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But many experts now believe that a low-fat diet that's high in sugar,has actually led to an inc
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更多“But many experts now believe that a low-fat diet that's high in sugar,has actually led to an inc”相关的问题
第1题
Diarrhea(腹泻) is the main cause of death among children in developing countries. Diarrhea results when the body tries to clear itself of harmful bacteria (细菌). The body does this by getting out liquids, sometimes uncontrollably. If too much water, sugar and salt are lost in this way, the body cannot work normally. The child may die.
The United Nations International Children's Fund, UNICF, introduces a technique. It uses a simple mixture of sugar and salt in water. The mixture does not stop diarrhea. But if used often as needed, it keeps fluid (体液) levels normal until the body has fought off the harmful bacteria.
In Egypt, for example, the treatment was used in a children’s health care program in the province of Alexandria. It reduced by one-half the number of deaths caused by diarrhea. The technique has now been used throughout tile country.
According to the passage, a large number of Children can be saved only when ______.
A．the life-saving ways are medically effective
B．their parents are rich enough for the life-saving techniques
C．the life-saving techniques are easy to use
D．their parents learn the life-saving techniques
第2题
Many parents will say no to this demand. But experts say it might be a good idea to let your teens live with a friend or relative.
"It was the break I needed at the time," said Richard Lerner. He is talking about the time he spent living with his grandmother when he was 15.
"It allowed me to be a different person than I was with my parents." Lerner said. He now heads the Institute for Children, Youth and Families at Michigan State University.
Experts say teens living away from their families can test new ways of thinking and getting along with people. They may see new solutions (解答) to problems.
This is different from running away, the experts stress. Runaways are often fleeing serious problems.
Some teens who want some time away from family attend a structured summer program. Others live for a while with a relative or with the family of a friend.
If there is conflict (冲突) at home, having a teen live elsewhere can benefit other family members. It gives everyone space to develop better relationships.
Joseph Kett teaches history at the University of Virginia in Charlottesville. He says living at home until the late teen years has become the norm (准则) only in recent times.
"In the 17th century, children were often sent to live in other people's homes when they were about 10 or 11," he said.
Peter Sheras teaches education at the University of Virginia. He said parents should listen when a child wants to move out. They should try to find out why the child wants some time away.
Often, parents can help the child find a safe place to stay during that time. In other cases, they can meet the child's needs at home.
According to this passage, many parents think it ______ for their children to live away from them.
A．right
B．happy
C．unsafe
D．reasonable
第3题
But even with such successes, the United States still has one of the worst fire death rates in the world. Safety experts say the problem is neither money nor technology, but the indifference of a country that just will not take fires seriously enough. American fire departments are some of the world's fastest and best-equipped. They have to be. The United States has twice Japan's population, and 40 times as many fires. It spends far less on preventing fires than on fighting them. And American fire-safety lessons are aimed almost entirely at children, who die in disproportionately large numbers in fires but who, contrary to popular myth, start very few of them.
Experts say the fatal error is an attitude that fires are not really anyone's fault. That is not so in other countries, where both public education and the law treat fires as either a personal failing or a crime. Japan has many wood houses; of the estimated 48 fires in world history, that burned more than 10,000 buildings, Japan has had 27. Penalties for causing a severe fire by negligence can be as high as life imprisonment.
In the United States, most education dollars are spent in elementary schools. But the lessons are aimed at a too limited audience; just 9 percent of all fire deaths are caused by children playing with matches.
The United States continues to rely more on technology than laws or social pressure. There are smoke detectors in 85 percent of all homes. Some local building codes now require home sprinklers. New heaters and irons shut themselves off if they are tipped.
The reason why so many Americans die in fires is that______.
A．They took no interest in new technology
B．they did not attach great importance to preventing fires
C．they showed indifference to fighting fires
D．they did not spend enough money on fire facilities
第4题
Some say it came from the Indian peoples. When Europeans first came to America they heard hundreds of different Indian languages. Many were will developed.
One tribe especially had a well developed language. This was the Chocktaw tribe. They were farmers and fishermen whole lived in the rich Mississippi valley in what is now the state of Alabama. When problems arose, Chocktaw leaders discussed them with the tribal chief. They sat in a circle and listened to the wisdom of the chief.
He heard the different proposals, often raising and lowering his head in agreement, and saying, "Okeh," meaning "it is so."
The Indian languages have given many words to English. Twenty four of the American States almost half, have Indian names, Okalahoma, the Dakotas, Idaho, Wisconsin, Ohio and Tennessee, to name a few. And the names of many rivers, streams, mountains, cities and towns are Indian.
However, there are many people who dispute the idea that "Okay" came from the In di ans. Some say the President Andrew Jackson first used the word "Okay." Others claim the word was invented by John Jacob Astor, a fur trader of the late 1700s who became one of the world's richest men. Still others say a poor railroad clerk made up this word. His name was Obadiah Kelly and he put his initials(首写字母), O.K. on each package people gave him to ship by train.
So it goes, each story sounds reasonable and official.
But perhaps the most believable explanation is that the word "Okay" was invented by a political organization in the 1800s. Martin Van Buren was running for President. A group of people organized a club to support him. They called their political organization the "Okay Club. The letters "O" and "K" were taken from the name of Van Buren's hometown, the place where he was born, old Kinderhook, New York.
There is one thing about "Okay" that the experts do agree on: that the word is pure American and that it has spread to almost every country on earth.
There is something about the word that appeals to peoples of every language. Yet, here in America it is used mostly in speech, not in serious writing. In recent time, "Okay" has been given an official place in the English language. But it will be a long time before Americans will officially accept two expressions that come from "Okay." There are "Oke" and "Okeydoke".
______different opinions as where the word "Okay" came from are mentioned in the text.
A．Four
B．Five
C．six
D．Three
第5题
(80) Other experts feel that giving the worker freedom to do his job in his own way is important. There is no doubt that this is true. The problem is that this kind of freedom cannot easily be given in the modem factory with its complicated machinery which must be used in a fixed way. Thus, although freedom of choice may be important, usually very little can be done to create it.
Another important consideration is how much a worker contributes to the product he is making. In most factories the worker sees only one small part of the product. Some car factories are now experimenting with having many small production lines rather than a large one, so that each worker contributes more to the production of the cars on his line. It would seem that not only is degree of the worker's contribution an important factor, therefore, it is also one we can do something about. To what extent does more money lead to greater productivity？ The workers themselves certainly think this is important. But perhaps they want more money only because the work they do is so boring. Money just lets them enjoy their spare time more. A similar argument may explain demands for shorter working hours. Perhaps if we make their jobs more interesting, they will want neither more money nor shorter working hours.
Varied jobs, in writer's opinion, will ______.
A．offer greater productivity
B．drive workers to work harder
C．make workers more productive
D．make worker's life more enjoyable, but do not make them more hardworking
第6题
【M1】
第7题
New research published this week suggests that a relatively small stockpile of an anti-viral drug—as little as 3m doses—could be enough to limit sharply a flu pandemic if the drugs were deployed quickly to people in the area surrounding the initial outbreak. The drug's manufacturer, Roche, is talking to the World Health Organization about donating such a stockpile.
This is good news. But much more needs to be done, especially with a nasty strain of avian flu spreading in Asia which could mutate into a threat to humans. Since the SARS outbreak in 2003 a few countries have developed plans in preparation for similar episodes. But progress has been shamefully patchy, and there is still far too little international co-ordination.
A global stockpile of drugs alone would not be much use without an adequate system of surveillance to identify early cases and a way of delivering treatment quickly. If an outbreak occurred in a border region, for example, a swift response would most likely depend on prior agreements between different countries about quarantine and containment.
Reaching such agreements is rarely easy, but that makes the task all the more urgent. Rich countries tend to be better prepared than poor ones, but this should be no consolation to them. Flu does not respect borders. It is in everyone's interest to make sure that developing countries, especially in Asia, are also well prepared. Many may bridle at interference from outside. But if richer nations were willing to donate anti-viral drugs and guarantee a supply of any vaccine that becomes available, poorer nations might be willing to reach agreements over surveillance and preparedness.
Simply sorting out a few details now will have lives (and recriminations) later. Will there be enough ventilators, makes and drugs？ Where will people be treated if the hospitals overflow？ Will food be delivered as normal？ Too many countries have no answers to these questions.
The word "contained"(Paragraph 1) most probably means______.
A．checked
B．duplicated
C．included
D．forecast
第8题
The 1990s have been designated the Decade Against Drug Abuse by the United Nations. But, (1)_____ less than three years to go before the end of the decade, governments and health organizations (2)_____ that they have made (3)_____ progress in reducing drug, alcohol and tobacco abuse. Today, consumption of all these substances is increasingly steadily worldwide. (4)_____ every country now has problems with (5)_____ drugs. And the world is producing and consuming more alcohol and tobacco than ever. Between 1970 and 1990 beer production (6)_____ rose by over 80 per cent. And, (7)_____ the number of smokers keeps on (8)_____,by the second or third (9)_____ of the next century there could be 10 million deaths each year (10)_____ smoking related illnesses.
Drugs are also a huge burden (11)_____ the world economy. In the United States, for example, it's estimated that alcohol and illegal drug use costs the country tens of billions of dollars each year, mainly (12)_____ health care. When the cost of tobacco related illnesses is added, (13)_____ total more than doubles.
Drugs are also closely (14)_____ crime. Many police forces no longer (15)_____ between illegal and legal drugs when fighting crime. In Australia, for example, experts (16)_____ that police in some parts of the country spend between 70 and 80 percent of their time dealing with alcohol-related incidents.
One explanation for the increase in drug (17)_____ is simply that people have more money to spend. Tobacco and alcohol companies are now (18)_____ much more on developing countries to take (19)_____ of greater wealth there. And criminals involved in the illegal drug trade are following (20)_____, introducing drugs into countries where they were previously hardly use.
A．when
B．with
C．as
D．if
第9题
A very serious side effect of argumentative decision making can be a lack of support for the chosen course of action on the part of the "losing" faction. When one faction wins the meeting and the others see themselves as losing, the battle often doesn't end when the meeting ends. Anger, resentment, and jealousy may lead them to sabotage the decision later, or to reopen the debate at later meetings.
There is a better way. As philosopher Aldous Huxley said, "It isn't who is right, but what is right, that counts."
The structured-inquiry method offers a better alternative to argumentative decision making by debate. With the help of the Internet and wireless computer technology, the gap between experts and executives is now being dramatically closed. By actually putting the brakes on the thinking process, slowing it down, and organizing the flow of logic, it's possible to create a level of clarity that sheer argumentation can never march.
The structured-inquiry process introduces a level of conceptual clarity by organizing the contributions of the experts, then brings the experts and the decision makers closer together. Although it isn't possible or necessary for a president or prime minister to listen in on every intelligence analysis meeting, it's possible to organize the experts' information to give the decision maker much greater insight as to its meaning. This process may somewhat resemble a marketing focus group; it's a simple, remarkably clever way to bring decision makers closer to the source of the expert information and opinions on which they must base their decisions.
From the first paragraph we can learn that______.
A．executive, specialized expert, are no more clever than person in the street
B．very few people decide before they think
C．those who pride themselves on being decisive often fail to do so
D．people tend to consider carefully before making decisions
第10题
Scientists have found that the cause of this strange weather is that the air circulation pattern has changed and is now more variable than earlier in the twentieth century. This means that different regions of the world get long spells (持续时间) of the same type of weather, whether hot , cold, wet or windy.
However, weather experts have different views about why this has happened. One theory is that the temperature of the sea has increased. Another is that man’s activities on earth have disturbed the balance of nature.
Whatever the cause, the economics of many countries in the world depend upon the weather. And until we know exactly what effect man’s activities are having on the weather, we cannot make changes which might help. So for the moment the only answer is …wait and see!
26. Which of the following statements is TRUE according to the first paragraph？
A. We have never predicted the weather.
B. Man is now able to control the weather.
C. Strange weather has appeared only in some North American countries.
D. It has always been impossible for man to predict the weather accurately.
27. The strange weather patterns on the earth can he best described as ________.
A. steady and balanced C. likely to cause serious disasters
B. changeable but predictable D. unpredictable but favorable to man
28. The word “affecting” in Paragraph 1 can be replaced by ________.
A. yielding good crops in C. causing few losses in
B. having harmful effects on D. producing desired effects on
29. We can learn from Paragraph 2 that ________.
A. weather patterns are similar in different regions of the world
B. the air circulation pattern remains unchanged in the last century
C. our weather depends on the changes in the air circulation pattern
D. it is possible to predict weather patterns over a long period of time
30. It can be learned from this passage that ________.
A. scientists have similar opinions about the changing weather
B. no one is sure about the cause of the changing weather
C. cutting down forests has affected the climate
D. the weather will become worse in the future
