Research on the human brain has been attracting the attention of more and more scientists in recent years, just like the booming hi-tech industry. One of the latest research topics is how to change the human brain or combine the computer and the human brain, i.e., to transplant a chip into human brain.This idea may make everyone's dream come true.If we compare a human brain to a hard disc, what the scientists are doing is to enlarge the capacity of the hard disc.For the time being, there are some difficulties in such transplant experiments, but scientists never give up.
Experiments were started on animals.In 1996, a transplant experiment performed at the Defense and Military Physiology Research Institute in the U.S.turned a bear into a dolphin.
The dolphin was named Ted, and the bear was named Tallin.Using the most advanced technology, deep and detailed studies were made of the swimming action memory area in Ted's brain by the scientists.They got a lot of useful information.The information was saved into a button-sized chip, which was then transplanted into the action memory area in Tallin's brain.The information saved on the chip was released by means of electric power.
Recently, another memory transplant was performed at the Motor Nerve Research Institute of the University of California.The comprehensive memory transplanted in the experiment included actions, moods, logic, words, images, etc. The experiment involved an entire transplant of the memory area. This was the largest such experiment done so far.
The transplant was performed from a dog named “Genius” to a dog named “Idiot”.“Genius” could understand and follow up to 100 gestures and orders made by its master.It was a real genius.“Idiot” was the younger brother of “Genius”.It had no contact with people at all since its birth.It became an animal with nothing in its brain, without any memory.
The operation was a complete success.When the two dogs woke up, “Idiot” had grasped all the abilities “Genius” possessed; it was good at memorizing and sensible. It could follow every gesture and any command given by its master.But “Genius” gave no response to its master, and in fact did not recognize him at all.
1.The purpose of the experiment is .
A.to combine the computer and the human brain
B.to make bear swim
C.to make some stupid dog turn clever
D.to enlarge the capacity of human brain
2.Which of the following statements is TRUE?
A.The scientists transferred a button-sized chip which useful information in Tallin’s brain.
B.The first comprehensive memory transplant was performed at the Motor Nerve Research University.
C.The second experiment wasn’t an entire transplant of the memory area.
D.The Idiot was an animal with memory before brain experiment
3.What does the underlined word “success” refer to?
A.The two dogs woke up.
B.They were both good at memorizing.
C.The Idiot grasped all the abilities of Genius.
D.The Genius grasped all the abilities of Idiot.
4.According to the text, we can infer .
A.a(chǎn) person can know more after the experiment.
B.a(chǎn) bear can swim after being transferred a chip with related useful information
C.a(chǎn) dog can become clever after entire transplant of the memory area
D.it is really good for animals to have been involved in the transplant experiment
科目:高中英語 來源: 題型:閱讀理解
College libraries are designed primarily for research and study.To explain its use, let us choose a research topic and follow the step-by-step procedure of looking up the material for the paper.
Suppose your assignment is to write a paper on a novel called “The Sun Also Rises” by American writer Hemingway.The first step is to go to the main catalog.Many small drawers on the large wooden cabinets are lined up in alphabetical(字母的) order.Each of the drawers contains hundreds of alphabetical ordered cards.These cards are printed references to all material available in the library.Title cards are cataloged (為…編目錄 ) by the first word of the book title, leaving out the articles like “a”, “an” and “the”.And then you get the cards for the books you need.On the upper left corner of each card is the call number.This is the numerical code that shows where the book is located in the library.The library has open and closed stacks.If your book is on the open stacks, you can go to the open-stack room, and according to the call number find it out by yourself.There are only about 30,000 books on open stacks, while most of the 800,000 books in our library are kept in closed stacks, which are accessible only to teachers and graduate students.
For undergraduates like you, borrowing books from the closed stacks have to be done with the help of our librarian.In that case, you must fill out a call slip(紙條) for the book, showing the call number, author and title.You can get call slips on tables near the catalog cabinets.You show your call slip together with your library card to a librarian at the information desk.He or she will help you find the book out in the closed stacks.
What is the main purpose of this text?
A.To present readers a brief introduction to a college library.
B.To guide readers how to find books needed in a college library.
C.To tell readers how to fill out a call slip in a college library.
D.To show readers where to find books in a college library.
What letter you should look for on the title card for the book “The Old Man and the Sea” by the Hemingway?
A.The letter “t”. B.The letter “h”. C.The letter “s”. D.The letter “o”.
How are books arranged and shelved in the library?
A.By call numbers. B.By call slips of authors’ names.
C.In alphabetical order. D.By the first word of book title.
Suppose you are an undergraduate and you want to borrow a book from the closed stacks, which is the correct order to do it?
a.go to the main catalog b.show your call slip and library card
c.find out the call number d.fill out a call slip
e.get the cards for the books
A.a(chǎn)-b-e-d-c B.a(chǎn)-e-c-d-b
C.b-a-c-d-e D.b-c-a-e-d
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科目:高中英語 來源: 題型:閱讀理解
A chemical important of brain development may play a role in explaining why some people are genetically (由基因決定地) likely to suffer from anxiety and could lead to new treatments, U.S. researchers said.
They said highly anxious rats which were kept had very low levels of a brain chemical called fibroblast growth factor 2 or FGF2, compared with rats that were more relaxed. But when they improved the anxious rats' living conditions—giving them new toys to explore and a bigger cage to live in—levels of this brain chemical increased and they became less anxious.
“The levels of this brain chemical increased in response to the experiences that the rats were exposed to. It also decreased their anxiety.”Javier Perez of the University o f Michigan said in a telephone interview. “It made them behave the same way as the rats that were relaxed,”he said.
In a former study of people who were severely depressed before they died, the team found the gene that makes FGF2 was producing very low levels of the growth factor, which is known primarily for organizing the brain during development and repairing it after injury.
Perez thinks the brain chemical may be a marker for genetic vulnerability (脆弱性) to anxiety and depression. But it can also respond to changes in the environment in a positive way, possibly by preserving new brain cells.
While both the calm and anxious rats produced the same number of new brain cells, these cells were less likely to survive in the high-anxiety rats, the team found. Giving the rats better living conditions or injecting them with FGF2 helped improve cell survival.
“This discovery may pave the way for new, more specific treatments for anxiety that will not be based on sedation(藥物鎮(zhèn)靜), but will instead fight the real cause of the disease,” Dr. Pier Vincenzo Piazza from France said in a statement.
6. We know from the passage that with the levels of FGF2 decreasing, the rats will ________.
A. die of anxiety soon B. suffer from a headache
C. become more relaxed D. become more anxious
7. What's the better way to increase the levels of FGF2?
A. Introducing more companions to the anxious rats.
B. Improving the living conditions of the anxious rats.
C. Injecting the anxious rats with some special medicine.
D. Giving the anxious rats more time to relax.
8. The underlined word “it” in Paragraph 4 refers to ________.
A. the team B. the gene
C. the growth factor D. the brain
9. What's the main influence of the new discovery?
A. Doctors won't use any medicine to cure anxiety.
B. Doctors may treat anxiety more efficiently.
C. Doctors will find the real cause of anxiety.
D. Doctors may find new medicine for anxiety.
10. Which of the following would be the most suitable title for the passage?
A. Anxious rats and relaxed rats
B. Anxiety—a serious mental disease
C. Scientific research into the brain is important
D. Brain chemical may play key role in anxiety
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科目:高中英語 來源:2013屆江蘇省興化市板橋高級中學(xué)高三9月雙休檢測英語試卷(帶解析) 題型:填空題
單詞拼寫(共10小題,每題0.5分,共5分)
【小題1】Sport and ____________ (娛樂) have always been part of university life.
【小題2】Young people are not ____________(滿足) to stand and look at works of art; they want art they can participate in.
【小題3】Is English a ____________ (必修) subject in your school?
【小題4】I had a holiday in America for a ____________ (兩周) last year.
【小題5】Both poets drew their ____________ (靈感) from the countryside.
【小題6】Everyone has his own ____________ (弱點).
【小題7】We are so disappointed that he gave us an ____________ (模棱兩可的) answer.
【小題8】As a result, the government has strengthened r__________________ protecting these historic sites.
【小題9】She offered me practical a____________ with my research.
【小題10】I’ve met her on several o_______ recently.
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科目:高中英語 來源:2010年遼寧省高一下學(xué)期第一次月考英語 題型:單詞拼寫
單詞拼寫(共10小題,每小題1分,滿分10分)
1.Premier Wen Jiabao s__________ on Sunday that the final ends of the nation's economic growth is to
improve people's well-being
2.Chek Lap Kok Airport in Hong Kong is designed to a_____________ 80 million passengers a year.
3.It was impossible to r______________ the ink from the tablecloth.
4.That plane crash o_______________ only minutes after take-off.
5.The invitation was based on her research interests and p______________ experience in the field.
6. There wasn't enough e____________ to prove his guilt
7. No.1 middle school is s______________ in the north of Handan city.
8. It’s time that the government took m____________to reduce carbon dioxide emission.
9. He c_________________ bitterly that he had been unfairly treated.
10.APEC is the most i____________ forum(論壇) in the Asian-Pacific region and one of the most dynamic organizations for economic cooperation in the world.
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科目:高中英語 來源:2010年山西省高一上學(xué)期10月月考英語卷 題型:單詞拼寫
根據(jù)句意和所給首字母補全單詞。(共15小題;每小題1分,滿分15分)
1.Mr Li is very kind and e___________.He always helps others when they are in trouble.
2.The job requires a good ___________(領(lǐng)悟)of Western culture.
3.You’d better give me a full _________(描述)of this plan.
4.It’s bad __________(行為)for a man to smoke in the public places where smoking is not allowed.
5.They were busy o__________a meeting for the company.
6.Jane is always very n________before an exam and can’t eat anything.
7.Even in his late years of life,the old man is still doing _________(科學(xué)的)research.
8.That school is very famous for its high standards of _________(紀律).
9.Thank you very much.I really a_________your help.
10.The thief a______that he had stolen the money.
11.Seeing the teacher coming,Kate can’t help______(避免)talking to him.
12.A student, though i_______, must study hard.
13.Now it is very easy and quick to get i________from the Internet with just a computer.
14.With the support and_________(鼓勵)from his friends,the young man was ready to try something new.
15.Before the final examination,we should do a lot of________(復(fù)習(xí)).
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