题目
题型:不详难度:来源:
C
Recently the World Health Organization announced that the disease of
smallpox(天花)had almost been wiped out in most parts of the world, thanks to widespread vaccination(种牛痘). Most people are vaccinated at least once in their lives and if they wish to travel from one country to another they must be able to prove that they have had a recent vaccination. In this way the disease has been prevented from spreading and today one seldom hears of it at all.
This is mainly because of the great discovery made by a village doctor, Edward
Jenner, in about 1798 when he published his report of his new experiment called vaccination (from the word ‘vacca’ meaning a cow). Jenner discovered that people who worked with cattle often suffered from a harmless disease which they caught from the cattle, but these people never seemed to get smallpox. So he experimented by putting the disease into a small opening on the arms of healthy people, and though their arms became painful for a day or two, they soon recovered and none of these people ever got smallpox.
So the news of the wonderful discovery spread to other countries and people
rushed to their doctors to be vaccinated. In many countries the simple way to deal with the arm was done on thousands of people, and the terrible smallpox began to disappear.
71.Vaccination against smallpox has been so successful that _________ .
A.the discoverer made a large amount of money
B.Dr Jenner was given a prize by the World Health Organization
C.smallpox has almost disappeared in most countries
D.smallpox was no longer in existence on earth
72 .Smallpox has been prevented from spreading through the following measures EXCEPT that ________.
A.most people were vaccinated against the disease at least once
B.people going abroad should promise not to spread the disease
C.people travelling from one country to another must prove they are vaccinated
D.people must be vaccinated shortly before going to foreign countries
73 .What led Dr Jenner to experiment with vaccination was that ________ .
A.he wanted to make a great discovery and publish it
B.vaccination could make people"s arms safe
C.he tried to cure the farmers of some disease caught from the cattle
D.those who worked with cattle seemed free from getting smallpox
74.The doctor"s new discovery was called ‘vaccination’ for the reason that ________ .
A.he discovered smallpox near a farm
B.he experimented with a disease from the cattle
C.he was working with cattle in the countryside
D.people got the disease of smallpox from the cattle
75.The news of the discovery ________.
A.caught people"s attention from all corners of the world
B.spread far and near in the western countries
C.made people rush to Dr Jenner for vaccination
D.helped to get rid of the terrible disease of smallpox
答案
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解析
核心考点
试题【CRecently the World Health Organization announced that the disease of smallpox(天】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
All of us, to some extent, have experienced anxiety at different levels. There are somethings you may know about anxiety, and some things that you may not be familiar with. So in order to be prepared for your unexpected feeling of anxiety, you need to get to know what anxiety is before it escalates into a panic attack.
Anxiety is simply the feeling of discomfort, uneasiness or fear of what may eventually happen resulting from an imagined, or a real threatening condition. On the extreme end panic attacks can occur due to heightened(增加) feelings of anxiety.
There are two main symptoms(症状) during an anxiety / panic attack and these are physical and emotional symptoms. Physical symptoms include difficulty in breathing, shaking, direct feeling of heat, rapid heartbeat and tiredness while emotional symptoms deal with worrying, depression, fear, and lack of focus.
In spite of the negative impression we have for anxiety, it is not dangerous in any way whatever. The feeling of anxiety is not bad, in fact it’s more of a defensive feeling which protects us from possible danger by engaging a response within us in fight or fight situations. So it’s not the “bad guy”, you just have to learn how to control it. Panic attacks, however, are far more dangerous and should be a concern to your health. Panic can sometimes result in blurred (模糊不清的) vision, difficulty in breathing due to a tight chest. The best way to different anxiety from any serious illness is to ask a medical expert for advice on a regular basis.
小题1:According to the passage, a panic attack is _______________.
A.as serious as an anxiety attack | B.not so serious as an anxiety attack |
C.resulted from an anxiety attack | D.resulted in an anxiety attack |
A.happens suddenly | B.becomes more serious |
C.mixes things together | D.connects something with |
A.he doesn’t want to have anything to eat |
B.he has trouble in hearing and vision |
C.he is always worried about others |
D.he can’t pay attention to what he does |
A.an anxiety attack does good to us | B.an anxiety attack does no harm to us |
C.an anxiety attack is a serious illness | D.an anxiety attack is very dangerous |
A.Symptoms of Anxiety Attacks | B.Ways of Getting Rid of Anxiety |
C.Harm Caused by Anxiety | D.Getting to know Anxiety |
Researchers divide 20 high-risk diabetic patients into two groups.Both groups were given standard diabetes medicine.Group L viewed 30 minutes of humor of their choice, while Group C, the control group, did not.This went on for a year of treatments.
By two months into the study, the patients in the laughter group had lower level of the hormones epinephrine (肾上腺素), considered to cause stress, which is known to be deadly.After the 12 months, HDL cholesterol rises 26 percent in Group L but only 3 percent in Group C.In another measure, C-reactive proteins, a maker of heart disease, drop 66 percent in the laughter group but only 26 percent in the control group.
“The best doctors believe that there is a physical good brought about by the positive emotion, happy laughter,” said study leader Lee Berk of Loma Linda University.And other research has found that humor makes us more hopeful.Still, more study is needed, Berk said.The research by Berk found that humor can bring about similar changes in body chemistry, which was proved in the new study.The research result will be presented this month at the meeting in the US.Research at the University of Maryland School of Medicine shows that laughter causes the inner lining of blood vessels to expand, increasing blood flow in a way thought to be healthy.
“Lifestyle choices have an important effect on health and these are choices which we and patients should pay attention to, rather than prevention and treatment,” Berk said in a statement this week.
小题1:Why did the scientists carry on the new research?
A.To find out if laughter was good to health. |
B.To discover the best medicine to cure diabetes. |
C.Because the number of diabetic patients is the largest in the world. |
D.Because diabetic patients need more laughter than other patients. |
A.C-reactive proteins increase 66 percent in Group C |
B.the level of the hormones epinephrine stays the same in both groups |
C.the level of the hormones epinephrine has dropped |
D.C-reactive proteins reduced 66 percent in Group L |
A.something bad to our health | B.something good to our health |
C.a kind of wonderful medicine | D.a kind of dangerous disease |
A.Blood is made thick by laughter. | B.Laughter makes blood vessels thin. |
C.Laughter increases blood pressure. | D.Laughter makes blood flow fast. |
A.choose lifestyles carefully | B.change our lifestyles |
C.prevent our lifestyles in advance | D.pay less attention to the positive emotion |
The mental cause of his disease was an experience of breaking up five years ago with several friends, whom he had known for over twenty years. This experience broke his heart. Not knowing how to “mend” his broken heart, his body created a “repair” by surrounding his heart with fluid to protect it from the sad feelings.
Our work focused on reminding him of the feelings of being loved and forgiving his friends. Months later, his hearts was mended and the fluid disappeared. He left my office after the final session with a smile on his face and a spring in his step.
The key is: to create a healthy body, you must be healthy not only in body, but also in mind.
To be mentally healthy, you need to build up strong relationships. Creating strong relationships will insure that you are accompanied by a network of loving persons. It is important for building a support system that lifts your spirits. Even when you are alone, you will not feel lonely or upset. Strong relationships are not spaceships——they are not hard to build.
小题1:In order to cure his illness, which of the following ways did the patient try?
taking many medicines having an operation
seeing a metaphysical healer visiting different doctors
A. | B. | C. | D. |
A.a mentally healthy body | B.a repaired heart |
C.a network of loving persons | D.a support system |
A.Loving others will keep you in good spirits. |
B.Heart illness can be cured without operation. |
C.Creating strong relationships will keep you healthy. |
D.Spiritual health is necessary for physical health. |
A.Old friendship is easy to lose. | B.A good friendship is a useful medicine |
C.The best doctor is your own body | D.It needs many efforts to build relationships |
A.How to build strong relationships | B.How to protect your heart |
C.How to keep healthy mentally | D.How to live a healthy life |
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.
小题1: 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 |
A.can only be sold to the rich | B.should be completely free |
C.are too expensive | D.are not needed by the poor |
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. |
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. |
If you have trouble sleeping, the American Sleep Disorders Association suggests that, for a week or two, you put down the time you go to bed, get up, exercise, and drink coffee, tea or wine. The purpose is to find the habits that may affect your sleep.
Then:
a. Don’t drink coffee in the six hours before going to bed.
b. Stop smoking and drinking at bedtime.
c. Don’t sleep during the day.
d. Go to bed at the same time every night. Set your alarm clock for the same time every morning and get up at that time, whether or not you sleep well.
e. Use the bedroom only for sleep. Read, watch TV, eat and talk elsewhere.
f. Take sleeping pills according to your doctor’s directions and don’t take them for longer than three weeks at a time.
g. If you haven’t fallen asleep within 15 minutes of going to bed, don’t turn over worrying about it. Get up and read or watch TV until you are sleepy, then return to bed.
If you continue to have trouble sleeping, ask your doctor for help or go to a sleep-disorders center.
小题1: According to the passage, there is probably if you are not able to fall
asleep or stay asleep.
A.a bad way of sleeping | B.a disorder in sleep |
C.a physical reason | D.a problem caused by the brain |
A.ask a doctor for help or go to a sleep-disorders center |
B.put down the time you do things every day |
C.do more physical exercise |
D.find out the cause first |
A.Taking some sleeping pills every day. |
B.Reading books before you go to bed. |
C.Setting your alarm clock at night. |
D.Forming good living habits. |
A.tell us not being able to fall asleep is a serious disease |
B.provide us with some suggestions on sleep problem |
C.persuade us not to go to see the doctors when we are ill |
D.help the American Sleep Disorders Association to find the causes of not being able to fall sleep |
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