It is difficult for doctors to help a person with a damaged brain. Without enough blood, the brain lives for only three to five minutes. More often the doctors can’t fix the damage. Sometimes they are afraid to try something to help because it is dangerous to work on the brain. The doctors might make the person worse if he operates on the brain.
Dr. Robert White, a famous professor and doctor, thinks he knows a way to help. He thinks doctors should make the brain very cold. If it is very cold, the brain can live without blood for 30 minutes. This gives the doctor a longer time to do something for the brain.
Dr. White tried his idea on 13 monkeys. First he taught them to do different jobs, then he operated on them. He made the monkeys’ blood back to the monkeys’ brains. When the brain’s temperature was 10℃, Dr. White stopped the blood to the brain. After 30 minutes he turned the blood back on. He warmed the blood again. After their operations the monkeys were like they had been before. They were healthy and busy. Each one could still do the jobs the doctor had taught them. The biggest difficulty in operating on the damaged brain is that .
| A．the time is too short for doctors | B．the patients are often too nervous |
| C．the damage is extremely hard to fix | D．the blood-cooling machine might break down |
The brain operation was made possible mainly by .
| A．taking the blood out of the brain | B．trying the operation on monkeys first |
| C．having the blood go through a machine | D．lowering the brain’s temperature |
With Dr. White’s new idea, the operation on the damaged brain .
| A．can last as long as 30 minutes | B．can keep the brain’s blood warm |
| C．can keep the patient’s brain healthy | D．can help monkeys do different jobs |
What is the right order of the steps in the operations?
a. send the cooled back to the brain b. stop the blood to the brain
c. have the blood cooled down d. operate on the brain
| A．a, b, c, d | B．c, a, b, d | C．c, b, d, a | D．b, c, d, a |
Which of the following is not true?
| A．If there isn’t enough blood, the brain can live for only three to five minutes. |
| B．If the brain is very cold, it can live without blood for half an hour. |
| C．Dr. White tried his idea for thirteen times. |
| D．After their operations, the monkeys were healthy and busy again. |
If you see someone drowning, speed is very important. Once you get him out of the water, if he isn't breathing, you have four minutes before his brain is completely destroyed. Support his neck, move his head back and press his chin upwards. This stops the tongue blocking the airway in the throat and is sometimes enough to get him breathing again. If that doesn't work, start mouth-to-mouth breathing. Press his nostrils (the two holes at the end of your nose, through which you breathe and smell things) together with your fingers. Open your mouth and take a deep breath. Blow into his lungs until his chest rises, then remove your mouth and watch his chest fall. Repeat twelve times a minute. Keep doing until professional help arrives.
To bring a child back to life, keep your lips around his mouth and gently blow into his mouth. Give the first four breaths as quickly as possible to fill the blood with oxygen. If, in spite of your efforts, he starts turning a blue-grey colour, and you can feel no pulse(脉搏), then pressing is the last chance of saving his life.
With arms straight, rock forwards, pressing down on the lower half of the breastbone. Don't be too hard or you may break a rib. Check how effective you are by seeing if his colour improves or his pulse becomes independent to your chest pressing. If this happens, stop the pressing. Otherwise continue until rescue arrives. If you want to save someone drowning, you __________.
| A．have to pull off his clothes first . |
| B．should try to get him out of water as quickly as possible. |
| C．should first make out who he is. |
| D．ought to throw a life coat to him first . |
Once a person stops breathing, it means ___________.
| A．you have no more than 4 minutes to bring him to life again . |
| B．his brain is completely damaged . |
| C．he has passed away. |
| D．there is no way to save his life . |
To press his chin upwards is a way to _____________.
| A．keep the tongue from blocking the airway in the throat . |
| B．prevent the tongue from stopping the airway in the throat . |
| C．wipe the tongue out of the throat . |
| D．see if he can possibly be saved . |
If the drowning boy has no pulse,_____________.
| A．press his chin upwards is enough to get him breathing . |
| B．blow air into his mouth is sure to save his life . |
| C．press his nostrils together with your fingers can work . |
| D．press is the last chance of saving his life . |
Which of the following statement is true?
| A．Don’t stop pressing his chest, if the drowning man starts breathing again. |
| B．If you see someone drowning, you must give him mouth-to-mouth breathing. |
| C．If a man does not breathe for four minutes, his brain will be completely destroyed. |
| D．When pressing, you can do it as hard as you can. |
Popeye the Sailor first became a popular cartoon in the 1930s.The sailor in that cartoon ate lots of spinach to make him strong. People watched him, and they began to buy and eat a lot more spinach. Popeye helped sell 33 percent more spinach than before! Spinach became a necessary part of many people’s diets. Even some children who hated the taste began to eat the vegetable.
Many people thought that the iron in spinach made Popeye strong, but this is not true. Spinach does not have any more iron than any other green vegetable. People only thought spinach had a lot of iron because the people who studied the food made a mistake. In the 1890s, a group of people studied what was inside vegetables. This group said that spinach had ten times more iron than it did. The group wrote the number wrong, and everyone accepted it.
Today, we know that the little iron there is in spinach cannot make a difference in how strong a person is. However, spinach does have something else which the body needs—folic acid.
It is interesting to point out that folic acid can help make a person strong. Maybe it was really the folic acid that made Popeye strong all along.A good title for this reading passage is______.
| A．Popeye the Sailor | B．The Truth About Spinach |
| C．A Mistake with Numbers | D．Folic Acid Makes You Strong |
Why did many people eat spinach after they saw Popeye the Sailor?
| A．They thought spinach made them strong. |
| B．They thought Popeye was funny. |
| C．Spinach had a lot of iron. |
| D．People liked folic acid. |
A research group told people that spinach______.
| A．made Popeye strong |
| B．was a green vegetable |
| C．had less iron than other green vegetables |
| D．had more iron than other green vegetables |
The reading passage says that perhaps Popeye got his strength from______.
| A．iron | B．folic acid | C．spinach | D．exercise |
Folic acid is ______.
| A．something in food | B．a vegetable | C．dangerous | D．a certain kind of spinach |
阅读下面短文并回答问题（请注意问题后的词数要求）。
When your toothbrush is at the end of its days, don’t just throw it away, as a survey has revealed many other uses for an old toothbrush.
The survey was carried out by the Dental Health Foundation to promote National Smile Month and more than 1, 000 people participated in the survey. It found that more than four in every five people re-use their toothbrush for another purpose.
Four in ten people use an old toothbrush to brush bathroom tiles (瓷砖), and almost a third use it to clean kitchen appliances. More than a quarter of those questioned use old toothbrushes to clean jewellery, and roughly one in every five use them for shining shoes. Some other uses for toothbrushes include cleaning bikes, computer keyboards, toilet seats, fish tanks and finger nails.
The survey also found that the age of the owner can determine what happens to a toothbrush after it is not suitable to be used to brush teeth any more. People over 75 are three times more likely to re-use their toothbrush for a different purpose than those between the ages of 16 and 34 and twice more likely than those between 35 and 44.
Additionally, to reuse their toothbrush for chores (日常琐事) and other uses than their male counterparts. Some women admitted to using their toothbrush to apply hair dye (染料)while some men said they used an old toothbrush to clean their dog’s teeth.
Chief Executive of the British Dental Health Foundation, Dr Nigel Carter, said, “We all should get through around four toothbrushes every year if we are to keep our oral health in great condition. Generally people don’t change their toothbrushes often enough, but there are still plenty of toothbrushes
lying around the house. Our survey has shown that people have realized that a toothbrush is of great value and has a role to play beyond its normal use.”What would be the best title for the passage? (no more than 10 words)
What does the underlined word “It” in Paragraph 2 probably refer to? (no more than 2 words)
What percentage of people use old toothbrushes to shine their shoes? (no more than 4 words)
Complete the following statement with proper words. (no more than 3 words)
The results of the survey also showed that whether a toothbrush is reused after it’s replaced can be determined by the owner is. Fill in the blank in Paragraph 5 with proper words. (no more than 5 words)
Everyone has got two personalities—the one that is shown to the world and the other that is secret and real．You don't show your secret personality when you're awake because you can control your behaviour，but when you're asleep， your sleeping position shows the real you．In a normal night，of course，people frequently change their position．The important position is the one that you go to sleep in．
If you go to sleep on your back，you're a very open person．You normally trust people and you are easily influenced by fashion or new ideas．You don't like to upset people，so you never express your real feelings．You're quite shy and you aren't very confident．
If you sleep on your stomach，you are a rather secretive（不坦率的）person．You worry a lot and you're always easily upset．You're very stubborn（顽固的），but you aren't very ambitious．You usually live for today not for tomorrow．This means that you enjoy having a good time．
If you sleep curled up（卷曲），you are probably a very nervous person．You have a low opinion of yourself and so you're often defensive．You're shy and you don't normally like meeting people．You prefer to be on your own．You're easily hurt．
If you sleep on your side，you have usually got a well-balanced personality．You know your strengths and weaknesses．You're usually careful． You have a confident personality．You sometimes feel anxious，but you don't often get depressed．You always say what you think even if it annoys people． According to the writer，you naturally show your secret and real personality _____.
| A．only in a normal night |
| B．only when you go to sleep |
| C．only when you refuse to show yourself to the world |
| D．only when you change sleeping position |
Which is NOT mentioned in the second paragraph about a person's personality？
| A．He or she is always open with others． |
| B．He or she always likes new ideas earlier than others． |
| C．He or she is always easily upset． |
| D．He or she tends to believe in others． |
Point out which sentence is used to show the personality of a person who is used to sleeping on his or her stomach？
| A．He or she is careful not to offend others． |
| B．He or she doesn't want to stick to his or her opinion． |
| C．He or she likes to bring others happiness． |
| D．He or she can't be successful in any business． |
Maybe you don't want to make friends with a person who sleeps curled up．Why？
| A．He or she would rather be alone than communicate with you． |
| B．He or she is rarely ready to help you． |
| C．He or she prefers staying at home to going out． |
| D．He or she wouldn't like to get help from you． |
It appears that the writer tends to think highly of the person who sleeps on one side because ______ ．
| A．he or she always shows sympathy for people |
| B．he or she has more strengths than weaknesses |
| C．he or she is confident，but not stubborn |
| D．he or she often considers annoying people |
People and the sources of air pollution are found in the same places. This means that cities with large populations have the biggest problem of dirty air. Air pollution is caused by many different things. A major source of air pollution is the gas fumes from cars. Statistics show that 93 percent of all auto trips are within cities. Another major source of dirty air is the burning of coal and oil for energy. This energy is needed to make electricity. Of course, much more electricity is used in the city than in the country.
On the average, we throw away more trash and garbage than the year before. The burning of garbage contributes to air pollution. Many major industries are also responsible for the dirty air in the around cities. The fumes from iron, steel, chemical, and petroleum production add particles to the air.
The effects of air pollution range from mild headaches to death. The levels of pollution found in heavy for traffic may cause headaches for loss of clear vision. Wherever coal and oil are used for fuel, fumes may kill trees and plants and cause metal to corrode. In some of the larger cities, these fumes endanger the live of human beings by contributing to lung diseases and causing early death.The key point of the passage is that _________.
| A．the cause of air pollution is people |
| B．the causes and the effects of air pollution are both found in cities |
| C．the effects of air pollution range from headaches to death |
| D．air pollution is caused by dirty air |
What is the purpose of this passage?
| A．to persuade people to stop polluting the air |
| B．to tell the causes of air pollution |
| C．to tell why cities are bad places to live |
| D．to describe why cities are bad places to live |
Why is air pollution more grave in the city than in the country?
| A．Because there are larger populations in cities. |
| B．Because the air in the city is dirty. |
| C．Because there are more cars in the city. |
| D．Because there are much more gas fumes from cars and burning of coal and oil for energy in the city than in the country. |
The fumes from coal and oil may cause metal ______.
| A．to corrode | B．to twist |
| C．to turn black | D．to become rusty |
In larger cities, the fumes from coal and oil may contribute to ___________.
| A．heart disease | B．loss of clear vision |
| C．lung diseases | D．serious headache |