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听力原文：W: You know those bananas in the cupboard？ Well , Willy's eaten the whole lot.
M: What？ Are you kidding？
W: No, I'm serious. And new she says she feels sick.
M: Well, it serves her fight for being so greedy.
What does the man mean？
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What does the woman say has made her job easier？
The gravitational pull of the Earth and moon is important to us as we attempt to conquer more and more of outer-space. Here's why.
As a rocket leaves the Earth, the pull of the Earth on it becomes less and less as the rocket roars out into space. If you imagine a line between the Earth the pull of the Earth and the moon, there is a point somewhere along that line, nearer to the moon than to the Earth, at which the gravitation pull of both the Earth and the moon on an object is just about equal. An object placed on the moon side of that point would be drawn to the moon. An object placed on the Earth side of that point would be drawn to the Earth. Therefore, a rocket need be sent only to this "point of no return" in order to get it to the moon. The moon's gravity will pull it the rest of the way.
The return trip of the rocket to Earth is, in some ways, less of a problem. The Earth's gravitational field reaches far closer to the moon than does the moon's to Earth. Thus it will be necessary to fire an Earthbound rocket only a few thousand miles away from the moon to reach a point where the rocket will drift to earth under the Earth's gravitational pull.
The problem of rocket travel is not so much concerned with getting the rocket into space as it is with guiding the rocket after it leaves the Earth's surface. Remember that the moon is constantly circling the Earth. A rocket fired at the moon and continuing in the direction in which it was fired would miss the moon by a wide margin and perhaps continue to drift out into space until "captured" in another planet's gravitational field. To reach the moon, a rocket must be fired toward the point where the moon will be when the rocket has traveled the required distance. This requires precise calculations of the speed and direction of the rocket and of the speed and direction of the moon.
For a rocket to arrive at a point where the moon's gravity will pull it the rest of the way, it must reach a speed called velocity of escape. This speed is about 25,000 miles per hour. At a speed less than this, a rocket will merely circle the Earth in an orbit and eventually fall back to Earth.
This passage deals mainly with ______.
This may sound like a fantastic proposal, but so, I think, our insurance system would have sounded to people a hundred years ago. The main objection to such a scheme would be that if each person were entitled to receive minimum support, people would not work. This assumption rests on the fallacy of the inherent laziness. In human nature, actually, aside from abnormally lazy people, there would be very few who would not want to earn more than the minimum, and who would prefer to do nothing rather than work.
However, the suspicions against a system of guaranteed subsistence minimum are not groundless from the standpoint of those who want to use ownership capital for the purpose of forcing others to accept the work conditions they offer. If nobody were forced to accept work in order not to starve, work would be sufficiently interesting and attractive in order to induce one to accept it. Freedom of contract is possible only if both parties are free to accept and reject if; in the present capitalist system this is not the case.
But such a system would not only be the beginning of real freedom of contract between employers and employees, its principal advantage would be the improvement of freedom in interpersonal relationships in every sphere of daily life.
People used to think that poverty and unemployment were due to ______.
In addition to redistributing incomes, inflation may affect the total real income and production of the community. An increase in prices is usually associated with high employment. In moderate inflation, industries are operating efficiently and output is near capacity. There is a great deal of private investment and jobs are plentiful. Such has been the historical pattern. Thus many business persons and union leaders, in evaluating a little deflation and a little inflation, consider the latter to be the lesser of two evils. In mild inflation, the losses to fixed-income groups are usually less than gains to the rest of the community. Even worker with relatively fixed wages are often better off because of improved employment opportunities and greater take-home pay, a rise in interest rates on new securities may partly compensate for any losses to creditor, and increases in pension benefits may partly make losses to retirees.
In deflation, on the other hand, the growing unemployment of labor and capital causes the community's total well-being to be less; so in a sense, the gainers get less than the losers lose. As a matter of fact, in a depression, or a time of severe deflation, almost everyone suffers, including the creditor who is left with uncollectible debts.
For these reasons as increase in consumption of investment spending is considered good in times of unemployment, even if this tends to increase prices slightly. When the economic system is suffering from severe depression, few people will criticize private or public spending on the ground that this might be inflationary. Actually, most of this increased spending will increase production and create jobs. Once, full employment and full plant capacity have been reached, however, any further increases in spending are likely to be completely wasted in prices increase.
"Historical patterns" mentioned in the passage means that in mild inflation ______.
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