游客
题文

Recently, tests have proved that Beethoven died from lead(铅)poisoning. Bill Walsh directed the Beethoven Research Project. Mr Walsh and his team examined pieces of bone belonging to Beethoven. They found a large amount of lead in the bone pieces. They said the lead levels were equal to those found in pieces of his hair in earlier studies of other scientists.
Genetic tests proved the bone pieces and hair came from Beethoven. The researchers also examined bone fragments(碎片 from someone else who lived during the same period. Both were from the top of the skull. The fragments from Beethoven had more lead than those from the other person. Their study didn’t find measurable levels of cadmium (镉) or mercury (汞), which scientists used to consider were the causes of his health problems.
Beethoven was sick for much of his life. He experienced strong stomach pains, a sign of lead poisoning, and a change of personality when he was around 20. He also got angry easily, and suffered from depression and hearing loss. His health problems became worse as Beethoven grew older.
Walsh said the lead levels found in Beethoven’s skull(颅骨) suggested the metal might have been present in his body for many years. He said although there had been recognized cases of deafness caused by lead poisoning, there was no strong evidence to suggest that lead poisoning was the cause of Beethoven’s deafness.
Ludwig van Beethoven visited many doctors to find a cure for his health problems. In a letter he wrote to a friend, he asked researchers to examine his body after he died so that other people would not have to suffer as he did.
During the research, Walsh and his team didn’t ______.

A.examine the bone pieces of Beethoven
B.examine the bone pieces of another person
C.examine the lead levels of Beethoven’s hair
D.measure the cadmium or mercury in Beethoven’s bones

From the passage, we can learn that ___________.

A.this is the first research into the cause of Beethoven’s death
B.any amount of lead will do great harm to people’s health
C.more lead was found in Beethoven’s bones than in his hair
D.scientists used to think that Beethoven’s death was caused by other metals instead of lead

In which section(版)of the newspaper might you read this report?

A.Health. B.Technology C.Entertainment. D.Culture.

What is the best title of the passage?

A.A surprising discovery about Beethoven.
B.Beethoven died from lead poisoning.
C.Lead — a killer metal for human beings.
D.New examination of Beethoven’s body.
科目 英语   题型 阅读理解   难度 较易
登录免费查看答案和解析
相关试题

In a world with limited land, water and other natural resources, the harm from the traditional business model is on the rise. Actually, the past decade has seen more and more forests disappearing and the globe becoming increasingly warm. People now realize that this unhealthy situation must be changed, and that we must be able to develop in sustainable ways. That means growth with low carbon or development of sustainable products. In other words, we should keep the healthy while using its supply of natural resources.
Today, sustainable development is a popular trend in many countries. According to a recent study, the global market for low-carbon energy will become three times bigger over the next decade. China, for example, has set its mind on leading that market, hoping to seize chances in the new round of the global energy resolution. It is now trying hard to made full use of wind and solar energy, and is spending a huge amount of money making electric cars and high-speed trains. In addition, we are also seeing great growth in the global markets for sustainable products such as palm oil(棕榈油), which is produced without cutting down valuable rainforest. In recent years the markets for sustainable products have grown more than 50%.
Governments can fully develop the potential of these new markets. First, they can set high targets for reducing carbon emissions(排放) and targets for saving and reusing energy. Besides, stronger arrangement of public resources like forests can also help to speed up the development. Finally, governments can avoid the huge public expenses that are taking us in the wrong direction, and redirecting some of those expenses can accelerate the change from the traditional model to a sustainable one.
The major challenge of this century is to find ways to meet the needs of a growing population within the limits of this single planet. That is no small task, but it offers abundant new chances for sustainable product industries.
The traditional business model is harmful because of all the following EXCEPT that____.

A.it makes the world warmer
B.it consumes natural resources
C.it brings severe damage to future
D.it makes growth hard to continue

What can we infer from Paragraph2?

A.China lacks wind and solar energy.
B.China is the leader of the low-carbon market.
C.High-speed trains are a low-carbon development.
D.Palm oil is made at the cost of valuable forests.

To fully develop the low-carbon markets governments can______.

A.cut public expenses
B.forbid carbon emissions
C.develop public resources
D.encourage energy conservation

We can learn from the last paragraph that businesses have many chances to _______.

A.develop sustainable products
B.explore new natural resources
C.make full use of natural resources
D.deal with the major challenge

What is the main purpose of the passage?

A.To introduce a new business model
B.To compare two business models
C.To predict a change of the global markets
D.To advocate sustainable development

The Winners Club is a bank account specially designed for teenagers. It has been made to help you better manage your money. The Winners Club is a transaction account (交易账户) where you receive a key – card so you can get to your money 24/7 – that's 24 hours a day, 7 days aweek!
It's a club with impressive features for teenagers:
●No account keeping fees!
You're no millionaire so we don't expect you to pay large fees. In fact, there are no account keeping or transaction fees!
●Excellent interest rates!
You want your money to grow. The Winners Club has a good rate of interest which gets even better if you make at least two deposits (储蓄) without taking them out in a month.
●Convenient
Teenagers are busy – we get that. You may never need to come to a bank at all. With the Winners Club you can choose to use handy tellers and to bank from home using the phone and the Internet. You can have money directly deposited into your Winners Club account. This could be your pocket money or your pay from your part – time job!
●Mega magazine included
Along with your regular report, you will receive a FREE magazine full of good ideas to make even more of your money. There are also fantastic offers and competitions only for Winners Club members.
The Winners Club is a great choice for teenagers. And it is so easy to join. Simply fill in an application form. You will have to get permission from your parent or guardian (so we can organize that cool key-card) but it is easy. We can't want to hear from you. It's the best way to choose to be a winner!
The Winners Club is a bank account intended for _________.

A.parents B.teenagers
C.winners D.adults

Which of the following is TRUE about the Winners Club?

A.Special gifts are ready for parents.
B.The bank opens only on work days.
C.Services are convenient for its members.
D.Fees are necessary for the account keeping.

The Winners Club provides magazines which _________.

A.encourage spending
B.are free to all teenagers
C.are full of adventure stories.
D.help to make more of your money

If you want to be a member of the Club, you must _________.

A.be an Internet user
B.be permitted by your parent
C.have a big sum of money
D.be in your twenties

What is the purpose of this text?

A.To set up a club.
B.To provided part – time jobs.
C.To organize key – cards.
D.To introduce a new banking service.

In the fall of 1985, I was a bright-eyed girl heading off to Howard University, aiming at a legal career and dreaming of sitting on a Supreme Court bench somewhere. Twenty-one years later I am still a bright-eyed dreamer and one with quite a different tale to tell.
My grandma, an amazing woman, graduated from college at the age of 65. She was the first in our family to reach that goal. But one year after I started college, she developed cancer. I made the choice to withdraw from college to care for her. It meant that school and my personal dream would have to wait.
Then I got married with another dream: building my family with a combination of adopted and biological children. In 1999, we adopted our first son. To lay eyes on him was fantastic---and very emotional. A year later came our second adopted boy. Then followed son No. 3. In 2003, I gave birth to another boy.
You can imagine how fully occupied I became, raising four boys under the age of 8. Our home was a complete zoo---a joyous zoo. Not surprising, I never did make it back to college full-time. But I never gave up on the dream either. I had only one choice: to find a way. That meant taking as few as one class each semester.
The hardest part was feeling guilty about the time I spent away from the boys. They often wanted me to stay home with them. There certainly were times I wanted to quit, but I knew I should set an example for them to follow through the rest of their lives.
In 2007, I graduated from the University of North Carolina. It took me over 21 years to get my college degree!
I am not special, just single-minded. It always struck me that when you’re looking at a big challenge from the outside it looks huge, but when you’re in the midst of it, it just seems normal. Everything you want won’t arrive in your life on one day. It’s a process. Remember: little steps add up to big dreams.
When the author went to Howard University, her dream was to be __________.

A.a writer B.a teacher
C.a judge D.a doctor

Why did the author quit school in her second year of college?

A.She wanted to study by herself.
B.She fell in love and got married.
C.She suffered from a serious illness.
D.She decided to look after her grandma.

What can we learn about the author from Paragraphs 4 and 5?

A.She was busy yet happy with her family life.
B.She ignored her guilty feeling for her sons.
C.She wanted to remain a full-time housewife.
D.She was too confused to make a correct choice.

What does the author mostly want to tell us in the last paragraph?

A.Failure is the mother of success.
B.Little by little, one goes far.
C.Every coin has two sides.
D.Well begun, half done.

Which of the following can best describe the author?

A.Caring and determined.
B.Honest and responsible.
C.Ambitious and sensitive.
D.Innocent and single-minded.

Since the 1970s, scientists have been searching for ways to link the brain with computers. Brain-computer interface(BCI) technology could help people with disabilities send commands to machines.
Recently, two researchers, Jose Milan and Michele Tavella from the Federal Polytechnic School in Lausanne, Switzerland, demonstrated a small robotic wheelchair directed by a person’s thoughts.
In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right band. He could even talk as he watched the vehicle and guided it with his thoughts.
“Our brain has billions of nerve cells. These send signals through the spinal cord (脊髓)to the muscles to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles,” Tavella says. “Our system allows disabled people to communicate with external world and also to control devices.”
The researchers designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to a computer. The computer interprets the signals and commands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help the computer react to commands from the brain.
Prof. Milan, the team leader, says scientists keep improving the computer software that interprets brain signals and turns them into simple commands. “The practical possibilities that BCI technology offers to disabled people can be grouped in two categories: communication, and controlling devices. One example is this wheelchair.”
He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can benefit from. And the other is to guarantee that they can use the technology over long periods of time.
BCI is a technology that can ________.

A.help to update computer systems
B.link the human brain with computers
C.help the disabled to recover
D.control a person's thoughts

How" did Tavella operate the wheelchair in the laboratory?

A.By controlling his muscles.
B.By talking to the machine.
C.By moving his hand.
D.By using his mind.

Which of the following shows the path of the signals described in Paragraph 5?

A.scalp→computer→cap→wheelchair
B.computer→cap→scalp→wheelchair
C.scalp→cap→computer→wheelchair
D.cap→computer→scalp→wheelchair

The team will test with real patients to ________.

A.make profits from them
B.prove the technology useful to them
C.make them live longer
D.learn about their physical condition

Which of the following would be the best title for the text?

A.Switzerland, the BCI Research Center
B.New Findings About How the Human Brain Works
C.BCI Could Mean More Freedom for the Disabled
D.Robotic Vehicles Could Help to Cure Brain Injuries

Mr. Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it landed upside down in three feet of water. Mr. Johnson took the only escape route—through the boot (行李箱).
Mr. Johnson’s car had finished up in a ditch (沟渠) at Romney Marsin, Kent after skidding on ice and hitting a bank. “Fortunately, the water began to come in only slowly,” Mr. Johnson said, “I couldn’t force the doors because they were jammed against the walls of the ditch and dared not open the windows because I knew water would come flooding in.”
Mr. Johnson, a sweet salesman of Sitting Home, Kent, first tried to attract the attention of other motorists by sounding the horn and hammering on the roof and boot (汽车行李箱). Then he began his struggle to escape.
Later he said, “It was really a half penny that saved my life. It was the only coin I had in my pocket and I used it to unscrew(拧开…的螺丝) the back seat to get into the boot. I hammered desperately with a hammer trying to make someone hear, but no help came.”
It took ten minutes to unscrew the seat, and a further five minutes to clear the sweet samples from the boot. Then Mr. Johnson found a wrench(扳钳) and began to work on the boot lock. Fifteen minutes passed by. “It was the only chance I had. Finally it gave, but as soon as I moved the boot lid, the water and mud poured in. I forced the lid down into the mud and scrambled (move with difficulty) as the car filled up.”
His hands and arms were cut and bruised (擦伤). Mr. Johnson got to Beckett Farm nearby, where he was looked after by the farmer’s wife, Mrs. Lucy Bates. Huddled in a blanket, he said, “The thirty minutes seemed like hours.” Only the tips of the car wheels were visible(can be seen), police said last night. The vehicle had sunk into two feet of mud at the bottom of the ditch.
What is the best title for this newspaper article?

A.The Story of Mr. Johnson, A Sweet Salesman
B.Car Boot Serve As The Best Escape Route
C.Driver Escaped Through Car Boot
D.The Driver Survived A Terrible Car Accident

Which of the following objects is the most important to Mr. Johnson?

A.The hammer. B.The coin.
C.The screw. D.The horn.

“Finally it gave”(Paragraph 5) means that ________.

A.luckily the door was torn away in the end
B.at last the wrench went broken
C.the lock came open after all his efforts
D.the chance was lost at the last minute

It may be inferred from the passage that __________.

A.the ditch was along a quiet country road
B.the accident happened on a rainy cold day
C.Mr. Johnson’s car stood on its boot as it fell down
D.the police helped Mr. Johnson get out of the ditch

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号