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阅读下面的短文,从每题所给的四个选项(A、B、C、D)中,选出最佳选项。
C
In early October, thousands of people around the globe stepped outside to gaze at their local night sky. As part of an event called the Great World Wide Star Count, adults and kids of looked for one of two constellations(星群)—Cygnus in the Northern Hemisphere and Sagittarius in the Southern Hemisphere. The observers recorded how many stars they saw and how bright the stars were, and then posted their results online.
The Star Count was part of global effort to help scientists learn more about how light pollution affects our view of the night sky. Whether participants saw thousands of stars—or just a dozen—depended a lot on whether they were surrounded by darkness or by twinkling city lights.
Dark spots on the map, above, show the locations of people who participated in the first annual Great Worldwide Star Count. Over 2 weeks, people in 64 countries made 6,624 observations.
On a clear night, with no clouds, moonlight, or artificial lights to block the view, people can see more than 14,000 stars in the sky, but when people are surrounded by city lights they're lucky to see 150 stars.
If you've ever driven toward a big city at night and seen its glow from afar, you're witnessed light pollution. It occurs when light from streetlights, office buildings, signs, and other sources streams into space and illuminates the night sky. This light makes many stars invisible to people on Earth.
Dust and particles of pollution from factories and industries worsen the effects of light pollution. When these particles float into the atmosphere, light ricochets(跳飞)off of them and scatters even more.
Light pollution doesn't fly affect star visibility. It can harm wildlife too. Scientists don't entirely understand how animals navigate at night, but it's clear that artificial light can attract them, making them go off course. There's increasing evidence, for example, that migrating birds use sunsets and sunrises to help find their way.
Why did do many people look at the local sky?

A.To enjoy the beauty of the stars.
B.To develop their interest in Astronomy.
C.To help scientists do a research on light pollution.
D.To get the exact number of star in the sky.

When people are surrounded by artificial lights, ________.

A.they can find more stars in the sky
B.the stars might appear more clearly
C.the stars seem to be bigger
D.they can find far fewer stars

What does the word “illuminates” probably means in this passage?

A.make...bright
B.make...invisible
C.make...beautiful
D.make...clear

How does light pollution affect birds?

A.It does great harm to their eyes at night.
B.It mistakes them the way when they migrate.
C.It can enable them to see their routes clearly.
D.It can make them find their way easily.

According to the maps above, which continent has fewest participants in the Star Count?

A.North America.
B.Australia.
C.South America.
D.Africa.
科目 英语   题型 阅读理解   难度 中等
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相关试题

A typical lion tamer (驯兽师) in people's mind is an entertainer holding a whip (鞭子)and a chair .The whip get all of the attention , but it's mostly for show .In reality , it's the chair that does the important work .When a lion tamer holds a chair in front of the lion's face , the lion tries to focus on all four legs of the chair at the same time .With its focus divided , the lion becomes confused and is unsure about what to do next .When faced with so many options , the lion chooses to freeze and wait instead of attacking the man holding the chair.

How often do you find yourself in the same position as the lion ? How often do you have something you want to achiever (e,g. lose weight , start a business , travel more ) -only to end up confused by all of the options in front of you and never make progress ?

This upsets me to no end because while all the experts are busy debating about which option is best , the people who want to improve their lives are left confused by all of the conflicting information .The end result is that we feel like we can't focus or that we're focused on the wrong things , and so we take less action , make less progress , and stay the same when we could be improving .

It doesn't have to be that way .Anytime you find the world waving a chair in your face , remember this :All you need to do is focus on one thing .You just need to get started .Starting before you feel ready is one of the habits of successful people .If you have somewhere you want to go , something you want to accomplish , someone you want to become ….take immediate action .If you're clear about where you want to go , the rest of the world will either help you get there or get out the way .

1.

Why does the lion tamer use a chair?

A. To trick the lion.
B. To show off his skill .
C. To get ready for a fight.
D. To entertain the audience.
2.

In what sense are people similar to a lion facing a chair?

A. They feel puzzled over choices.
B. They hold on to the wrong things.
C. They find it hard to make changes.
D. They have to do something for show.
3.

What is the author's attitude towards the experts mentioned in paragraph 3?

A. Tolerant
B. Doubtful
C. Respectful
D. Supportive
4.

When the world is "waving a chair in your face", you're advised to.

A. wait for a better chance
B. break your old habits
C. make a quick decision
D. ask for clear guidance

Passenger pigeons(旅鸽)once flew over much of the United States in unbelievable numbers. Written accounts from the 18th and 19th centuries described flocks(群)so large that they darkened the sky for hours.
It was calculated that when its population reach its highest point, there were more than 3 billion passenger pigeons – a number equal to 24 to 40 percent of the total bird population in the United States, making it perhaps the most abundant birds in the world. Even as late as 1870 when their numbers had already become smaller, a flock believed to be 1 mile wide and 320 miles (about 515 kilometers) long was seen near Cincinnati.
Sadly, the abundance of passenger pigeons may have been their undoing. Where the birds were abundant, people believed there was an ever-lasting supply and killed them by the thousands. Commercial hunters attracted them to small clearings with grain, waited until pigeons had settled to feed, then threw large nets over them, taking hundreds at a time. The birds were shipped to large cities and sold in restaurants.
By the closing decades of the 19th century, the hardwood forests where passenger pigeons nested had been damaged by Americans’ need for wood, which scattered(驱散)the flocks and forced the birds to go farther north, where cold temperatures and spring storms contributed to their decline. Soon the great flocks were gone, never to be seen again.
In 1897, the state of Michigan passed a law prohibiting the killing of passenger pigeons, but by then, no sizable flocks had been seen in the state for 10 years. The last confirmed wild pigeon in the United States was shot by a boy in Pike County, Ohio, in 1900. For a time, a few birds survived under human care. The last of them, known affectionately as Martha, died at the Cincinnati Zoological Garden in September 1, 1914.
In the 18th and early 19th centuries, passenger pigeons _______.

A.were the biggest bird in the world
B.lived mainly in the south of America
C.did great harm to the natural environment
D.Were the largest population in the US

The underlined word “undoing” probably refers to the pigeons’ _______.

A.escape B.ruin C.liberation D.evolution

What was the main reason for people to kill passenger pigeons?

A.To seek pleasure. B.To save other birds.
C.To make money. D.To protect crops.

What can we infer about the law passed in Michigan?

A.It was ignored by the public. B.It was declared too late.
C.It was unfair. D.It was strict.

The Cambridge Science Festival Curiosity Challenge
Dare to Take the Curiosity Challenge!
The Cambridge Science Festival (CSF) is pleased to inform you of the sixth annual Curiosity Challenge. The challenge invites, even dares school students between the ages of 5 and 14 to create artwork or a piece of writing that shows their curiosity and how it inspires them to explore their world.
Students are being dared to draw a picture, write an article, take a photo or write a poem that shows what they are curious about. To enter the challenge, all artwork or pieces of writing should be sent to the Cambridge Science Festival, MIT Museum, 265 Mass Avenue. Cambridge 02139 by Friday, February 8th.
Students who enter the Curiosity Challenge and are selected as winners will be honored at a special ceremony during the CSF on Sunday, April 21st. Guest speaker will also present prizes to the students. Winning entries will be published in a book. Student entries will be exhibit and prizes will be given. Families of those who take part will be included in the celebration and brunch will be served.
Between March 10th and March 15th, each winner will be given the specifics of the closing ceremony and the Curiosity Challenge celebration. The program guidelines and other related information are available at: http://cambridgesciencefestival.org.
Who can take in the Curiosity Challenge?

A.School students.
B.Cambridge locals.
C.CSF winners.
D.MIT artists.

When will the prize-giving ceremony be held?

A.On February 8th.
B.On March 10th
C.On March 15th..
D.On April 21st.

What type of writing is this text?

A.An exhibition guide.
B.An art show review.
C.An announcement.
D.An official report.

People aren’t walking any more---if they can figure out a way to avoid it.
I felt superior about this matter until the other day I took my car to mail a small parcel. The journey is a matter of 281 steps. But I used the car. And I wasn’t in ay hurry, either, I had merely become one more victim of a national sickness: motorosis.
It is an illness to which I had thought myself immune(), for I was bred in the tradition of going to places on my own two legs. At that time, we regarded 25 miles as good day’s walk and the ability to cover such a distance in ten hours as sign of strength and skill. It did not occur to us that walking was a hardship. And the effect was lasting. When I was 45 years old I raced –and beat—a teenage football player the 168 steps up the Stature of Liberty.
Such enterprises today are regarded by many middle-aged persons as bad for the heart. But a well-known British physician, Sir Adolphe Abrhams, pointed out recently that hearts and bodies need proper…… is more likely to have illnesses than one who exercises regularly. And wlaking is an ideal form of exercise--- the most familiar and natural of all.
It was Henry Thoreau who showed mankind the richness of going on foot. The man walking can learn the trees, flower, insects, birds and animals, the significance of seasons, the very feel of himself as a living creature in a living world, He cannot learn in a car.
The car is a convenient means of transport, but we have made it our way of life. Many people don’t dare to approach Nature any more; to them the world they were born to enjoy is all threat. To them security is a steel river thundering on a concrete road. And much of their thinking takes place while waiting for the traffic light to turn green.
I say that the green of forests is the mind’s best light. And none but the man on foot can evaluate what is basic and everlasting.
What is the national sickness?

A.Walking too much
B.Traveling too much
C.Driving cars too much
D.Climbing stairs too much.

What was life like when the author was young?

A.People usually went around on foot.
B.people often walked 25 miles a day
C.People used to climb the Statue of Liberty.
D.people considered a ten-j\hour walk as a hardship.

The author mentions Henry Thoreau to prove that

A.middle-aged people like getting back to nature
B.walking in nature helps enrich one’s mind
C.people need regular exercise to keep fit
D.going on foot prevents heart disease

What is compared to “a steel river” in Paragraph6?

A. A queue of cars
B.A ray of traffic light
C.A flash of lightning
D.A stream of people

What is the author’s intention of writing this passage?

A.To tell people to reflect more non life.
B.To recommend people to give up driving
C.To advise people to do outdoor activities
D.To encourage people to return to walking

"Dad," I say one day …..take a trip. Why don't you fly and meet me?"

My father had just reired……….. His job filled his day, his thought, his life. While he woke up and took a warm shower, I screamed under a freezing waterfall Peru. While he tied a tie and put on the same Swiss watch, I rowed a boat across Lake of the Ozarks.

My father sees me drfting aimlessly, nothing to show for my 33 years but a passport full of funny stamps. He wants me to settle down, but now I want him to find an adventure.

He agrees to travel with me through the national parks. We meet four weeks later in Rapid City.

" What is our first stop?" asks my father.

"What time is it?"

"Still don't have a watch?"

Less than an hour away is Mount Rushmore. As he stares up at the four Presidents carved in granite(), his mouth and eyes open slowly, like those of little boy.

"Unbelievable," he says, "How was this done?"

A film in the information center shows sculptor Gutzon Borglum devoted 14 years to the sculpture and then left the final touches to his son.

We stare up and I ask myself, Would I ever devote my life to anything?

No directions, …… I always used to hear those words in my father's voice. Now I hear them in my own.

The next day we're at Yellowstone National Park, where we have a picnic.

"Did you ever travel with your dad? I ask.

"Only once," he says. " I never spoke much with my father. We loved each other---but never said it. Whatever he could give me, he gave."

The kast sebtebce----it's probably the same thing I's say about my father. And what I'd want my child to say about me.

In Glacier National Park, my father says, "I've never seen water so blue." I have, in several places of the world, I can keep traveling, I realize--- and maybe a regular job won't be as dull as I feared.

Weeks after our trip, I call my father.

"The photos from the trip are wonderful," he says." We have got to take another trip like that sometime.

I tell him I've learn decided to settle down, and I'm wearing a watch.

1.

We can learn from Paragraphs 2 and 3 that the father.

A. followed the fashion
B. got bored with his job
C. was unhappy withthe author's life
D. liked the author's collection of stamps
2.

What does the author realize at Mount Rushmore?

A. His father is interested in sculpture
B. His father is as innocent as a little boy
C. He should learn sculpture in the future
D. He should pursue a specific aim in life.
3.

From the underlined paragraph, we can see that the author.

A. wants his children to learn from their grandfather
B. comes to understand what parental love means
C. learns how to communicate with his father
D. hopes to give whatever he can to his father
4.

What could be inferred about the author and his father from the end of the story?

A. The call solves their disagreements
B. The Swiss watch has drawn them closer
C. They decide to learn photography together.
D. They begin to change their attitudes to life
5.

What could be the best title for the passage?

A. Love Nature, Love Life
B. A Son Lost in Adventure
C. A Journey with Dad
D. The Art of Travel

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