阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。
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 |
Supermarkets are trying out new computers that make shopping carts more intelligent（具备智能的）. They will help shoppers find paper cups or toilet soap, and keep a record of the bill.
The touch-screen devices（触摸屏装置）are on show at the Food Marketing Institute’s exhibition here this week. “These devices are able to create value and get you around the store quicker,” said Michael Alexandor, manager of Springboard Retail Networks Inc, which makes a smart cart computer called the Concierge.
Canadian stores will test the Concierge in July. A similar device, IBM’s “Shopping Buddy”, has recently been test-marketed at Stop & Shop stores in Massachusetts.
Neither device tells you how many fat grams or calories are in your cart, but they will flash you with items on sale. The idea is to make it easier for people to buy, not to have second thoughts that maybe you should put something back on the shelf.
“The whole model is driven by advertisers’ need to get in front of shoppers,” said Alexandor. “They’re not watching 30-second TV ads anymore.”
People can use a home computer to make their shopping lists. Once at the store, a shopper can use a preferred customer card to start a system（系统）that will organize the trip around the store. If you’re looking for toothpicks, you type in the word or pick it from a list, and a map will appear on the screen showing where you are and where you can find them.
The device also keeps a record of what you buy. When you’re finished, the device figures out your bill. Then you go to the checker or place your card into a self-checkout stand and pay.
The new computerized shopping assistants don’t come cheap. The Buddy devices will cost the average store about $160,000, and the Concierge will cost stores about $500 for each device.
53. The underlined word “they” (paragraph 1) refers to______.
A. supermarkets B. shop assistants
C. shopping carts D. shop managers
54. Which of the following is the correct order of shopping with computerized shopping carts?
a. Start the system. b. Make a shopping list.
c. Find the things you want. d. Go to a self-checkout stand.
A. abdc B. bacd C. acbd D. bcad
55. We can learn from the last paragraph that______.
A. intelligent shopping carts cost a large sum of money
B. the Concierge is cheaper than the Buddy devices
C. shop assistants with computer knowledge are well paid
D. average stores prefer the Concierge to the Buddy devices
56. What might be the most suitable title for the text?
A. New age for supermarkets B. Concierge and Shopping Buddy
C. New computers make shopping carts smarter
D. Touch-screen devices make shopping enjoyable
The twentieth century saw greater changes than any century before: changes for the better, changes for the worse; changes that brought a lot of benefits（益处） to human beings, changes that put man in danger. Many things caused the changes, but, in my opinion, the most important was the progress in science.
Scientific research in physics and biology has vastly broadened our views. It has given us a deeper knowledge of the structure（结构）of matter and of the universe; it has brought us a better understanding of the nature of life and of its continuous development. Technology —the application（应用）of science —has made big advances that have benefited us in nearly every part of life.
The continuation of such activities in the twenty-first century will result in even greater advantages to human beings: in pure science — a wider and deeper knowledge in all fields of learning; in applied science — a more reasonable sharing of material benefits, and better protection of the environment.
Sadly, however, there is another side to the picture. The creativity of science has been employed in doing damage to mankind. The application of science and technology to the development and production of weapons（武器）of mass destruction has created a real danger to the continued existence of the human race on this planet. We have seen this happen in the case of nuclear weapons, Although their actual use has so far occurred only in the Second World War, the number of nuclear weapons that were produced and made ready for use was so large that if the weapons had actually been used, the result could have been the ruin of the human race, as well as of many kinds of animals.
William Shakespeare said, "The web of our life is of a mingled yarn (纱线), good and ill具together. " The above brief review of the application of only one part of human activities – science—seems to prove what Shakespeare said. But does it have to be so? Must the ill always go together with the good? Are we biologically programmed for war?
73.From the fourth paragraph, we can infer that________.
A. a great many nuclear weapons were actually used for war
B. a large number of nuclear weapons should have been used for war
C. the author is doubtful about the ruin of human beings by nuclear weapons
D. the author is anxious about the huge number of nuclear weapons on the earth
74.The underlined word "mingled" in the last paragraph most probably means________.
A. simple B. mixed C. sad D. happy
75.What do you think the author is most likely to suggest if he continues to write?
A. Further application of science to war.
B. More reading of William Shakespeare.
C. Proper use of science in the new century.
D. Effective ways to separate the good from the ill.
When building houses, people used to think about not only the climate of the areas but also the building materials and the fashions for their houses. However, since electricity became more and more expensive, people began to pay much more attention to the energy they could get for their houses and the new ways they could find to protect their houses from both cold and heat.
Now, houses of an old yet new type have been widely built. In some parts of the world, people share their houses with their livestock（家畜）.During cold weather, they gather their cows, goats, or other animals and keep them on the first floor of their houses. The reasons are that the animals can be protected from the cold and that they can help to heat the houses as well. The body heat given off by the animals rises to the second floor of the houses, where people live. By sharing their houses with their livestock, people gain a source of heat.
People who live in or near cities do not usually keep livestock. However, home builders use the fact that heat rises. This natural law can be used in building houses in these areas. Instead of keeping livestock on the first floor, builders fill it with large rocks. As they are open to the sun’s rays during cold weather, these rocks take in heat. They also give off the heat, and, of course, the warm air rises into the living areas of the houses. So these houses are energy-saving.
House-building becomes a great challenge（挑战）to building designers and energy engineers. They try to meet this challenge by learning from old traditions and by using modern technology. And someday in the future, people will be able to live in more energy-saving houses.
56．What did people begin to consider as electricity was no longer cheap?
A．The climate of their areas. B．The energy for their houses.
C．The fashions for their houses. D．The building materials for their houses.
57．People in some areas gain a source of heat by _________.
A．keeping their livestock downstairs
B．protecting their livestock from the cold
C．sharing their houses only with their cows
D．living on the second floor with their livestock
58．The underlined words “natural law” in the third paragraph refer to the fact that ________.
A．heat raises the temperature in the houses
B．heat goes in the upward direction
C．heat goes up if temperature is raised
D．heat increases the temperature of rocks
59．From the passage, we can conclude that __________.
A．people will no longer consider building materials in the future
B．energy-saving buildings will become more popular in the future
C．almost all people will move into the houses heated by large rocks
D．energy engineers will devote themselves only to modern technology
Good tool design is important in the prevention of overuse injuries. Well-designed tools and equipment will require less force to operate them and prevent awkward（别扭的）hand positions. They will allow the worker to keep the elbows（肘）next to the body to prevent damage to the shoulder and arm.
Overuse injuries can therefore be prevented or reduced if the employer provides, and workers use:
●power tools rather than having to use muscle（肌肉）power
●tools with specially designed handles that allow the wrist（手腕）to keep straight . This means that hands and wrists are kept in the same position as they would be if they were hanging relaxed at a person’s side
Figure1. Bend the tool, not the wrist
●tools with handles that can be held comfortably by the whole hand. This means having a selection of sizes—remember that tools that provide a comfortable firm hold for a person with a very large hand may be awkward for someone with a very small hand. This is a particularly important consideration for women who may use tools originally designed for men.
●tools that do not press fingers (or flesh) between the handles, and whose handles do not have sharp edges or a small surface area.
60. What is the best title for the passage?
A. Good Tool Design for Women B. Importance of Good Tool Design
C. Tool Design and Prevention of Injuries D. Overuse of Tools and Worker Protection
61. Which of the following describes a well-designed tool?
A. It’s kept close to the body. B. It fully uses muscle power.
C. It makes users feel relaxed. D. It’s operated with less force.
62. What is Figure 1 used to show?
A. The effective use of the tool. B. The way of operating the tool.
C. The proper design of the handle. D. The purpose of bending the wrist.
63. In choosing tools for women, _____of the handle is the most important.
A. the size B. the edge C. the shape D. the position
PITTSBURGH – For most people, snakes seem unpleasant or even threatening. But Howie Choset sees in their delicate movements a way to save lives.
The 37-year-old Carnegie Mellon University professor has spent years developing snake-like robots he hopes will eventually slide through fallen buildings in search of victims trapped after natural disasters or other emergencies.
Dan Kara is president of Robotics Trends, a Northboro, Mass.-based company that publishes an online industry magazine and runs robotics trade shows. He said there are other snake-like robots being developed, mainly at universities, but didn’t know of one that could climb pipes.
The Carnegie Mellon machines are designed to carry cameras and electronic sensors and can be controlled with a joystick(操纵杆). They move smoothly with the help of small electric motors, or servos, commonly used by hobbyists in model airplanes.
Built from lightweight materials, the robots are about the size of a human arm orsmaller. They can sense which way is up, but are only as good as their human operators, Choset added.
Sam Stover, a search term manager with the Federal Emergency Management Agency based in Indiana, said snake-type robots would offer greater mobility than equipment currently available, such as cameras attached to extendable roles.
“It just allows us to do something we’ve not been able to do before,” Stover said, “We needed them yesterday.”
He said sniffer dogs are still the best search tool for rescue workers, but that they can only be used effectively when workers have access to damaged buildings.
Stover, among the rescue workers who handled the aftermath (后果) of Hurricane Katrina, said snake robots would have helped rescuers search flooded houses in that disaster.
Choset said the robots may not be ready for use for another five to ten years, depending on funding.
72. Which institution is responsible for the development of Choset’s robots?
A. Robotics Trends.B. Pittsburgh City Council.
C. Carnegie Mellon University. D. Federal Emergency Management Agency.
73. Choset believes that his invention ______.
A.can be attached to an electronic arm B.can be used by hobbyists in model airplanes
C.can find victims more quickly than a sniffer dog
D.can sense its way no better than its operators
74. By saying “We needed them yesterday” (paragraph 7), Stover means that snake-like robots _____.
A.could help handle the aftermath of Hurricane Katrina
B.would have been put to use in past rescue work
C.helped rescuers search flooded houses yesterday
D.were in greater need yesterday than today
75. What is the text mainly about?
A.Snake-like robots used in industries. B.Snake-like robots made to aid in rescues.
C.The development of snake-like robots. D.The working principles of snake-like robots.