Scientists say they have discovered a promising treatment for sleeping sickness,

Scientists say they have discovered a promising treatment for sleeping sickness,

题型:不详难度:来源:
Scientists say they have discovered a promising treatment for sleeping sickness, a killer disease that infects(感染) about 60,000 people in Africa a year.
British and Canadian experts say drugs could attack the parasite(寄生虫) causing the illness needs to survive. They say the drug could be ready for human medical test in about 18 months.
The disease, spread by the bite of a fly, is caused by a parasite attacking the central nervous system. It has similar symptoms(症状) to malaria(疟疾), making it difficult to diagnose. Left untreated, it moves to the brain, resulting in mental confusion and final death
The "breakthrough" came at the University of Dundee in Scotland, where scientists were offered money to research diseases ignored by major drugs companies.
Professor Paul Wyatt, director of the programme, said: "This is one of the most significant findings made in recent years in terms of drug discovery and development for ignored diseases."
He said the research, published in the journal Nature, represented "significant progress" in the development of a full blown drug against the disease.
The World Health Organization said there are between 50,000 and 70,000 cases of the disease a year, with a further 60 million people at risk of infection.
The research in Dundee was backed by partners at the University of York in England and the Structural Genomics Consortium in Toronto, Canada. The two drugs currently available to treat sleeping sickness both have problems. One is with side effects that kill one in 20 patients and the other is costly, only partially effective and requires long-time hospital treatment, the scientists said.
小题1:The word backedin the last paragraph probably means_____.
A.conductedB.supportedC.believedD.managed
小题2:What the World Health Organization said suggested that______.
A.about 60000 people died of the disease each year
B.about 60000 people were cured of the disease each year
C.600 million people are likely to get infected
D.the disease is spreading fast in Africa
小题3:We can read this passage______.
A.in the journal Nature
B.in a newspaper of the University of Dundee
C.in a book about flies
D.in a newspaper about medicine
小题4:We can learn from the passage that______ .
A.big drug companies play an important role in the research of the new drug
B.people who get infected with the disease are mentally disturbed
C.among 200 people infected with the disease, 5 may die because of the old drug
D. Professor Paul Wyatt may be a professor at the University of York

答案

小题1:B
小题2:D
小题3:D
小题4:B
解析

举一反三
Starting the day on an egg could keep your blood pressure(血压) under control, research suggests.Scientists have shown that eggs produce proteins with a function similar to that of powerful blood pressure-lowering drugs.
The research, from the University of Alberta in Canada, showed that when eggs come in contact with stomach enzymes(酶) they produce a protein that acts in the same way as Ace inhibitors, but more work is needed to show the effects outside a lab and in the human body.
Earlier this month, British researchers declared that, contrary to popular beliefs, it is healthy to go to work on an egg.They concluded that the type of cholesterol (胆固醇) found in eggs has little effect on increasing heart disease risks.
Researcher Professor Bruce Griffin, from the University of Surrey, said:“The wrong beliefs linking egg eating to high blood cholesterol and heart disease must be corrected .The amount of fat in our diet has an effect on blood cholesterol that is several times greater than the relatively small amounts of cholesterol found in eggs.The UK public do not need to be limiting the number of eggs they eat.They can be encouraged to include them in a healthy diet as they are one of nature’s most nutritious foods.”
The British Heart Foundation dropped its three-egg-a-week limit in 2005.However, almost half of Britons believe the limit still applies.
小题1:From the text we know that Ace inhibitors are         
A.a kind of medicineB.a kind of protein
C.a kind of illnessD.a kind of food
小题2:According to what Professor Brcue said, eggs        
A.are the most nutritious food.
B.have no effect on blood cholesterol
C.can be included in a healthy diet
D.are forbidden to be eaten in the UK
小题3:We can infer from the text that           
A.drugs to lower blood pressure will be replaced by eating eggs
B.stomach enzymes mixed with eggs can cure heart diseases
C.most Britons agree the three-egg-a-week limit should be dropped
D.about 50% of Britons think eating an egg a day is bad for their health
小题4:The text is meant         
A.to introduce scientific findings about eggs
B.to introduce a medicine made from eggs
C.to tell people how to lower their blood pressure
D.to advise people to eat as many eggs as possible

题型:不详难度:| 查看答案

C.
“An apple a day keeps the doctor away.” Similarly, if we drink a little more water ever day, we may find that we need to go to the doctor a lot less often. A healthy diet is made up of water and a great many different kinds of foods. We know that healthy foods like fruits, vegetables and fish, are important as they provide us with energy and fibre, without giving us too much fat and sugar. But why is water important?
The human body needs water to survive. Water is important as it carries poisons and waste out of our bodies. However, doctors advise us to drink plenty of water, much more than the small amount we need to stay alive.
Some doctors believe that water is important for our health in all kinds of ways. They believe that a great many illnesses and health problems stars as a result of dehydration—a lack(缺少) of water in the body. Most people are dehydrated (脱水)at least some of time, although they probably don’t know it. It is surprising to learn that if we feel thirsty, we are already in the first stages of dehydration. In fact, we are advised to drink water before we feel thirsty.
These doctors think that health problems such as headaches, high blood pressure and asthma could be helped if people drink more water. They also believe that drinking more water can help people who are overweight. Water contains no calories so it will not make us put on weight. If we drink water, we will probably drink less sugary soft drinks such as Coca-cola. Doctors also believe that drinking more water may stop people from overeating. They say that many people think that they are hungry when they are, in fact, thirsty. Doctors suggest, therefore, that we eat less food and drink more water.
There are still many health problems that cannot be solved by drinking water, so we should not stop going to seeing the doctor completely. However, if we make a decision to drink water every day, we may find that we need to go to the doctor a lot less often.
63. We need _____for a healthy diet.
A. fibre        B. food       C. water    D. Water and different foods
64. From the text, we know water can carry_________.
A.energy and fibre in our bodies     
B.fruit, vegetables and fish in our bodies
C.sugar and fat out of our bodies
D.poisons and waste out of our bodies
65. Lack of water caused people to put on weight too much because_______.
A.they think they are hungry and eat too much
B.they think they are thirsty and eat less
C.water has no calories
D.it makes them hungry
66. Which of the following isn’t mentioned in the passage?
A.Fruit provides us with energy and fibre.
B.Some healthy problems start because of a lack of water.
C.Drinking more water may stop people from overeating.
D.The amount of water a person should drink in a day.
题型:不详难度:| 查看答案
More than 600, 000 tourists from the Chinese mainland visited Taiwan last year, fulfilling expectations despite the impact of H1N1 flu and the global economic downturn.
A total of 606, 100 mainland tourists visited Taiwan in the past year, with each spending nearly $1, 800 on the island, including accommodation and shopping, Shao Qiwei, chairman of the Beijing-based Association for Tourism Exchange Across the Taiwan Straits, said on Friday.
“We see good cooperation between tourism industries across the Straits taking shape,” Shao said. Since July 2008, when Taiwan first opened to mainland tourists, about 660, 000 mainland tourists have visited the island and spent $1.13 billion there, benefiting local transportation as well as the retail, entertainment and health industries.
In four months starting August last year, mainland tourists spent $65.72 million through UnionPay payment cards, figures from mainland bankcard association China UnionPay showed.
“Years of isolation between the two sides have made Taiwan an attractive place for mainland tourists,” said Zheng Lijuan, deputy (副的) general manager of CITS International MICE Co. Ltd.
But under the impact of H1N1 flu since May, the number of mainland tourists to Taiwan had also dropped sharply, leading to industry insiders(内部的人)casting doubt as to whether the goal of attracting 600, 000 mainland tourists to Taiwan in 2009 could be achieved.
Despite the unfavorable conditions, a string of relaxed rules last year have spurred (刺激) the interest of mainland tourists in visiting Taiwan.
In the past year, Taiwan has opened to mainland residents in 25 provinces, up from the initial 13 provinces. Relaxed rules have also allowed five tourists to form a group to visit Taiwan, instead of the initial requirement of at least 10 tourists. Mainland tourists can also stay in Taiwan for a maximum of 15 days, instead of the initial 10 days.
Combined with mainland business groups, more than 900, 000 mainland travelers visited Taiwan in 2009, Christine Lai, director of the Taiwan Strait Tourism Association, told China Daily.
Without releasing the goal for this year, Lai expressed hopes that mainland tourists would head to Taiwan on second or even third visits.
66. Why do mainlanders like to visit Taiwan?
A. Taiwan is a very beautiful island.
B. There are many shops, malls and bookstores in Taiwan.
C. The accommodation and transportation are very good in Taiwan.
D. Years of isolation between Taiwan and mainland makes it an attractive place.
67. What was the original goal of mainland tourists to Taiwan in 2009?
A. 660, 000                     B. 606, 100                      C. 600, 000                         D. 900, 000
68. The number of mainland tourists to Taiwan in 2009 was fulfilled because         .
A. the residents of 25 provinces could visit Taiwan
B. mainland tourists could stay in Taiwan for 15 days
C. the Chinese government made a string of relaxed rules
D. there were no impacts of H1N1 flu in Taiwan and mainland
69. We can infer from the text that         .
A. there may be a goal for Mainland tourists visiting Taiwan in 2010
B. Chinese mainland tourists can stay in Taiwan for a maximum of 10 days
C. the global economic downturn had not influnced Taiwan’s travel industry
D. H1N1 flu had not made the number of the mainland tourists to Taiwan drop
70. Which of the following would be the best title for the text?
A. Visitors to Taiwan will slowdown
B. Mainland tourists to Taiwan hit mark
C. More and more mainland tourists visit Taiwan
D. H1N1 and global economic influence Taiwan’s travel industry
题型:不详难度:| 查看答案
Everyone knows what a needle is. Of course there are needles and needles: Needles for sewing machines, needles for injection(注射), you name it. But few people think of the wonder : a needle works in the hands of those who practice acupuncture(针刺疗法).
During the past ten years or so, I have been suffering from terrible headache. It seems to be getting from bad to worse these days . Last night I got a sudden pain in my head. It was so terrible that I could hardly bear(忍受)it. Although I swallowed all kinds of pain-killers(止痛药), I didn’t feel any better, It seemed that there was nothing I could do but phone for a doctor.
One of our neighbours happened to be with us. He was not a doctor, but he timidly(胆怯地) offered his help, saying “Do you mind if I tried acupuncture on you? These needles may possibly do you some good.” I agreed. In a moment, he had taken out a few needles from his purse. Without a moment’s delay, he fixed a few needles into the skin on my head here and there, Before long, I felt thoroughly relieved(缓解疼痛).
Just then, the doctor sped through my house and said, “Where is our patient?”
“Sorry, Doctor, You are too late, It’s killed!” I answered in delight.
It’s miracle , isn’t it?
小题1:The underlined phrase from bad to worse in the second paragraph refers to the man’s   . 
A.characterB.lifeC.headacheD.health
小题2:Which of the following statements is NOT true according to the passage?
A.the neighbour fixed needles on his own head
B.The neighbour is a kind-hearted person.
C.The man’s pain was killed before the doctor arrived
D.Soon after the acupuncture, the man was completely recovered.
小题3:The sentences” You are too late. It’s killed .” mean that    .
A.the pain was killed because the doctor came late
B.the man was killed because the doctor came too late
C.before the doctor came the man’s headache was already cured
D.it was too late and the man had gone away
小题4:The passage tells us that     .
A.everyone knows that acupuncture is a miracle
B.the neighbour wanted to use acupuncture on every patient
C.the effect of acupuncture on the man was unbelievable
D.the patient did not believe in acupuncture

题型:不详难度:| 查看答案
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

题型:不详难度:| 查看答案
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.