Newresearchshowsthatthehealthy

首页 / 高中英语 / 试题详细

更新 2022-09-03
科目英语
题型阅读理解
难度中等
浏览 856

New research shows that the healthy brain may hold memories which we don’t even remember. In The Journal of Neuroscience, experts report that the brain might hold more memories than people realize, but that restoring those memories can be tricky.
Memory Check
First, participants saw a list of 120 real words mixed with 80 nonsense words. Next, they saw another word list and tried to remember which words had been on the first list. Meanwhile, their brains were scanned with functional magnetic resonance(核磁共振) imaging.
While participants reviewed the second word list, their brain scans showed more activity in a certain brain area -- the posterior（后部的） median temporal lobe(脑叶) -- when they saw words that had been on the first word list.
But participants didn’t always remember that they’d seen those words before. Sometimes, they goofed and said they hadn’t seen those words before. In other words, the posterior median temporal lobe was more sensitive to memory than participants’ consciousness, the researchers note.
“Album”of Memories
Another part of the median temporal lobe also attracted the scientists’ attention. The anterior（前面的）median temporal lobe showed more activity when participants thought they were seeing a new word, the study shows.
So, why did participants sometimes mess up their memory recall? It might be that two parts of their brain -- the posterior and anterior median temporal lobes -- might be dueling(决斗) for the upper hand in deciding what actually happened in the past, the study notes.
In other words, memories might have a photo album in the brain, but sometimes we forget what’s on all of the photo album’s pages.
A person sometimes has difficulty recalling because .

A．he is unconscious when he gets his memories

B．he forgets what is on the pages of the photo album

C．there are two parts in his brain dueling for the upper advantage

D．the anterior median temporal lobe is more active than the posterior

According to the passage the researchers are .

A．studying how a person remembers things

B．studying a magazine The Journal of Neuroscience

C．examining posterior and anterior median temporal lobes

D．doing experiments to find out what disturbs a person’s memory

What did the experts discover when the participants saw the words on the first word list appear on the second word list?

A．The instrument worked faster.

B．The participants were more conscious.

C．The posterior median temporal lobe was more active.

D．The anterior median temporal lobe was more active.

The underlined wordgoofedin the fourth paragraph means .

A．made a mess of	B．made an answer for
C．made out of	D．made the best of

登录免费查看答案和解析

相关试题

.
Parenting has never been an easy job，but mothers and fathers today face challenges in raising their children that their own parents may never have had to deal with
While children have always been particular eaters，for example，parents today are trying to supply healthful food in a world full ofchicken nuggets，processed snacks and soft drinks．Bike riding and hopscotch have given way to video games and text messaging．And working parents have to cope with all things around day care，jobs and family．
At the same time，a large amount of health information on the Intemet and elsewhere has introduced a higher level of stress for parents．Web sites provide supplemants(补品)that increase a child’s brain health while news organizations report on the latest scare from baby bottles or too much television．
All of this makes raising a healthy child overwhelming．But it doesn’t have to be．
This Well guide offers small steps and simple ways to improve a child’s well-being in four
areas—nutrition，development，playtime and safety Inside，there’s advice from experts on how to raise a healthy，active youngster；tips on diet and behavior，help for problems like insomnia，and the latest thinking on day care，discipline and other topics．It’s all designed to help kids stay well every day．
45．According to the author,what is most likely to be found in today’s homes?
A．Hopscotch     B．Healthful food．  C．Bike riding． D Brain supplements
46．What does“Well guide'’in the last paragraph probably refer to?
A．A programon how to deal with daily affairs
B A game on how to make kids clever．
C．A book on how to raise a child．
D A site on how to reduce work stress
47．From the 1st paragraphinthe passage,we can infer that_______
A．today’s parents are too busy to raise their own children
B today’s parents should seek advice from their own parents
C it was much easier to raise children in the past
D．parents have more concems in raising children today
48．The underlined word in Paragraph 4 can be replaced by          ．
A．relaxing       B．delighting      C．stressful     D puzzling

题型：未知
难度：未知

收藏答案/解析

.
第二部分：阅读理解(第一节20小题，第二节5小题；每小题2分，满分50分)
第一节：阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题纸上将该选项标号涂黑。
They say that before long，we will be able to receive more than 500 television networks on cable or by satellite .Some people think that it's ridiculous to have that many channels．Their usual criticism goes something like this：
“I already get more channels on my TV than I have time to watch．No one needs to see that much TV．There’s not enough time in the day to watch all that!”They also state that most of what’s on television now isn’t worth watching in the first place．
I think they’re missing the point．If the local library wanted to add another 5,000books,would
we say“That’s silly,we’ll never have time to read all those books．”?The point is that we would
have more choices．
I don’t believe that most people should watch more television And if we had 500 or even 1,000 channels to choose from，we wouldn’t have to spend more time watching the tube．We would．however,have a better selection of programs to choose from．That means that the quality of our viewing time would improve．
I，for one，say that the more channels we can access，the better,Give me more choices! If they’re not worth my time，I’ll just hit the“off”button．
41．The author’s main purpose of writing this article is to tell readers
A．his opinion about having more channels on TV
B．some people think it unnecessary to have so many TV channels
C．we will soon have more channels on TV
D．how to choose proper programs on TV
42．According to the passage，some people dislike having more channels because _______．
A．they already get enough channels on their TV
B．it's a waste of time to watch TV programs
C．some of the TV programs are poor in quality
D．they can’t afford enough time to watch so many programs
43．According to the author having more channels means_______．
A．having more good programs
B．having more choices
C．having more time to watch TV
D．getting more information over TV
44．Which of the following statements is NOT true according to the passage?
A People usually don’t have enough time to see all the programs on TV．
B．More and more television networks are being set up
C．People will think it silly if the local library adds another 5．000 books．
D If we have more channels，we can improve the quality of our viewing time．

题型：未知
难度：未知

收藏答案/解析

.
Research on the human brain has been attracting 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 a 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 have 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 available, deep and detailed images were made of the memory area in Ted’s brain containing information about swimming by the scientists. They obtained a series of useful information, the signals transferred by the nervous system. Such 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 comprehensive 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 making a transfer 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 in memorizing. “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.
47. 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
48. Which of the following statements is TRUE?
A. The scientists transferred a button-sized chip with 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
49. 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.
50. According to the text, we can infer ________.
A. a person can know more after the experiment
B. a bear can swim after being transferred a chip with related useful information
C. a 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

题型：未知
难度：未知

收藏答案/解析

.
CAREER OPPORTUNITES
1. Full Time Secretary Position Available: Applicants should have at least 2 year’s experience and be able to type 60 words a minute. No computer skills required. Apply in person at United Business Ltd, 17 Browning Street, Leeds.
2. Part-time Job: We require three part-time shop assistants to work during the evening. No experience required, applicants should be between 18 and 26 years old. Call 0115-765643 for more information.
3. Computer Trained Secretaries: Do you have experience working with computers? If you want to know more about us, call 0457 - 896754.
4. Teaching Assistants Needed: Hania’s Playshool needs 2 young teaching assistants to help with classes from 9 to 3 pm. Applicants should have references. For more information please visit www. Haniaplayschool. co. uk.
5. Weekend Work Available: We are looking for retired adults who would like to work part time on weekends for Rubberlast Group Ltd. Duties include answering the telephone and giving customers’ information. For more information call us at 0113-6741326.
6. University Positions Open: The University of Bristol is looking for 4 teaching assistants to help with homework correction. Applicants should have a degree in one of the following: Political Science, English, Economics or History. Please call the University of Bristol for more information.
7. Home Delivery Representative: We are looking for someone who has excellent customer care, communication skills, a sales background with at least one year’s experience and is a good team player with creative ideas. In return we offer a starting salary of $ 20,000 and 25 days paid holiday per year. For more information please call Direct Delivery Team of Yorkshire Post on 0113-2388318.
44. Which position is most suitable for a retired person?
A. Part-time Shop Assistant.
B. Teaching Assistant in Hania’s Playschool.
C. Weekend Work in Rubberlast Group Ltd.
D. Teaching Assistant in the University of Bristol.
45. If you have good computer skills and recently graduated from university (English degree), which jobs can you apply for?
A. Job 1, 2 and 7. B. Job 3, 4 and 6. C. Job 4, 6 and 7. D. Job 2, 3 and 5.
46. Which is the only position that has a formal educational requirement?
A. Full Time Secretary at United Business Ltd.
B. Home Delivery Representative for Yorkshire Post.
C. Teaching Assistant at Hania’s Playschool.
D. University Positions at the University of Bristol.

题型：未知
难度：未知

收藏答案/解析

.
Beijing plans to build huge free or low-cost parking lots beyond the Fourth and Fifth Ring Roads to encourage more car owners to take buses or subways to the downtown area.
The plan is just one of the many measures the city plans to take to reduce its traffic jams. Low or no parking fees would be used as economic leverage（杠杆作用）to reduce growing parking demands from urban areas.
Car owners living in the suburbs will be encouraged to park their cars beyond the Fourth and Fifth Ring Roads and take buses or subways to the downtown area. Statistics show that nearly one quarter of the city’s traffic flow is concentrated in the 62-square-kilometre downtown area within the Second Ring Road, which makes up only 12 percent of the city’s total area.
The Beijing Traffic Management Bureau receives between 400 and 500 calls reporting traffic jams every day and more than 90 percent of the roads are filled to capacity during rush hour every morning and evening. Part of the problem is the lack of easy links between bus routes, subways and cars.
According to the communication commission, half of the city’s investment in transportation will go towards public transit（公共交通）construction in the next few years, making a jump from the current only 20 percent. Moreover, Beijing plans to change its layout（布局）by building new city centers, such as at Yizhuang, Tongzhou, Shunyi and Changping, in a bid to reduce the traffic flow to the downtown.
The current layout of Beijing-expanded ring roads around the same center of the Forbidden City, is seen as the root cause of the endless traffic jams. The downtown area is crowded with three business centers and one financial centre, as well as nearly 400 government organs and institutions.
Traffic experts say building more urban centers around Beijing may reduce the number of residents living in the suburbs and traveling long distances to work downtown every day, thus reducing traffic flow.
40. In the coming years, if a man beyond the Fourth Ring Road goes to work in the
downtown of Beijing, he is encouraged to _______.
A. take buses or subways
B. take a taxi
C. drive the car quickly
D. park his car in a place which asks for no fees
41. According to this passage, when more and more people drive to work in rush hour in Beijing, it is likely to ________.
A. save time                                             B. cause traffic jams
C. cause traffic accidents                            D. reduce air pollution
42. The aim in building new city centers is to ________.
A. make it convenient for people to go shopping
B. develop its local resources
C. reduce the traffic flow to the downtown
D. solve the problem of more laid-off workers
43. The passage suggests the author _________.
A. is tired of driving to work
B. finds it costs less to take subways than to drive
C. is for the plan to reduce Beijing’s traffic congestion（拥挤）
D. has benefited a lot by driving to the downtown every day

题型：未知
难度：未知

收藏答案/解析