题目
题型:不详难度:来源:
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.
1. 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 w*w
2. 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
3. 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
4. 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
5. 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
答案
解析
2. D 细节理解题。从“If it is very cold,the brain can live without blood for 30 minutes”可知。
3. A 细节理解题。根据第二段内容可知选A。
4. B 细节理解题。根据最后一段第三句至第九句可推知选B。
5. C 细节理解题。从第三段内容可知C项说法是没有根据的
核心考点
试题【阅读理解: 阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项。It is difficult for doctors to help a person】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
Imagine you’re at a party full of strangers. You’re nervous. Who are these people? How do you start a conversation? Fortunately, you’ve got a thing that sends out energy at tiny chips in everyone’s name tag (标签). The chips send back name, job, hobbies, and the time available for meeting-whatever. Making new friends becomes simple
This hasn’t quite happened in real life. But the world is already experiencing a revolution using RFID technology.
An RFID tag with a tiny chip can be fixed in a product, under your pet’s skin, even under your own skin. Passive RFID tags have no energy source-batteries because they do not need it. The energy comes from the reader, a scanning device, that sends out energy (for example, radio waves) that starts up the tag immediately.
Such a tag carries information specific to that object, and the data can be updated. Already, RFID technology is used for recognizing each car or truck on the road and it might appear in your passport. Doctors can put a tiny chip under the skin that will help locate and obtain a patient’s medical records. At a nightclub in Paris or in New York the same chip gets you into the VIP (very important person) section and pays for the bill with the wave of an arm.
Take a step back:10 or 12 years ago,you would have heard about the coming age of computing. One example always seemed to surface: Your refrigerator would know when you needed to buy more milk. The concept was that computer chips could be put everywhere and send information in a smart network that would make ordinary life simpler
RFID tags are a small part of this phenomenon. “The world is going to be a loosely coupled set of individual small devices, connected wirelessly,” predicts Dr.J.Reich. Human right supporters are nervous about the possibilities of such technology. It goes too far tracking school kids through RFID tags, they say. We imagine a world in which a beer company could find out not only when you bought a beer but also when you drank it. And how many beers. Accompanied by how many biscuits. w*w*When Marconi invented radio, he thought it would be used for ship-to-shore communication. Not for pop music. Who knows how RFID and related technologies will be used in the future. Here’s a wild guess: Not for buying milk.
1. The article is intended to______.
A. warn people of the possible risks in adopting RFID technology
B. explain the benefits brought about by RFID technology
C. convince people of the uses of RFID technology
D. predict the applications of RFID technology
2. We know from the passage that with the help of RFID tags, people .
A. will have no trouble getting data about others
B. will have more energy for conversation
C. will have more time to make friends
D. won’t feel shy at parties any longer
3. Passive RFID tags chiefly consist of .
A. scanning devices B. radio waves C. batteries D. chips
4. Why are some people worried about RFID technology?
A. Because children will be tracked by strangers.
B. Because market competition will become more fierce.
C. Because their private lives will be greatly affected.
D. Because customers will be forced to buy more products.
5. The last paragraph implies that RFID technology .
A. will not be used for such matters as buying milk
B. will be widely used, including for buying milk
C. will be limited to communication uses
D. will probably be used for pop music
One night, Philo read a magazine story about the idea of sending pictures and sound through the air. Anyone with a device that could receive this electronic information could watch the pictures and hear the sound. The magazine story said some of the world’s best scientists were using special machines to try to make a kind of device to send pictures.
14-year-old Philo decided these famous scientists were wrong and that mechanical devices would never work. He decided that such a device would have to be electronic. Philo knew electrons could be made to move extremely fast. All he would have to do was to find a way to make electrons do the work.
Very quickly Philo had an idea for such a receiver. It would trap light in a container and send the light on a line of electrons. Philo called it “light in a bottle”.
Several days later, Philo told his teacher about a device that could capture pictures. He drew a plan for it, which he gave his teacher. Philo’s drawing seemed very simple, but it clearly showed the information needed to build a television. In fact, all television equipment today still uses Philo’s early idea.
Philo Farnsworth was only 14 years old then. He knew no one would listen to a child. In fact, experts say that probably only ten scientists in the world at that time could have understood his idea.
On September 7th, 1927, Philo turned on a device that was the first working television receiver. In another room was the first television camera. Philo had invented the special camera tube earlier that year.
The image produced on the receiver was not very clear, but the device worked. In1930, the United States government gave Philo patent documents. These would protect his invention from being copied by others.
56. Before he was 14 years old, _______________.
A. Philo had formed the idea of sending pictures and sound through the air
B. Philo had learned a great deal in science from his father
C. Philo had helped his parents on their family’s farm
D. Philo had had a very strong interest in science
57. How did Philo get the idea of inventing a television?
A. By learning from his science teacher.
B. By reading a story about the idea in a magazine.
C. By thinking hard himself.
D. By using his knowledge about electrons.
58. Philo referred to “ _________ ” when he called something “light in a bottle”.
A. a container sending pictures and sound through the air
B. a light box with a line of electrons in a bottle
C. a receiver that held light and sent it on a line of electrons
D. a way to make electrons send pictures
59. We can infer from the passage that _________________.
A. without his teacher’s help, he would never have become interested in science
B. he made the first working television receiver and the first television camera himself
C. Philo’s early ideas about the television could not be understood by most people of that time
D. his invention was recognized and protected immediately he made it
60. In the passage, the author mainly tells us _______________.
A. that Philo Farnsworth was a great inventor
B. when and where the television was invented
C. who made it possible to create television
D. how Philo Farnsworth invented the television
Seth had his hat on his head, and the butter in his hat. He was anxious to leave. However, the rightful owner of the butter offered him a cup of hot drink, took him by the shoulders and planted him in a seat close to the stove. The grocer stuffed in the stove as many sticks of wood as he could possibly fit inside.
Seth already could feel the butter settling down closer to his hair, so he jumped up, declaring that he must go. “Sit down; don’ t be in such a hurry,” replied the grocer, pushing him back into the chair again.
Streak after streak of the butter came pouring from under the poor man’s hat. The fun-loving grocer kept on stuffing wood into the stove. Then, as if surprised, he remarked, “You seem to be perspiring (排汗) as if you were warm! Let me put your hat away for you.”
“No!” exclaimed poor Seth at last, unable to stand it a moment longer. “No, I must go; let me out.”
A greasy (油腻的) waterfall of butter was now pouring down the poor man’s face and neck, soaking (浸泡) into his clothes, and trickling down his body into his boots. He was bathed in oil from head to toe.
Just as his victim darted out the door, the grocer said, “I reckon (估计) the fun I’ve had out of you is worth the money, so I shan’t charge you for that pound of butter in your hat.”
1.Why did Seth put the butter in his hat?
A. Because he just wanted to play a trick on the grocer.
B. Because he had nowhere to put the butter but in the hat.
C. Because he wanted to revenge himself on the grocer.
D. Because he didn’t want to pay for it.
2.What is not the action that the grocer took as a revenge?
A. The grocer offered Seth a cup of hot drink.
B. The grocer forced Seth to take a seat near the stove.
C. The grocer overcharged Seth for the butter.
D. The grocer offered to take off Seth’s hat.
3.What was the purpose of the grocer’s hospitality?
A. He wanted to make friends with Seth.
B. He wanted to be kind to him.
C. He wanted to take his revenge on Seth by making the butter in his hat melt.
D. He wanted to sell more of his goods.
4.What is the best title of the passage?
A. Great fun B. The right revenge C. A fun-loving grocer D. A foolish customer
I can’t count the times I called my sister and said, “How about going to lunch in half an hour?” She would gasp and stammer (结结巴巴地说), “I can’t. I have clothes on the line. My hair is dirty. I wish I had known it yesterday, I had a late breakfast, and it looks like rain.” And my personal favorite response: “It’s just Monday.” She died a few years ago. We never did have lunch together. From then on, I’ve tried to be a little more flexible.
Life has a way of going faster as we get older. The days get shorter, and the list of promises made to ourselves gets longer. One morning, we awaken, and all have to show for our lives is repetition of “I’m going to” , “I plan on” and “Someday, when things are settled down a bit.”
When anyone calls my “seize the moment” friend, she is open to adventure and available for trips. She keeps an open mind on new ideas. Her enthusiasm for life is contagious. You talk with her for five minutes, and you’re ready to trade your bad feet for a pair of Rollerblades and skip an elevator for a bungee cord.
My lips have not touched ice cream in 10 years . I love ice cream. The other day, I stopped the car and bought a triple-decker. If my car had hit an iceberg on the way home, I would have died happily.
Now ... go on and have a nice day. Do something you WANT to … not something on your SHOULD DO list.
1.The example of the writer’s sister serves as ________.
A. an argument B. an introduction C. a support D. a conclusion
2.The writer thinks that the excuse “It’s just Monday.” is acceptable, because ________.
A. it is still likely that they can have lunch together some time later
B. it sounds most reasonable of all the excuses
C. it shows respect for the writer’s suggestion
D. it indicates the time when they can have lunch together
3.The underlined word “contagious” in the fourth paragraph means “________” .
A. appropriate B. influential C. practical D. evident
4.What is the purpose of the writer by writing this passage?
A. To suggest how time flies.
B. To persuade busy people to relax.
C. To advise people to keep their promise.
D. To persuade readers to be flexible on their schedule for practical joy.
There is no standard for how much water a person needs each day, but experts usually put the minimum at fifty litres. The government of India promises (but rarely provides) forty. Most people drink two or three litres—less than it takes to wash a toilet. The rest is typically used for cooking and bathing. Americans consume between four hundred and six hundred litres of water each day, more than any other people on earth. Most Europeans use less than half that. The women of Kesum Purbahari each hoped to drag away a hundred litres that day—two or three buckets’ worth. Shoba has a husband and five children, and that much water doesn’t go far in a family of seven, particularly when the temperature reaches a hundred and ten degrees before noon. She often makes up the difference with bottled water, which costs more than water delivered any other way. Sometimes she just buys milk; it’s cheaper. Like the poorest people everywhere, the people of New Delhi’s slums spend a far greater percentage of their incomes on water than anyone lucky enough to live in a house connected to a system of pipes.
46. The underlined word “slum” most likely means ______.
A. a village
B. a small town
C. an area of a town with badly-built, over-crowded buildings
D. the part of a town that lacks water badly
47. Sometimes the water tanker doesn’t come because ______.
A. the weather is bad
B. there is no electricity
C. there is no water
D. people don’t want the dirty water
48. A person needs at least ________ litres of water a day.
A. a hundred B. four hundred C. forty D. fifty
49. Which of the following statements is wrong?
A. a hundred litres of water a day is enough for Shoba’s family
B. Americans uses the largest amount of water each day
C. in Kesum Purbahari milk is cheaper than bottled water
D. Shoba has a family of seven people
50. The passage mainly tells us ______.
A. how women in Kesum Purbahari gets their water
B. how much water a day a person deeds
C. that India lacks water badly
D. how India government manages to solve the problem of water
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