( C ) The solar system is bigger than we thought. Scientists have found a new world orbitingthe Sun 2 billion miles beyond Pluto, which had been the most distant known planet. The existence of the new object – named Sedna after a goddess of the sea – will be announced by NASA tomorrow. It is about 6 billion miles from Earth and the space shuttle would need to travel for more than 40 years to reach it. Professor Michael Brown from California Institute of Technology , whose team made the discovery, said the find was the most significant for years. “Sedna is very big, and much further out than previous discoveries, he said. It extended significantly the known boundaries of the solar system. Sedna has a diameter of more than 1,200 miles, making it the biggest find in the solar system since Pluto was discovered 74 years ago. It is slightly smaller than Pluto - a finding that is likely to reopen the debate over what a planet is actually made up of. Some scientists claim that even Pluto is too small to be regarded as a planet while others say that any sizeable object orbiting the sun fits the definition. In 2002 Brown’s team reported the discovery of Quaoar, a planetoid about 800 miles in diameter and 1 billion miles beyond Pluto. Pluto’s average distance from the sun is 3.6 billion miles. Last month they reported finding a new body, code-named 2004 DW, which is 10% larger and slightly further away. Both those objects lie within the Kuiper belt - some rocks and very small planetoids orbiting the sun beyond Neptune that are probably the remains that formed the solar system about 5 billion years ago. There are about 800 known Kuiper belt objects, most of them about 60 miles in diameter. “Sedna is much further out than 2004 DW and is well beyond Kuiper belt, Brown said. “We have been looking for 2 1/2 years and I am pretty sure there are other large bodies up there too. Cambridge Prof. Sir Martin Rees said objects like Sedna could provide valuable clues on how the solar system formed. 72. Which of the following CANNOT be true about Sedna? A. It is named after a goddess of the sea. B. It has a diameter of more than 1200 miles. C. It is a satellite of Pluto. D. It has been observed for some time. 73. Which of the following might be the focus in the debate over the definition of a planet? A. Its size and orbiting. B. Its size and structure. C. Its distance from the sun. D. Its position in the solar system. 74. Which of the following tells the correct order of discovery in the order of time? A. Sedna-Quaoar-2004 DW. B. Quaoar-2004 DW-Sedna. C. 2004 DW-Sedna-Quaoar. D. Quaoar-Sedna-2004 DW. 75. What is implied about the Kuiper belt in the passage? A. It consists of rocks and small planetoids moving around the sun. B. Its structure is the same as most of the planets of the solar system. C. Its objects are of the same size in diameter with Sedna or Quaoar. D. It has shown how the solar system was formed. Section C Directions: Read the following passage and then answer the questions or complete the statements in the fewest possible words. Parents who would like to buy toy computers and other electronic games marketed as improving learning for children could save their money and help their children to learn themselves, according to new research. A study examining the role of technology in the lives of three- and four-year-old children and their families found that the hi-tech toys are no more useful than traditional ways of introducing basic literacy and number skills. Toy laptops and mobile phones were of greater value to young children as an aid to imaginative play such as pretending to make phone calls than in teaching specific skills, researchers at the University of Stirling concluded after tracking families for 15 months. Youngsters also gained an understanding of the social role of technology simply by watching their parents use computers, digital cameras and mobile phones in daily life. The study, which examined 24 families of varying social backgrounds in detail and analyzed written responses from 346 families in total, found parents were almost all interested in preparing their children not only for school but also for the world of work, but they felt unsure whether to buy them electronic toys. Lydia Plowman, professor of education at Stirling University, said parents interviewed experienced “a lot of worries about the role of new technology, and felt under pressure from producers to buy education electric toys. Professor Plowman, announcing her research at a conference, said such toys were neither harmful nor “particularly useful . She said: “I don’t think there is any problem about children having these toys at home, but in terms of basic literacy and number skills I don’t think they are more useful than the more traditional methods. Parents who bought such toys often failed to replace the battery when it ran out after children lost interest, she added. Almost all the families reported that their children listed going to the park as a favourite activity, while some did not list technology as a favourite at all. (Note: Answer the questions or complete the statements in NO MORE THAN FIFTEEN WORDS) 76. Parents bought toy computers and other electronic games so as to . 77. What’s the benefit of the youngsters’ watching their parents use electric appliance? 78. Why did parents feel under pressure from producers to buy education electric toys? 79. Almost all the families reported that their children preferred . Section D Directions: Read the following text and choose the most suitable heading from A-F for each paragraph. There is one extra heading which you do not need. 80. Any climatic change will affect agricultural production. Some of the world’s major food production areas could become considerably drier as a result of global warming. Other areas that are currently too dry to support agriculture may experience increased rainfall and become suitable for food production. Flood plains and river delta regions that currently grow a significant proportion of the world’s food would be permanently under water. 81. There is much public discussion in a number of countries about ways of slowing the increase in the amount of greenhouse gases being released into the atmosphere. These include: l Reducing the consumption of fossil fuels. Energy conservation measures can be adopted and renewable energy sources such as solar power, can be developed. l Slowing the rate at which forests are being cleared, and introducing more reforestation programs, which would also slow the increase in carbon dioxide levels. 82. If global warming cannot be prevented, many countries will need to examine issues such as the planning and design of housing, particularly in low-lying areas subject to increased flooding and erosion. 83. Atmospheric scientists rely on satellites to collect much of their data. They have recently discovered that many of these satellites have been slipping from their orbits and so, in interpreting the measurements, scientists have assumed temperatures at a particular altitude to be lower than is actually the case. Readings have therefore been adjusted upwards. Such difficulties are just one example of the challenges facing scientists in determining the extent of global warming. There is a continuing need to research the consequences of an increased greenhouse effect. 84. In examining this issue you can see that carbon dioxide, while essential for the maintenance of life on the earth, can be regarded as a pollutant in the atmosphere if its concentration becomes too high. 第II卷 查看更多

 

题目列表(包括答案和解析)

Let children learn to judge their own work. A child learning to talk does not learn by being corrected all the time: if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language like other people’s. In the same way, children learn to do all the other things they learn to do without being taught--- to walk , run, climb, whistle, ride a bicycle --- compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes for himself, let alone(更不用说) correct them. We do it all for him. We act as if we thought that he would never notice a mistake unless he was made to. Soon he becomes dependent on the teacher. Let him do it himself. Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not.

    If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time on such routine(常规的) work? Our job should be to help the child when he tells us that he can’t find the way to get the right answer. Let’s end all this nonsense of grades, exams and marks. Let us throw them all out, and let the children learn what all educated persons must some day learn: how to measure their own understanding, how to know what they know or do not know.

    Let them get on with this job in the way that seems most sensible(合情理的) to them, with our help as school teachers if they ask for it. The idea that there is a body of knowledge to be learnt at school and used for the rest of one’s life is nonsense(无意义的) in a world as complicated and rapidly changing as ours. Anxious parents and teachers say, “But suppose they fail to learn something essential(基本的), something they will need to get on in the world?” Don’t worry! If it is essential, they will go out into the world and learnt it.

What does the writer think is the best way for children to think?

By listening to their parents’ instructions. 

By asking a great many questions.

By making mistakes and having them corrected. 

By copying what other people do.

What does the writer think teachers should not do?

A. Give children correct answers.        

B. Point out children’s mistakes to them.

C. Allow children to mark their own work.    

D. Encourage children to copy one another.

According to the passage, learning to speak and learning to ride a bike are _____.

A. the most important skills                  B. the basic skills children should master

C. almost the same as learning other skills     D. much different from learning other skills.

The writer thinks that children’s progress should only be estimated(评估) by ______.

A. the children themselves                B. their parents

    C. their teachers                         D. education authorities(权威)

The writer is afraid that children will grow up into adults who are ______.

A. too selfish                            B. too independent

C. dependent and unable to use basic skills    D. able to think for themselves

查看答案和解析>>

Informal conversation is an important part of any business relationship. Before you start a discussion, however, make sure you understand which topics are suitable and which are considered taboos(禁忌) in a particular culture. Latin Americans enjoy sharing information about their local history, art, and customs. They expect questions about their family and are sure to show pictures of their children. You may feel free to ask similar questions of your Latin American friends. The French think of conversation as an art form, and they enjoy the value of lively discussions as well as disagreements. For them, arguments can be interesting — and they can cover pretty much or any topic — as long as they occur in a respectful and intelligent manner.

In the United States, business people like to discuss a wide range of topics, including opinions about work, family, hobbies, and politics. In Japan, China, and Korea, however, people are much more private. They do not share much about their thoughts, feelings, or emotions because they feel that doing so might take away from the harmonious business relationship they’re trying to build. Middle Easterners are also private about their personal lives and family matters. It is considered rude, for example, to ask a businessman from Saudi Arabia about his wife or children.

As a general rule, it’s best not to talk about politics or religion  with your business friends. This can get you into trouble, even in the United States, where people hold different views. In addition, discussing one’s salary is usually considered unsuitable. Sports is typically a friendly subject in most parts of the world, although be careful not to criticize a national sport. Instead, be friendly and praise your host’s team.

The author considers politics and religion ________.

A. cheerful topics                        B. taboos

C. rude topics                             D. topics that can never be talked about

Which is typically a friendly topic in most places according to the author?

A. Sports.                                   B. Children.   

C. Personal feelings.                  D. Families.

Why are people from Asia more private in their conversation with others?

A. They don’t want to talk with others much.

B. They don’t want to have their good relationship with others harmed by informal conversation.

C. They are afraid to argue with their colleagues.

D. They want to keep their feelings to themselves.

What shouldn’t you do when talking about sports with colleagues from another country?

A. Praising your own country’s sports.

B. Criticizing your own country’s sports.

C. Praising the sports of your colleagues’ country.

D. Criticizing the sports of your colleagues’ country.

查看答案和解析>>

A gadget which makes water out of air could become the greatest household invention since the microwave. http://www..com/gaokao/beijing/

Using the same technology as a dehumidifier(除湿器),the Water Mill is able to create a ready supply of drinking water because it can always get it from an unlimited source—the air.http://www..com/gaokao/beijing/

The company behind the machine says not only does it offer an alternative to bottled water inhttp://www..com/gaokao/beijing/

developed countries, but it is a solution for the millions who face a daily water shortage.http://www..com/gaokao/beijing/

The machine works by drawing in wet air through a filter(过滤器)and over a cooling instrument which changes it into water droplets.It can produce up to 12 liters a day.The Water Mill will also produce more water when storms pass over, as the amount of water which is contained in the air increases. In keeping with its eco-development, the machine uses the same amount of electricity as three lights.     Inventor Jonathan Ritchey said, “The demand for water is off the chart. So people are looking for freedom from water distribution systems that are shaky and unreliable.”

The machine, which is about 3 feet wide, is likely to cost £800 when it goes on sale here in the spring. Its maker, Canadian Firm Element Four, roughly calculates that a liter of water costs around 20 pence to produce.

Environmentalists state that half the world’s population will face water shortage because of climate change by 2080. One in five is said to lack access to safe drinking.

The Water Mill is not effective in areas where the amount of water contained in the air is below about 30 percent, but in Britain that won’t be much of a problem.

What does the underlined word “it” refer to?

A.Drinking water.  B.Invention.    C.Microwave.      D.Water Mill.

What do we learn about the machine?

A.It works in the same way as microwaves.

B.It is very expensive for families to afford.

C.It absorbs wet air and turns it into water.

D.It helps to make the water clean to drink. http://www..com/gaokao/beijing/

What does the passage lead us to believe? http://www..com/gaokao/beijing/

A.The cost of water will go up.  B.Bottled water will disappear soon.

C.The machine is energy saving. D.The machine will be popular worldwide.

What’s the best title for the passage? http://www..com/gaokao/beijing/

A.A New Way to Solve Water Problem.  B.A Machine to Make Water out of Air.

C.A Dehumidifier to Produce Water.  D.An Absolutely New Invention

查看答案和解析>>

In America, when the eighth graders leave the middle school, they are often worried about moving to the high school. It is a hard time for them, but it can be an exciting one as well. To make it easier, students need to get familiar with their school.

Even though they’ve done this already in the middle school, it’s still important to find where their classrooms are. Most schools take students to the high school for a visit at the end of their eighth grade year. And, most schools also have a freshman (新生) speech for parents and students before the first year begins. Sometimes the main office will give away a map of the school. This can help students and parents to find different places in the school.

One way to know your high school more and make new friends is to join a club or play a sport. Schools often offer chances to join different clubs and sports. Fall activities begin in August before the first day of school. If you are not interested in sports, there are clubs for any interest, such as drama, dance, chess, photography, community service, etc. These clubs allow students from different grades. By joining an activity, students can find new friendships, not to mention improving their chances in future college applications (申请). The school office will have a list of activities offered at the school and information on how to join them.

What’s more, to have a great start to a high school year, students can write down some of their worries, and ask for help from teachers and school workers.

According to the text, most students feel ________ when entering the high school.

A. excited          B. nervous          C. lonely           D. disappointed

Which of the following is TRUE about the school clubs?

A. There are fewer students from higher grades in the school clubs.

B. The school clubs in high school only welcome sports fans.

C. Summer activities begin before school starts.

D. The school office can help new students join school clubs.

When do many schools take students to visit their new high school?

A. Before the eighth grade year starts.

B. Right after the high school year starts.

C. At the beginning of the new term in the high school.

D. At the end of their eighth grade year

The main offices will give away maps of their schools________.

A. only to help students to find different places of the schools

B. only to help parents to find different places of the schools

C. to help students and parents to find different classrooms of the schools

D. to help students and parents to find different places of the schools

What is the purpose of this text?

A. To tell the new students how to learn in high school

B. To introduce new schools.

C. To give the teachers some advice.

D. To give advice to new high school students.

查看答案和解析>>

Drunken driving sometimes called American's socially accepted form of murder has become a national epidemic(流行病).Every hour of every day about three Americans on average are killed by drunken drivers, adding up to an incredible 250,000 over the past ten years.A drunken driver is usually referred to as one with 0.10-blood alcohol content or roughly three beers, glasses of wines or shots of whisky drunk within two hours.Heavy drinking used to be an acceptable part of the American manly image and judges were lenient in most courts, but the drunken killing has recently caused so many well-publicized tragedies, especially concerning young children, that public opinion is no longer tolerant.

Twenty states have raised the legal drinking age to 21, reversing a trend (逆转潮流) in the 1960s to reduce it to 18.After New Jersey lowered it to 18, the number of people killed by 18-20-year-old drivers more than doubled, so the state recently upped it back to 21.

Reformers, however, fear raising the drinking age will have little effect unless accompanied by educational programs to help young people to develop "responsible attitudes" about drinking and teach them to resist peer pressure to drink.

Some states are punishing bars for serving customers too many drinks.A bar in Massachusetts was fined for serving six or more double brandies to a customer who was "obviously drunk" and later drove off the land, killing a nine-year-old boy.

As the accidents continue to occur daily in every state, some Americans are even beginning to speak well of the 13 years national prohibition (禁令) of alcohol that began in 1919, which President Hoover called the "noble experiment".They forget that legal prohibition didn't stop drinking, but encouraged political corruption (腐败) and organized crime.As with the booming drug trade generally, there is no easy solution.

It can be inferred from the passage that drunken driving has become a major problem in the United States because___.

A.most Americans like drinking

B.heavy dinking is hard to avoid

C.Americans are not shocked by traffic accidents

D.many Americans are killed by traffic accidents

What can be inferred from the fact of the traffic accidents in New Jersey?

A.Drivers should not be allowed to drink.

B.Young drivers were usually bad.

C.The legal drinking age should be raised.

D.Some drivers didn't reach the legal drinking age.

The underlined word "lenient" in the first paragraph means___.

A.cruel    B.serious      C.determined       D.merciful[来源:Z§Which of the following best shows the writer's opinion of drunken driving?

A.It may cause organized crime.

B.The new laws can stop heavy drinking.

C.There should be no bars to serve drinks.

D.It is difficult to solve the problem.

查看答案和解析>>


同步练习册答案