Mary是—位美國中學(xué)音樂老師,一直喜歡中國音樂。她下個月要為在暑假到中國游學(xué)音樂的中學(xué)生作—個關(guān)于中國古典音樂的講座,但她在短時間內(nèi)無法找到足夠的資料,于是就給她的中國網(wǎng)友李華發(fā)郵件求助。請你以Mary的名義,用英語給李華寫一封郵件。
要求:
1.詞數(shù):l00詞左右;
2.文中不能出現(xiàn)自己的姓名和所在學(xué)校的名稱;
3.可適當(dāng)增加細(xì)節(jié),以使行文連貫;
4.參考詞匯:古典:classical。
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科目:高中英語 來源: 題型:閱讀理解
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科目:高中英語 來源: 題型:閱讀理解
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科目:高中英語 來源:黑龍江省哈爾濱市2016-2017學(xué)年高二下學(xué)期期中考試英語試卷 題型:閱讀理解
Since the 1970s, scientists have been searching for ways to link the brain with computers. Brain-computer interface (界面) (BCI) technology could help people with disabilities send commands to machines.
Recently, two researchers, Jose Milan and Michele Tavella from the Federal Polytechnic schooling Lausanne, Switzerland, demonstrated(展示)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 hand. 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(頭皮) 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.
1.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
2.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.
3.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
4.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
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科目:高中英語 來源:廣西省2017屆高三下學(xué)期期中考試英語試卷 題型:七選五
Every time we get behind the wheel of a car, we pt our lives and the lives of others at risk. Self-driving cars are designed to reduce those risks by letting technology control our vehicles.
Accident rates for self-driving cars have been much lower than the rate, for human-driven cars. 1.
As humans, we can make moral choices in avoiding accidents. To avoid hitting a child, for example, human drivers might sharply turn a car away from the child even if others may be injured. 2. Researchers studied this issue. They have developed the Moral Machine website to help explore the choices self-driving cars should make.
3. . You are shown two possible traffic situations and you choose between them. An accident will take place. You choose how many living beings would be hurt or killed.
In one situation there may be a female doctor, a child, two dogs and a homeless person who would be killed. In the other situation, you might have two babies and a cat who would be killed. 4.
The Moral Machine website has many situations and many possible outcomes. When you click on the situation of your choice, it will be highlighted. 5. At the end of the situation, you are shown the results, based on the choices you made. The results show which character you were most likely to save and which character you were most likely to have die.
A. Who should those victims be?
B. Then the next situation appears.
C. You choose who lives and who dies.
D. You can use the Moral Machine to be the judge.
E. But what moral choices can self-driving cars make?
F. The Moral Machine website lets you choose how you would react in a collision.
G. Google’s self-driving car has had only 13 collisions after traveling 1.8 million miles.
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科目:高中英語 來源:四川省內(nèi)江市2017屆高三第五次模擬考試英語試卷 題型:閱讀理解
B vitamins(維生素)may offer some protection against the effect of air pollution,a new study suggests.
The scientists say the effect is real but stress the limitations of their work.Follow-up studies are urgently needed, they say,in heavily polluted cities like Mexico.
According to the World Health Organization (WHO),over 90% of the world's population live in heavily-polluted areas.The one of the pollutants that is considered the most dangerous is very fine particulate matter, referred to as PM2.5.At around 1/30 the width of a human hair,PM2.5 can go deep into the human lung and contribute to lung and heart health problems in the young and old.
Scientists have long suspected that PM2.5 causes what are termed epigenetic(表觀遺傳)changes in our cells that can damage our health.Now in this new human trial,an international team of scientists wanted to see if exposure to concentrations of PM2.5 could be mitigated by daily B vitamins.
Ten volunteers were tested initially exposed to clean air and their basic responses were measured.The same volunteers were later tested with large doses(劑量)of B vitamins while exposed to air containing high levels of PM2.5.The researchers found that a four-week B vitamin intake limited the PM2.5 effect by between 28-76% at ten gene locations.They found a similar reduction in effect on the mitochondrial DNA,the parts of cells that produce energy.
However,the researchers caution that their study,while observing a real effect,has limitations.As well as the small number of participants,there was little information on the size of the B vitamin dose that caused the response.
1.What is the main idea of the text?
A. B vitamins may fight against PM2.5.
B. PM2.5 can lead to epigenetic changes.
C. Further studies should be done on PM2.5.
D. Exposure to PM2.5 is more and more serious.
2.Which can replace the underlined word "mitigated" in Paragraph 4?
A. measured B. ignored
C. reduced D. observed
3.How many limitations does the text mention about the new study?
A. 2. B. 3.
C. 4. D. 5.
4.How does the writer of the text like the new study?
A. He believes it deeply. B. He criticizes it strongly.
C. He thinks it needs testing again. D. He shows no opinion about it.
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科目:高中英語 來源:湖南省長沙市2016-2017學(xué)年高一下學(xué)期期中考試英語試卷 題型:短文填空
Yesterday I came across an interesting new book,1.I would like to recommend here. It is 2.Adventure story. The title is Voyage to an Amazing Kingdom. The publisher said that the novel 3.(write) by a 17-year-old boy. The publisher also said that readers would be amazed by the writer’s unique way of thinking and skilful writing. According 4.The publisher, readers do seem to be interested in this new novel. One reader said that he 5.(read) the book twice that week and that he would never forget the fantastic story.6.Reader said that she had bought another two copies that afternoon and that she 7.(give) those books to8.(she) friends later. I believe Voyage to an Amazing Kingdom would be a good choice for senior high students.9.The writer is approximately the same age as our students, I think that they will understand him and his book 10.(easy).
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科目:高中英語 來源: 題型:書面表達(dá)
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