.
The African elephant, the largest land animal remaining on earth, is of great importance to African eco-system. Unlike other animals, the African elephant is to a great degree the builder of its environment. As a big plant-eater, it largely shapes the forest-and-savanna（大草原）surroundings in which it lives, therefore setting the terms of existence for millions of other animals and live in its habitat.
It is the elephant’s great desire for food that makes it a disturber of the environment and an important builder of its habitat. In its continuous search for the 300 pounds of plants it must have every day, it kills small trees and under-bushes, and pulls branches off big trees. This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas. In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.
Take the rain forests for example. In their natural state, the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor. By pulling down trees and eating plants, elephants make open spaces, allowing new plants to grow on the forest floor. In such situations, the forests become suitable for large hoofed（有蹄的）plant-eaters to move around and for small plant-eaters to get their food as well.
What worries scientists now is that the African elephant has become an endangered species. If the elephant disappears, scientists say, many other animals will also disappear from vast areas of forest and savanna, greatly changing and worsening the whole eco-system.
66. What’s the passage mainly about?
A. Disappearance of African elephants.
B. Forests and savannas as habitats for African elephants.
C. The effect of African elephants’ search for food.
D. The eating habit of African elephants.
67. What does the underlined phrase “setting the terms” in the first paragraph most probably mean?
A. fixing the time. B. worsening the situation.
C. Improving the quality. D. Deciding the conditions.
68. What do we know about the open spaces in the passage?
A. They result from the destruction of rain forests.
B. They provide food mainly for African elephants.
C. They are home to many endangered animals.
D. They are attractive to plant-eating animals of different kinds.
69. According to the passage, which of the following statements is TRUE?
A. The African elephant has become extinct.
B. African elephants have 300 pounds of plants every day, including small trees and under-bushes.
C. The African elephant is in a way the builder of the environment like other land animals.
D. If the African elephant disappears, the whole eco-system won’t be affected.
70. The passage is developed mainly by _________.
A. presenting figures
B. pointing out similarities and differences
C. describing the changes in the order of space
D. giving examples
.
第二节（共3小题；每小题2分，满分6分）
阅读下面短文，简要回答问题。
The World Health Organization estimates (估计) 20,000,000 babies are born too small each year. It says a baby weighing less than 2,500 grams at birth has a less than desirable weight for good health. 95 percent of such children are born in developing countries.
One recent study shows that pregnant (怀孕的) women in developing countries have healthier babies if the women are given vitamins. Researchers from the United States and Tanzania found that vitamins could help reduce low birth weight. Their findings were reported last month in The New England Journal of Medicine.
Wafaie Fawzi of the Harvard School of Public Health led the study. Professor Fawzi says low birth weight can cause serious health problems in babies. He says low birth weight has been linked to poor growth and mental development, and even early death.
There are fourteen kinds of vitamins. People who do not get enough of these chemicals in their food, or want more, often take multivitamins (多种维生素).In the study, multivitamin pills were given to 4,200 pregnant Tanzanian women.The pills contained all the Bvitamins,as well as vitamins C and E. They also embodied iron and other nutrients in levels several times higher than advised for women in industrial nations.
Four thousand other women received a harmless substance(物质). None of the women had the virus that causes the disease AIDS.
68．On what condition can pregnant women in developing countries have healthier babies?
___________________________________________________________________________
69．According to Fawzi, what results will low birth weight lead to?(回答词数不超过10个)
______________________________________________________________________________
70．What is the main idea of the passage?(回答词数不超过8个)
___________________________________________________________________________
.
Valuing water
Human beings use a little less than half the water available worldwide. Yet shortages and droughts(干旱) are causing starvation and poverty in some areas, and industrial and agricultural by-products are polluting water supplies. Since the world’s population is expected to double in the next 51 years, many experts think we are on the edge of a widespread water crisis.
But that doesn’t have to be the result. Water shortages do not have to trouble the world—if we start valuing water more than we have in the past. Just as we began to value petrol more after the 1970s oil crisis, today we must start looking at water from a fresh economic view. We can no longer afford to consider water a nearly free resource of which we can use as much as we like in any way we want.
Instead, for all uses except the demand of the poor, governments should price water to reflect its real value. This means charging a fee for the water itself as well as for the supply costs.
Governments should also protect this source by providing water in more economically and environmentally sound ways. For example, often the cheapest way to provide irrigation(灌溉) water in the dry places is through small-scale projects, such as gathering rainfall in depressions(凹地) and pumping it to nearby cropland.
No matter what steps governments take to provide water more efficiently, they must change their ways to use water. Rather than control hundreds or even thousands of local, regional agencies that watch water use, countries should set up central authorities to manage water policy.
65. What is the real cause of the potential water crisis?
A. Only half of the world’s water can be used.
B. The world population is increasing faster and faster.
C. Half of the world’s resources have been seriously polluted.
D. Human beings have not placed sufficient value on water resources.
66.We can conclude from the passage that the water problem______.
A. is already serious in certain parts of the world
B. has been exaggerated by some experts in the field
C. poses a challenge to the technology of building reservoirs
D. is underestimated by government organizations at different levels
67.According to the author, the water price should______.
A. be reduced to the minimum
B. stimulate domestic demand
C. equal its real value
D. take into account the occurrences of droughts.
.
The days of the hunter are almost over in India. This is partly because there is practically nothing left to kill, and partly because some steps have been taken, mainly by banning tiger-shooting to protect those animals which still survive.
Some people say that Man is naturally a hunter. I disagree with this view. Surely our earliest forefathers, who at first possessed no weapons, spent their time digging for roots, and were no doubt themselves often hunted by meat-eating animals.
I believe the main reason why the modern hunter kills is that he thinks people will admire his courage in overpowering dangerous animals. Of course, there are some who truly believe that the killing is not really the important thing, and that the chief pleasure lies in the joy of the hunt and the beauties of the wild countryside. There are also those for whom hunting in fact offers a chance to prove themselves and risk death by design; these men go out after dangerous animals like tigers, even if they say they only do it to rid the countryside of a threat. I can respect reasons like these, but they are clearly different from the need to strengthen your high opinion of yourself.
The greatest big-game hunters expressed in their writings something of these finer motives. One of them wrote.
“You must properly respect what you are after and shoot it cleanly and on the animal’s own territory(领地)。You must fix forever in your mind all the wonders of that particular day.This is better than letting him grow a few years older to be attacked and wounded by his own son and eventually eaten, half alive, by other animals. Hunting is not a cruel and senseless killing – not if you respect the thing you kill, not if you kill to enrich your memories, not if you kill to feed your people.”
I can understand such beliefs, and can compare these hunters with those who hunted lions with spears and bravely caught them by the tail. But this is very different from many tiger—shoots I have seen, in which modern weapons were used. The so—called hunters fired from tall trees or from the backs of trained elephants. Such methods made tigers seem no more dangerous than rabbits.
63．Theere is no more hunting in India now partly because___.
A．it is dangerous to hunt there
B．hunting is already out of date
C．hunters want to protect animals
D．there are few animals left to hunt
64．The author thinks modern hunters kill mainly .
A．to make the countryside safe B．to earn people’s admiration
C．to gain power and influence D．to improve their thelth
65．What do we learn about the big-game hunters?
A．They hunt old animals B．They mistreat animals
C．They hunt for food D．They hunt for money
66．What is the author’s view on the tiger-shoots he has seen?
A．Modern hunters lack the courage to hunt face-to-face
B．Modern hunters should use more advanced weapons
C．Modern hunters like to hunt rabbits instead of tigers
D．Modern hunters should put their safety first
.
Some American schools paid teachers more if their students improved on
tests. Now there is a growing movement to pay the students --- in some cases, even just for coming to class.
Students at one school in New Mexico can earn up to three hundred dollars a year for good attendance. A program in New York City pays up to five hundred dollars for good attendance and high test scores.
In Baltimore, Maryland, high scores on state graduation tests can be worth more than one hundred dollars. And a New Jersey school system plans to pay students fifty dollars a week to attend after-school tutoring programs. Schools that pay students can be found in over one-fourth of the fifty states. Other state schools reward students with food or other things.
Robert Schaefer is public education director for the National Center for Fair and Open Testing, an activist group. He says paying may improve performance in the short term, but students develop false expectations for the future. He sees a lack of long-term planning in these programs because of pressure on schools to raise test scores.
Public schools need to show improvement under the education reform law. Low-performing schools may lose their federal money; teachers and administrators may lose their jobs. Often these schools are in poor neighborhoods where getting students to go to school can be a continual problem.
Critics say paying students sends a message that money is the only valuable reward. But some students say it makes school more exciting. And some teachers have reported getting more requests for extra help.
60. What is the passage mainly about?
A. Some American schools pay teachers more for improving students’ scores.
B. Some American schools pay students for good attendance and high test scores.
C. Public schools need to improve their teaching management.
D. Some American schools pay teachers for after-school tutoring programs.
61. In _________ of the fifty states, schools pay the students.
A. less than one half B. less than ten
C. more than ten D. more than one half
62. We can learn from the text that _________.
A. all the people are in favor of the movement to pay the students.
B. not all the people think the movement to pay the students is good
C. in New York City students can get food for high test scores.
D. teachers can’t lose their jobs in some schools in American poor neighborhoods
63.The text is probably taken from_________.
A. education report B. health report
C. information report D. science news
.
第三部分阅读理解 (共15小题；每小题2分，满分30分)
请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Why You Should Celebrate Your Mistakes
When you make a mistake, big or small, cherish (珍视) it like it’s the most precious thing in the world. Because in some ways, it is.
Most of us feel bad when we make mistakes, beat ourselves up about it, feel like failures, get mad at ourselves.
And that’s only natural: most of us have been taught from a young age that mistakes are bad, that we should try to avoid mistakes. We’ve been scolded when we make mistakes—at home, school and work. Maybe not always, but probably enough times to make feeling bad about mistakes an unconscious reaction.
Yet without mistakes, we could not learn or grow. If you think about it that way, mistakes should be cherished and celebrated for being one of the most amazing things in the world: they make learning possible; they make growth and improvement possible.
By trial and error—trying things, making mistakes, and learning from those mistakes—we have figured out how to make electric light, to paint the ceiling of the Sistine Chapel, to fly.
Mistakes make walking possible for the smallest toddler, make speech possible, make works of genius possible.
Think about how we learn: we don’t just consume information about something and instantly know it or know how to do it. You don’t just read about painting, or writing, or computer programming, or baking, or playing the piano, and know how to do them right away. Instead, you get information about something, from reading or from another person or from observing usually … then you construct a model in your mind … then you test it out by trying it in the real world … then you make mistakes … then you revise the model based on the results of your real-world experimentation … and repeat, making mistakes, learning from those mistakes, until you’ve pretty much learned how to do something. That’s how we learn as babies and toddlers, and how we learn as adults. Mistakes are how we learn to do something new—because if you succeed at something, it’s probably something you already knew how to do. You haven’t really grown much from that success—at most it’s the last step on your journey, not the whole journey. Most of the journey was made up of mistakes, if it’s a good journey.
So if you value learning, if you value growing and improving, then you should value mistakes. They are amazing things that make a world of brilliance possible.
56. Why do most of us feel bad about making mistakes?
A. Because mistakes make us suffer a lot.
B. Because it’s a natural part in our life.
C. Because we’ve been taught so from a young age.
D. Because mistakes have ruined many people’s careers.
57. According to the passage, what is the right attitude to mistakes?
A. We should try to avoid making mistakes.
B. We should owe great inventions mainly to mistakes.
C. We should treat mistakes as good chances to learn.
D. We should make feeling bad about mistakes an unconscious reaction.
58. The underlined word “toddler” in Paragraph Six probably means _______.
A. a small child learning to walk B. a kindergarten child learning to draw
C. a primary pupil learning to read D. a school teenager learning to write
59. We can learn from the passage that _______.
A. most of us can really grow from success
B. growing and improving are based on mistakes
C. mistakes are the most precious things in the world
D. we read about something and know how to do it right away
.
第三部分：阅读理解（共15小题；每小题2分，共30分）
阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Mark was walking home from school one day when he noticed the boy ahead of him had tripped （绊倒）and dropped all of the books he was carrying, along with two sweaters, a baseball bat, a glove and a small tape recorder. Mark knelt down and helped the boy pick up the scattered （散落的）articles. Since they were going the same way, he helped to carry part of the burden. As they walked Mark discovered the boy’s name was Bill, that he loved video games, baseball and history, and that he was having lots of trouble with his other subjects and that he had just broken up with his girlfriend.
They arrived at Bill’s home first and Mark was invited in for a Coke and to watch some television. The afternoon passed pleasantly with a few laughs and some shared small talk, then Mark went home. They continued to see each other around school, had lunch together once or twice, then both graduated from the junior high school. They ended up in the same high school where they had brief contacts over the years. Finally the long awaited senior year came and three weeks before graduation, Bill asked Mark if they could talk.
Bill reminded(提醒) him of the day years ago when they had first met. “Did you ever wonder why I was carrying so many things home that day?” asked Bill. “You see. I had stored away some of my mother’s sleeping pills and I was going home to kill myself. But after we spent some time together talking and laughing, I realized that if I had killed myself, I would have missed that time and so many others that might follow. So you see, Mark, when you picked up those books that day, you did a lot more, you saved my life.”
56. Mark helped Bill _______ on his way home.
A. read all his books B. play baseball in a game
C. buy two sweaters and a glove D. pick up the scattered articles
57. They watched TV, and drank Coke _______.
A. at Bill’s home B. at Mark’s home C. at school D. at the college
58. Bill wanted to kill himself by _______.
A. carrying many things home B. taking sleeping pills
C. cleaning his locker D. talking and laughing
59. We learn from the passage that _______.
A. Mark saved Bill’s life
B. Bill’s mother asked him to die
C. Bill’s girlfriend carried books for him
D. Mark wanted to commit suicide, too
Some people who find themselves facing a problem react by just giving up. But it is not good to escape from problems by giving up or by making excuses for failures. You may be sure that all young people go through the same difficult process that you are going through: meeting new situations, developing new skills, and testing their abilities.
If you are unhappy about something, face it. Try to state the problem in a few words, so that you will know exactly what you are up against. Then see if you can “put your finger” on the cause of your unhappiness.
In many cases, we only “think” there is no solution to a particular problem. But often we can overcome the problem and achieve the goal by making a direct attack.
For example, a boy wanted to be a debater(辩论家). When he tried out for the debating team as a freshman, the coach thought he was hopeless. He was shy; he had a high-pitched voice; and his posture(体态) was poor. Although he was given little hope of success, he took advantage of every opportunity to debate. He studied successful speakers and evaluated his own weaknesses and advantages. Then he spent many hours learning all the facts on the topics for debate, and worked at developing good posture and at speaking clearly. By his junior year, he made the school debating team, and in his senior year he was on the winning team in his state. He achieved his goal because he had made a direct attack upon his problem.
Although direct attack is often the best way to meet problems, we have to be realistic(现实的) in judging situations. Sometimes it is necessary to change either the method or the goal.
A boy who wants to be a great football player may not be too strong and not quite fast enough for football. In this situation, becoming a great football player may be an unreasonable goal for him. However, he may become outstanding in tennis or golf, and satisfy his desire to take part in sports.
A girl who is not good-looking may decide that she cannot win popularity with her face, and so she may try to develop an interesting personality, which eventually will get her much further. In this situation, she must change her method of achieving her goal.
So, although direct attack is often the best way to handle problems, it is important to study the situation and make a wise decision about what to do.
63. From the first paragraph, we can infer that .
A. not all people will meet the problems that they can’t solve
B. not all people can solve the problems that they meet
C. all people will not give up finding the solutions to problems
D. all people will make some excuses for failures
64. The underlined phrase “are up against” in the second paragraph could be best replaced by .
A. are dealing with B. are faced with C. meet with D. look after
65. Which of the following best shows the structure of the text?
(①-⑧ stand for “paragraph 1—paragraph 8”)
A. ① B. ①
② ② ③
③④ ⑤⑥⑦⑧ ④⑤ ⑥⑦⑧
C. ① D. ①
② ② ③
③④⑤ ⑥⑦⑧ ④⑤⑥ ⑦⑧
66. Which of the following is not right?
A. When we meet difficulties, it is the best to give a direct attack.
B. If a girl is not good looking, she’d better change her style of appearance.
C. Whenever we face difficulty, we can find a way out, whatever it is.
D. Both a direct attack and a good analysis of the reality are good for solving problems.
Taste is such a subjective matter that we don’t usually conduct preference tests for food. The most you can say about anyone’s preference, is that it’s one person’s opinion. But because the two big cola companies—Coca-Cola and Pepsi Cola--- are marketed so aggressively, we’ve wondered how big a role taste preference actually plays in brand loyalty. We set up a taste test that challenged people who identified themselves as either Coca-Cola or Pepsi fans: Find your brand in a blind tasting.
We invited staff volunteers who had a strong liking for either Coca-Cola Classic (传统型) or Pepsi, Diet (低糖的) Coke, or Diet Pepsi. These were people who thought they’d have no trouble telling their brand from the other brand.
We eventually located 19 regular cola drinkers and 27 diet cola drinkers. Then we fed them four unidentified samples of cola one at a time, regular colas for the one group, diet versions for the other. We asked them to tell us whether each sample was Coke or Pepsi; then we analyzed the records statistically to compare the participants’ choices with what mere guess-work could have accomplished.
Getting all four samples right was a tough test, but not too tough, we thought, for people who believed they could recognize their brand. In the end, only 7 out of 19 regular cola drinkers correctly identified their brand of choice in all four trials. The diet-cola drinkers did a little worse-only 7 of 27 identified all four samples correctly.
Both groups did better than chance would predict,but nearly half the participants in each group made the wrong choice two or more times. Two people go all four samples wrong. Overall, half the participants did about as well on the last round of tasting as on the first, so tiredness, or taste burnout, was not a factor. Our preference test results suggest that only a few Pepsi participants and Coke fans may really be able to tell their favorite brand by taste and price.
67. According to the passage the preference test was conducted in order to ________.
A.show that a person’s opinion about taste is mere guesswork
B.compare the ability of the participants in choosing their drinks（A）
C. find out the role taste preference plays in a person’s drinking
D.reveal which cola is more to the liking of the drinkers
68. The statistics recorded in the preference tests show that________.
A. there is not much difference in taste between Coca-Cola and Pepsi
B. few people had trouble telling Coca-Cola from Pepsi
C. people’s tastes differ from one another
D. Coca-Cola and Pepsi are people’s two most favorite drinks
69. It is implied in the first paragraph that ________.
A. the competition between the two colas is very strong
B. blind tasting is necessary for identifying fans
C. the purpose of taste tests is to promote the sale of colas
D. the improvement of quality is the chief concern of the two cola companies
70. The author’s purpose in writing this passage is to ________.
A. emphasize that taste and price are closely related to each other
B. recommend that blind tasting be introduced in the quality control of colas
C. show that taste preference is highly subjective
D. argue that taste testing is an important marketing strategy
A healthy dose of sunshine may be the secret to staying young, British scientists have disclosed.
Vitamin D is produced naturally by the skin in response to sunlight and may help to slow the ageing process and protect against heart disease, according to the study.
Researchers from King's College London studied 2,160 women aged between 18 and 79, looking at their telomeres - a biological marker of ageing found in DNA．As people get older, their telomeres get shorter and they are easy to have illnesses.
But the study found women with high levels of vitamin D had comparatively longer telomeres - a sign of being biologically younger and healthier.
The study suggests vitamin D may help to slow down the ageing process of DNA, and therefore the ageing process as a whole.
Lead researcher Dr Brent Richards said: "These results are exciting because they prove for the first time that people who have higher levels of vitamin D may age more slowly than people with lower levels of vitamin D．
"This could help to explain how vitamin D has a protective effect on many ageing related diseases, such as heart disease and cancer."
He said further studies are required to confirm the findings.
Professor Tim Spector, head of KCL's twin research unit, and a co-author of the report, added: "Although it might sound absurd(荒谬的), it's possible that the same sunshine which may increase our risk of skin cancer may also have a healthy effect on the general ageing process."
Vitamin D made by the action of sunlight on the skin accounts for 90 per cent of the body's supply, but lower levels can also be obtained through food such as fish, eggs and breakfast cereals.
Other studies have suggested the vitamin plays a key role in protecting against cancer and heart disease.
58.What’s the best title of this passage?
A.Sunshine helps to keep you young.
B.Vitamin D has a protective effect on many diseases.
C.Telomeres - a biological marker of ageing.
D.People have found the secret to having a long life.
59.How can people get Vitamin D?
A.through water. B. through sunshine.
C.through food. D.both B and C.
60.Which of the following is not true according to the passage?
A.women with high levels of vitamin D shows a sign of being biologically younger and healthier.
B.vitamin D has a protective effect on many ageing related diseases.
C.too much sunshine may increase our risk of skin cancer.
D.It has been proved that sunshine helps to keep you young.
第二节：（共5小题，每小题2分，满分10分）
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．Goods for auction (拍卖) sales |
| B．Definition of bidding |
| C．Way to sell more goods by auction |
| D．Auction sales in history |
E. Brief introduction to auctions
F. Making a larger profit as an auctioneer
61. ______
Auctions are public sales of goods, conducted by an officially approved auctioneer. He asks the crowd assembled in the auction-room to make offers, or “bids”, for the various items on sale. He encourages buyers to bid higher figures, and finally names the highest bidder as the buyer of the goods. This is called “knocking down” the goods, for the bidding ends when the auctioneer strikes a small hammer on a table at which he stands.
62. ______
The ancient Roman probably invented sales by auction, and the English word comes from the Latin auction, meaning “increasing”. The Romans usually sold in this way the goods taken in war. In England in the eighteenth centuries, goods were often sold “by the candle”: a short candle was lit by the auctioneer, and bids could be made while it stayed alight.
63. ______
Practically all goods whose qualities vary are sold by auction. Among these are coffee, skins, wool, tea, furs, silk and wines. Auction sales are also usual for land and property, furniture, pictures, rare books, old china and similar works of art.
64. ______
An auction is usually advertised beforehand with full particulars of the articles to be sold and where and when they can be viewed by potential buyers. If the advertisement cannot give full details, catalogues are printed, and each group of goods to be sold together, called a “lot”, is usually given a number. The auctioneer need not begin with Lot 1 and continue in the order of numbers: he may wait until he notices the fact that certain buyers are in the room and then produce the lots they are likely to be interested in.
65. ______
The auctioneer’s services are paid for in the form of a percentage of the price the goods are sold for. The auctioneer therefore has a direct interest in pushing up the bidding as high as possible. He will not waste time by starting the bidding too low. He will also play on the opponents among his buyers and succeed in getting a high price by encouraging two business competitors to bid against each other.
第二节（共5小题，每小题2分，满分10分）
根据短文内容，从下框的A—F选项中选出能概括每一段主题的最佳选项。选项中有一项为多余选项。
| A．Environment protection |
| B．Driving experience |
| C．Self – driving |
| D．Safety |
E. Computing and communications
F. Wireless communications
|
61．
Today, the Internet is in a few cars; tomorrow, broadband (宽带) will be in all of them. Any capability a personal computer has, a car will have, including two – way wireless communications for receiving e – mail, music, and movies. When you’re crossing the lonely place, the kids can watch TV if they’re bored. Every passenger will have a video feed.
|
62．
Every car will have a self – driving system linked to GPS satellites. Radar sensors (传感器) will track nearby cars. On the freeway, they’ll slow your car when the car ahead of you slows; in town, they’ll help you park without hitting other cars. At rush hour, you’ll get the routes around traffic jams and accidents. The self – driving system in a car makes it possible for the car to drive itself, though some scientists say that’s 30 to 40 years off.
|
63．
Motor vehicles today represent 20 to 30 percent of the world’s energy use. In the near future, a small gasoline engine and an electric motor will be brought together. Drivers will use electricity in a storage battery for short distances. Longer term, cars might burn hydrogen or use a fuel cell that converts a fuel like hydrogen and combines it with oxygen to create power. Then the waste will be pure water.
|
64．
You’ll use the voice control: “Make it a bit cooler” or “find me country music”. Lighter, more reliable electronic controls replace mechanical controls. Fiber optics (光纤) replace electrical wires and light bulbs. Seats will be air – conditioned. The car will travel with one side higher than the other when turning, just as an airplane does now.
|
65．
Cars will avoid some accidents by maintaining safe following distances, and by sensing sleepy or drunk drivers. Air bags will adapt for every passenger according to their size, weight, and position in case accidents happen.How to protect children Web fans from unsuitable material online while encouraging them to use the Internet has long been discussed in the US.
For some parents, the Internet can seem like a jungle, filled with danger for their children. But jungles contain wonders as well as danger and with good guides, some education, and a few precautions (预防), the wilds of the Internet can be safely navigated. “Kids have to be online. If we tell our kids they can't be allowed to surf the Internet, we're cutting them off from their future,” said an expert.
Most kids have started to use search engines. Many of them are great for finding tons of interesting Internet sites, and they can also locate places where you might not want your kids to go. There are search engines designed just for kids. A certain software contains only sites that have been selected as safe. The most popular way would be to use what is known as a “content screener”. But this can't be wholly reliable (可靠), and the best thing parents can do is to talk to their kids and let them know what is OK or not OK to see or do on the Internet. Another way is that mum or dad is nearby when the child is surfing the Internet.
A few other tips:
—Don't put the PC in a child's room but keep it in an area where mum or dad can keep an eye on things. That also makes the Internet more of a family activity.
—Ask your child what he or she has been doing and about any friends they make online.
—Tell your child not to give online strangers personal information, especially like address and phone number.
And tell your children never to talk to anyone they meet online over the phone, send them anything, accept anything from them or agree to meet with them unless you go along.
57. What is the main subject about the passage?
A. Opposing(反对) children's online. B. Internet in America.
C. American children going online. D. Appreciating(欣赏) the Internet.
58. What is the best way to protect children from improper material?
A. To talk to the children and persuade them to tell right from wrong.
B. To be nearby when they are surfing the Internet.
C. To fix a content screener on the computer.
D. To buy some search engines for children.
59. Which of the following is right according to the passage?
A. Surfing the Internet is the best way of educating children.
B. Using a content screener is most reliable for keeping children having ways to the Internet.
C. Searching engines can help children to select materials fit for them.
D. Children's not having chances to go to the Internet may have effect on their progress.
60.According to the passage, we can infer that_______.
A. softwares fit for children want programming
B. the Internet contains a lot of harmful sites
C. the Internet will be protected by law
D. a child who is online is in danger
Going to the beach is many American’s favorite activity. They went swimming in the ocean without giving a thought to what was underwater. But those days are long gone. In the summer of 1988, many of the beaches had to be closed because garbage（废料）from hospitals was found in the water. The garbage included glass bottles with samples of blood, and people were afraid they might get AIDS from the blood. At some beaches, sewage（下水道）was found in the water. Americans were shocked by this state of affairs. People didn’t think of the underwater garbage because it was out of sight.
Some of the most polluted waters still look beautiful. San Francisco Bay is a good example of a beautiful bay that’s full of chemicals. Scientists discovered pollution in some lakes and rivers when they found fish with rotting skin. People are told not to eat too much fish because of pollution. Most American cities put their garbage in the ground. But New York and a few other cities put their garbage in the ocean. Boston Harbor is so polluted that scientists say it won’t recover until the next century. The government has ordered the city to build a sewage treatment plant, Cleaning up oceans won’t be easy, but people can no longer ignore（忽视）this challenge.
63. The main idea of the article is that _____.
A. ocean waters around America have become polluted.
B. Americans are bringing too much garbage to the beach.
C. beaches were closed because Americans were shocked.
D. going to the beach is many American’s favorite activity.
64. The oceans are polluted by _____.
A. swimmers, AIDS patients and fish.
B. Boston, San Francisco and New York only.
C. garbage, sewage and medical waste and so on.
D. swimmers and fishes
65. Many polluted waters are beautiful because _____.
A. chemicals can be beautiful.
B. they have been cleaned up.
C. pollution is underwater or hard to see.
D. there are still many fish in them
66. More people can go to the beaches near Boston if _____.
A. the city puts its garbage in the ground
B. a sewage plant is built
C. they don’t eat too much fish
D. they stop polluting the water
The cost of rice is expected to go up in the coming months, as an improving global economy raises demand, and drought (旱灾) cuts production in countries such as India. Some economists say prices for rice, the Precision Castingstaple food for much of the world's population, could be returning to levels that sparked inflation(通货膨胀) fears in much of Asia last year.
Charuk Singhapreecha is dean of the faculty (系)of economics at Thailand’s Kasetsart University. He says prices – especially for Thai rice – are being pushed higher by new customers coming into the market after the economic slowdown of the past year. They expect that the world demand will increase andCast steel we expect that the price of rice will increase next year," Charuk said. "There are many new markets for the Thai rice and also we still have for our old customer - China, some Arab countries - they will increase the demand."
Prices on the global market could again near the record above $1,000 a ton set in the middle of 2008. This month, export prices for Southeast Asian rice have jumped from about $550 a ton or less to more than $650.
Vichai Sriprasert, president of the Thai Rice Exporters Association, says further weakness in the US dollar and concerns over drought add to pressure on prices. Market experts say next year India is likely to try to import three million tons of rice – entering the world market for the first time in 21 years – because of a drought.
Vichai also warns that increasing demand for bio-fuels(生物燃料) from grain could reduce food crops, forcing the price of food grains higher. "This is very serious. That's why the price of rice will not go back to the level that we used to see," Vichai said. "It will have to be elevated at a higher level, but I don't know where."
The Philippines this week said it is cutting rice imports because of high prices, even though the country lost more than a million tons of grain to typhoons this year. Officials from Vietnam, a leading export competitor with Thailand, predict prices will reach about $800 a ton by the middle of 2010. This week the Philippines' National Food Authority offered almost $665 a ton for 600,000 tons of Vietnamese rice.
Economists say higher food prices will only increase the problems faced by the region's poor, who are highly dependent on rice as a staple food.
68．Which of the following is NOT true according to paragraph 1?
A．Drought reduces production of rice in India.
B．Prices for rice were lower all the time in 2008.
C．Rice is a major food for the world’s population.
D．The improving global economy increases the need for rice.
69．How many reasons did Vichai mention about rice price’s going up?
A．1. B．2. C．3. D．4.
70．Why does the Philippines plan to cut rice imports?
A．Because of high prices. B．Because of typhoons.
C．Because of civil war. D．Because of drought.
71．What’s the best title of the passage?
A．Higher food prices will increase problems
B．There are many new markets for the Thai rice
C．The global economy is improving
D．Prices for rice are expected to rise
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