题目内容
The symptoms(症状) the doctor told us yesterday was really d__________(令人焦虑)
Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly, The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.
Certain microorganisms (微生物) cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release (释放) poisons that make people sick.
Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepaid. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops.
Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.
When people handle food properly, the risk of food poisoning is very small Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with dirty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat raid mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.
Most people recover from food poisoning after a few days of resting and drinking extra water. If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.
【小题1】Which of the following statements is NOT true?
| A.Food when poisoned can make people sick. |
| B.Food poisoning means death. |
| C.Food poisoning comes in varieties. |
| D.Food poisoning can be serious. |
| A.are always accompanied by a fever |
| B.are too common to be noted |
| C.can be noticed within hours |
| D.can be ignored |
| A.some chemicals | B.low temperatures |
| C.some tiny living things | D.certain natural materials |
| A.natural materials are safe in food processing |
| B.chemicals are needed in food processing |
| C.food poisoning can be kept under control |
| D.food poisoning is out of control |
The common cold is the world’s most widespread illness, which is plagues(疫病) that people receive.
The most widespread fallacy(谬误) of all is that colds are caused by cold. They are not. They are caused by viruses(病毒) passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.
During the First World War soldiers who spent long periods in the trenches(战壕), cold and wet, showed no increased tendency to catch colds. In the Second World War prisoners at the Auschwitz Concentration Camp(奥斯维辛集中营), naked and starving, were astonished to find that they seldom had colds. At the Common Cold Research Unit in England, volunteers took part in experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time. After taking hot baths, they put on bathing suits, allowed themselves to be with cold water, and then stood about dripping wet(湿透)in drafty(通风的)room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.
If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the winter? Despite the most pains-taking research, no one has yet found the answer. One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other time, and this makes it easier for cold viruses to be passed on.
No one has yet found a cure for the cold. There are drugs and pain suppressors(止痛片) such as aspirin, but all they do is relieve the symptoms.
【小题1】The writer offered _______ examples to support his argument.
| A.4 | B.5 | C.6 | D.3 |
| A.they are working in the isolated arctic regions |
| B.they are writing reports in terribly cold weather |
| C.they are free from work in the isolated arctic regions |
| D.they are coming into touch again with the outside world |
| A.suffered a lot | B.never caught colds |
| C.often caught colds | D.became very strong |
| A.the experiments on the common cold |
| B.the fallacy about the common cold |
| C.the reason and the way people catch colds |
| D.the continued spread of common colds |
In 1977, a dead author of detective stories saved the life of a 19-month-old baby in a most unusual way. The author was Agatha Christie, one of the most successful writers of detective stories in the world.
In June 1977, a baby girl became seriously ill in Qatar, near Saudi Arabia. Doctors were unable to find out the cause of her illness with confidence, so she was sent to Hammersmith Hospital in London. She was then only semi-conscious and on the "Dangerously Ill" list. A team of doctors hurried to examine the baby only to discover that they, too, were confused by the very unusual symptoms (症状). While they were discussing the baby's case, a nurse asked to speak to them. "Excuse me," said Nurse Marsha Maitlan, "but I think the baby is suffering from thallium (铊) poisoning."
"What makes you think that?" Dr. Brown asked. "Thallium poisoning is extremely rare."
"A few days ago, I was reading a novel called A Pale Horse by Agatha Christie," Nurse Maitlan explained. "In the book, somebody uses thallium poison, and all the symptoms are described. They're exactly the same as the baby's."
"You're very thoughtful and you may be right," another doctor said. "We'll carry out some tests and find out whether it's thallium or not."
Tests showed that the baby had indeed been poisoned by thallium, a rare metallic substance used in making special glass. Once they knew the cause of the illness, the doctors were able to give the baby the correct treatment. She soon recovered and was sent back to Qatar. Later it was reported that the poison might have come from an insecticide (杀虫剂) used in Qatar.
1.The one who first suggested the correct cause of the baby's illness was _____.
|
A.a doctor in Qatar |
B.Dr. Brown |
|
C.Nurse Maitlan |
D.Agatha Christie |
2.As far as we can tell from the passage, Agatha Christie _____.
|
A.had spent a long time studying the baby's case |
|
B.visited the baby in the hospital at Hammersmith |
|
C.had never met this baby |
|
D.gave Nurse Maitlan some advice on the phone |
3.It seems likely from the passage that the baby's illness had something to do with _____.
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A.a harmful substance used to kill insects |
|
B.a dangerous pair of glasses |
|
C.the water in Qatar |
|
D.a dead writer |