At one time, computers were expected largely to remove the need for paper copies of documents（文件）because they could be stored electronically. But for all the texts that are written, stored and sent electronically, a lot of them are still ending up on paper.

       It is difficult to measure the quantity of paper used as a result of Internet-connected computers, although just about anyone who works in an office can tell you that when e-mail is introduced, the printers start working overtime. “I feel in my bones this revolution is causing more trees to be cut down,” says Ted Smith of the Earth Village Organisation.

       Perhaps the best sign of how computer and Internet use pushes up demand for paper comes from the high-tech industry itself, which sees printing as one of its most promising new markets. Several Internet companies have been set up to help small businesses print quality documents from a computer. Earlier this week Hewlett-Packard Co. announced a plan to develop new technologies that will enable people to print even more so they can get a hard copy of a business document, a medical record or just a one-line e-mail, even if they are nowhere near a computer. As the company sees it, the more use of the Internet the greater demand for printers

Does all this mean environmental concerns （环境问题） have been forgotten? Some activists suggest people have been led to believe that a lot of dangers to the environment have gone away. “I guess people believe that the problem is taken care of, because of recycling （回收利用）,”said Kelly Quirke, director of the Rainforest Action Network in San Francisco. Yet Quirke is hopeful that high-tech may also prove helpful. He says printers that print on both sides are growing in popularity. The action group has also found acceptable paper made from materials other than wood, such as agricultural waste.

72.   The growing demand for paper in recent years is largely due to ___________.

A.    the rapid development of small businesses    B. the opening up of new markets

C.    the printing of high quality copies               D. the increased use of the Internet

73.   Environmentalists believe one possible way of dealing with the paper situation is ______.

A.    to encourage printing more quality documents

B.    to develop new printers using recycled paper

C.    to find new materials for making paper

D.    to plant more fast-growing trees

74.   Hewlett-Packard Co. has decided to develop new technologies because ___________.

A.    people are concerned about the environment

B.    printers in many offices are working overtime

C.    small companies need more hard copies

D.    they see a growing market for printers

75.   What would be the best title for the text?

A. Computers and Printers                                B. E-mail and the Business World

C. Internet Revolution and Environment                 D. Modern Technology and New Markets

Researchers found that people become happier and experience less worry after they reach the age of fifty．In fact, they say by the age of eighty-five, people are happier with their life than they were when they were eighteen years old．

       The findings came from a survey of more than 340,000 adults in the United States．The Gallup（民意调查） Organization questioned them by telephone in 2008．At that time, the people were between the ages of eighteen and eighty-five．

       The researchers asked questions about emotions like happiness, sadness and worry．They also asked about mental or emotional stress．

       Arthur Stone at Stony Brook University in New York led the study．His team found that levels of stress were highest among adults between the ages of twenty-two and twenty-five．The findings showed that stress levels dropped sharply after people reached their fifties．Happiness was highest among the youngest adults and those in their early seventies．The people least likely to report feeling negative emotions were those in their seventies and eighties．

       Researchers say they do not know why happiness increases as people get older．One theory is that, as people grow older, they grow more thankful for what they have and have better control of their emotions．They also spend less time thinking about bad experiences．

       Professor Stone says the emotional patterns could be linked to changes in how people see the world, or maybe even changes in brain chemistry．

       The researchers also considered possible influences like having young children, being unemployed or being single．But they found that influences like these did not affect the levels of happiness and well-being related to age．

       The study also showed that men and women have similar emotional patterns as they grow older．However, women at all ages reported more sadness, stress and worry than men．

What can be the best title of the text?

       A．Happiness Varies with Ages    B．Experience More, Worry Less

       C．The Older, the Wiser          D．Being Young, Being Happy

We can learn from the research that _________．

       A．only when people get older will they feel happier

       B．stress levels among the youngest are the highest

       C．older people tend to be grateful

       D．older people usually have no worries

According to the research, when people get older, _________．

       A．they miss the old days        B．they are physically weak

       C．they have better self-control    D．they are more emotional

What would the author probably talk about next?

       A．What influences happiness．  B．How to live better．

       C．How to keep happier．       D．Why women are less happier．

The author is intended to _________．

       A．advise how to reduce stress   B．introduce a scientific finding

       C．describe how to do research   D．talk about human emotions

Unbelievable view appealed to me by accident．Just then, I checked once again: the somewhat tiny wood was having a leaf．Could I trust my own eyes? Had the hot sun annoyed me? After all, it  as summer in Costa Rica, a country in Central America.

I left off, wiping sweat from my eyes．Then I moved the wood with my finger．It stopped．It looked up at me with big triangular eyes．Surprise! It was a mantid, a kind of insect, instead of a piece of wood．

The mantid was hanging upside down on a branch．Its wings made it look like a piece of tree bark．Then I noticed something else．The leaf wasn't a leaf at all．The hungry mantid was really eating another insect—a katydid．By now, all that was left of the katydid was a pair of wings．A few moments later, the wings dropped to the ground．The mantid folded its long legs．It sat still．Now it looked even more like a piece of wood than when I had first seen it．

I thought about how I had been fooled by these clever animals．Then I thought about how the two insects go about trying to trick each other．Both mantids and katydids are masters of make-up．Katydids are particularly good at it．Many look like something they are not．Katydids often look like plants．Many seem to be leaves．Others look like leaves of grass．All day, the bugs try to stay perfectly still．Because their bodies look like plants, most animals interested in killing them don't bother them while katydids eat plants．

What is the main topic of the text?

       A．An experience of watching insects．

       B．The fake image of mantids and katydids．

       C．The fight between mantids and katydids．

       D．The living habits of mantids and katydids．

What caused the author amazed at first?

       A．The hot sun in summer．'

       B．The quick moving of the wood．

       C．The sight of wood eating a leaf．

       D．The fight for food between mantids and katydids-

When the mantid was hanging upside down on a branch, it was ____．

       A．waiting for its other food          B．enjoying its food- katydid

       C．eating a leaf from the branch      D．having a break under the tree

Based on the passage, it can be inferred that the mantid ____．

       A．is a kind of meat-eafer              B．is easy to be found by a katydid

       C．looks more like a green leaf             D．mainly lives on the green leaves

Sports shoes that work out whether their owner has done enough exercise to warrant time in front of the television have been devised in the UK.

The shoes — named Square Eyes — contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken in a day. A wireless transmitter(传话器) passes the information to a receiver connected to a television, and this decides how much evening viewing time the wearer deserves, based on the day’s efforts.

The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers, says Gillian Swan, who developed Square Eyes as a final year design project at Brunel University to London, UK. “We looked at current issues and childhood overweight really stood out,” she says. “And I wanted to tackle that with my design.”

Once a child has used up their daily allowance gained through exercise, the television automatically switches off. And further time in front of the TV can only be earned through more steps.

Swan calculated how exercise should translate to television time using the recommended daily amounts of both. Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television. So, every 100 steps recorded by the Square Eyes shoes equals precisely one minute of TV time.

Existing pedometers （计步器） normally clip onto a belt or slip into a pocket and keep count of steps by measuring sudden movement. Swan says these can be easily tricked into recording steps through shaking. But her shoe has been built to be harder for lazy teenagers to cheat. “It is possible, but it would be a lot of effort,” she says. “That was one of my main design considerations.”

51.According to Swan, the purpose of her design project is to ________.

A.keep a record of the steps of the wearer                

B.deal with overweight among teenagers

C.enable children to resist the temptation of TV

D.prevent children from being tricked by TV programs

52.Which of the following is true of Square Eyes shoes?

A.They regulate a child’s evening TV viewing time.  

B.They determine a child’s daily pocket money.

C.They have raised the hot issue of overweight.

D.They contain information of the receiver.

53.What is stressed（强调）by health experts in their suggestion?

A.The exact number of steps to be taken.

B.The precise number of hours spent on TV.

C.The proper amount of daily exercise and TV time.

D.The way of changing steps into TV watching time.

54.Compared with other similar products, the new design ________.

A.makes it difficult for lazy teenagers to cheat

B.counts the wearer’s steps through shaking

C.records the sudden movement of the wearer

D.sends teenagers’ health data to the receiver

55.Which of the following would be the best title for the text?

A.Smart Shoes Decide on Television Time        B.Smart Shoes Guarantee More Exercise

C.Smart Shoes Measure Time of Exercise          D.Smart Shoes Stop Childhood Overweight

You are a German living in Berlin. One day you’ re walk??ing down the street, minding your own business, when sudden??ly a stranger comes up with a smile on his face. After stopping you, he holds a small electronic device (装置) close to his face and speaks slowly into it, saying, in English," Can you tell me where I can buy some sauerkraut?" What should you do? (a) Run away; (b) Call the police; or (c) Listen closely for the device to say in German," Konnen Sie mir bitte sagen, welches sauerkraut haufen kann?"

The most proper answer would be (c) because the person in front of you is only a tourist trying to enjoy himself. The de??vice is said to be the world’s first portable(便携的) translator — a hand-held microcomputer that at the same time translates one spoken language into another. The four-pound, battery-op??erated product is called the Voice, and it is the invention of Advanced Products and Technologies, an American electronics company. When the Voice is introduced in the Unite States in late April — at a price of (1,500 — it will be used to trans??late spoken English into Italian, German, French and Span??ish. The product comes with separate cartridges(盒式存储器) for each of the four languages, which can be changed when the user travels from one country to another. It will be sold in Eu??rope soon after the US introduction, with cartridges that trans??late Italian, German, French and Spanish into English.

The Voice uses a microchip(微型集成电路片) to trans??late languages. It is Started by voice command and produces voice output through a built-in speaker. When the user makes a statement or asks a question, the Voice immediately repeats what has been said in another language.

The device held by the stranger is probably a kind of________.

A. a two-way radio                      B. language translator

C. easily-carried speaker                     D. a multi-functioned computer

. What does the last sentence of the first paragraph mean?

A. Can you tell me where I can buy some sauerkraut?

B. Can I ask for some information from the police?

C. Would you like to try my device?

D. Would you not run away if I ask you where to buy some sauerkraut?

When the stranger says," Can you tell... sauerkraut?" he is ________.

A. learning German from his device

B. asking you the way to the sauerkraut shop

C. making fun of you with his device

D. testing his device for fun

Which of the following is not mentioned in the text?

A. The price of the hand-held microcomputer.

B. The function of the product Voice.

C. The producer pf the small electronic device.

D. The number of the device sold to the European coun??tries.