The number of Congressmen from each state varies depending on （）

A:the size of the area B:the size of the population C:the tradition D:the wealth

Locked in a vault within the North Carolina Department of Revenue is a bit of Kafka: a government-issued stamp that is expected to remain unpurchased, but which users of illegal goods must, by law, affix to substances they are not allowed to possess.
North Carolina is one of about 20 states that tax illegal drugs. The cost varies by state and weight, as does the stamps’ appearance (Nebraska’s, with a skull surmounting a syringe and joint, looks like Grateful Dead tribute art). Penalties for non-payment also vary, from being classed as a misdemeanour in Georgia to 200% of the tax plus $10,000 or five years in prison in Louisiana.
Few, if any, drug users actually buy the stamps. Most of those sold in Kansas, for instance, go to collectors. And according to a Mobile newspaper, the director of investigations for Alabama’s revenue department said the state never expected actually to sell stamps to drug users. Instead, the tax exists to further punish those arrested for possession by making them liable to penalties for tax evasion if their drugs are stampless, as they almost invariably are. And those penalties can be lucrative: over the past decade Kansas has collected $10.3m.
If legislators feel that drug users get off too lightly, they could simply increase the criminal penalties, rather than creating a new class of crime that requires the involvement of another government agency. As it is, these laws are not merely complicated, but have often been found unconstitutional.
In 1994 the US Supreme Court ruled that because Montana’s illegal-drug tax was a second punishment for a single crime it amounted to double jeopardy. Other states’ drug-tax schemes have also been challenged on constitutional grounds. In response some states have abolished or modified their schemes, usually by allowing buyers of the stamps to remain anonymous or by forbidding revenue departments from telling law enforcement when someone buys the stamps.
The concept of taxing illegal drugs punitively dates back to the Marijuana Tax Act of 1937. This did not ban the drug completely; it subjected anyone who dealt in it commercially to a nominal tax but a heavy array of regulations and criminal penalties for non-compliance. Bureaucracy lives on.
Which of the following is true according to the text

A:The cost varies, because of the state, weight or the stamps’ appearance. B:For non-payment, the only penalty is to impose a fine. C:Only few drug users buy the stamps. D:The Department of Revenue wants to sell stamps to drug users and collectors.

Passage Three
If you are like most people, your intelligence varies from season to season. You are probably a lot sharper in the spring than you are at any other time of the year. A noted scientist, Ellsworth Huntington(1876-1947),concluded from other men’s work and his own among peoples in different climates that climate and temperature have a definite effect on our mental abilities.
He found that cool weather is much more favorable for creative thinking than is summer heat. This does not mean that all people are less intelligent in the summer than they are during the rest of the year. It does mean, however, that the mental abilities of large numbers of people tend to be lowest in the summer.
Spring appears to be the best period of the year for thinking. One reason may be that in the spring man’s mental abilities are affected by the same factors that bring about great changes in all nature.
Fall is the next-best season, then winter. As for summer, it seems to be a good time to take a long vacation from thinking!

According to the passage, your intelligence probably（）

A:stays the same throughout the year B:varies from day to day C:changes with the seasons D:changes from year to year

Passage Four
Most cities and/or states in the U. S. collect a sales tax on almost everything you buy. You must ask when you move into a new community how much the local sales tax is, and what items are and are not taxable. Both taxable items and the amount of tax vary considerably from place, from one of two percent in some places up to eight or ten in others. The New York City sales tax, for examples, is currently 8% , so if you buy a pair of $40 shoes you will actually have to pay $43.20. This makes paying and getting correct change much more difficult ( not to mention making .everything more expensive). We say in America that only two things in life are unavoidable: one is death and the other taxes.
Another thing that makes money exchanges more complicated is tipping. The Chinese people have happily put an end to tipping, but Westerners are still plagued with this indignity. Waiters and waitresses, cab drivers, hotel bellboys, barbers and hairdressers and all sorts of other people must be tipped. Their employers give them low wages because it is expected that you, the customer, will make up the difference. If you don’ t, the service person can’ t earn a living. Tipping also varies from place to place, generally in the area of 15% of your bill (before taxes), but again you should ask local residents whom to tip and how much.
There is another kind of tipping as well. You are generally expected to give something ( either cash or a bottle of whisky) to the mailman and to your building "super" at Christmas time. You should discuss this also with neighbors and colleagues.

According to the passage, which of the following statements is true（）

A:The Chinese people have to pay tips in western countries. B:The westerners don' t have to pay high tips in their own country. C:Barbers, hotel bellboys and all sorts of other people can earn a living if they are not tipped. D:Tipping varies from place to place, generally in the area of 20% of your bill.

Every person's usual temperature varies ______ the time of days.

A:from B:in C:to D:with

Passage Four Most cities and/or states in the U. S. collect a sales tax on almost everything you buy. You must ask when you move into a new community how much the local sales tax is, and what items are and are not taxable. Both taxable items and the amount of tax vary considerably from place, from one of two percent in some places up to eight or ten in others. The New York City sales tax, for examples, is currently 8% , so if you buy a pair of $40 shoes you will actually have to pay $43.20. This makes paying and getting correct change much more difficult ( not to mention making .everything more expensive). We say in America that only two things in life are unavoidable: one is death and the other taxes. Another thing that makes money exchanges more complicated is tipping. The Chinese people have happily put an end to tipping, but Westerners are still plagued with this indignity. Waiters and waitresses, cab drivers, hotel bellboys, barbers and hairdressers and all sorts of other people must be tipped. Their employers give them low wages because it is expected that you, the customer, will make up the difference. If you don’ t, the service person can’ t earn a living. Tipping also varies from place to place, generally in the area of 15% of your bill (before taxes), but again you should ask local residents whom to tip and how much. There is another kind of tipping as well. You are generally expected to give something ( either cash or a bottle of whisky) to the mailman and to your building "super" at Christmas time. You should discuss this also with neighbors and colleagues.

According to the passage, which of the following statements is true（）

A:The Chinese people have to pay tips in western countries. B:The westerners don' t have to pay high tips in their own country. C:Barbers, hotel bellboys and all sorts of other people can earn a living if they are not tipped. D:Tipping varies from place to place, generally in the area of 20% of your bill.

If you are like most people, your intelligence varies from season to season. You are probably a lot sharper in the spring than you are at any other time of the year. A famous scientist concluded that climate and temperature have a definite effect on our mental abilities, and that cool weather is much more favourable for creative thinking than in summer heat. This does not mean all people are less intelligent in the summer than they are during the rest of the year. It does mean, however, that the mental abilities of large members of people tend to be lowest in the summer. Spring appears to be the best period of the year for thinking. One reason may be that in the spring man’s mental abilities are affected by the same factors that bring about great changes in all nature. Autumn is the next best season, then winter. As for summer, it seems to be a good time to take a long vacation from thinking.

According to the passage，your intelligence probably （）

A:varies from month to month B:remains tile same all the year round C:varies with the seasons D:changes without stopping

Passage Three If you are like most people, your intelligence varies from season to season. You are probably a lot sharper in the spring than you are at any other time of the year. A famous scientist concluded that climate and temperature have a definite effect on our mental abilities, and that cool weather is much more favourable for creative thinking than in summer heat. This does not mean all people are less intelligent in the summer than they are during the rest of the year. It does mean, however, that the mental abilities of large members of people tend to be lowest in the summer. Spring appears to be the best period of the year for thinking. One reason may be that in the spring man’s mental abilities are affected by the same factors that bring about great changes in all nature. Autumn is the next best season, then winter. As for summer, it seems to be a good time to take a long vacation from thinking.

According to the passage，your intelligence probably （）

A:varies from month to month B:remains tile same all the year round C:varies with the seasons D:changes without stopping