British and American scientists are raising genetically modified(转基因的) pigs in the hope of providing organs for transplant(移植) to humans, the project leader wrote in a newspaper Sunday.
Scientists in London and California have begun conducting the genetic experiments to find a solution to record–long waiting lists for organ transplants, Robert Winston said in an opinion piece written for Britain's Sunday Times.
In Britain alone, around 8,000 patients are waiting for a transplant.
"People needing a new heart or liver are waiting for someone else to die – usually a violent death in a traffic accident," Winston wrote in the newspaper. He said his team was "trying to modify pigs so their organs might save the lives of humans."
The scientists are introducing human genes into the animals to reduce the chances of the organs being rejected by patients, as has been common in previous attempts to use animal tissues, said Winston, who heads the Institute of Reproductive and Developmental Biology at London's Hammersmith Hospital.
Working with Dr. Carol Redhead of the California Institute of Technology, Winston's team has injected human genes directly into male piglets(猪仔), adding them to the animal's sperm(精子).
He said that pigs involved in experiments had successfully produced transgenic sperm, but acknowledged that British and European laws had prevented the team from using the pigs to mate.
The Sunday Times newspaper reported that the experiments would be moved to the United States following difficulties with funding and regulations in Britain. It said the pigs would be bred in Missouri.
"Our U.S. friends will benefit from our technology and the income we might have produced for Britain will be lost," Winston wrote.
Some scientists have previously blamed the idea of using animal organs for human transplant, saying the technique risks spreading animal viruses to humans. Winston said his research project is attempting to breed virus-free pigs.
49. Scientists are introducing human genes into the animals to ____________.
| A. make the organs healthier |
B. reduce the pain of animals |
| C. make the organs live longer |
D. reduce the chances of rejection |
50. Some scientists have blamed the idea of using animal organs for human transplant because ____________.
| A. the technique is not perfect now |
| B. humans may be infected with animal viruses |
| C. it is against laws and regulations |
| D. it may cause a conflict between humans and animals |
51. According to Winston, it seems ___________ to Britain to move the experiments to the United States.
| A. a pity |
B. a pride |
C. a disaster |
D. a good idea |
52. It can be inferred from the passage that ____________.
| A. animal organs are commonly used for human transplant now |
| B. lots of patients need animal organ transplants now |
| C. examples of the animal tissues being rejected have happened |
| D. it is not safe to use animal organs for human transplant |
Napoleon Bonaparte died on May 5, 1821, on the island of St. Helena off the coast of Africa. He was 51 years old at the time. When doctors examined Napoleon's body, they said that the former emperor of France had died from cancer of the stomach. That was the cause of death recorded in the official report. However, other doctors disagreed. One doctor who was present during the examination of the body said that Napoleon died of hepatitis（肝炎）. Other historians and medical experts have suggested that Napoleon died of syphilis（梅毒）, tuberculosis（肺结核）, or perhaps malaria. Now, after careful research, a British chemist thinks that Napoleon might have been poisoned -- not by a person, but by his wallpaper.
Napoleon was sent to the island of St. Helena in 1815 after he lost the battle of Waterloo. He was a prisoner on the island. Although he had servants to attend to him, he had to live in one small building. St. Helena is a very wet island, so the walls of the building were always covered with mold. Napoleon became ill from spending too much time inside his house. Almost constantly he had a fever, chills, and felt sick to his stomach. He often felt pain in his shoulders and in his side. His skin turned yellow. He got frequent headaches, and he would become dizzy and vomit. None of the medicine that the doctors gave Napoleon seemed to help. They were not sure what was the matter. Finally, Napoleon was too weak to leave the house. One night, while he was sleeping, he went into a coma （昏迷）and died.
Many doctors who later reviewed the reports of Napoleon's illness found that the symptoms did not show a man who suffered from stomach cancer. It seemed obvious that Napoleon had died from some other cause. In 1961, a Swedish doctor examined some of Napoleon’s hair and found a high level of arsenic（砒霜）, a chemical poison. Was Napoleon murdered? It is doubtful. Arsenic was used in many types of medicine during Napoleon’s time, so he might have taken the arsenic as a cure for his illness. Then, in 1982, Dr. David Jones from England began to look into the mystery and suggested that Napoleon might have breathed in arsenic which was in the air of his house. In the 1700s and 1800s, arsenic was used to make a kind of green paint used on cloth and wallpaper. If the paint was used on a wet wall, the arsenic would go into the air. A person in the room might breathe that air. After studying the wallpaper in the room where Napoleon died, Dr. Jones found high levels of arsenic in the green paint on the walls.The passage says that .
| A．a British doctor thinks he has found the cause of Napoleon's death |
| B．many doctors have tried to guess the cause of Napoleon's death |
| C．Napoleon could have died from poison |
| D．all of the above |
Why did Napoleon live on St. Helena?
| A．He owned the island. | B． He was a prisoner there. |
| C．His family lived there. | D．He liked the island. |
Napoleon suffered from the following symptoms except __________.
A. chills B. fever C dizziness D. bleeding The official report said that Napoleon died of____________.
| A．cancer | B．a coma | C．mold | D．poison |
According to Dr. Jones, how did the arsenic probably get into Napoleon's body?
| A． He ate it. | B．He breathed it in. |
| C． He touched it. | D． He drank it. |
My newly-rented small apartment was far away from the centre of London and it was becoming essential for me to find a job, so finally I spent a whole morning getting to town and putting my name down to be considered by London Transport for a job on the underground. They were looking for guards, not drivers. This suited me. I couldn’t drive a car but thought that I could probably guard a train, and perhaps continue to write my poems between stations. The writers Keats and Chekhov had been doctors. T.S. Eliot had worked in a bank and Wallace Stevens for an insurance company. I’d be a subway guard. I could see myself being cheerful, useful, a good man in a crisis（艰难危险时期）. Obviously I’d be overqualified but I was willing to forget about that in return for a steady income and travel privileges — those being particularly welcome to someone living a long way from the city centre.
The next day I sat down, with almost a hundred other candidates, for the intelligence test. I must have done all right because after about half an hour’s wait I was sent into another room for a psychological test. This time there were only about fifty candidates. The interviewer sat at a desk. Candidates were signaled forward to occupy the seat opposite him when the previous occupant had been dismissed, after a greater or shorter time. Obviously the long interviews were the more successful ones. Some of the interviews were as short as five minutes. Mine was the only one that lasted a minute and a half.
I can remember the questions now: “Why did you leave your last job?” “Why did you leave your job before that?” “And the one before that?” I can’t recall my answers, except that they were short at first and grew progressively shorter. His closing statement, I thought, revealed a lack of sensitivity which helped to explain why as a psychologist, he had risen no higher than the underground railway. “You’ve failed the psychological test and we are unable to offer you a position.”
Failing to get that job was my low point. Or so I thought, believing that the work was easy. Actually, such jobs — being a postman is another one I still desire — demand exactly the sort of elementary yet responsible awareness that the habitual dreamer is least qualified to give. But I was still far short of full self-understanding. I was also short of cash.The writer applied for the job chiefly because _________.
| A．he wanted to work in the centre of London |
| B．he could no longer afford to live without one |
| C．he was not interested in any other available job |
| D．he had received some suitable training |
The writer thought he was overqualified for the job because _________.
| A．he often traveled underground | B．he had written many poems |
| C．he could deal with difficult situations | D．he had worked in a company |
The length of his interview meant that _________.
| A．he was not going to be offered the job | B．he had not done well in the intelligence test |
| C．he did not like the interviewer at all | D．he had little work experience to talk about |
What does the writer realize now that he did not realize then?
| A．How unpleasant ordinary jobs can be. | B．How difficult it is to be a poet. |
| C．How unsuitable he was for the job. | D．How badly he did in the interview. |
What’s the writer’s opinion of the psychologist?
| A．He was very aggressive（有进取心的）. | B．He was unhappy with his job. |
| C．He was quite inefficient. | D．He was rather unsympathetic. |
“Mom, can I bake some bread?” We were 15, my best friend, Hanna, and I, determined to try our hands at creating some beautiful bread.
“It’s not worth the trouble,” my mother said. “It takes lots of time and makes a big mess. Our bakery bread is delicious without all that effort.”
Begging was useless. Mom’s “no” meant “No!”
But several weeks later, opportunity knocked: My parents were going out for the evening. I immediately invited Hanna to be my partner in bread-baking crime.
We studied the recipe. That was easy. “Mix oil into flour then beat in four of the eggs, one at a time, with remaining sugar and salt.”
We were not good at breaking eggs. I tried to learn from my mother.
“Gradually add eight cups of flour. When dough (面团) holds together, squeeze it.”
We took turns working like that. “Is the dough ‘holding together’?” we asked each other.
I remembered my neighbor’s instructions: “If it’s too sticky, add some flour; if too dry, add water.”
We added water. Then more flour. Then more water. By then, the mass of our dough had grown very much.
“Place dough on floured surface and squeeze till smooth,” the recipe instructed.
We took turns burying our hands in the damp dough, pinching, squeezing, and feeling it leak between fingers.
“Clean and oil bowl, then return dough to bowl. Cover and let dough rise in warm place for 1 hour.”
This was good news --- we’d have a break. On dirtied kitchen chairs, we dreamed about our beautiful bread. “See?” we would tell my mom. “Isn’t it worth the work?”
Hanna and I couldn’t help glancing at the rising process every few minutes. But nothing was happening.
“Maybe something will happen in the hot oven,” I said.
Unfortunately, when we removed the loaves from the oven, they were like hard stones.
Mom was right; it takes time and effort. It sometimes makes a mess. But still it feels good, somehow, to be part of that long, ongoing chain of bread bakers. Since that night, both Hanna and I have learned to do it right.To the writer, what her mother said was __________.
| A．law | B．rubbish | C．advice | D．warning |
Which of the following can best describe the children’s feelings while making their first bread?
| A．Confident; hopeful; disappointed. | B．Curious; hopeful; disappointed. |
| C．Interested; excited; satisfied. | D．Worried; satisfied; proud. |
Which of the following did the writer do without instructions?
| A．Placed dough on floured surface. | B．Added eight cups of flour to eggs. |
| C．Returned dough to a cleaned bowl. | D．Placed the dough into the hot oven. |
The passage mainly tells us ______________.
| A．the process of making bread | B．the conflict between mother and daughter |
| C．the first experience of making bread | D．the way of doing housework |
Reading is very important to help you learn English. To learn as much as you can from reading, you need to read different kinds of English. This book provides not only different kinds of English but also a good way to check your reading ability.
There are four parts in the book:
Part 1 is Messages: In this part somebody wants to send information in writing to somebody else .There is a test on timetables and a test on text messages.
Part 2 is People: In this part all the tests are about people. For example, there is an informal letter between friends. There is formal English in biography (传记) . There is a job application as a model to help with your writing, as well as testing your reading.
Part 3 is Places: In this part, too, many different kinds of English are shown, some informal and some formal. There is the informal English of a holiday postcard. There is also the formal English in a letter of complaint.
Part 4 is Things: You will find some descriptive writing in this part. There are descriptions of clothes and of a computer.
You can do these tests in any order you like, or you can do all the tests with a formal or informal text .I enjoyed writing this book and I hope you enjoy using it .
We can find the introduction to a product in .
| A．Part 1 | B．Part 2 | C．Part 3 | D．Part 4 |
Which of the following is most probably written in informal English ?
| A．A letter of complaint. | B．A computer handbook |
| C．A letter to a friend. | D．A story of a president . |
The passage is most probably written for .
| A．test designers | B．students | C．test-takers | D．teachers |
What is the best title of the book ?
| A．Test Your Reading | B．Help with Your Writing |
| C．Learn Different Kinds of English | D．Practise English in Different Ways |
Women turn to online shopping
Women have jumped ahead of men for the first time in using the Internet to do their holiday shopping，according to a study published last week in the US.
For Years men have been more likely to shop on the Internet than women，but during the 2004 holiday season 58 percent of those making online purchases were women.
“It shows how mainstream the Internet is becoming”，said Lee Rainie，director of the Pew Internet and American Life Project group，which carried out the study.
Rainie said it was only a matter of time before women shoppers caught up with men. This is because women traditionally make decisions about spending.
Users were more likely to shop online to save time. Internet users between the ages of 18 and 29 were responsible for some of the most dramatic（显著的）increases in the online gift-buying population this time around.
However，three-quarters of the US Internet users did not buy holiday gifts online in 2004．They worried about credit card security，or just compared online prices with off-line prices，then dashed off to the shops to get the best deals.
“But even if shoppers don’t buy online，websites are becoming promotion tools for stores，”said Dan Hess，vice president of Comscore Networks Inc．Hess said that actually most stores’ websites can make customers fully believe the security of their credit card numbers. And most are able to ensure that gifts arrive on time.
“It’s all about making the shopping experience more efficient，more reliable and more comfortable，” Hess said.Which of the following statements is true?
| A．There were fewer women online shoppers than men in 2004． |
| B．Most of the Internet users between the ages of 18 and 29 are women. |
| C．People in the US were more likely to buy gifts online. |
| D．More women shopped online than men in 2004. |
From the passage we can infer that________.
| A．men usually decide how to spend money in the family |
| B．women usually decide what to buy in the family |
| C．the Internet is used in all the shops. |
| D．more and more shops will sell their goods online. |
According to Dan Hess，shopping online___________.
| A．is unsafe | B．is convenient | C．is a waste of time | D．is cheaper |
What can we know from the passage?
| A．American people only buy gifts in holidays. |
| B．Shopping online is fun for women. |
| C．Shopping off-line provides better service. |
| D．Young people like to do gift-shopping online. |
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