Properly with numbers, the books can be easily found. A．marked B．mark C．to mark D．marking 题目和参考答案——青夏教育精英家教网—

题目内容

Properly _______ with numbers, the books can be easily found.

A．marked　

B．mark　　

C．to mark　　

D．marking

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【解析】略

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If you want to stay young, sit down and have agood think. This is the research finding of a team of Japanese doctors who say that most of our brains are not getting enough exercise and as a result, we are aging unnecessarily soon.

Professor Taiju Matsuzawa wanted to find out why otherwise healthy farmers in northern Japan appeared to be losing their ability to think and reason at a relatively early age, and how the

process of aging could be slowed down.With a team of colleagues at Tokyo National University,

he set about measuring brain volumes of a thousand people of different ages and jobs.

Computer technology enabled the researchers to get right measurements of the volume of the front and side sections of the brain, which relate to intellect and emotion, and determine the human character. Contraction (收缩) of the front and side parts as cells died was observed in some subjects in their thirties, but it was still not clear in some sixty and seventy-year-olds.Matsuzawa concluded from his tests that there is a simple remedy (补救) to the contraction normally associated with age using the head.

The findings show in general terms that contraction of the brain begins sooner in people in the country than in towns. Those least at risk, says Matsuzawa, are lawyers, followed by university professors and doctors. White collar workers doing routine work in government offices are, however, as likely to have shrinking (萎缩) brains as farm workers, bus drivers and shop assistants.

Matsuzawa's findings show that thinking can prevent the brain from shrinking. Blood must circulate properly in the head to supply the fresh oxygen the brain cells need. "The best way to keep good blood circulation is through using the brain," he says, "Think hard and engage in conversation. Don't rely on pocket calculators."w

The team of doctors wanted to find out ______.

A. why certain people age sooner than others B. how to make people live much longer

C. the size of certain people's brains D. the people with more intelligence

On what are their research findings based?

A. A survey of farmers in northern Japan.

B. Tests performed on a thousand old people.

C. The study of brain volumes of different people.

D. The latest development of computer technology.

Matsuzawa thinks that _______.

A. our brains grow as we grow older

B. the front section of the brain does not shrink

C. sixty-year-old people have better brains than thirty-year-olds

D. the contraction of brains is connected with brain exercise

According to the passage, which people seem to age slower than others?

A. Farmers. B. Lawyers. C. Government workers. D. Shop assistants.w

There are good Santas and there are bad Santas. The good Santas all realize one thing: In the mind of a child, Santa Claus is perfect.

That’s difficult. And so they come from around the world to attend the Charles W. Howard School in Midland, Mich. The school offers a three-day, 40-hour course for Santas hoping to be excellent. There’s a real range to what Santas earn, from big bucks for large events to no pay for charities^①. One thing for them all is a pure love for children.

A former Macy’s Santa named Charles Howard founded the Michigan school in 1937. “Many people will think if you have a suit and you’re a Santa,” said Tom Valent, the school’s current dean. “It’s more than that.” So with a pet reindeer^②, his properly named wife Holly and a workshop full of wonder.

The school teaches everything from breathing techniques for carol singing to the beard maintenance. There are lessons in child psychology, sign language and even media training for talk-show appearances and call-in shows. Santas also need to make sure they know all the names of the reindeer. What’s harder to deal with, however, is children who ask for Christmas gifts like bringing daddy home or making mommy happy again.

After spending time in the classroom, Weir went to the mall to test his training. However, at one point, his hat fell off, and he was unsure how to react. “You’re the real Santa,” Valent said. “Pick that hat up, slip it back on, keep smiling and do your job. You’ve got to stay on top of your game. Even the last one at night, when you’re tired, you’ve got to remember: This one’s forever, so do a good job.”

Notes:

charity n. 慈善，慈善团体

reindeer n. 驯鹿

According to the passage, good Santas should be the ones that ________.

A. can offer the children some gifts B. help adults look after their children

C. have ability to make children happy D. should be perfect in the mind of children

The underlined words “big bucks” should refer to ________.

A. lots of money B. many gifts C. loves for children D. gifts from children

The Michigan school was founded by Charles Howard with the purpose to ________.

A. train the pet reindeer for the Santas B. earned money from its students

C. train perfect Santas for the world D. show the world’s concern to the poor

According to Weir’s performance, we can conclude that ________.

A. Weir was short of experience B. Weir was not fit for the job as a Santa

C. Weir did very badly in the game D. Weir was not a good student in school

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.W_w w.k*s*5 u.c@o m
Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. 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.W_w w.k*s*5 u.c@o m
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 wild 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.

【小题2】We know from the passage that the symptoms of food poisoning .

A．are always accompanied by a fever

B．are too common to be noted

C．can be noticed within hours

D．can he ignored

【小题3】Food poisoning can be caused by all the following EXCEPT .

A．some chemicals

B．low temperatures

C．some tiny living things

D．certain natural materials

【小题4】From Paragraph 5,we can learn that .

A．mushrooms should not be eaten

B．vegetables are safer than meat and seafood

C．natural poisons are more dangerous than chemicals

D．different types of food should be handled differently

【小题5】It can be inferred from the passage that .

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 air bag is a piece of safety equipment in cars. It was first designed by John W. Hetrick in 1952. Like many inventions, he came up with the idea as a result of an event that had occurred in his life. He says:
“In the spring of 1952, my wife, my seven-year-old daughter, Joan, and I were out for a Sunday drive in our 1948 Chrysler Windsor. About three miles outside Newport we were watching for deer jumping across the road. Suddenly, there was a large rock in our path. I hit the brakes and we went into a ditch(壕沟).
“As I applied the brakes, both my wife and I threw our hands up to keep our daughter from hitting the car. There was soft mud in the ditch, so the car wasn’t damaged, and no one was hurt.”
“During the ride home I couldn’t stop thinking about the accident. I asked myself,‘Why couldn’t some object come out to stop you from striking the inside of the car?’As soon as I got home that night I drew some sketches(草图). Each evening for the following two weeks, I’d add or reduce something from the sketches.”
Hetrick applied an event he had observed while in the Navy to the design of the air bag. He was repairing a torpedo(鱼雷) which had a cloth covering. When the compressed（压缩的） air that was in the torpedo was let out, the covering was suddenly filled with air and was shot to the ceiling.
With this knowledge, he developed his design until he was able to obtain a patent on the invention on August 5, 1952. The idea was similar to the air bag designs of today. Compressed air is stored in a container and when a traffic accident occurs and the car slows down at a rapid enough rate, the air will be released into the air bag. The idea was ingenious, but Hetrick’s air bag never would have functioned properly. It was really a breakthrough, but it would require years and years of designing and testing by some top car designers before it could be used.
【小题1】The car accident Hetrick was involved in ________.

A．damaged his car	B．happened in 1948
C．was caused by a deer	D．caused no harm to his family

【小题2】Hetrick’s experience in the Navy________.

A．turned out to be dangerous	B．was helpful to his invention
C．involved designing torpedoes	D．inspired him to design an air bag

【小题3】The underlined word “ingenious” in the last paragraph is closest in meaning to _______.

【小题4】What do we know about the air bag Hetrick designed?

A．It came into use in the 1950s.	B．It performed perfectly in car accidents.
C．It prepared the way for air bags nowadays.	D．It took Hetrick about two months to develop it.

【小题5】The text is mainly about ____.

A．the great inventor Hetrick	B．The invention of air bags
C．a terrible car accident	D．road safety in the 1950s

“In the spring of 1952, my wife, my seven-year-old daughter, Joan, and I were out for a Sunday drive in our 1948 Chrysler Windsor. About three miles outside Newport we were watching for deer jumping across the road. Suddenly, there was a large rock in our path. I hit the brakes and we went into a ditch(壕沟).

“As I applied the brakes, both my wife and I threw our hands up to keep our daughter from hitting the car. There was soft mud in the ditch, so the car wasn’t damaged, and no one was hurt.”

“During the ride home I couldn’t stop thinking about the accident. I asked myself,‘Why couldn’t some object come out to stop you from striking the inside of the car?’As soon as I got home that night I drew some sketches(草图). Each evening for the following two weeks, I’d add or reduce something from the sketches.”

Hetrick applied an event he had observed while in the Navy to the design of the air bag. He was repairing a torpedo(鱼雷) which had a cloth covering. When the compressed（压缩的） air that was in the torpedo was let out, the covering was suddenly filled with air and was shot to the ceiling.

With this knowledge, he developed his design until he was able to obtain a patent on the invention on August 5, 1952. The idea was similar to the air bag designs of today. Compressed air is stored in a container and when a traffic accident occurs and the car slows down at a rapid enough rate, the air will be released into the air bag. The idea was ingenious, but Hetrick’s air bag never would have functioned properly. It was really a breakthrough, but it would require years and years of designing and testing by some top car designers before it could be used.

1.The car accident Hetrick was involved in ________.

A．damaged his car B．happened in 1948

C．was caused by a deer D．caused no harm to his family

2.Hetrick’s experience in the Navy________.

A．turned out to be dangerous B．was helpful to his invention

C．involved designing torpedoes D．inspired him to design an air bag

3.The underlined word “ingenious” in the last paragraph is closest in meaning to _______.

A．creative B．ridiculous C．crazy D．complex

4.What do we know about the air bag Hetrick designed?

A．It came into use in the 1950s. B．It performed perfectly in car accidents.

C．It prepared the way for air bags nowadays. D．It took Hetrick about two months to develop it.

5.The text is mainly about ____.

A．the great inventor Hetrick B．The invention of air bags

C．a terrible car accident D．road safety in the 1950s

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