Directions:Readthefollowingtex

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更新 2022-09-03
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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.

A．Causes of overusing fluoride	B．Negative effects of fluoride
C．Safe use of fluoride	D．The expert’s background information
E．No need to worry about fluoride poisoning
F．Solutions to improper use of fluoride

I have heard that fluoride can help stop dental decay, but I recently read that it is poisonous．Which of these is true? How can children use fluoride safely?

This question is answered by Dr Marcia M．Rich who practises general dentistry in Newholt．She is also a lecturer at the University and a writer for the monthly magazine Your Dentist Cares．

My answer to the first question is to stress that fluoride works well and is safe when users follow instructions．Young children have a tendency to swallow toothpaste, which is why they should only have a tiny amount of fluoride toothpaste on their toothbrush．If this simple measure is taken, parents can be confident that children will be protected against tooth decay, and come to no harm.

Almost all medicines have an adverse effect－or even be deadly－if they are not taken as directed．So you are right－fluoride can be poisonous if it is swallowed in very large quantities．It is for the reason that fluoride supplements can only be obtained on prescription from the doctor or dentist．Please be assured that fluoride overdoses are rare－in fact, I have never heard of any fatal incidents related to fluoride poisoning.

Scientific studies have shown that fluoride can help to prevent cavities as long as it is used correctly．If fluoride is abused, there is a risk of illness or even deaths in extreme cases．If a deadly amount of fluoride is taken, immediate first-aid could save a life．A person who has swallowed a large amount of fluoride will probably start vomiting．If not, the patient should be given milk or antacid and taken to the nearest hospital for emergency treatment.

Taking too much fluoride while teeth are growing can lead to a condition called dental fluorosis．The most likely cause is the swallowing of fluoride toothpastes by young children．It can also be caused by inappropriate use of fluoride drop or other fluoride supplements, for example when fluoride is already is already present in drinking water．

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C
Fear and its companion pain are two of the most useful things that man and animals possess if they are used. If fire didn’t hurt when it burned, children would play with it until their hands were burned away. Similarly, if pain existed but fear didn’t, a child could burn itself again and again because fear would not warn it to keep away from the fire that had burnt it before. A really fearless soldier—and some do exist—is not a good soldier because he is soon killed; and a dead soldier is of no use to his army. Fear and pain are therefore two guards without which man and animals might soon die out.
In our first sentence we suggested that fear ought to be properly used. If, for example, you never go out of your house because of the danger of being knocked down and killed in the street by a car, you are letting fear rule you too much. The important thing is not to let fear rule you, but instead, to use fear as your servant and guide. Fear will warn you of dangers; then you have to decide what action to take.
In many cases, you can take quick and successful action to avoid the danger. For example, you see a car coming straight towards you; fear warns you, you jump out of the way, and all is well.
In some cases, however, you decide that there is nothing that you can do to avoid the danger. For example, you cannot prevent an airplane crashing into your house, and you may not want to go and live in a desert where there are no airplanes. In this case, fear has given you its warning, you have examined it and decided on your course of action, so fear of the particular danger is no longer of any use to you, and you have to try to overcome it.
65. People sometimes succeed in timely avoiding danger because _________.
A. they have gained experience     B. they are warned of the danger and take quick action
C. they jump out of the way in time D. they are calm in face of danger
66. What is implied but not stated in the passage?
A. Too much fear is harmful              B. Fear is always something helpful
C .Fear is something that can be avoided      D. Fear ought to be used as our guide in our life
67.The best title for this passage should be __________.
A. No Pains, No Gains          B. Pain and Actions
C. The Value of Fear      D .The Reason Why People Fear

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B
A new college guide in the United States compares educational requirements in seven subjects. These include math, science, writing and United States history or government. The other subjects are economics, foreign language and literature.
The free online guide is from the American Council of Trustees and Alumni. The council is a nonprofit group that supports liberal arts education.
Its president, Anne Neal, says these areas of knowledge are needed to succeed in a twenty-first century society and an increasingly connected world. Yet she told VOA’s Faiza Elmasry it was surprising how many students can graduate with, in her words, a “thin education.”
Forty-two of the one hundred colleges and universities surveyed received the lowest marks. This meant they required two or fewer of the seven subjects. Five schools received a top grade for requiring six subjects. These were Brooklyn College in New York City, Texas A&M, the University of Texas-Austin, West Point and the University of Arkansas.
Robert Costrell is a professor of education reform and economics at the University of Arkansas. He says many, if not all, of the top American colleges once had a core curriculum —a set of courses required for all students.
But over the years, many have dropped these requirements. Or they have watered them down, Professor Costrell says, into what became known as distribution requirements. This system lets a student choose from a number of different courses to satisfy a requirement.
ROBERT COSTRELL: “And in many cases these courses went too far, I would say, towards the fluffy treatment of serious material, and students could satisfy their requirement by taking such courses.”
Professor Costrell says schools should not only re-examine what they teach. They should also measure what students have learned — for example, through some form of examinations or papers.
A new report this week from the College Board showed that college prices continue to rise. But Anne Neal from the American Council of Trustees and Alumni says higher prices. do not guarantee a better general education. In fact, the group found that the higher the tuition, the more likely that students have to develop their own general education.
The college guide is on the Web at whatwilltheylearn.com. Anne Neal says her group is surveying more colleges. The hope, she says, is to discover what college graduates have really learned, and how ready they are to compete in the global marketplace.
61. Where does the passage probably come from?
A. A scientific fiction.                      B. A research newspaper.
C. A fashion magazine.                     D. An entertainment newspaper.
62. The American Council of Trustees and Alumni does all the following EXCEPT _________.
A. support liberal arts education
B. concern itself with education in America
C. devote time to helping improve college education
D. make money by helping with college education
63. The words “watered them down” underlined in Paragraph 6 most likely mean “_______.”
A. reduced required courses                 B. improved required courses
C. increased required courses                D. developed required courses
64. In this passage, the new college guide mainly tells its readers that American colleges should _____.
A. meet the requirements of the new century        B. reduce the number of required courses
C. have different standards on required courses      D. cut down on their tuitions

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四.阅读理解
A
United Nations Climate Change Conference
The U.N. Climate Change conference opened in Copenhagen, Denmark on Dec.7th with some 15,000 delegates and observers from nearly 200 countries attending what is called the last best chance for an agreement to combat(与……战斗) global warming.
Their aim is to find common ground, including on reduction of greenhouse gas emissions, promotion and transfer of new more eco-friendly technology and the necessary funding to make this possible, especially for the less developed and poorer nations.  It also means coming up with long term vision and cooperation for the future.
Most scientists believe the warming trend is mainly caused by human activity, especially the use of fossil fuels(矿物燃料) and the cutting down of forests. Skeptics(怀疑论者) say global warming is part of a natural cycle of climate change.
In Copenhagen, experts and officials alike are putting the emphasis on what people and governments can do to cut the emission of greenhouse gases.
Scientists say a 25 to 40 percent cut in carbon-dioxide emissions is needed to control global warming. The European Union, China, and India have already pledged(保证) reductions. The United States is waiting for Congressional(国会的) approval for a proposal put forward by the Obama administration.
Barack Obama, President of the United States said, “Each of us must do what we can when we can to grow our economies without endangering our planet -- and we must all do it together. We must seize the opportunity to make Copenhagen a significant step forward in the global fight against climate change..”
Desmond Tutu, Archbishop of South Africa said, “Worldwide, we have the chance to start turning the tide of climate change, but only if all governments commit themselves to a fair, binding(有约束力的) and sustainable climate agreement in Copenhagen.”
56. From the first paragraph we can infer that___________.
people think that this conference is of no use
this conference is the last one to be held about the climate change
before this conference some countries fight against each other.
people expect a final agreement will be achieved
57. Which is NOT included in the aim of this conference?
A. To reduce the emission of the greenhouse gases.
B. To develop the agriculture and industry of the developed countries.
C. To cooperate with each other for the future.
D. To transfer new more eco-friendly technology.
58. Which statement is TRUE according to the passage?
A. The United States refuses to reduce the emission of greenhouse gases.
B. The European Union is waiting for a proposal put forward by Obama.
C. China and India have already agreed to cut carbon-dioxide emissions.
D. South Africa doesn’t think much of this conference.
59. What is Obama’s attitude according to his words?
A. Doubtful.                          B. Positive.     C. Negative.                    D. Regretful.
60. _________is the reason of global warming according to the skeptics.
A. Human activity                  B. Fossil fuels
C. The cutting down of trees           D. Natural climate change

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E
Britain’s 101-year-old Queen Mother , who died on March 30 , was famous for never giving interviews . However , her few publicized comments showed humor , a strong will and love for life .
In the 1920s , many men wanted to marry lady Elizabeth Angela Marguerite Bowes-Lyon . She only agreed to marry the future King George Ⅵ when he got down on bended knee for a third time to ask her . But she never forgave her brother Edward Ⅷ for stepping down from the throne（王位）in 1936 to marry divorced（离婚）woman Wallis Simpson . This meant that her shy husband became king. “Those last few days were like sitting on the edge of a volcano,” she said of the crisis.
The Queen Mother’s most famous role in British life was to try to boost（提高）Londoners’ morale（士气）during the World War II bombing（轰炸）, especially in the hardest-hit East End of London. When Buckingham Palace（白金汉宫）was hit by a bomb in 1940 , she said , “ I am glad we have been bombed . It makes me feel I can look the East End（people）in the face . ”
Famously , she refused suggestions that she and her children，the princesses Elizabeth and Margaret , should seek refuge（寻求避难）in Canada until the end of the war . “ The children won’t go without me , I won’t leave the king and the king will never go . ” she declared . “ I should die if I had to leave . ”
After better times returned，her love of expensive parties and high life continued，well into her old age . Her bank overdraft（透支）reached 4 million pounds .
She enjoyed fishing until well into her 80s but once choked（噎住）on a fishbone . After doctors removed the bone , she joked , “ After all these years of fishing , the fish are having their revenge（报复）. ”
In the end, she outlived the 20th century with energy and enthusiasm. “I love life, that’s my secret,” she told a friend when she was in her 80s . In a television interview last week, her grandson Prince Charles said, “She saw the funny side of life and we laughed until we cried.”
Hundreds of people have signed books of condolence（哀悼）across the country , including former Prime Minister Margaret Thatcher .
“She loved her country and in return her country loved her.” said Prime Minister Tony Blair.
72. The Queen Mother refused to seek refuge in Canada with her children because       .
A. she didn’t think it safe to stay in Canada
B. she wasn’t willing to go without her husband
C. she hoped to boost Londoners’ morale
D. she wanted to earn good fame through the war
73. When Queen Mother went into her old age, she______.
A. was tired of peaceful life
B. began to show interest in fishing
C. was very luxury（奢侈）
D. looked down upon many things people had done
74. Which of the following is NOT mentioned in the passage?
A. George VI became king of Britain when his wife was in her late thirties.
B. Queen Mother hadn’t expected her husband to become a king.
C. Buckingham Palace was burned to the ground during the World War II .
D. Queen Mother showed bravery in face of the World War II.
75. From the passage we know that Queen Mother was______.
A. humorous and brave     B. talkative and humorous
C. talkative but shy               D. brave but shy

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D
　There was a story many years ago of a school teacher--- Mrs. Thompson. She told the children on the first day that she loved them all the same. But that was a lie. There in the front row was a little boy named Teddy Stoddard. He didn’t play well with the other children and he always needed a bath. She did not like him.
Then Mrs. Thompson got to know that Teddy was actually a very good boy before the death of his mother. Mrs. Thompson was ashamed of herself. She felt even worse when, like all her other students, Teddy brought her a Christmas present too. It was his mother’s perfume.
Teddy said, “Mrs. Thompson, today you smell just like my Mom used to.” After the children left ，she cried for at least an hour. On that very day, she stopped teaching reading, writing and math. Instead, she began to teach children.
Mrs. Thompson paid particular attention to Teddy. The boy’s mind seemed to come alive. The more she encouraged him, the faster he improved. By the end of the sixth grade, Teddy had become one of the smartest children in the class.
Six years went by before she got a note from Teddy. He wrote that he had finished high school, third in his class, and she was still the best teacher he ever had in his whole life. He went to college. Mrs. Thompson got two more letters from him with the last one signed, Theodore F. Stoddard, M. D.
The story doesn’t end there. On his wedding day, Dr. Stoddard whispered in Mrs. Thompson’s ear, “Thank you, Mrs. Thompson, for believing in me. You made me feel important and showed me that I could make a difference.”
Mrs. Thompson, with tears in her eyes, whispered back, “Teddy, you have it all wrong. You were the one who taught me that I could make a difference. I didn’t know how to teach until I met you.”
68. What did Mrs. Thompson do on the first day of school?
A. She made Teddy feel ashamed.
B. She asked the children to play with Teddy.
C. She changed Teddy’s seat to the front row.
D. She told the class something untrue about herself.
69. What did Mrs. Thompson find out about Teddy?
A. He often told lies.
B. He was good at math.
C. He needed motherly care.
D. He enjoyed playing with others.
70. In what way did Mrs. Thompson change?
A. She taught fewer school subjects.
B. She became stricter with her students.
C. She no longer liked her job as a teacher.
D. She cared more about educating students.
71. Why did Teddy thank Mrs. Thompson at his wedding?
A. She had kept in touch with him.
B. She had given him encouragement.
C. She had sent him Christmas presents.
D. She had taught him how to judge people.

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