Sincethe1970s，scientistshavebe

更新 2022-09-03
科目英语
题型阅读理解
难度中等
浏览 494

Since the 1970s，scientists have been searching for ways to link the brain with computers. Braincomputer interface (BCI) technology could help people with disabilities send commands to machines.
Recently，two researchers, Jose Millan and Michele Tavella from the Federal Polytechnic School in 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 thougts.
“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.Millan，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.
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

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

登录免费查看答案和解析

相关试题

E
New research at Yale University has provided the strongest evidence that humans are evolving（进化）- and suggests that women of the future will be shorter, heavier, and healthier, and will have children for longer.
As medicine has allowed people who would previously have died young to live to childbearing age and beyond, many have assumed that natural selection no longer works on our species. But Prof Stephen Stearns, the evolutionary biologist at Yale University behind the study, says: "That's just plain false." While survival to reproductive age（生育年龄） is no longer such a barrier（障碍） for humans, other evolutionary pressures – including sexual selection and reproductive fitness – are still working away in full force. If the trends the research detected are representative and continue for another 10 generations, Prof Stearns says that the average woman in 2409AD will be 2cm shorter and 1kg heavier, will bear her first child five months earlier.
Prof Stearns and his team studied the medical histories of 14,000 residents of the Massachusetts town of Framingham, using medical data from a study going back to 1948 and spanning three generations. It looked at 2,238 women past reproductive age – so that they had had all the children they were going to – and tested their height, weight, cholesterol（胆固醇）, blood pressure, and other traits, to see if there was a correlation with the number of children they had borne. It found that shorter, heavier women had more children than lighter, taller ones. Women with lower blood pressure and cholesterol were also more likely to have large families. Women who gave birth early or had a late menopause were likely to have more children as well. More importantly, however, these traits were then passed on to their daughters, who also, on average, had more children.
The study has not determined why these factors are linked to reproductive success, but it is likely that they indicate genetic, rather than environmental, effects. Prof Stearns’ team controlled for other factors, including social and cultural change.
Research suggesting humans are evolving has been carried out before, but this is believed to be the first that directly compares reproductive success of individuals with physiological changes（生理变化）.
72. What is the main idea of the passage?
A. Natural selection no longer works on our species, especially the woman.
B. Woman of the future will be shorter, heavier, and healthier, and will have children for longer
C. Some genetic, rather than environmental effects has more influence on the evolvement of the humans.
D. Evolutionary pressures are still working in full force on the evolvement of the humans.
73. Which of the following statements is False about the women’s evolvement according to the research?
A. women will shorter
B. women will be fatter
C. The time for the women to have baby will be longer
D. women will be cleverer
74. Which factor is the most promising related to reproductive success?
A. Genetic B. Social C. Environmental D. Cultural
75. This passage may most likely be taken from .
A. a geography magazine
B. a medicine and technology research journal
C. a daily newspaper
D. an entertainment book

题型：未知
难度：未知

收藏答案/解析

D
American Watersports
Tuesday-Saturday
Located on the beach of the Sea Gardens Beach Resort, there are fun things to rent for the whole family. They offer rentals for kayaks, jetskis, and even parasails! Enjoy the water upclose or from a bird’s eye view! No matter what activity you’re enjoying, be sure to protect yourself and your family from the sun’s powerful rays and apply plenty of sun block!
15th Street Boat Company
Monday-Saturday
15th Street Boat Company offers rental boats of all kinds. They’re sure to have what you are looking for, whether it’s a small boat for a quick and simple outing or a luxurious boat with comfortable seats with a stereo（立体声）and high tech navigation（导航）. You can rent a boat for half a day, a couple days, or even weeks at a time. If you want it, they’ve got it. It’s fun for everyone!
Coconut’s Watersports
9a.m.-5p.m. Monday through Sunday
Coconut’s Water sports is open 7days a week for your convenience and offers tons of water fun for the whole family. Jet ski activities last 30 minutes or 1hour and can make stops along the way. You must be at least 14years of age to ride alone and can be as young as 3 to ride along with an adult. Everybody is required to wear a life jacket and a license is required to operate the jet ski. Bathing suits and shorts are recommended.
Jet Ski Tours of Miami
Thursday- Sunday 10 a.m.-7p.m
Jet Ski Tours of Miami includes onsite parking, indoor restrooms, lockers, and life jackets for participants. You may choose a one or two hour tour and each jet ski can hold up to 3 people. You must be at least 18 years old in order to ride. As long as you are accompanied by an adult, there is no age limitation for any passenger. There is a restaurant nearby to eat at. The tour visits 6 different islands and passes by Bayside and Hard Rock. You may even catch a glimpse of dolphins playing or a manatee resting in these fabulous Florida waters.
68. What activity is convenient for the visitors to have lunch?
A. Jet Ski Tours of Miami           B. Coconut’s Watersports
C. 15th Street Boat Company        D. American Watersports
69. To satisfy your son’s curiosity about marine animals, you_________.
A. will rent a boat to ride with him
B. prefer a high-living boat with comfortable seats with a stereo
C. would like to prefer American Watersports to Florida waters
D. can choose the tour to Bayside and Hard Rock
70. If you like to sail a boat, you can_________.
A. go to the Sea Gardens Beach Resort     B. visit 15th Street Boat Company
C. choose Jet Ski Tours of Miami          D. go to Coconut’s Watersports
71. To ride alone in the jet ski activities, _________.
A. you have to be at least 14 years old     B. you can choose to wear a life jacket or not
C. you must be over 18 years old         D. you have to be with parents

题型：未知
难度：未知

收藏答案/解析

C
A blow-fly was looking for an ideal place like rotting meat to lay her eggs so that when her little babies were born, they could feed on the meat.
As she turned a corner in the grassland, she smelt something that smells like rotten meat in the air! With a great joy she landed on it and laid her eggs. She was happy that her children would have enough food to eat.
But the fly did not know she had made a great mistake. What she had sat upon was not meat but a flower, which smells badly. It is called a carrion flower. So, when the blow-fly’s eggs hatched and the little maggots（蛆）came out, they had nothing to eat. They died of starvation.
The carrion flower is one of the many flowers which send out dirty smells to attract flies. The Rafflesia stinks like rotting meat, while the tropical Lords and Ladies flower gives out a smell like rotting fish.
They do it for a special reason. These plants cannot move from their place. But it is important for the male cell of one plant to get in touch with the female cell of another plant. Once that is done, the seed of the plant will bloom and give birth to another plant.
The plant uses its stink to attract flies. As soon as the blow-fly sits on the follower, it is captured by the flower with strong hair. When the hair falls, the fly is free to fly- but it takes some pollen（花粉） with it. And goes and sits on another plant. The male cell of one plant meets the female cell of the other. The seed gets new life.
64. Why did the fly land on something smelly?
A. She was too careless before her bearing.       B. She liked the particular smell very much
C. She hoped to find some food for her babies.    D. She couldn’t find a better place for delivery.
65. The little maggots finally died because_________.
A. they were born too weak             B. they lacked food available
C. carrion flower were poisonous         D. their mother didn’t take care of them
66. Flowers like carrion flower and Rafflesia naturally smell terrible so that_________.
A. they need insects to spread their pollen     B. they succeed in producing more seeds
C. their seeds can be carried to other places    D. they can manage to absorb more nutrients
67. What is the best title of the text?
A. Dirty Tricks        B. Smelly Plants   C. A strange Flower   D. Secrets of Nature.

题型：未知
难度：未知

收藏答案/解析

B
The resounding film Avatar has been very popular in the UK and around the world, becoming the fastest film ever to earn $1bn(7bn yuan) in ticket sales.
But as well as being an entertaining feast for the eyes, the sci-fi epic（叙事诗）also introduces the audience to a brand new language invented especially for the film.
The movie is set on an alien planet called Pandora which is inhabited by many strange species. The most humanoid of the planet’s inhabitants are the Na’vi, and it is the struggle between the Na’vi and human invader that forms the main story of the film.
The film has been released in 2D and 3D versions.
In order to add a sense of reality to his vision of an alien race the film’s director James Cameron asked a professor of language form the University of Southern California to invent a language for the Na’vi.
Professor Paul Frommer worked with James Cameron for four years to build upon the original 30 words or so that the director had already come up with for the language.
According to Professor Frommer, the most important aspect of the Na’ vi language was that it could be pronounced.
“This is an alien language but obviously it has to be spoken by human actors,” Professor Frommer told the BBC, “it has to be sounds that human beings are comfortable producing.”
The language currently has around 1,000 words but Professor Frommer hopes to expand it in possible sequels（续集）to the film and in video games.
The professor hopes that one day his creation will have a high level of the Klingon alien language from the Star Trek films.
“There’s a translation of Hamlet into Klingon,” says Professor Frommer.
“If anything happened like this with Na’vi I’d be delight.”
60. The underlined word “resounding” in Paragraph 1 mean_________.
A. later B. scientific C. hit D. surprising
61. Which of the following is Right according to the passage?
A. A kind of new language was invented especially for the film
B. The film Avatar is as good as a film as the Star Trek
C. The creation in Alien Language is different from that in human beings.
D. Avatar is one of an excellent films invented by Pandora.
62. The most challenging part in the creation of the language is_________.
A. that Professor Frommer needs to create 1,000 words for the film Avatar by himself.
B. that the language is based on that of the Alien planet called Pandora
C. that James Cameron introduces a new style of language to the audience
D. that an Alien language is created to be spoken by human beings.
63. We can infer from the passage that_________.
A. the film Avatar has been released in 2D and 3D versions.
B. the most important aspect of the Na’vi language was that it could be pronounced.
C. Professor Paul Frommer believe his language creation in the film Avatar is very successful.
D. Professor Paul Frommer worked with James Cameron for four years for a sense of reality of the film.

题型：未知
难度：未知

收藏答案/解析

第三部分阅读理解（共20小题；每小题2分，满分40分）
A
As a child growing up, I have very few memories of the times when we gathered as a family to sit down and eat dinner together. I grew up in a home where both of my parents worked. My mother taught in the school, and my father worked during the night at a local chemical plant. There was not much time available for us to sit down to eat dinner together due to my parents’ conflicting（冲突的）work schedules and the afterschool activities in which my sister and I participated.
It wasn’t until I got married and had two children of my own that I began to realize the important of eating dinner together. In my family there are elements that take us away from each other, day in and day out, but as a mother I feel it is my duty to bring us all back together again at the end of the day. In my house, dinner time is a time of thanks. I give thanks for us to share our day, but I am more thankful for the family I share it with. Dinner time is a time for us to share our day, and reflect on our thoughts. Above all it is a time when my family are able to connect with the ones they love.
As I look at the bread basket which sits on my kitchen table, I am reminded of how the basket’s tight weave resembles the tightly woven strands（股）of my family. I believe that through our family dinners, we will not only pass around the meat and potatoes, but we will also pass along virtues that will shape us so that we can forever embrace one another just as the basket embraces the bread.
56. What is the main idea of the passage？
A. It is pleasant to spend time with your family.
B. It is necessary to participate in family activities.
C. It is vital to balance work and family time.
D. It is important to have family dinner together.
57. According to the author, during dinner time           .
A. we should remember the one who prepares the dinner
B. we can learn all sorts of knowledge from other people
C. communication among family members will be improved
D. it is healthy for people to express their opinions
58. What does the underlined word “it” in Paragraph 2 refer to?
A. The family     B. The food   C. Dinner time   D. My house
59. The author concludes the passage by           .
A. making comparisons           B. telling her own story
C. summarizing the main idea      D. presenting facts

题型：未知
难度：未知

收藏答案/解析

推荐套卷

热门套卷