Back in old times, people had little knowledge about the universe and nature. Things we now consider to be common sense were mysteries to our ancestors.
Over the years, major breakthroughs have been made in science and many phenomena have been explained. But still, there are always questions we can't yet answer, and The Guardian has listed some of them.
1. What makes us human?
Just looking at your DNA won't tell you - human DNA is 99 percent identical to that of the chimpanzee and, believe it or not, 50 percent identical to a banana's! A lot of the things we once thought were unique about us - language and tool use, recognizing ourselves in the mirror and so on – have since been seen in other animals. Perhaps it's our culture that makes the difference or maybe our ability to use fire. It's also possible that our capacity (能力) for co-operation and our trading skills are what make us unique.
2. Why do we dream?
Given the fact that we spend around a third of our lives sleeping, shouldn't we know everything about it? Unfortunately, scientists are still searching for a complete explanation of what happens when we sleep and why we dream.
Austrian psychologist Sigmund Freud believed dreams were the expressions of wishes that we can't fulfill in our real lives. Others have wondered whether dreams are just random "noise" coming from a sleeping brain.
3. Could we someday live forever?
Apart from accidents, most people die because of diseases that can be treated and aging. And since many diseases, such as diabetes（糖尿病） and cancer, are diseases of aging, treating aging itself could be the key to extending our lives.
Our knowledge of what causes us to age - and what allows some animals to live longer than others - is expanding rapidly. And though we haven't quite worked out all the details, we've worked out some pieces of the puzzles such as DNA damage and metabolism (新陈代谢), which are all leading to the invention of drugs that can slow down the aging process.
If we're lucky enough to lengthen our lives, we might even get to see the day when all of these questions are answered.The main point of the passage is ______.
| A．to inform people of the knowledge about the universe and nature |
| B．to introduce major breakthroughs that have been made in science |
| C．to present some questions we can't yet answer |
| D．to explain what were once mysteries to our ancestors |
Chimpanzees and bananas are mentioned as examples to prove that ______.
| A．human beings are actually not different from other animals |
| B．animals have completely different DNA from that of plants |
| C．both animals and plants share the same amount of DNA |
| D．DNA alone is not good enough to make humans different |
The underlined word "identical" is closest in meaning to ______.
| A．mysterious | B．unique | C．advanced | D．same |
Which of the following statements is TRUE according to the passage?
| A．What were mysteries to our ancestors are considered to be common sense now. |
| B．Now we know much more about dreams than our ancestors did in the past. |
| C．With the invention of new drugs people can possibly live even longer. |
| D．If all the diseases can be treated people can theoretically live forever. |
Robots that can chat，find misplaced glasses，draw aeroplanes and play with your children are attracting thousands of visitors during an expo in Tokyo as Japan adapts to changes in society．
Robots，such as the sound．sensitive Chapit，answer simple questions and even joke with people to help them fight loneliness and stay alert in old age．
Japan has one of the world’s fastest-aging societies and the government predicts that by 2050，the proportion of people over 65 will reach 40 percent．”Many older people in Japan live alone and have no one to talk to，”said Kazuya Kitamura representative of the expo organizer．“Communication robots accompany people and don’t mind listening to the same stories over and over again．”
Matsumoto’s“Personal Mobility Robot，”equipped with four cameras and a sensor to recognize the user's centre of gravity, is designed to help elderly move around without pressing buttons．using joysticks(操纵杆)or rotating wheels as in traditional wheelchairs．
The robot can also help find misplaced glasses by identifying them with a sensor．
Other robots，such as the award-winning “DiGRO” can support busy parents who have little time to play with their children．The robot can use the Internet to find a simple image and then draw pictures，keeping children company while parents work．
While Chapit，a relatively simple robot，managed to attract a corporate partner many researchers，such as Kiyoshi Matsumoto，a professor at the University of Tokyo，struggle to attract sponsors for more expensive projects．
“We have developed a robot that can assist many people，but we still haven’t found a sponsor,” said Matsumoto，who added that the cost of the machine，if mass-produced，would be comparable to that of a car．”In the current economic environment there are few companies willing to invest in such a costly project，”he said．It can be inferred from the text that_______．
| A．many children lack love from parents |
| B．robots helpful to the old will be in great demand |
| C．robots are the most useful to children |
| D．robots do better than people in healthcare |
It is difficult to find sponsors for robots because______.
| A．Japan is suffering economy depression |
| B．the robots are of poor design |
| C．the production of robots costs a lot |
| D．the future market is worrying |
【改编】What’s the purpose of the passage?
| A．To attract people to visit the new kind of robot |
| B．To find the investment of the robot. |
| C．To persuade people to buy the robot. |
| D．To introduce a new kind of robot. |
The writers of murder stories go to a great deal of trouble to keep us guessing right up to the end. In actual fact, people often behave more strangely in real life than they do in stories.
The following advertisement once appeared in a local newspaper: "An opportunity to earn $250 in a few minutes. A man willing to take chances is wanted for an out-of-the-ordinary job which can be performed only once." A reader found this offer very generous and applied to the advertiser, but being a bit suspicious, he gave a false name. Soon afterwards, he received a reply. Enclosed in the envelope was a typed note instructing him to ring a certain number if he was still interested. He did so and learned on the telephone that the advertiser wanted him "to get rid of somebody" and would discuss it more fully with him the next day. But the man told the police and from then on acted under their instructions.
The police saw the two men met and watched them as they drove away together. In the car the advertiser came to the point at once: he told the man he wanted him to shoot his wife. The reason he gave was that he was suffering from an incurable disease and wanted to live in a warmer country，but his wife objected to this. Giving the man some money，the advertiser told him to buy a gun and warned him to be careful of the dog which，though it would not bite，might attract attention. He also gave him a photograph of his wife so that he would be able to recognize her，After that，the advertiser suggested that the man should "do the job" next morning. Meanwhile，he would prepare his wife by telling her that a young man was going to call. After the murder，they would meet again outside a railway station and the money would be paid as arranged. The second meeting never took place，for the advertiser was arrested shortly afterwards and charged with attempting to persuade someone to murder his wife.What can we infer from paragraph one?
| A．While reading murder stories, we have to guess at the end of the stories. |
| B．While reading murder stories, we have to guess from the beginning to the end. |
| C．People usually behave more strangely in murder stories than in real life. |
| D．It is very easy for writers of murder stories to have readers guessing. |
The underlined word “suspicious” in paragraph two means _________?
| A．doubtful | B．sure |
| C．persuaded | D．unexpected |
Why did the man put an advertisement in a local newspaper?
| A．To have his wife killed because he doubt whether she still loved him. |
| B．To ask someone to buy a gun for him and then he would kill his wife. |
| C．To hire someone to kill his wife because he didn’t love her any more. |
| D．To hire someone to kill himself because he was seriously ill. |
【改编】Where did the advertiser wish the man to shoot his wife?
| A．In the car | B．At a railway station |
| C．In his house | D．The passage didn’t tell. |
From the passage, we can learn that___________.
| A．The advertiser wrote a letter to the reader to ask him to call a number. |
| B．The reader was in great need of money, so he wanted to get the job. |
| C．The dog in the advertiser’s house was very fierce. |
| D．The advertiser was caught by the police right after he met the reader. |
I have a friend named Monty Roberts who owns a horse ranch(养马场). He has let me use his house to put on fund-raising events. The last time I was there he introduced me by saying: “I want to tell you a story. It all goes back to a story about a young man who was the son of an itinerant horse trainer who would go from stable to stable, race track to race track, farm to farm and ranch to ranch, training horses. As a result, the boy’s high school career was continually interrupted. When he was a senior, he was asked to write a paper about what he wanted to be and do when he grew up.
“That night he wrote a seven-page paper describing his goal of someday owning a horse ranch. He wrote about his dream in great detail and he even drew a diagram of a 200-acre ranch, showing the location of all the buildings, the stables and the track. Then he drew a detailed floor plan for a 4,000-square-foot house that would sit on a 200-acre dream ranch.
“He put a great deal of his heart into the project and the next day he handed it in to his teacher. Two days later he received his paper back. On the front page was a large red F with a note that read, ‘See me after class.’
“The boy with the dream went to see the teacher after class and asked, ‘Why did I receive an F?’ The teacher said, ‘This is an unrealistic dream for a young boy like you. You have no money. You come from an itinerant family. You have no resources. Owning a horse ranch requires a lot of money. You have to buy the land. You have to pay for the original breeding stock and later you’ll have to pay large stud fees. There’s no way you could ever do it.’ Then the teacher added, ‘If you will rewrite this paper with a more realistic goal, I will reconsider your grade.’
“The boy went home and thought about it long and hard. He asked his father what he should do. His father said, ‘Look, son, you have to make up your own mind on this. However, I think it is a very important decision for you.’ Finally, after a week, the boy turned in the same paper, making no changes at all. He stated, ‘You can keep the F and I’ll keep my dream.’ ”
Monty then turned to the group present and said, “I tell you this story because you are sitting in my 4,000-square-foot house in the middle of my 200-acre horse ranch. I still have that school paper framed over the fireplace.” He added, “The best part of the story is that two years ago that same schoolteacher brought 30 kids to camp out on my ranch for a week. When the teacher was leaving, he said, ‘Look, Monty, I can tell you this now. When I was your teacher, I was something of a dream stealer. During those years I stole a lot of kids’ dreams. Fortunately you had enough courage not to give up yours.’ ”
“Don’t let anyone steal your dreams. Follow your heart, no matter what,” Monty at last concluded. The teacher asked the boy to rewrite the paper because __________.
| A．the boy was too poor to achieve his dream |
| B．the teacher doubted his chance of success |
| C．the boy was not good enough to achieve his goal |
| D．the teacher looked down on the boy absolutely |
Which of the following could best express the teacher’s feelings when she said the words before leaving the ranch two years ago?
| A．Regretful and proud. | B．Regretful and guilty. |
| C．Honest and sorry. | D．Embarrassed and proud. |
【改编】Monty told the story to say that __________.
| A．If you don’t agree with the teacher, you should talk with him\her. |
| B．If your dream is beyond reach, give it up and be realistic. |
| C．Your dream will come true as long as you stick to it however hard it is. |
| D．The teacher made little difference to his students. |
What would be the best title of the passage?
| A．Set a practical goal | B．Try to be realistic |
| C．Prove yourself through success | D．Keep your dream |
The stories we share with one another are important. They show wisdom and provide inspiration. They are important to our development. But sometimes people choose not to tell.
Consider the negative effects of not sharing a story in the news: People are wondering if public health officials are holding back too much information about the recent outbreak of Ebola.
There is a danger in holding back stories that ought to be told. Bobette Buster said it like this, “The fact is, history has shown us that stories not told can become like a dangerous genie (妖怪) left in a bottle. When they are finally uncorked, their power to destroy is set free.”
There are a number of reasons why we hide parts of our story: they often show our weaknesses or expose our disadvantages; they require courage and strength to share; and of course, there are some stories that should be kept secret—especially those that embarrass someone else.
Most of us have two selves: the one we display on the outside and the one we actually are on the inside. And the better we get at hiding the stories that show our true selves, the more damage we may be causing to ourselves and to others.
Honesty and openness is important: It proves we are trustworthy. It displays we are human. We are not perfect or better. It highlights the importance of hard work and personal development. Hard work may not allow us to overcome our disadvantages completely. But with hard work, we do not have to be restricted to our mistakes.
Does this mean we admit every weakness, every disadvantage, and every secret regret to everybody we meet? No, of course not. There is a time and a place and a certain level of relationship necessary for some stories to be told in an appropriate manner.What’s the function of the example in Paragraph 2?
| A．It reflects that people are concerning about the spread of Ebola. |
| B．It shows the bad effect caused by sharing a story. |
| C．It proves not sharing a story can cause trouble. |
| D．It concludes that one should share a story at a proper time. |
One of the reasons why people are unwilling to share experiences is that _______.
| A．story-sharing highlights the importance of hard work |
| B．people are used to exposing their weaknesses |
| C．people sometimes have no courage to share their stories |
| D．some stories make themselves feel uneasy |
Which is close in meaning to the underlined word “uncorked” in Paragraph 3?
| A．freed | B．broken | C．unfolded | D．untouched |
The writer aims to convince us to _______.
| A．be open to people close to you by sharing some secrets |
| B．share stories appropriately for the good of others and ourselves |
| C．remove the dangers that can be caused by untold stories |
| D．realize the importance of being honest when making friends |
The National Air and Space Museum in Washington, DC has thousands of objects on display, including the 1903 Wright Flyer, Charles Lindbergh’s Spirit of St. Louis, the Apollo 11 Command Module Columbia, and a lunar rock you can touch. In addition to our exhibition galleries, you may want to visit the Albert Einstein Planetarium, Lockheed Martin IMAX Theater, and the Public Observatory on the east end. There are many things to do at the Museum in DC. We offer daily tours and educational activities for both children and adults. We also have scheduled lectures and events throughout the year.
Hours & Admission: Open every day except December 25. Admission is free.
Regular Hours: 10: 00 am to 5: 30 pm
Extended Hours: 10: 00 am to 7: 30 pm
December 26—30, 2014.
March 30—April 20, 2015.
Fridays and Saturdays, April 24—May 16, 2015.
May 17—September 7, 2015.
VISITING TIPS:
Limit the Number of Bags: All visitors are screened through metal detectors upon entry. The fewer items you bring inside the Museum, the faster your entry. Before you visit, please review the list of prohibited items, which include pocket knives and tripods (三脚架). Visitors carrying prohibited items will not be allowed inside the Museum, so please leave them at home or in your car.
No Food and Drink: Only bottled water is permitted in the Museum. You may only consume food and other drinks in the Food Court, not in the Museum. Groups who bring food are encouraged to picnic on the National Mall.
Please Take Photos: You are welcome to take photos for personal use. However, tripods and monopods (单脚架) are not permitted without approval.
First Aid: The Museum has a First Aid office and a nurse on duty. Please contact the nearest security officer or the Welcome Center for assistance.
Visit the Welcome Center:
At our Welcome Center in the South Lobby, staff and volunteers can answer any questions you have during your visit.
Open 10: 00 am to 5: 30 pm
Phone: 202-633-2214
E-mail: NASM-VisitorServices@ si. eduAccording to the passage, the National Air and Space Museum is a museum _______.
| A．where only adults can take part in some educational activities |
| B．everyone can pay a visit to without buying tickets |
| C．where one can touch anything he likes |
| D．everyone can visit without time limits all the year round |
If the Greens plan to visit the Museum at 6: 00 pm, it is accessible on _______.
| A．December 24, 2014 (Wednesday) | B．March 1, 2015 (Sunday) |
| C．July 6, 2015 (Monday) | D．September 15, 2015 (Tuesday) |
A visitor to the museum can _______.
| A．eat and drink in the Museum or in the Food Court |
| B．take photos with tripods for personal use |
| C．bring fewer bags to go through metal detectors |
| D．get some medical treatment if he suddenly falls ill |
The purpose of this passage is to _______.
| A．make an advertisement for the museum |
| B．attract people to explore the universe |
| C．encourage adults to bring their children there |
| D．show what is on display in the museum |