If you give something to someone for free, will that person value it and use it? Development experts have debated this question for decades. Some think the act of paying causes people to value something and use it more.
Selling necessary health treatments, others argue, may deny them to the people who need them the most.
Consider, for example, chemically treated bed nets, which kill mosquitoes anti protect people against malaria(疟疾)while they are sleeping. William Easterly, an economist at New York University, believes this is one example of development having gone wrong. In a recent book, Professor Easterly suggests bed nets given free in Africa are often used for the wrong purpose. Yet, the World Health Organization (WHO) recommends bed nets be given out free and used by whole communities. The success of a large free bed net campaign in Kenya led the WHO to announce this recommendation
This debate will likely influence social programs in the developing world. Many non-governmental organizations support the creation of self-supporting programs in poor countries. Goods and services are sold for a price to help these programs survive.
According to Rachel Glenerster, who runs a research lab doing development and poverty studies at the Massachusetts Institute of Technology, her several studies have proven that small price changes have a big influence on the number of people who use a product. A price change will reduce the total amount of use of the product as well, she says. She has also found no evidence that the very act of paying for something changes how people use it.
As for a particular product among special populations, some development experts argue that pricing is useful. When it comes to bed nets, Miss Glenerster says research shows no evidence of this. People are just as likely to use a bed net whether they paid for it or not. The debate among experts focuses on .
| A．a special use of bed nets in Africa |
| B．the use of assistance-related products |
| C．the importance of social programs for the poor |
| D．a popular way to help the poor |
According to some experts, certain health treatments .
| A．can only be sold to the rich | B．should be completely free |
C．are to o expensive |
D．are not needed by the poor |
What can be inferred from Paragraph 2?
| A．The WHO's advice may not be always practical. |
| B．Many Africans don't know the function of bed nets. |
| C．The case of Kenya is doubtful. |
| D．Bed nets given to Africans are poor in quality. |
What may be the possible change in the social program according to the third paragraph?
| A．Some of them may become financially independent. |
| B．Many of them will not be organized by the government. |
| C．Some of them will go to developed countries. |
| D．Most of them will be free of charge. |
Even facts “forgotten” by people during a busy day may be retrieved if this is followed by a good night’s sleep.
Researchers from the University of Chicago asked volunteers to remember simple words．Many found their memories letting them down towards the end of the day, but the following morning, those who had slept well could recall much more.
Researchers, writing in the journal Nature, said the brain could “rescue” lost memories during the night.
When the brain is first asked to remember something that memory is laid down in an “unstable” state, meaning that it is possible that it could be lost．At some point, the brain consolidates those it deems important into a “stable”, more permanent state．However, the Chicago researchers suggested that it was possible for a “stable” memory to be made “unstable” again．This would mean that memories could be modified then filed away again in the face of new experiences.
The 12 volunteers tested in the experiment were played words created through a speech synthesizer which were purposely difficult to understand．Initially, the written version of the word from the audio version only．Tests revealed that the ability to recall the right word tended to tail off as the day ended.
However, when the volunteers were retested after a good night’s sleep, they were able to recall some words that they had “ forgotten” the previous evening.
Dr Daniel, one of the study authors, said: “Sleep consolidates memories, protecting them against subsequent interference or decay．Sleep also appears to “recover” or restore memories.” He said: “If performance is reduced by decay, sleep might actively recover what has been lost.”
Dr Karim Nader, from the Department of Psychology in McGill University in Montreal, said: “Memory research is undergoing a transformation---no longer is memory thought to be a hard-writing of the brain, instead it seems to be a process of storage and restorage.”
Sleep helps some memories “mature” and also prunes out unimportant memories.What does the first paragraph implies?
| A．A busy day makes people forget things easily. |
| B．People need a good night’s sleep after a busy day. |
| C．A good night’s sleep helps memories. |
| D．A good night’s sleep helps people forget a busy day. |
The words the 12 volunteers played in the experiment were not ____
| A．created through a speech synthesizer |
| B．hard to understand |
| C．available at the beginning |
| D．designed to test people’s ability of understanding |
According to the passage, memory_____
| A．is a hard-writing of the brain |
| B．is not a process of storage |
| C．is not a process of restorage |
| D．will be mature with the help of sleep |
Which of the following is NOT true?
| A．When people first remember something, the memory is in an “unstable state”. |
| B．The brain will change those important unstable memories into stable. |
| C．Once the memory become stable, it will never become unstable again. |
| D．Sleep can protect memories from being harmed. |
A sunflower is a sunflower. A mobile phone is a mobile phone. But can you combine the two to do something for your local environment? As early as next year it may well be possible. When you have finished with your mobile phone you will be able to bury it in a garden or a plant pot and wait for it to flower.
A biodegradable (生物所能分解的) mobile phone was, this month, introduced by scientists. It is hoped that the new type of phone will encourage consumers to recycle.
Scientists have come up with a new material over the last five years. It looks like any other plastic and can be hard or soft, and is able to change shape. Over time it can also break down into the soil without giving out any poisonous chemicals. British researchers used the new material to develop a phone cover that contains a sunflower seed. When this new type of cover turns into waste, it forms fertilizers. These feed the seed and help the flower grow.
Engineers have designed a small transparent (透明的) window to hold the seed. They have made sure it only grows when the phone is thrown away. “We’ve only put sunflower seeds into the covers so far. But we are working with plant experts to find out which flowers would perform best. Maybe we could put roses in next time,” said one scientist.
As phone technology is developing so quickly, people are constantly throwing their mobiles away. This means manufacturers are under pressure to find ways of recycling them. Some 650 million mobile phones have been sold this year. Most of them will be thrown away within two years, adding plastic, heavy metal and chemical waste to the environment. A biodegradable cover can offer some relief (缓解) for nature , according to the scientists.
“The seed comes out and the flower grows in the pot so you don’t have to concern yourself with the phone when you have finished using it,” said Kerry Kirwan. She leads the research team, which is based at the University of Warwick in Britain.What is the purpose of this passage?
| A．To tell the popularity of biodegradable cell phones. |
| B．To persuade the reader to buy the biodegradable cell phone. |
| C．To discuss the development of phone technology. |
| D．To introduce an environmentally-friendly cell phone to readers. |
People throw away their cell phones most probably because _______.
| A．there is something wrong with them |
| B．no sunflowers can grow out of them |
| C．they are out of fashion |
| D．they are becoming cheaper and cheaper |
It could be learned from the passage that _________.
| A．developing the new type of phone is mainly to protect the environment |
| B．phone-makers will benefit much more from the new type of phone |
| C．the new type of phone will certainly be popular with users all over the world |
| D．the phones that can be recycled are available only in Britain now |
Green is an important color in nature. It is the color of grass and the leaves on trees. It is also the color of most growing plants.
Sometimes, the word green means young, fresh and growing. Sometimes, it describes something that
is not yet ripe or finished. For example, a greenhorn is someone who has no experience, who is new to a situation. In the fifteenth century, a greenhorn was a young cow or ox whose horns(角) had not yet developed. A century or so later, a greenhorn was a soldier who had not yet had any experience in battle. By the eighteenth century, a greenhorn had the meaning it has today—a person who is new in a job.
Someone who has the ability to grow plants well is said to have a green thumb. The expression comes from the early nineteen hundreds. A person with a green thumb seems to have a magic touch that makes plants grow quickly and well. You might say that the woman next door has a green thumb if her garden continues to grow long after your plants have died.
The Green Revolution is the name given some years ago to the development of new kinds of rice and other grains. The new plants produced much larger crops. The Green Revolution was the result of hard work by agricultural scientists who had green thumbs.
Green is also the color used to describe the powerful feeling, jealousy(嫉妒). The green-eyed monster is not a frightening creature from outer space. It is an expression used about four hundred years ago by British writer William Shakespeare in his play “Othello”. It describes the unpleasant feeling a person has when someone has something he wants. A young man may suffer from the green-eyed monster if his girlfriend begins going out with someone else. Or, that green-eyed monster may affect your friend if you get a pay rise and she does not. Greenhorn now refers to ____.
| A．a person who is new in a job | B．a new solider |
| C．a young horse | D．None of above |
A person who has a green thumb is a person ____.
| A．who is good at growing plants | B．whose thumbs are in green color |
| C．whose garden is greener than others’ | |
| D．who is younger than his neighbors |
The author is actually talking about ____.
| A．colors | B．language | C．politics | D．agriculture |
Which of the following statements is NOT true according to the passage?
| A．In about the 16th century, a greenhorn meant an experienced soldier. |
| B．The Green Revolution may have some connection with green thumbs. |
| C．The green-eyed monster was probably created by William Shakespeare. |
| D．The green-eyed monster can be used to describe a person who is jealous. |
Daniel Defoe (about 1660～1731) was an important novelist in the English literature(文学). When he was young, he served as a soldier and had been to Spain, Italy, France and Germany. At the same time, he went in for politics. He cared much about the development of capitalism(资本主义). He had written a lot of articles against it and he was put into prison twice for that. It was not until that he was nearly sixty that he began to write the famous novel “Robinson Crusoe”, which was published in May, 1709. It spread so rapidly that the story was known to every household very soon.
“Robinson Crusoe” can be divided into three parts. The first part is about Crusoe’s three voyages, the second part about his hunting, hiding in caves farming and his hard struggles against nature on a small island, the third about the things which happened after his return from the island. The second part is the body of the novel, in which Robinson’s characters are clearly shown.
Defoe wrote his novel in a simple style and his language is easy to understand. His novel writing set a milestone of the modern English novel. In his later part of life, He was in poor health and lived very poorly. He died on April 24, 1731.Deniel Defoe was ______ and the writer of ______.
| A．an Englishman, “A Tale of Two Cities” |
| B．an American, “A Million Pound Note” |
| C．a French, “The Lost Necklace” |
| D．an English, “Robinson Crusoe” |
How old was he when he began to write his famous novel Robinson Crusoe?
| A．He was in his sixties. | B．He was in his fifties. |
| C．He was over 60. | D．He was sixty. |
Robinson Crusoe can be divided into ______ parts and the first is about _______.
| A．two, his lonely life | B．three, his characters |
| C．three, his journeys by sea | D．four, his fame |
“Every household” in this passage means ______.
| A．all members of a family |
| B．all people |
| C．every building |
| D．persons living in the same house |
What was Defoe’s contribution(贡献) to the English literature?
| A．He wrote a very interesting story. |
| B．He made people happy while reading his story. |
| C．He set a milestone of the modern English novel. |
| D．He was active in politics and was against capitalism. |
My husband and children think they are very lucky that they are living and that it’s Christmas again. They can’t see that we live on a dirty street in a dirty house among people who aren’t much good. But Johnny and children can’t see this. What a pity it is that our neighbors have to make happiness out of all this dirt. I decided that my children must get out of this. The money that we’ve saved isn’t nearly enough.
The McGaritys have money but they are so proud. They look down upon the poor. The McGarity girl just yesterday stood out there in the street eating from a bag of candy(糖果)while a ring of hungry children watched her. I saw those children looking at her and crying in their hearts; and when she couldn’t eat any more she threw the rest down the sewer(下水道). Why, is it only because they have money ? There is more to happiness than money in the world, isn’t there?
Miss Jackson who teaches at the Settlement House isn’t rich, but she knows things. She understands people. Her eyes look straight into yours when she talks with you. She can read your mind. I’d like to see the children be like Miss Jackson when they grow up. This passage mainly suggests that the writer _______.
| A．is easy to get along with | B．is unhappy with the life they are living |
| C．is good at observing and understanding | D．is never pleased with her neighbors |
What do you think of McGarity girl?
| A．She is proud and hungry. | B．She is selfish and cruel. |
| C．She is lonely and friendless. | D．She is unhappy and misunderstood. |
In this text, the writer tries to tell us that _______.
| A．money is the key to everything |
| B．the more money you have, the less happy you’ll be |
| C．there is something more important than money |
| D．when talking to people we should look into their eyes |
Pick out the one that does NOT describe the writer’s view on money.
| A．Why, is it only because they have money? |
| B．There is more to happiness than money. |
| C．Miss Jackson isn’t rich, but she knows things. |
| D．The money we saved isn’t nearly enough. |