.
They will leave in February, 2008 and will face temperatures of -50℃ on a journey that will take up to 120 days. They have been testing their equipment in Britain and Canada.
Hadow is excited about the prospects (前景), “For the first time we will be able to transmit video images — webcam film of the expedition — as it unfolds so people can track us, and the whole idea is to engage as many people as we can in what we’re doing.”
New fallen snow on top of the ice makes ground-based measurements more accurate than satellite data.
“It has been in the planning stage for a while,” said Hadow. “We spent the last two years developing impulse radar (冲击雷达), which normally is about 100 kilograms and hangs under an aircraft and so on. We’ve managed to get it down to about 4 kilograms. It’s the size of a briefcase and we are dragging it behind the sled as we go.”
The ice cap shrank enough in 2007 so that a pathway through the cap known as the Northwest Passage opened up during the melting of the Arctic summer.
Cambridge University’s Joao Rodrigues explains, “Thickness of the ice cap will determine how much solar radiation will be reflected and the heat exchange between the ocean and the atmosphere and it is thus a vital component (成分) of climate models.”
If warming trends continue, some experts predict that the Arctic Ocean could be ice-free during the summer within a few decades.
１ What would be the best title for the text?
A. Exploration to the North Pole.
B. Arctic ice cap shrinking.
C. Arctic ice survey announced.
D. Ground-based measurements of ice.
２. What is special about the exploration?
A. It will be broadcast live on the Internet.
B. Explorers will use a sled-fixed radar device.
C. Explorers will travel in extremely cold conditions.
D. Ground-based measurements are more accurate.
３. What is the purpose of the exploration?
A. To measure the ice cap’s thickness.
B. To study whether ice will disappear in the Arctic.
C. To make a film about the Arctic exploration.
D. To make people interested in what they are doing.
４. It can be inferred from the passage that ________.
A. ice in the Arctic will disappear in ten years
B. the exploration will last for half a year
C. Hadow spent two years developing a kind of radar, which is about 100 kilograms
D. if there is snow on ice, satellites can’t measure the ice thickness accurately enough
５. From the passage, we learn that ________.
A. the explorers will measure ice density every other centimeter
B. people will be able to follow the explorers and see what they are doing
C. people could go through the Northwest Passage in the 2007 Arctic summer
D. the equipment that Hadow’s team use will be tested in the United States
高二英语阅读理解简单题查看答案及解析
West African coast
West African coast