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Some people claim that staying in a place all one's life is good for one's growth, while others disagree with the view, and they prefer changing the place. Write an article to express your point of view on this topic.
You should write no less than 250 words. Write your article on ANSWER SHEET 2.


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【简答题】
Some people claim that staying in a place all one's life is good for one's growth, while others disagree with the view, and they prefer changing the place. Write an article to express your point of view on this topic.
You should write no less than 250 words. Write your article on ANSWER SHEET 2.


1542 人做过

【组合题】

1538 人做过

【组合题】
In last two years the world has seen an intensification (53) ______.
in the search for sustainable development and social (54) ______.
responsible business. A series of events, from demonstrations
at the WTO meetings in Seattle expressing dissatisfaction
for the effects of economic globalization, the terrorist attacks (55) ______.
on the WTO in New York on "9ᄋ11", corporate financial
scandals such as Enron, WorldCom and Ahold, the collapse (56) ______.
of He Argentinean economy and the Internet bubble, have
extended this search from wastern social and environmental
circles to mainstream economic and business circles across
the globe. According to Hazel Henderson, a leading thinker
on economics and development, the traditional economic (57) ______.
profession is in a state of crisis. We witness such impoverishing (58) ______.
of millions in Thailand, Indonesia and the other "tiger economies"
during the Asian meltdown, as well as in Russia, Mexico, Brazil,
and Argentina. Too often, luring people from their traditional
ways and communities into monetarized urban areas has
proved unsustainably and led to such human tragedies. (59) ______.
This criticism is recognized by an increasing number of mainstream
economists, who are "defecting" their orthodoxies. They are helping
expand the horizons of the economics profession toward a more
modest, inclusive and inter-disciplinary stance. Leading universities
and institutes like the World Bank are stepping up research (60) ______.
on alternate development indicators, accounting for "softer" (61) ______.
values such as environment, social values and general well being
of the society with a long term time horizon. These efforts reflect
much of that the notion of Gross National Happiness is all about. (62) _____.
In response to the scandals in corporate governance and the increased
call for truly responsible business leadership, the western business
community is also exploring alternatives.

1537 人做过

【组合题】Saturn For beauty and interest alike, there are few objects in the starry heavens to compare with Saturn. This magnificent planet, with the system of rings that encircles it, provides an unforgettable spectacle when it is viewed through a powerful telescope. The Saturnian system includes not only the planet and its rings, but also 11 or more satellites, or moons. To the ancients Saturn appeared to be the most insignificant of the heavenly bodies that were supposed to circle the Earth (the Sun, the Moon, Mercury, Venus, Mars, Jupiter, and Saturn) , as distinguished from the fixed stars. The glorious rings that surround the planet were invisible before the invention of the telescope in the first decade of the seventeenth century. Otherwise this magnificent crown might have saved Saturn from the sinister reputation that it once bore. Ancient astrologers maintained that it had a sinister influence upon people. Saturn is far from the center of the solar system. The mean distance of Saturn from the sun is 1,428,000,000 kilometers, or about 9.5 times the distance of the earth from the sun. The density of Saturn is very low, much lower than that of any other planet. In fact it is only about three-quarters that of water. Because of this fact some astronomers hold that Saturn is far from having reached the solid condition. Venus The beautiful white planet whose orbit lies between those of Mercury and of the Earth is called Venus after the Roman goddess of beauty. The planet is similar to our earth in size and mass. Its diameter is about 12,100 kilometers; the earth''s is 12,725 kilometers. Its mass is a little more than four-fifths that of the earth. Its density is about nine-tenths that of our planet. Venus revolves around the sun once every 225 days in an orbit that is very nearly circular. As the planet revolves, it rotates about its axis once every 243. 1 earth days, from east to west instead of in the west-to-east direction of most other celestial bodies. The planet is tilted only slightly with respect to the plane of its orbit. As it proceeds -along its orbit, Venus is sometimes on the far side of the sun from the earth, or at superior conjunction. At other times Venus is between the sun and the earth, at inferior conjunction. At superior conjunction it is quite far from earth. But at inferior conjunction it is only about 41, 840,000 kilometers away-closer than any other planet. These variations in distance result in notable differences in the apparent size of the planet as viewed from the earth, at inferior conjunction, the apparent diameter is six times greater than at superior conjunction. Venus has been explored by 15 spacecraft of which five were from the United States and ten were from the soviet Union. Some of these were orbiters, some were landers, and some were both. The planet is completely covered with opaque clouds, which make an almost perfect reflecting layer. Mercury Mercury is the nearest of the planets to the sun. It is the smallest of all and also, at certain intervals, one of the brightest. In spite of that fact, it is generally not easy to see with the naked eye. For one thing, it appears in the heavens only during the hours of twilight and dawn, when even very bright stars do not appear at their best. Besides, it is often obscured by haze near the horizon. The great Polish astronomer Nicholas Copernicus once lamented the fact that he had not been able to see Mercury at all in his many years of observation of the heavens. Perhaps this was due to the nature of the district where he lived — the low and misty region of eastern Prussia where the Vistula flows into the Baltic. Mercury makes such a small circuit around the Sun that it is always comparatively near that body. It never rises in the morning or sets in the evening much before or after the Sun. Because of its appearance sometimes in the east and sometimes in the west, some ancient peoples including the Egyptians, Hindus, and Greeks,- thought of it as two separate heavenly bodies — a morning star and an evening star. The Greeks called the morning star "Apollon" after the god of the sun, and the evening star "Hermes" , the name of the swift messenger of the gods, because the planet''s apparent motion among the stars was so swift. It is said that the Greek philosopher Pythagoras, who lived in the sixth century B. C. , was the first to recognize that the morning star and evening star were one and the same heavenly body. That fact was well known to Roman astronomers. Hermes was worshiped by the Romans under the name of Mercury. Scientists were surprised to discover that Mercury has a very thin atmosphere consisting of helium. It is so thin that the word "atmosphere" gives the wrong impression, but no such gas envelope has been expected at all. Another surprise was that Mercury has a weak magnetic field. Whether this field is produced by the planet itself or produced in some way by the solar wind — the stream of particles flowing out from the Sun — is not yet certain. But at any rate, the interior of Mercury is probably earth like in composition, with an iron core and a less dense outer crust.

1536 人做过

【组合题】Aging baby boomers are determined to fight the aging process. They spend millions of dollars a year on (31) they perceive as the best anti-aging products (32) can buy. They are being very short-sighted (33) their quest for youth. Just (34) a well-maintained car eventually breaks (35) , our bodies (36) the same. Aging is a chronic and ongoing condition we all face. Successful aging requires planning. The baby boomer generation has made (37) loud and clear that they want to remain in their homes and communities (38) they age. Yet they (39) the most important factor that will help them achieve the goal (40) age successfully at home. The home environment most boomers reside in was built for the young family. A young body (41) run the stairs, stand at the sink and get on a stool to (42) things. These are activities that become difficult or even (43) for some as they age. Falls are the number one robber of independence of the aging body. Yes, all the exercise and good nutrition cannot (44) one from falling and breaking a bone. Eventually the body slows down and (45) mobile can be an issue. It becomes hard to get into the bathroom. Many aging seniors stop taking baths because of a (46) of falling. No matter how hard we want to stay young or our bodies (47) maintain a youthful appearance, eventually we will slow down. So what is the best investment for successful aging at home? It is simple. Adjust your present living environment to meet the needs of your aging body. Many aging seniors (48) up in nursing homes or assisted living (49) their home environment could not (50) their needs.

1534 人做过

【简答题】
One day in the dead of winter, I looked out my back window and saw a chicken. It was jet-black with a crimson wattle, and it seemed unaware that it was in New York City. In classic barnyard fashion, It was scratching, pecking and clucking.
I shrugged off the apparition. Birds come and go. Usually they're pigeons, not chickens, but like other birds, this one had wings and it would probably use them. Or so I thought.
The protagonist of this story is known simply as the chicken. How it came to a small backyard here, remains a matter of conjecture. The chicken made its first appearance next door, at the home of a multitude of cabdrivers from Bangladesh. My wife, Nancy, and I figured they had bought the chicken and were fattening it for a feast. That hypothesis fell into doubt when the chicken hopped the fence and began pacing the perimeter of our yard with a proprietary air.
Eating it was out of the question. As a restaurant critic and an animal lover, I subscribe to a policy of complete hypocrisy. Serve fish or fowl to me, but don't ask me to watch the killing. Once I meet it, I don't want to eat it.
Nancy and I next theorized that the chicken had escaped from a live-poultry market about four blocks away and was on the run. Our hearts went out to the brave little refugee. We had to save it.


1534 人做过

【组合题】

1533 人做过

【组合题】音频占位符

1530 人做过

【组合题】
Throughout history there have been many unusual taxes levied on such things as hats, Beds, Baths, marriages, and funerals. At one time England levied a tax on sunlight by collection from every household with six or more windows. And according to legend, there was a Turkish ruler who collected a tax each time he dined with one of his subjects. Why? To pay for the wear and tear on his teeth!
Different kinds of taxes help to spread the tax burden. Anyone who pays a tax is said to "bear the burden" of the tax. The burden of a tax may fall more heavily on some persons than on others. That is why the three levels of government in this country use several kinds of taxes. This spreads the burden of taxes among more people. From the standpoint of their use, the most important taxes are income taxes, property taxes, sales taxes, and estate, inheritance, and gift taxes. Some are used by only one level of government; others by two or even all three levels. Together these different taxes make up what is called our tax system.
Income taxes are the main source of federal revenues. The federal government gets more than three-fourths of its revenue from income taxes. As its name indicated, an income tax is a tax on earnings. Both individuals and business corporations pay a federal income tax.
The oldest tax in the United States today is the property tax. It provides most of the income for local governments. It provides at least a part of the income for all but a few states. It is not used by the federal government.
A sales tax is a tax levied on purchases. Most people living in the United States know about sales taxes since they are used in all but four states. Actually there are several kinds of sales taxes, But only three of them are important. They are general sales taxes, excise taxes, and import taxes.
Other three closely related taxes are estate, inheritance, and gift taxes. Everything a person owns, including both real and personal property, makes up his or her estate. When someone dies, ownership of his or her property or estate passes on to one or more individuals or organizations. Before the property is transferred, however, it is subject to an estate tax if its value exceeds a certain amount.

1528 人做过

【组合题】
It takes only a tiny magnetic field to see clear through a person's head, a new study shows. A method called ultra-low field magnetic resonance imaging (MRI) has captured its first, blurry shots of a human brain, revealing activity as well as structure.
MRI scanners image the human body by detecting how hydrogen atoms respond to magnetic fields. They typically require fields of a few tesla—about 10,000 to 100,000 times stronger than the Earth's magnetic field. The powerful magnets necessary make scanners pricey and also dangerous for people with metal implants.
The new device hits a sample with a 30 millitesla magnetic field, about 100 times weaker than is normally used in MRI. The device then uses a 46 microtesla magnetic field—about the same as the Earth's magnetic field—to capture images of the sample.
The first target for the device was the head of lead researcher Vadim Zotev of Los Alamos National Laboratory in New Mexico, US.
"The cost of MRI can be reduced dramatically," Zotev says. The new set-up uses several ultra-sensitive sensors called superconducting quantum interference devices (SQUIDs), which have to be kept at very low temperatures. "The most expensive part of our system is the liquid helium cryostat, which costs about $20,000," Zotev adds.
Ultra-low field MRI scanning was first performed with a single SQUID in 2004 by a group led by John Clarke at University of California, Berkeley, US, but this only allowed objects about the size of an apple to be scanned. The new device uses seven SQUIDs and can scan much larger objects.
MRI machines in the clinic today require a patient to be slotted into a long, cylindrical tube. Ultra-low field MRI machines can be much more open. "Microtesla MRI is more suitable for surgical environment than high-field MRI," Zotev says. "Some medical equipment can be conveniently placed inside [the scanner]," including surgical robots, Zotev says.
Today's MRI machines can also be problematic for people with metal implants, since intense magnetic fields can move or heat them causing damage to surrounding tissue.
Experiments show that ultra-low field MRI can image materials even when metal is placed near the magnets.
However, ultra-low field MRI hasn't been tested on animals or people with metal implants yet. "It would be wrong to claim that it is absolutely safe," Zotev says.
Since the new device also doubles as magnetoencephalography (MEG) machine, by picking up the feeble magnetic fields from electrical activity in the brain, it could perhaps let surgeons more easily identify areas of the brain with abnormal activity, such as in epilepsy.
"This is the main advantage of the new set-up," Clarke says. "It's a nice step forward./

1526 人做过