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couldn't get used to it.
What was it? It was a string of earthquakes that made the small town shake all the time.This went on
for more than a year. Sometimes the quakes were very small. Only certain instruments could pick them
up.At other times, the quakes damaged houses and land. The people were always afraid. They wished
they knew how to stop the ground from shaking.
People all over the world would like to know when an earthquake is coming. But an earthquake is
almost always a surprise. Under the surface of the Earth, huge blocks of rock drift apart or slide against
each other.The ground above splits apart or rumbles and shakes.
Some scientists hope to predict quakes by keeping a close watch on animals. It seems that some
animals can sense an earthquake coming. In 1969, animals in a Chinese zoo began to act funny one day.
Swans flew out of their pond. A panda sat down, covered its eyes with its paws, and groaned. The
animals seemed to know that something was about to happen. And it did. An earthquake struck. What
was it that the animals sensed? Scientists are trying to find out.
Keeping close track of the Earth's magnetic force in earthquake areas may also help. A few years ago,
in Hollister, CA, scientists kept a record of the area's magnetic pull. For one week, the force grew
stronger. Then it weakened suddenly. A day later, an earthquake struck.
It may become possible to know when and where an earthquake will happen. But it will be much
harder to stop one from happening.
Many scientists think that the Earth's covering is not smooth. They say the earth's "skin" is made up of
huge puzzle pieces called plates. Land and ocean floors make up these huge plates. Under the Earth's
crust (外壳), or plates, is hot rock. The plates float on top of this rock. Sometimes the rock forces its
way through the crust. What happens then? A volcano is born! More often, the rock moves and forces
the plates to pull away from each other, causing earthquakes to happen.(Volcanoes and earthquakes
often go together.)
Sometimes, the plates end up on top of each other. When this happens, the land above may look
strange. Seen from the air, there seems to be a long scar in the Earth. This is called a fault (断层).The
areas along faults have more earthquakes than other parts of the Earth.
For now, we'll just have to shake along with the Earth. It goes through millions of small earthquakes every year. With luck, you won't feel a thing!
B. keep close track of the Earth's magnetic force in earthquake areas
C. keep inventing instruments to pick up every earthquake
D. keep a record of earthquake area's magnetic pull of force
B. an earthquake happens
C. a fault forms
D. the Earth's covering becomes smooth
B. When the plates end up on top of each other.
C. Before an earthquake happens.
D. After volcano comes.
Two hours from the tall buildings of Manhattan and Philadelphia live some of．the world’s largest black bears．They are in northern Pennsylvania’s Pocono Mountains，a home they share with an abundance of other wildlife．
The streams, lakes，mountains and forests that make the Poconos an ideal place for black bears have also attracted more people to the area．Open spaces are threatened by plans for housing and important wild animals are endangered by highway construction．To protect the Poconos’natural beauty from irresponsible development．the Nature Conservancy(保护协会)named the area one of America’s“Last Great Places”．
Operating out of a century—old schoolhouse in the village of Long Pond，Pennsylvania，the conservancy’s partner Cook is working with local people and business leaders to balance economic growth with environmental protection．By forming partnerships with people like Francis Altemose，the Conservancy has been able to protect more than14，000 acres of environmentally important land in the area．
Altemose’s family has farmed in the Poeono area for generations．Two years ago Francis worked with the Conservancy to include his farm in a county farmland protection program．As a result，his family’s land can be protected from development and the Altemoses will be better able to provide a secure financial future for their 7-year-old grandson．
Cook owes the Conservancy’s SUCCESS in the Poconos to having a local presence and a commitment to working with local residents．
“The key to protecting these remarkable lands is connecting with the local community．”Cook said．“The people who live there respect the land．They value quiet forests，clear streams and abundant wildlife．They are eager to help with conservation effort．”
For more information on how you can help The Nature Conservancy protect the Poeonos and the world’s other“Last Great Places．”please call l一888—5646864 or visit us on the World Wide Web at WWW．tnc．org．
1．More people are attracted to Pocono Mountains because ．
A．there live the world’s largest black bears
B．transportation is convenient in the area
C．many houses are being built there
D．natural conditions are wonderful there
2．The purpose in naming the Poconos as one of America’s“Last Great Places”is to ．
A．gain support from the local community
B．protect it from irresponsible development
C．make it a better home for black bears
D．provide financial security for future generations
3．We can learn from the passage that ．
A．Francis is voluntary to cooperate with the Conservancy
B．wildlife in the Pocono area is dying out rapidly
C．the security of the Pocono residents is being threatened
D．farmlands in the Pocono area are shrinking fast
4．What is important in protecting the Poconos according to Cook?
A．The setting up of an environmental protection website．
B．Support from organizations like The Nature Conservancy．
C．Cooperation with the local residents and business leaders．
D．Inclusion of farmlands in the 81"ca protection program．
5．The passage most probably is ．
A．an official document B．a news story
C．an advertisement D．a research report
查看习题详情和答案>>all of them are destructive. The intensity (强度) of an earthquake is measured on the Richter Scale, which goes from zero upward. The highest magnitude recorded to date is 8.9Major damage generally occurs
from quakes ranging upwards from 6.0.
The actual cause of earthquake itself is the breaking of rocks at or below the breaking of rocks or
below the earth's surface. This is produced by pressure which scientists believe may be due to a number
of reasons, two of which are the changed of the earth's crust (外壳) and continental drift(漂流).
In order to minimize the damage and to decrease some of the pain resulting from earthquakes,
scientists are working on ways to improve accurate prediction. Two kinds of the instruments now in use
to achieve this goal are seismograph(地震仪) and tilt (倾斜) meter. The former records any shaking of
the earth. Seismologists ca accurately record the exact time, location and size of an earthquake. The latter, as the name suggests, is used to record any changes in the tilt of the land.
B. Major damage usually happens when the intensity of an earthquake is below 6.0
C. Scientists usually use seismographs and tilt meters to predict earthquakes now.
D. Continental drift may cause an earthquake.
A.Scientists are working hard to predict the earthquakes.
B.The reason why earthquakes happen.
C.Introduce the earthquake and its prediction.
B. A report
C. A science magazine.
D. A history book.
Ireland has had a very difficult history. The problems started in the 16th century when English rulers fried to conquer(征服) Ireland. For hundreds of years, the Irish people fought against the English. Finally, in 1921. The British government was forced to give independence to the south of Ireland. The result is that today there are two “Irelands”. Northern Ireland. In the north, is part of the united kingdom. The republic of Ireland. In the south. Is an independent country.
In the 1840s the main crop, potatoes ,was affected by disease and about 750,000 people died of bunger. This, and a shortage (短缺) of work , forced many people to leave Ireland and live in the USA, the UK, Australia and Canada. As a result of these problems, the population fell from 8.2 million in 1841 to 6.6 million in 1851.
For many years, the majority of Irish people earned their living as farmers. Today, many people still work on the land but more and more people are moving to the cities to work in factories and offices. Life in the cities is very different from life in the countryside, where things move at a quieter and slower pace.
The Irish are famous for being warm-hearted and friendly, Oscar Wilde, a famous Irish writer, once said that the Irish were “the greatest talkers since the Greeks”, Since independence, Ireland has revived(复兴) its own culture of music, language, literature and singing. Different are as have different styles of old Irish song which are sung without instruments. Other kinds of Irish music use many different instruments such as the violin, whistles, etc.
1.what does the author tell us in paragraph 1 ?
A. how the Irish fought against the English.
B. how Ireland gained independence.
C. how English rulers tried to conquer Ireland.
D. how two ”Irelands” came into being.
2.we learn from the text that in Ireland____________.
A. food shortages in the 1840s led to a decline in population
B. people are moving to the cities for lack of work in the countryside
C. it is harder to make a living as a farmer than as a factory worker
D. different kinds of old Irish songs are all sung with instruments
3.the last paragraph is mainly about____________.
A. the Irish character
B. Irish culture
C. Irish musical instruments
D. a famous Irish writer
4.what can be the best title for the text?
A. Life in Ireland B. A very difficult history
C. Ireland, past and present D. the independence of Ireland
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