题目内容
听力原文： Many children first learn the value of money by receiving an allowance. Parents often give their children an amount of money that they may spend as they wish. The purpose is to let the children learn from experience at an age when financial mistakes are not very costly.
A child may receive an allowance each week or each month. The amount is not so important. But parents should make clear what, if anything, the child is expected to pay for with the money.
At first, young children may spend all of their allowance soon after they receive it. If they do this, they will learn the hard way that spending must be done within a budget. Parents should not offer more money until the next allowance is to be paid.
Older children may be responsible enough to budget larger costs like those for clothing. The object is to show young people that a budget demands choices between spending and saving.
And paying children to do extra work around the house can be useful. It can even provide an understanding of how a business works.
Allowances give children a chance to experience the three things they can do with money. They can share it with others. They can spend it by buying things they want. Or they can save it.
Saving helps children understand that costly goals require sacrifice: you have to cut costs and plan for the future.
(33)
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Close human ties may make life longer, but not fuller.
M: Yes. The last thing we want is to cause inconvenience to the general public. Our quarrel is not with the general public, it is with the employers and the government.
Q: What does the man mean？
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Imagine eating everything delicious you want -with none of the fat. That would be great, wouldn't it？
New "fake fat" products appeared on stone shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients (营养物) and can also cause unpleasant side effects in some people. So it's up to consumers to decide whether the new fat-free products taste good enough to keep eating.
Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can't be digested at all.
Normally, special chemicals in the intestines (肠) "grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids.
The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream.
OIestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it's that ability to slide unchanged through the intestines that makes olestea so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestras can prevent vitamins A, D, E and K from being absorbed. It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc.
Manufacturers are adding vitamins A, D, E and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.
we learn from the passage that olestra is a substance that ______.
听力原文：W: Have you bought the mobile phone you've ever talked about with me？
M: I've found a good one for eighty dollars at the supermarket. But the next Sunday they will be on special for sixty-five dollars. I would save fifteen dollars if I wait.
Q: How much would the man pay if he bought now？
(16)
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