欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

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（寄生蟲） 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（癥狀） to malaria（瘧疾）, 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.
小題1:The word backedin the last paragraph probably means_____.
A．conductedB．supportedC．believedD．managed
小題2:What the World Health Organization said suggested that______.
A．a(chǎn)bout 60000 people died of the disease each year
B．a(chǎn)bout 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
小題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
小題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．a(chǎn)mong 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

小題1:B
小題2:D
小題3:D
小題4:B
略
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：完形填空

It seems parents have long been right. Going to bed early is key to getting enough sleep and helping adolescents feel on top of the world, a new study reported.
A   1  of sleep among youngsters may    2  depression and suicidal (自殺的)thoughts, according to the study by the Columbia University Medical Center.
"Our results are   3  with the theory that inadequate sleep is a risk factor for depression, working with other   4  and protective factors through multiple possible causal pathways to the development of this   5  disorder," said lead author James Gangwisch.
"  6  quality sleep could therefore be a preventative measure against   7  and a treatment for depression," he added in the study   8  in the Friday issue of Sleep magazine.
The study followed the nightly habits of some 15,659 college and high-school students, and   9  those who consistently went to bed   10  midnight had a 24 percent higher risk of depression than those who turned in before 10:00 pm.
Night owls（夜貓子）also ran a 20 percent   11  risk of battling suicidal thoughts, the study added.
The American Academy of Sleep Medicine   12  that adolescents should sleep at least nine hours or more a night. Those who were tucked in before 10:00 pm reported they slept    13  about eight hours and 10 minutes.
But that amount of sleep  14  significantly for those in bed after midnight.
And adolescents who slept five hours or less a night were 71 percent more   15  to suffer depression and 48 percent more     16  becoming suicidal, the study said.
"It is a common perception and societal   17  that adolescents do not need as much sleep as pre-adolescents, yet studies suggest that adolescents may  18  require more sleep," said Gangwisch.
"Studies have found that adolescents do not go to bed   19  enough to make up for earlier school start times, and transitions to earlier school start times have been shown to be   20  with significant sleep deprivation（剝奪）. "
(    ) 1. A. night                B. moderation       C. limit                D. lack
(    ) 2. A. result in           B. lie in                C. come about       D. bring in
(    ) 3. A. opposed           B. mixed              C. related              D. consistent
(    ) 4. A. risk                  B. chance              C. potential           D. reason
(    ) 5. A. mood                      B. body                C. feeling             D. mind
(    ) 6. A. little                B. lack                 C. Adequate          D. over
(    ) 7. A. suffering          B. depression               C. disorder            D. sadness
(    ) 8. A. reported           B. published          C. reflected           D. noted
(    ) 9. A. found                      B. investigated      C. appraised          D. supported
(    ) 10. A. before            B. from                C. by                    D. after
(    ) 11. A. lower             B. higher              C. more                D. less
(    ) 12. A. appeals           B. recommends     C. calls                 D. plans
(    ) 13. A. on average      B. in place            C. ahead of           D. in number
(    ) 14. A. increased               B. disappeared       C. strengthened     D. dropped
(    ) 15. A. likely             B. probable           C. possible            D. perhaps
(    ) 16. A. at sight of       B. at risk of          C. in front of               D. as a result of
(    ) 17. A. wish               B. expectation       C. suggestion               D. attempt
(   ) 18. A. exactly           B. immediately      C. directly            D. actually
(    ) 19. A. early              B. lately                      C. soon                 D. quickly
(    ) 20. A. separated               B. associated         C. divided             D. depended

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Most people think the first pies were made by early Romans. They may have learned about pie making from the Greeks. These pies were sometimes made in"reeds (蘆葦葉)", which were used for the purpose of holding the filling (餡 ), and were not eaten.
The Romans spread the word about pies around Europe and the word"pie"became a popular word in the 14th century. The first pie recipe (食譜) was also published by the Romans.
Pies first appeared in England as early as the twelfth century. The early pies were mostly meat pies. There was actually more crust(皮)than filling. Often these pies were made from fowl ( 家禽) and the fowl's legs were left to hang over the side of the dish and used as handles. Fruit pies were probably first made in the 1500s. It is said that Queen Elizabeth I made the first cherry pie.
Pie came to America with the first English settlers. The early settlers cooked their pies in long narrow pans. As in the Roman times, the early American pie crusts were often not eaten, but simply used to hold the filling during baking(烘焙).
Over the years, pie has become what it is today --- "the most traditional American dessert". Pie has become so much a part of American culture that we now often use the phrase "as American as apple pie".
51. Which people might probably first grasp the skill to make pies?
A. The Romans.     B. The Greeks.    C. The Englishmen.    D. The Americans.
52. Which of the following is NOT true about pies?
A. English settlers brought pies to America.
B. Early Romans ate not only pies but also the crusts.
C. The Romans first published pie recipe.
D. The word “pie ” became popular because of the Romans` efforts.
53. What can best show pies have become part of American culture?
A. Americans use long narrow pans to cook pies.
B. People use "as American as apple pie" to show something about American characteristics.
C. Americans don't eat crusts but use them to hold the filling during baking.
D. Pies are the most traditional American dessert.
54. The best title of this passage is "______________".
A . The History of Pies                        B. Pies, the Delicious Food
C. Pies, American Dessert                D. How to Make Pies

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


The United Nations Children’s Fund (UNICEF) has declared October 15 as Global Handwashing Day in 2005．The first Global Handwashing Day is on October 15 of 2008.Activities are planned over twenty countries to get millions of people in the developing world to wash their hands with soap. Global Handwashing Day is the idea of the Public-Private Partnership for Handwashing with Soap. Partners include the UN Children's Fund, American government agencies, the World Bank and soap makers Unilever and Procter and Gamble. The goal is to create a culture of hand washing with soap.
Hand washing can prevent the spread of disease. Experts say people around the world wash their hands but very few use soap at so-called critical moments. These include after using the toilet, after cleaning a baby and before touching food.
When people get germs on their hands, they can infect themselves by touching their eyes, nose or mouth. Then they can infect others.
The organizers say all soaps are equally effective at removing disease-causing germs. The correct way to wash is to wet your hands with a small amount of water and cover them with soap. Rub it into all areas, including under the fingernails. Rub for at least twenty seconds.Then, rinse well under running water. Finally, dry your hands with a clean cloth or wave them in the air. Soap is important because it increases the time that people spend washing. It also helps to break up the grease and dirt that hold most of the germs.And it usually leaves a pleasant smell,which increases the likelihood that people will wash again.
Washing with soap before eating and after using the toilet could save more lives than any medicine. It could help reduce cases of diarrhea(痢疾) by almost half. And it could reduce deaths from pneumonia and other breathing infections by one-fourth. Diarrhea is the second leading cause of child deaths, killing more than one and a half million children a year. Pneumonia is the leading cause, killing about two million children under five each year. Hand washing can also prevent the spread of other diseases.
50.We can learn from Paragraph 1 that _______.
A.the first Global Handwashing Day was held in 2005
B.many originations support the idea of Global Handwashing Day  
C.Global Handwashing Day was founded by many soap makers
D.the content of Global Handwashing Day is to wash your hand frequently
51.The underlined phrase “critical moments” in Paragraph 2 refers to _______.
A.the turning points    
B.schedules  
C.the arrangement of a time
D.the necessary parts in health
52.The main purpose of the story is to tell us ________.
A.hand washing is very important
B.to create a culture of hand washing with soap
C.germs can infect ourselves and others
D.soaps play an important role in everyday life
53.The last paragraph implies that ___________.
A.a soap is a kind of medicine to prevent a disease
B.it is important for children to wash hands in a correct way
C.Pneumonia kills about two million children each year
D.Diarrhea is the second leading cause of child deaths.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


B
New evidence shows that getting enough Vitamin D may be the most important thing you can do for your health．
You know the usual prescription for good health: a balanced diet with lots of fruits and vegetables, regular exercise, no smoking．Now add this: Spend a little more time in the sun．
Huh? That may sound like medical heresy （反面觀點(diǎn)）．After all, we've been warned for decades about the dangers of the sun: wrinkles, age spots and the increasing threat of skin cancer．But new and impressive medical evidence suggests that sunlight is beneficial．The vitamin D it prompts our bodies to make may prevent cancer, protect against heart disease and ward off a long list of disorders such as multiple sclerosis, rheumatoid arthritis, diabetes and gum disease．It is even showing promise as a treatment for heart disease and some cancers．
Long recognized as vitally important for bone building （it's needed for calcium absorption）, vitamin D has now achieved superstar status among nutrients．While all doctors may not agree, many experts are confident enough of its wide-ranging powers to urge that we get much more of it, from the sun and from supplements, as even the best diet in the world may not give us enough．
60．Which of the following is NOT the usual way of keeping healthy?
A．To do exercise now and then．
B．To eat plenty of fruits and vegetables．
C．To avoid staying in the sun for a long time．
D．To keep away from cigarettes．
61．What does the underlined word “prompts” in the third paragraph mean?
A．causes              B．forces          C．motivates   D．encourages
62．According to the passage, vitamin D ________．
A．can be got by doing regular exercise
B．can be used to prevent some cancers
C．can be got from the sunlight
D．can be used to remove the wrinkles
63．The passage is most likely from a（an） ________．
A．a(chǎn)dvertisement      B．news report   C．magazine     D．medical prescription

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

British and American scientists are raising genetically modified(轉(zhuǎn)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(豬仔), 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

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

The following passage is a healthy prescription (處方) of how we can approach life. It is not about being famous or being wealthy or about our good looks. Truly, it is all about love. There are times when we feel as if we are separated from the rest. This feeling creates a mental prison. Therefore, we should try to work hard to internally (內(nèi)在地) liberate ourselves by widening our circle of pity to accept all living things.
“Open your heart to others and try to understand,
When someone reaches for you, hold out to them your hand,
Follow your heart, no matter what other people say,
Do things that make you able to smile throughout your day,
Treat other people, the way you would like them to treat you,
Do what you know is right and to your heart and self stay true,
Remember what life is all about, it is how you make people feel,
What you do, where you go, and making dreams become real,
Helping people through, in hard times of pain and strife,
What you do for others, is what is important in this life.
Look deeper and don’t judge people by what is on the outside,
It is what is inside that counts and what people often hide,
Care, help, love, be honest, and be kind,
With purity and goodness within yourself, it is happiness you will find.
Do all you can in the time you have, you won’t always be around,
Recapture the joy of little things, that once were easily found,
And if you can do all this and live a life of love,
You will be helped through life, by all those up above.”
I will leave you with the inspiring words of our late genius, Albert Einstein:
“There are two ways to live life. One is as though nothing is a miracle (奇跡). The other is as though everything is a miracle.”
60. The passage is mainly about ______.
A. living a life of love                 B. helping those in need
C. taking back the joy of life            D. separating ourselves from others
61. According to the passage, which statement is true?
A. Treating others the way others treat you is right for your life.
B. Making your dream become real is selfish in your life.
C. Judging people by what is inside counts.
D. Doing what you can makes yourself happy.
62. The underlined sentence in the last paragraph probably means _________.
A. Different ways of life lead to completely different results
B. Life is not always full of miracles
C. There are two kinds of miracles in life
D. Looking for miracles in life helps people find happiness

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Violent gangs. Bar fights. Broken bones. No, we aren’t talking about a late night in Downtown Chico; we’re talking about the things that come to many people’s minds when the word, motorcycle, is mentioned.
Many Chico State students have learned of the convenience of small motorcycles and scooters when it comes to parking on or near campus. Motorcycle parking is something that is available when compared to the amount of vacant automotive parking—something especially valuable when running a bit late for class. Motorcycle-riding students have also learned to appreciate the 50 to 80 average miles per gallon, especially today when it seems as if gasoline prices are shooting up faster and more often than a back alley addict.
Still, some people are reluctant to ride the steel horse. Marc Lewis, a 24-year-old Chico State anthropology student, is one of those people. “I’ve had motorcycles in the past. I know what they’re about. I want another one, for recreational purposes,” Lewis said. The only things holding Lewis back are insurance costs and what he refers to as “unsafe drivers”. Safety and insurance costs certainly are important factors.
Chris Kelley, employee of Cost-U-Less Insurance Center at 166 Cohasset Road, Suite 3, admits that motorcycle insurance can get pricey. The average price per month for Chico State students in their 20s is about $100, Kelley said. “The most expensive rate I’ve ever charged was something like $32,000 a year,” Kelley said. “The guy had a horrible record.”
If a motorcycle is something that you’ve always been curious about but have been frightened by the dangerous image it is often given, try rethinking your position. Motorcycling is one of the most diverse activities in existence. Consider the information you find here a brief introduction to several of the more popular aspects of motorcycle riding.
44. When it comes to motorcycles, one tends to think of ____.
A. a late night in Downtown Chico           B. the horse made of steel
C. the money paid for insurance               D. a horrible image motorcycles give
45. According to the second paragraph, which of the following is NOT true?
A. It is very convenient for students to ride motorcycles.
B. The campus has enough parking place for motorcycles.
C. Students are often late for class riding motorcycles.
D. Motorcycles consume less gasoline.
46. Why are some people unwilling to ride the steel horse?
A. Because they often have their bones broken.
B. Because they are worried about the costly insurance and safety problems.
C. Because they have to pay for the pricey gasoline.
D. Because they don’t want to ride it for entertainment.
47. The writer intends to tell us in the last paragraph that ____.
A. we shouldn’t buy a motorcycle due to the danger it causes
B. many people are frightened by the dangerous image
C. we shouldn’t be curious about the motorcycle any more
D. motorcycles are still popular regardless of the disadvantages

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解



BEST PRODUCT WE'VE EVER SEEN”－THIS REALLY WORKS－ON SALE NOW
Need to lower your cholesterol（膽固醇）？We strongly recommend Cholestrol block TM. This really works, and now is the best time to buy，because of a special offer for the first 250 customers only for a limited time.
* Takes cholesterol out of food, no matter what you eat.
* Clinically demonstrated effective in university and hospital testing．
* Lowers cholesterol absorption up to 42% or more．
* NO SIDE EFFECTS unlike Liptor®, Zocor®，Crests®＆other commonly prescribed（處方的） medications－safe and effective.
* Outsells all other brands on Internet every month.
LIMITED TIME ONLY-- Try Cholesterol Watchers free with purchase.
50．If you happen to be the 200th customer to buy Cholesterolblock, you will       .
A．be able to buy it at a low price                         B．be the luckiest one online
C．try it free of charge                                    D．change your diet
51．Liptor®，Zocor®，Crestor® are_______．
A．diseases                B．side effects                   C．medicines         D．cholesterol
52．Where can you most probably read this passage?
A．In a travel guide book．                           B．On a university bulletin board．
C．In a health magazine.                                     D．In a doctor's prescription.

查看答案和解析>>

同步練習(xí)冊答案