题目内容
（请给出正确答案）
A. the star moved away from the sun
B. another star happened to come near the sun
C. fhe sun and the moon raised the tides on the earth
D. a large tidal wave of a star travelled over the surface of the sun
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更多“Some two thousand million year…”相关的问题
These proportions vary somewhat from one area of the nation to another. In all areas, however, families are the fastest-growing sector of the homeless population, and in the Northeast they are by far the largest sector already. In Massachusetts, three-fourths of the homeless now are families with children; in certain parts of Massachusetts—Attleboro and Northampton, for example—the proportion reaches 90 percent. Two thirds of the homeless children studied recently in Boston were less than five years old.
Of the estimated two to three million homeless people nationwide, about 500,000 are dependent children, according to Robert Hayes, counsel to the National Coalition for the homeless. Including their parents, at least 750,000 homeless people in America are family members.
What is to be made, then, of the supposition that the homeless are primarily the former residents of mental hospitals, persons who were carelessly released during the 1970s？ Many of them are, to be sure. Among the older men and women in the streets and shelters, as many as one-third (some believe as many as one-half) may be chronically disturbed, and a number of these people left mental hospitals during the 1970s. But in a city like New York, where nearly half the homeless are small children with an average of six, to operate on the basis of such a supposition makes no sense. Their parents, with an average age of twenty-seven, are not likely to have been hospitalized in the 1970s, either.
According to the statistics, among the homeless in New York there were ______.
A．more people in a families than single persons
B．about six thousand families
C．3 children in a family
D．more families with two parents than one
(41)
A．by
B．in
C．for
D．with
Recently the attack on illiteracy has been stepped up. A world plan has been drawn up by a committee of UNESCO experts in Paris, as part of the United Nations Development Decade, and an international conference on the subject has also been held. UNESCO stresses that functional literacy is the aim. People must learn the basic skills of responsible citizenship: the ability to read notices, newspapers, timetables, letters, price lists, to keep simple records and accounts, to sort out the significance of the information gathered, and to fill in forms.
The major areas of illiteracy are in Asia, and Central and South America. In Africa there are at least one hundred million illiterates, making up eighty to eighty-five per cent of the total population. In Europe the figure is about twenty-four million, most of them is Southern Europe, with Spain, Italy, Portugal, and Yugoslavia heading the list (the United Kingdom has about seven hundred thousand).
According to the estimate, the illiterate population in the world is ______.
A．two hundred and fifty million
B．one hundred million
C．about half of the total population in the world
D．seven thousand million
Both games had been invented a thousand years before. In the first kind of football game ever played, all the men from one village tried to kick a ball into another village. The men of the second village tried to kick the ball into the first. Hundreds of people joined in, running everywhere, running crops and knocking down fences. In time, people agreed on some rules to keep order, but many roles were left open to change. Different rules developed in different places.
When the two colleges met to play football, each followed its own rules. They mixed the games together and invented a new game. A hundred years later we call that game American football.
In what ways do you suppose the game we know now will have changed in another hundred years？
When the two colleges first met to play "football", the players followed ______.
A．the rules of soccer
B．the rules of rugby
C．different rules
D．college rules
"With the price of gasoline and with the problems with clean air, it's important we get electric vehicles out on the road."
On California roads there are about two thousand electric cars. By 2003, ten percent of all new cars may be required to have zero emissions. This is a mandate automakers say it is way ahead of its time.
Gloria Bergquist of the Alliance of Auto Manufacturers says, "The technology (for zero emissions) isn't here yet; it still needs advancement in driving range to make it more appealing to a wider consumer audience".
Automakers blame it on the batteries. Power runs out on most cars after about 70 miles. However, some cars can now go more than 100 miles on a charge. Batteries are expensive. Carmakers say there is nothing they can do about it.
Tim Carmichael of the Clean Air Coalition says, "The automakers have not built a vehicle unless required to do so, so it's very important for the state to stay committed to this program requiring automakers to build small amounts in beginning years and then the market will take off".
When did Michael Schwabe say goodbye to the gas pump？
A．Two days ago.
B．Two months ago.
C．Two years ago.
D．Ten years ago.
(77) An elephant uses its long, pointed tusks as tools for digging in the ground for food. He also uses them as weapons in combat.
The tusks of male elephants are usually large and heavy. In Africa, female elephants have long, light tusks. In India and other parts of southern Asia, female elephants have small, short tusks or none at all.
(78) Tusks in good .condition are in great demand, and may sell for as high as two thousand dollars or more. Because of this, large numbers of elephants have been killed. Some countries have initiated (开始) methods of trying to protect elephants. They have established elephant preserves, or areas of land set aside for herds of elephants where no one is allowed to harm them. Elephants on the preserves are safe from ivory hunters.
Female elephants in India and southern Asia have ______
A．large and heavy tusks
B．small and short tusks or not any teeth at all
C．small and short tusks
D．long and light tusks
A.Two hundreds and eight hundreds is one thousands
B.Two hundreds and eight hundreds is one thousand
C.Two hundred and eight hundred is one thousand
We believe, however, that some two thousand million years ago, another star wandering through space, happened to come near our sun. Just as the sun and the moon raise tides on the earth, so this star must have raised tides on the surface of the sun. But they were very different from the small tides that are raised in our oceans; a large tidal wave' must have travelled over the surface of the sun, at last forming a mountain so high that we cannot imagine it. As the cause of the disturbance (动荡) came nearer, so the mountain rose higher and higher. And before the star began to move away again, its tidal pull had become so powerful that this mountain was torn to pieces and threw off small parts of itself into space. These small pieces have been going round the sun ever since. They are the planets (行星).
Millions of stars are______.
A．following a regular path in space
B．always travelling together
C．seldom wandering about in the universe
D．moving about without a fixed course
