The temperature of the sun is over 5,000 degrees Fahrenheit at the surface, but it rises to perhaps more than 16 million degrees at the center. The sun is so much hotter than the earth that matter can exist only as a gas, except at the core(核心). In the core of the sun, the pressures are so great against the gases that, despite the high temperature, there may be a small solid core. However, no one really knows, since the center of the sun can never be directly observed.
Solar astronomers do know that the sun is divided into five layers or zones. Starting at the outside and going down into the sun, the zones are the corona, chromosphere, photosphere, convection zone and finally the core. The first three zones are regarded as the sun’s atmosphere. But since the sun has no solid surface, it is hard to tell where the atmosphere ends and the main body of the sun begins.
The sun’s outermost layer begins about 10,000 miles above the visible surface and goes outward for millions of miles. This is the only part of the sun that can be seen during an eclipse (日食) such as the one in February 1979. At any other time, the corona can be seen only when special instruments are used on cameras and telescopes to shut out the glare(刺眼的强光)of the sun’s rays.
The corona is a brilliant, pearly white, filmy light, about as bright as the full moon. Its beautiful rays are a sensational sight during an eclipse. The corona’s rays flash out in a brilliant fan that has wispy spikelike (一束束穗状) rays near the sun’s north and south poles. The corona is thickest at the sun’s equator.
The corona rays are made up of gases streaming outward at tremendous speeds and reaching a temperature of more than 2 million degrees Fahrenheit. The rays of gas thin out as they reach the space around the planets. By the time the sun’s corona rays reach the earth, they are weak and invisible.
1.Matter on the sun can exist only in the form of gas because of the sun’s ______.
A. size B. age
C. location D. temperature
2.With what topic is the second paragraph mainly concerned?
A. How the sun evolved.
B. The structure of the sun.
C. Why scientists study the sun.
D. The distance of the sun from the planets.
3.All of the following are parts of the sun’ s atmosphere EXCEPT the _______.
A. corona B. chromosphere
C. photosphere D. core
4.The paragraph following the passage most likely discusses which of the following?
A. The remaining layers of the sun.
B. The evolution of the sun to its present form.
C. The eclipse of February 1979.
D. Scientists will cost more money on researching the corona.
高一英语阅读理解中等难度题
The temperature of the sun is over 5,000 degrees Fahrenheit at the surface, but it rises to perhaps more than 16 million degrees at the center. The sun is so much hotter than the earth that matter can exist only as a gas, except at the core. In the core of the sun, the pressures are so great against the gases that, despite the high temperature, there may be a small solid core. However, no one really knows, since the center of the sun can never be directly observed.
Solar astronomers do know that the sun is divided into five layers or zones. Starting at the outside and going down into the sun, the zones are the corona, chromosphere, photosphere, convection zone and finally the core. The first three zones are regarded as the sun’s atmosphere ends and the main body of the sun begins.
The sun’s outermost layer begins about 10,000 miles above the visible surface and goes outward for millions of miles. This is the only part of the sun that can be seen during an eclipse such as the one in February 1979. At any other time, the corona can be seen only when special instruments are used on cameras and telescopes to shut out the glare of the sun’s rays.
The corona is a brilliant, pearly white, filmy light, about as bright as the full moon. Its beautiful rays are a sensational sight during an eclipse. The corona’s rays flash out in a brilliant fan that has wispy spikelike (一束束穗状) rays near the sun’s north and south poles. The corona is thickest at the sun’s equator.
The corona rays are made up of gases streaming outward at tremendous speeds and reaching a temperature of more than 2 million degrees Fahrenheit. The rays of gas thin out as they reach the space around the planets. By the time the sun’s corona rays reach the earth, they are weak and invisible.
1.Matter on the sun can exist only in the form of gas because of the sun’s ______.
A. size B. age C. location D. temperature
2.With what topic is the second paragraph mainly concerned?
A. How the sun evolved.
B. The structure of the sun.
C. Why scientists study the sun.
D. The distance of the sun from the planets.
3.All of the following are parts of the sun’s atmosphere EXCEPT the _______.
A. corona B. chromospheres
C. photosphere D. core
4.According to the passage, as the corona rays reach the planets, they become _______.
A. hotter B. clearer
C. thinner D. stronger
5.The paragraph following the passage most likely discusses which of the following?
A. The remaining layers of the sun.
B. The evolution of the sun to its present form.
C. The eclipse of February 1979.
D. Scientists will cost more money on researching the corona.
高一英语阅读理解中等难度题查看答案及解析
The temperature of the sun is over 5,000 degrees Fahrenheit at the surface, but it rises to perhaps more than 16 million degrees at the center. The sun is so much hotter than the earth that matter can exist only as a gas, except at the core(核心). In the core of the sun, the pressures are so great against the gases that, despite the high temperature, there may be a small solid core. However, no one really knows, since the center of the sun can never be directly observed.
Solar astronomers do know that the sun is divided into five layers or zones. Starting at the outside and going down into the sun, the zones are the corona, chromosphere, photosphere, convection zone and finally the core. The first three zones are regarded as the sun’s atmosphere. But since the sun has no solid surface, it is hard to tell where the atmosphere ends and the main body of the sun begins.
The sun’s outermost layer begins about 10,000 miles above the visible surface and goes outward for millions of miles. This is the only part of the sun that can be seen during an eclipse (日食) such as the one in February 1979. At any other time, the corona can be seen only when special instruments are used on cameras and telescopes to shut out the glare(刺眼的强光)of the sun’s rays.
The corona is a brilliant, pearly white, filmy light, about as bright as the full moon. Its beautiful rays are a sensational sight during an eclipse. The corona’s rays flash out in a brilliant fan that has wispy spikelike (一束束穗状) rays near the sun’s north and south poles. The corona is thickest at the sun’s equator.
The corona rays are made up of gases streaming outward at tremendous speeds and reaching a temperature of more than 2 million degrees Fahrenheit. The rays of gas thin out as they reach the space around the planets. By the time the sun’s corona rays reach the earth, they are weak and invisible.
1.Matter on the sun can exist only in the form of gas because of the sun’s ______.
A. size B. age
C. location D. temperature
2.With what topic is the second paragraph mainly concerned?
A. How the sun evolved.
B. The structure of the sun.
C. Why scientists study the sun.
D. The distance of the sun from the planets.
3.All of the following are parts of the sun’ s atmosphere EXCEPT the _______.
A. corona B. chromosphere
C. photosphere D. core
4.The paragraph following the passage most likely discusses which of the following?
A. The remaining layers of the sun.
B. The evolution of the sun to its present form.
C. The eclipse of February 1979.
D. Scientists will cost more money on researching the corona.
高一英语阅读理解中等难度题查看答案及解析
Global surface temperatures have increased 0.6—1.2 degrees since the late 19th century. The 20th century’s 10 warmest years all happened within the last 15 years. Of these,1998 was the warmest year on record. The snow covering the Northern Hemisphere(半球)and floating ice in the Arctic Ocean decreased. Globally, sea level has risen 4—10 inches over the past century. World-wide amount of rain and snow over land has increased by about one percent. The number of major rainfall events has increased throughout much of the United States.
Increasing concentrations(集中)of greenhouse gases are likely to make climate change faster. Scientists expect that the average global surface temperature could rise 1.6—6.3 degrees by 2100,and the climate in different areas could change differently. Evaporation(蒸发)will increase as the climate warms, which will increase average global amount of rain and snow. Soil moisture(潮湿)is likely to decrease in many areas, and strong rainstorms are likely to become more frequent.Sea level is likely to rise two feet along most of the U.S coast.
Calculations of climate change for certain areas are much less able to be trusted than global ones, and it is unclear whether the climate in different areas will become more variable(变化无常的).
64.Which of the following statements is not mentioned in the first paragraph?
A.The snow has been seen covering the Southern Hemisphere .
B.More and more major rainfall events have happened to the U.S.
C.On the whole earth, sea level has risen 4—10 inches.
D.The amount of the rain in the world has increased by about 1%.
65.According to scientists, the reason why the climate becomes warm is that________.
A.the snow covering Northern Hemisphere has decreased
B.evaporation has increased in the recent years
C.greenhouse gases concentrate increasingly
D.the floating ice in the Arctic Ocean has decreased
66.It is because______ that strong rainstorms become more frequent.
A.average global little of rain and snow increases
B.the climate becomes warm
C.soil moisture decreases
D.sea level rises two feet
高一英语阅读理解简单题查看答案及解析
课文原文填空(短语填空)
It is 5:45 am and the sun is just rising over Gombe National Park in East Africa. Following Jane’s way of studying chimps, our group are all going to visit them in the forest. Jane has studied these families of chimps for many years and helped people understand how much they behave like humans. Watching a family of chimps is our first activity of the day. This means 1. (回到)the place where we left the family sleeping in a tree the night before. Everybody sits and waits 2. (在…荫凉下)the trees while the family begins to wake up and 3. (离开). Then we follow as they 4. (漫步走进)the forest. Most of the time, chimps either feed or clean each other as a way of showing love in their family. Jane warns us that our group is going to be very tired and dirty by the afternoon and she is right. However, the evening 5. (让一切变得值得). We watch the mother chimp and her babies play in the tree. Then we see them go to sleep together in their nest for the night. We realize that the bond between members of a chimp family is as strong as in a human family.
Born in 1930,Yuan Longping 6. (毕业于) Southwest Agricultural College in 1953. 7. (自从那时), finding ways to grow more rice has been his life goal. As a young man, he saw the great need for increasing the rice output. At that time, hunger was a disturbing problem in many parts of the countryside. Yuan Longping 8. (寻找) a way to increase rice harvests without expanding the area of the fields. In 1950, Chinese farmers could produce about fifty-six million tons of rice. In a recent harvest, however, nearly two hundred million tons of rice was produced. These increased harvests mean that 22% of the world’s people are fed from just 7% of the farmland in the world. Yuan Longping is now circulating his knowledge in India, Vietnam and many other less developed countries to increase their rice harvests. 9. (多亏) his research, the UN has more tools in the battle to 10. (使世界消除饥饿). Using his hybrid rice, farmers are producing harvests twice before.
高一英语语法填空困难题查看答案及解析
听下面一段较长对话,回答以下小题。
1.What will the temperature be in Greece tomorrow?
A. About 20 degrees Celsius.
B. About 25 degrees Celsius.
C. About 32 degrees Celsius.
2.What will the weather be like tomorrow in France?
A. Rainy. B. Cloudy. C. Sunny.
3.Which place will be the coolest tomorrow?
A. Greece. B. England. C. France.
高一英语长对话中等难度题查看答案及解析
Peter’s teacher is so proud that he is the only one of the brightest students ________ his degree.
A. received B. has received C. who receive D. receiving
高一英语单项填空中等难度题查看答案及解析
下面是上海博物馆展品的介绍,请阅读下列应用文和相关信息,并按照要求匹配信息。
A: A collection of over 3,000 pieces covers the history of the birth and development of Chinese currency. The ancient Silk Road coins record the economic history of those ancient nations along the Silk Road.
B: About 100 pieces of furniture illustrate the elegant simplicity of Ming style and the brilliant appearance of Qing style. A Mingstyle reception hall and a study, together with a set of furniture models unearthed from a Ming tomb, represent the household life of centuries back.
C: Beginning with the writing carved on oracle bones and bronzes, to the age of bamboo slips and stone steles (石碑), many masterpieces, including those by Wang Xizhi and Wang Xianzhi, present the interpretations of seal, official, running, cursive and regular scripts.
D: Long long rolls by masters from Tang, Song, Yuan, Ming and Qing dynasties are displayed in the showcases by the long corridor, unfolding the glorious history of Chinese painting.
E: Over 400 bronzes of unique shapes, delicate decor and excellent techniques tell you the 1500year history of the great Chinese Bronze Age from 18th century B. C. till 3rd century B. C.
F: About 120 statues in the gallery cover the development of Chinese sculpture art from the Warring States to the Ming dynasty. The Buddhist sculptures show how Buddhism confronted and harmonized with Chinese traditional culture over the history.
下面是部分参观者的信息,请为他们找到各自需要的展馆。
( ) 1.Liu Qiang is a middle school student, who is fond of art handwriting. He is curious about the development of all art handwriting in history.
( ) 2.Cha Leon is from Thai and he is a devoted Buddhism believer. He wants to learn what Buddhism has brought into Chinese culture, especially at an aspect of art.
( ) 3.Mr. Chang is a successful businessman. One of his hobbies is to collect house fittings in old look, especially beds, chairs or desks centuries ago. He won't lose a chance to appreciate such kind of things.
( ) 4.Mai Ya is studying in a university majoring in economy. Next week she will present her project with a lot of pictures of ancient money in her PPT, but she still needs to learn more about the money and the history period.
( ) 5.Xiao Yang is fond of fine art. He believes enjoying masterpieces is a shortcut for him to develop painting ability, and he is fond of Chinese traditional ones.
高一英语信息匹配中等难度题查看答案及解析
The reason why this kind of machine is popular with users is that it will work in ______ temperature.
A.official B.extreme C.common D.natural
高一英语单项填空中等难度题查看答案及解析
The reason why this kind of machine is popular with users is that it will work in ______ temperature.
A. official B. extreme C. common D. natural
高一英语单项填空中等难度题查看答案及解析
The art of public speaking began in ancient Greece over 2,000 years go. Now, twitter, instant messaging, e-mail, blogs and chat forums offer rival approaches to communication - but none can replace the role of a great speech.
The spoken word can handle various vital functions: persuading or inspiring, informing, paying tribute, entertaining, or simply introducing someone or something or accepting something. Over the past year, the human voice has helped guide us over the ups and downs of what was certainly a stormy time.
Persuasion is used in dealing with or reconciling different points of view. When the leaders met in Copenhagen in December 2009, persuasive words from activists encouraged them to commit themselves to firmer action. Inspirational speeches confront the emotions. They focus on topics and matters that are close to people's hearts. During wars, generals used inspiring speeches to prepare the troops for battle.
A speech that conveys knowledge and enhances understanding can inform us. The information must be clear, accurate, and expressed in meaningful and interesting way. When the H1N1 pandemic(流行病)was announced, the idea of "swine flu" scared many people. Informative speeches from World Health Organization officials helped people to keep their panic under control so they could take sensible precautions.
Sad events are never easy to deal with, but a speech that pays tribute to the loss of a loved one and gives praise for their contribution can be comforting. Madonna's speech about Michael Jackson, after his death, highlighted the fact that he will continue to live on through his music.
It's not only in world forums where public speaking plays an important role. It can also be surprisingly helpful in the course of our own lives.
If you're taking part in a debate you need to persuade the listeners of the soundness of your argument. In sports, athletes know the importance of a pep talk(鼓舞士气的讲话)before a match to inspire teammates. You yourself may be asked to do a presentation at college or work to inform the others about an area of vital importance.
On a more personal level, a friend may be upset and need comforting. Or you might be asked to introduce a speaker at a family event or to speak at a wedding, where your language will be needed to move people or make them laugh.
Great speaking ability is not something we're born with. Even Barack Obama works hard to perfect every speech. For a brilliant speech, there are rules that you can put to good use. To learn those rules, you have to practice and learn from some outstanding speeches in the past.
1.The author thinks the spoken word is still irreplaceable because _______.
A.it has always been used to inspire or persuade people.
B.it has a big role to play in the entertainment business.
C.it plays important roles in human communication.
D.it is of great use in everyday-life context.
2.Which of the following statements is INCORRECT about the role of public speaking?
A.Speeches at world forums can lead to effective solutions to world problems.
B.Speeches from medical authorities can calm people down in times of pandemics.
C.The morale of soldiers before a battle can be boosted by senior officers' speeches.
D.Speeches paying tribute to the dead can comfort the mourners.
3.According to the passage, which of the following best explains the author's view on "great speaking ability"?
A.It comes from observing rules.
B.It can be perfected with easy effort.
C.It can be acquired from birth.
D.It comes from learning and practice.
4.What is the main idea of the passage?
A.Public speaking in international forums.
B.The many uses of public speaking.
C.Public speaking in daily life context.
D.The rules of public speaking.
高一英语阅读理解中等难度题查看答案及解析