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     "The noise made by boats of whale-watching tourists may be causing communication problems for the animals," British researchers said last week.
Whale watching is a popular tourist activity in places where groups of killer whales (虎鲸) live. Every day, dozens of boats filled with tourists go to watch the beautiful animal. Unfortunately, the engines of the boats make a lot of noise, and that may be causing problems for the whales, according to a report in the US science magazine Nature .
The whales travel in groups, and communicate with each other through sonic  (声波的)  calls  that some scientists refer to as singing. The sounds of the boat engines may be creating too much background noise for the whales to be able to hear each other.
The researchers listened to recordings of whale calls made between 15 and 25 years ago, before whale-watching became popular. These were compared to more recent recordings.
They found that the animals have started to sing for longer than they used to, like a person shouting to a friend across a noisy room.
It is believed that the whales are trying to communicate hunting or  breeding(繁殖) information. Scientists said that, "if this is prevented, the future of the world's whale population could be in danger."
"Animals became slow in mind and repeat themselves in noisy areas," said Volker Deecke, a Canadian biologist. "They have to say things twice or three times in order to be understood.”
The killer whales studied were living off the coast of northwestern America. The number of killer whales in this area has been falling for several years, but scientists are not sure why.  
The passage mainly tells us______.

A.The problems of whale-watching
B.how killer whales communicate with each other
C.the reduced population of killer whales caused by whale-watching
D.hearing problems of the killer whales caused by whale watching.

Now in a noisy background, the killer whales have to__________.

A.sing in a louder voice
B.sing longer
C.travel in smaller groups
D.get nearer to each other

Scientists believe that killer whales sing to_______.

A.warn each other of dangers
B.keep in the same group
C.send useful information
D.enjoy themselves

From the passage, we can feel that the author is_______.

A.angry
B.hopeful
C.worried
D.disappointed

Which of the following is the possible result of whale-watching?

A.Fewer fish in the ocean.
B.Misunderstanding between the whales.
C.Reduced number of the whales in the area.
D.Serious water pollution along the coast.
科目 英语   题型 阅读理解   难度 中等
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Over the last 70 years.researchers have been studying happy and Unhappy people and finally found out ten factors that make a difference.Our feelings of well-being at any moment are determined to a certain degree by genes.However of all the factors,wealth and age are the top two.
Money can buy a degree of happiness.But once you can afford to feed,clothe and house yourself, each extra dollar makes less and less difference.
Researchers find that,on average,wealthier people are happier.But the link between money and happiness is complex.In the past half-century, average income has sharply increased in developed countries,yet happiness levels have remained almost the same.Once your basic needs are met,money only seems to increase happiness if you have more than your friends,neighbors and colleagues.
“Dollars buy Status(社会地位),and status makes people feel better,” conclude some experts,which helps explain why people who can seek status in other ways-scientists or actors,for example-may happily accept relatively poorly-paid jobs.
In a research,Professor Alex Michalos found that the people whose desires-not just for money,but for friends,family, job,health-rose furthest beyond what they already had,tended to be less happy than those who felt a smaller gap(差距).Indeed,the size of the gap predicted happiness about five times better than income alone.“The gap measures just blow away the only measures of income,”says Michalos.
Another factor that has to do with happiness is age.Old age may not be so bad.“Given all the problems of aging,how could the elderly be more satisfied?” asks Professor Laura Carstensen.
Why are old people happier? Some scientists suggest older people may expect life to be harder and learn to live with it,or they're more realistic about their goals,only setting ones that they know they can achieve.But Carstensen thinks that with time running out,older people have learned to focus on things that make them happy and let go of those that don't.
“People realize not only what they have,but also that what they have cannot-last forever,” she says.“A goodbye kiss to a husband or wife at the age of 85,for example,may bring far more complex emotional responses than a similar kiss to a boy or girl friend at the age of 20.”
According to the passage,the feeling of happiness _________.

A.has little to do with wealth B.increases gradually with age
C.is measured by desires D.is determined partly by genes

Some actors would like to accept poorly-paid jobs because the jobs_________.

A.make them feel much better B.provide chances to make friends
C.improve their social position D.satisfy their professional interests

Aged people are more likely to feel happy because they are more_________.

A.optimistic B.practical C.successful D.emotional

Professor Alex Michalos found that people feel less happy if__________.

A.the gap between reality and desire is bigger
B.they have a stronger desire for friendship
C.their income is below their expectation
D.the hope for good health is greater

“My kids really understand solar and earth-heat energy,” says a second-grade teacher in Saugus, California. “Some of them are building solar collectors for their energy course.” These young scientists are part of City Building Educational Program (CBEP), a particular program for kindergarten through twelfth grade that uses the stages of city planning to teach basic reading, writing and math skills and more.
The children don’t just plan any city. They map and analyze (分析) the housing, energy, and transportation requirements of their own district and foretell its needs in 100 years. With the aid of an architect (建筑师) who visits the classroom once a week, they invent new ways to meet these needs and build models of their creations. “Designing buildings of the future gives children a lot of freedom,’’ says the teacher who developed this program. “They are able to use their own rich imagination and inventions without fear of blame, because there are no wrong answers in a future context. In fact, as the class enters the final model-building stage of the program, an elected ‘official’ and ‘planning group’ make all the design decisions for the model city and the teacher steps back and becomes an adviser.
CBEP is a set of activities, games and imitations that teach the basic steps necessary for problem-solving: observing, analyzing, working out possible answers, and judging them based on the children’s own standards.
The program is designed to_________.

A.direct kids to build solar collectors
B.train young scientists for city planning
C.develop children’s problem-solving abilities
D.help young architects know more about designing.

An architect pays a weekly visit to the classroom to ________.

A.find out kids’ creative ideas B. help kids with their program
C. discuss with the teacher D. give children a lecture

Who is the designer of the program?

A.An official. B.An architect. C.A teacher. D.A scientist

The children feel free in the program because __________.

A.they can design future buildings themselves
B.they have new ideas and rich imagination
C.they are given enough time to design models
D. they need not worry about making mistakes

It was a winter morning,just a couple of weeks before Christmas 2005.While most people were warming up their cars,Trevor, my husband,had to get up early to ride his bike four kilometers away from home to work.On arrival,he parked his bike outside the back door as he usually does.After putting in 10 hours of labor, he returned to find his bike gone.
The bike,a black Kona 18 speed,was our only Transport.Trevor used it to get to work, putting in 60-hour weeks to support his young family.And the bike was also used to get groceries(食品杂货),saving us from having to walk long distances from where we live.
I Was so sad that someone would steal our bike that 1 wrote to the newspaper and told them our story.Shortly after that,several people in bur area offered to help.One wonderful stranger even bought a bike,then called my husband to pick it up.Once again my husband had a way to get to and from his job.It really is all honor that a complete stranger would go out of their way for someone they have never met before.
People say that a smile can be passed from one person to another, but acts of kindness from strangers are even more so.This experience has had a spreading effect in our lives because it strengthened our faith in humanity(人性)as a whole.And it has influenced us to be more mindful of ways we,too,can share with others.No matter how big or how small,all act of kindness shows that someone cares.And the results can be everlasting.
Why was the bike so important to the couple?

A.The man's job was bike racing. B.It was their onlypossession.
C.They used it for work and daily life. D.It was a nice Kona 18 speed.

We can infer from the text that_________.

A.the couple worked 60 hours a week B.people were busy before Christmas.
C.the stranger brought over the bike D.life was hard for the young family

How did people get to know the couple's problem?

A.From radio broadcasts. B.From TV news.
C.From a newspaper. D.From a stranger.

What do the couple learn from their experience?

A.Strangers are usually of little help. B.An act of kindness can mean a lot.
C.News reports make people famous. D.One should take care of their bike.

A popular saying goes, “Sticks and stone may break my bones, but words will never hurt me.” However, that’s not really true. Words have the power to build us up or tear us down. It doesn’t matter if the words come from someone else or ourselves – the positive and negative effects are just as lasting.
We all talk to ourselves sometimes. We’re usually too embarrassed to admit it, though. But we really shouldn’t be, because more and more experts believe talking to ourselves out loud is a healthy habit.
This “self-talk” helps us motivate ourselves, remember things, solves problems, and calm ourselves down. Beware, though, that as much as 77% of self-talk tends to be negative. So in order to stay positive, we should only speak words of encouragement to ourselves. We should also be quick to give ourselves a pat on the back. The next time you finish a project, do well in a test, or finally clean your room, join me in saying, “Good job!”
Words possess power because of their lasting effects. Many of us regret something we once said. And we remember unkind words said to us! Before speaking, we should always ask ourselves: Is it true? Is it loving? Is it needed? If what we want to say doesn’t pass this test, then it’s better left unsaid.
Words possess power: both positive and negative. Those around us receive encouragement when we speak positively. We can offer hope, build self-esteem(自尊) and motive others to do their best. Negative words destroy all those things. Will we use our words to hurt or to heal? The choice is ours.
The author argues in the first paragraph that ________.

A.words will never hurt us at all
B.words have lasting effects on us
C.positive effects last longer than negative effects
D.negative words last longer than positive effects

Why should we not feel embarrassed when talking to ourselves?

A.Almost everybody has the habit of talking to oneself.
B.It does harm to have “self-talk” when we are alone.
C.Talking to ourselves helps us to solve all the problems.
D.Talking to ourselves is believed to be good for our health.

The underlined phrase “give ourselves a pat on the back” in Paragraph 3 means _________.

A.blame ourselves B.punish ourselves
C.praise ourselves D.talk to ourselves

Which of the following statements would the author agree to?

A.It is better to think twice before talking to others.
B.It is impossible for unkind words to be forgotten.
C.Words always possess long positive effects.
D.Kind words are sometimes not needed at all.

It was a winter morning,just a couple of weeks before Christmas 2005.While most people were warming up their cars,Trevor, my husband,had to get up early to ride his bike four kilometers away from home to work.On arrival,he parked his bike outside the back door as he usually does.After putting in 10 hours of labor, he returned to find his bike gone.
The bike,a black Kona 18 speed,was our only Transport.Trevor used it to get to work, putting in 60-hour weeks to support his young family.And the bike was also used to get groceries(食品杂货),saving us from having to walk long distances from where we live.
I Was so sad that someone would steal our bike that 1 wrote to the newspaper and told them our story.Shortly after that,several people in bur area offered to help.One wonderful stranger even bought a bike,then called my husband to pick it up.Once again my husband had a way to get to and from his job.It really is all honor that a complete stranger would go out of their way for someone they have never met before.
People say that a smile can be passed from one person to another, but acts of kindness from strangers are even more so.This experience has had a spreading effect in our lives because it strengthened our faith in humanity(人性)as a whole.And it has influenced us to be more mindful of ways we,too,can share with others.No matter how big or how small,all act of kindness shows that someone cares.And the results can be everlasting.
Why was the bike so important to the couple?

A.The man's job was bike racing. B.It was their onlypossession.
C.They used it for work and daily life. D.It was a nice Kona 18 speed.

We can infer from the text that_________.

A.the couple worked 60 hours a week B.people were busy before Christmas.
C.the stranger brought over the bike D.life was hard for the young family

How did people get to know the couple's problem?

A.From radio broadcasts. B.From TV news.
C.From a newspaper. D.From a stranger.

What do the couple learn from their experience?

A.Strangers are usually of little help. B.An act of kindness can mean a lot.
C.News reports make people famous. D.One should take care of their bike.

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