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If you are afraid of the dark，it’s not a big deal．It’s perfectly normal to feel afraid. After all，animals do too. “Fear matters，”says Karen Warkentin，an ecologist．“It’s a good thing，” she adds, “because fear makes you do things that keep you alive.”
Like kids，many animals experience fear and they respond to the feeling in a variety of ways．A frightened turtle pulls its head and legs inside its shell．A small fish will swim away when a big，hungry fish approaches．
Some animals respond to fear in ways you might not expect．The first example is that the fear of being eaten can scare some frogs right out of their eggs. Warkentin made the surprising discovery while studying red—eyed tree frogs in Costa Rica.
In this species，female frogs attach jellylike clumps（果冻一样的块状物）of their eggs to the undersides of leaves．The leaves hang on branches that dangle（悬挂）over ponds．After they hatch from the eggs，the tadpoles（蝌蚪）then fall into the water，where they eventually grow into adult frogs.
Tree frog eggs usually grow for 6 days before hatching．If they sense that a hungry snake is about to attack，however，they can hatch up to 2 days ahead of schedule. As the snakes are unable to swim，by falling into the water early，the tadpoles can escape.
If hatching early helps protect red—eyed tree frogs from snakes，you might wonder why their eggs don’t always hatch sooner．It turns out that hatching early brings its own danger．Once tadpoles land in the water，hungry fish and other animals like to eat them too．Staying in their eggs for a full 6 days, then, allows frog embryos（胚胎）to grow big and strong．This extra growth improves their chances of surviving in the water．
1．It can be inferred from the passage that fears________.
A．help animals grow bigger and stronger
B．are less common among young animals
C．help animals move a lot to fit the environment
D．are more or less important in order for animals to survive
2．We are told in the passage that tree frogs _______.
A．face danger both inside their eggs and in the water
B．will grow fast if they fall into the water later
C．are surprisingly clever when inside their eggs
D．stay in their eggs longer if they are frightened
3．What do you think would be discussed in the following paragraph?
A．Further explanations as to why tree frogs hatch ahead of schedule．
B．How the unborn frogs know when a snake is about to attack them．
C．Another example of animals that responds to fear in an unexpected way．
D．How tree frogs improve their chances of survival before falling into the water.
Even before my father left us, my mother had to go back to work to support our family．Once I came out of the kitchen, complaining, "Mom, I can't peel potatoes．I have only one hand．"
Mom never looked up from sewing．"You get yourself into that kitchen and peel those potatoes," she told me．"And don't ever use that as an excuse for anything again!"
In the second grade, our teacher lined up my class on the playground and had each of us race across the monkey bars, swinging from one high steel bar to the next．When it was my turn, I shook my head．Some kids behind me laughed, and I went home crying．
That night I told Mom about it．She hugged me, and I saw her "we'll see about that" look． The next afternoon, she took me back to school．At the deserted playground, Mom looked carefully at the bars．
"Now, pull up with your right arm," she advised．She stood by as I struggled to lift myself with my right hand until I could hook the bar with my other arm．Day after day we practiced, and she praised me for every rung （横档） I reached．I'd never forget the next time, crossing the rungs．I looked down at the kids who were standing with their mouths open．
One night, after a dance at my new junior high, I lay in bed sobbing．I could hear Mom come into my room．"Mom," I said, weeping, "none of the girls would dance with me．"
For a long time, I didn't hear anything．Then she said, "Oh, honey, someday you'll be beating those boys off with a bat．" Her voice was soft and weak．I glanced at her to see tears running down her cheeks．Then I knew how much she suffered on my behalf．She had never let me see her tears．Which of the following expressions can be used most suitably to describe Mom's attitude
when she made the child peel potatoes?
| A．Cruel． | B．Serious． | C．Strict． | D．Cold． |
From the passage, we know monkey bars can help a child train ____．
| A．the skill to circle round a bar |
| B．the skill to throw and catch things |
| C．the speed of one's hand movement |
| D．the strength and skill to hang and swing |
What does the sentence "I saw her 'we'll see about that' look" imply?
| A．Mom believed every aim could be achieved if you stuck to it． |
| B．What the child had said brought Mom great attraction and curiosity． |
| C．Mom was determined to prove she herself was better than the teacher． |
| D．The race across monkey bars was not difficult enough for a child to give up． |
The most probable conclusion we can draw after reading the passage is ____．
| A．the last incident was sad enough to make Mom weep |
| B．the child's experience reminded Mom of that of her own |
| C．Mom could solve any problem except the one in the last paragraph |
| D．in fact Mom suffered more in the process of the child's growth |
Some scientists say that animals in the oceans are increasingly threatened by noise pollution caused by human beings.
The noise that affects sea creatures comes from a number of human activities. It is caused mainly by industrial underwater explosions, ocean drilling, and ship engines. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.
Decibels（分贝）measured in water are different from those measured on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibel level of one hundred and ninety-five would have the same effect.
Some scientists have proposed setting a noise limit of one hundred and twenty decibels in oceans. They have observed that noises at that level can frighten and confuse whales.
A team of American and Canadian scientists discovered that louder noises can seriously injure some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales' ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected.
Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research.
Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they believed. They want to prevent noises from harming creatures in the ocean. According to the passage, which of the following is increasingly dangerous to sea creatures?
| A．The man-made noises. | B．The noises made by themselves. |
| C．The sound of earthquakes. | D． The sound of the ice-breaking. |
Which of the following is discussed in the third paragraph?
| A．Different places with different types of noises. |
| B．The very human ears sensitive to all types of noises. |
| C．The ocean animals' reaction to noises. |
| D．The same noise measured differently on land and in the ocean. |
We can know from the passage that many researchers think that the noise limit of one hundred twenty decibels would _____.
| A．prevent them from doing their research work |
| B．benefit them a lot in their research work |
| C．do good to their health |
| D．increase the industrial output |
According to the passage, what will scientists most probably do in the future?
| A．They will try their best to decrease noise. |
| B．They will work hard to cut down noise pollution. |
| C．They will study the effect of different noises. |
| D．They will protect animals from harmful noises. |
Someday a stranger will read your e-mail without your permission or scan the websites you’ve visited. Or perhaps someone will casually glance through your credit card purchases or cell phone bills to find out your shopping preferences or calling 
habits.
In fact, it’s likely that some of these things have already happened to you. Who would watch you without your permission? It might be a husband or wife, a girlfriend, a marketing company, a boss, a police or a criminal. Whoever it is, they will see you in a way you’ve never intended to be seen.
Some experts tell us boundaries are healthy, and it’s important to reveal (暴露) yourself to your friends, family and lovers in stages, at proper times. But few boundaries could remain. The digital equipment makes it easy for strangers to know who you are, where you are and what you like. In some cases, a simple Google search can even reveal what you think. Like it or not, increasingly we live in a world where you simply cannot keep a secret.
The key question is: Does that matter?
When opinion polls ask Americans about privacy, most say they are concerned about losing it. A survey shows that 60 percent of them feel their privacy is “slipping away, and that bothers me.”
But people often say one thing and do another. Only a tiny number of Americans change the behaviors in an effort to protect their privacy. Few people turn down a discount at tollbooths (收费站) to avoid using the EZ-Pass system that can track your automobile movements. And few turn down supermarket loyalty cards. Privacy economist Alessandro Acquits has run a series of tests, and these tests show that the majority of Americans will not keep personal secret just in order to get their hands on a pitiful 50-cents-off coupon (优惠券)
But privacy does matter—at least sometimes. It’s like health: when you have it, you don’t notice it. Only when it’s gone, do you wish you’d done more to protect it. So, when it comes to privacy, why do so many people say one thing and do another? And what can be done about it? What would be the experts advise on the relationships between friends?
| A．Friends should open their hearts to each other. |
| B．Friends should always be faithful to each other. |
| C．There should be a distance even between friends. |
| D．There should be fewer secrets between friends. |
The author says “we live in a world where you simply cannot keep a secret” because ______.
| A．modern society has finally entered a much opened society |
| B．people leave privacy around when using modern technology |
| C．there are always people who are curious about others’ affairs |
| D．many search engines profit by selling people’s privacy |
According to Alessandro Acquits, most Americans _________.
| A．like to exchange their personal secret for the commercial benefit |
| B．aren’t interested in the pitiful commercial benefit to keep their personal secret |
| C．pay no attention to their personal secret for the commercial benefit |
| D．can’t keep the balance between their personal secret and the commercial benefit |
The best title for the passage could be _________?
| A．Is Privacy As Important As Health |
| B．What Can Be Done to Protect the Privacy |
| C．Does Privacy Matter |
| D．Does Modern Technology Reveal Privacy |
As computer games get to look more lifelike, it seems that their violence is spilling over into real life. It is reported that some dozens of children have been murdered since 1997, which has been linked to all obsession (着迷) with violent video games. Recently the parents of a 14-year-old murder victim in the UK blamed the killer's obsession with the game Manhunt, causing a government review of legislation (立法) to protect children.
Psychologists think there may be many reasons why violent games are more harmful to children than violent movies. Firstly, players are actively involved in violence, and may begin to see using weapons as second nature. Secondly, violent games provide repetitive aggressive (侵犯的) experiences that are rewarded by more killing.
Many studies have shown that people who play violent games regularly are more likely to show high levels of aggression. For instance, in 2000, scientists in Iowa State University found that people who played violent games were more likely to admit involvement in aggressive behaviors, including assaults (侵犯人体罪) or robberies.
A study of 13 to 14-year-old children showed that more than half had played games recommended only for over18s. The more violent the games they played, the more they considered physical aggression to be acceptable. Besides, children who play violent games are more prone (有做……倾向的) to arguing with teachers and fighting.
Experimental studies have also hinted at a possible link. In one, scientists asked a group of students to play a violent game, while another group played the nonviolent. Those who played the violent games were faster to react to aggressive words subsequently (随后) flashed on screen. We may infer from the first paragraph that .
| A．computer games have little to do with violence in real life |
| B．Manhunt has resulted in the death of one of its plays |
| C．lifelike computer games are forbidden in the UK |
| D．legislation to protect children in the UK still needs improving |
Violent games are more harmful to children than violent movies because .
| A．violent movies are not so attractive to children |
| B．the viewers can't take part in violent movies |
| C．violent movies are not popular with children |
| D．children can win awards in violent games |
What will be probably discussed in the paragraph following the passage？
| A．Further research on the harm of violent games. |
| B．Further differences between violent game and nonviolent games. |
| C．Ways to protect children from violent games. |
| D．The result of more experimental studies. |
What would be the best title for the passage？
| A．Games and Murder |
| B．Should Computer Games become lifelike？ |
| C．Legislation, effective or not？ |
| D．Violent Games and Nonviolent Games |
Jeanne Calment, a French woman, became a record breaker on 17 October, 1995, when at the age of 120 years and 238 days, she became the longest-lived human being on record. A Japanese man died in 1986 at the age of 120 years and 237 days.
Jeanne Calment lives in a small old people’s home in the south of France; her husband, her only child and her grandson have all died. She is nearly blind and deaf and is always in a wheelchair, but her doctor describes her as being more like a 90-year-old woman in good health than someone of 120. She still has a lively sense of humor. When asked on her 120th birthday what she expected of the future, she replied: A very short one. She also remarked that she thought the good Lord had forgotten all about her.
So what is the key to a long life? According to some doctors, diet, exercise and no smoking are the three important factors. Jeanne Calment has followed two of the tips. She has always eaten a healthy diet, and she used to do exercise every day until she broke her leg at the age of 115. However, until recently she drank two glasses of strong red wine a day, and she does smoke (now only a little). Besides, Jeanne Calment might have got very good genes from her parents. Her father lived to the age of 94 and her mother to 86.
A local lawyer bought her house when she was 80 under an agreement that he would pay her some money every year until her death. It must have seemed a good move at the time, but so far the lawyer has paid her at least three times the value of the house. Every year on her birthday, Jeanne Calment sends him a card saying: Sorry, I’m still alive!How does Jeanne Calment feel about her old age?
A．She is miserable and unhappy. |
B．She is cheerful and humorous. |
| C．She would like to live much younger. | D．She feels she is going to die very soon. |
We can owe her good health and long life to _______.
| A．smoking only a little every day |
| B．her giving up smoking and drinking |
| C．drinking two glasses of strong red wine every day |
| D．the good genes from her parents, a healthy diet and some exercise |
Which of the following word could best replace the word “move” in the fourth paragraph?
| A．deal | B．trick | C．march | D．sport |
Why does Jeanne Calment say “Sorry, I’m still alive” to the lawyer every year on her birthday?
| A．Because she had an agreement at 80 with the lawyer which was to her advantage. |
| B．Because she has asked the lawyer to pay her more rent than they first agreed. |
| C．Because the lawyer has paid her much more money than the value of the house. |
| D．Because the house she sold to the lawyer is worth the money he has already paid. |
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