题目内容

B
In the United States, boys and girls start school when they are five years old. In some states they must stay in school until they are sixteen. Most students are seventeen years old when they graduate from secondary school (中学). Another name for secondary school is high school.
Most children go to public elementary schools (小学) and secondary schools. The par- ents of public school pupils do not have to pay directly for these children's education be- cause tax money supports the public schools. If a child attends a private school, his parents pay the school for the child's education.
Today about half of the high school graduates go on to colleges and universities. Some colleges and universities receive tax money from the government. A student at a state university does not have to pay much if his parents live in that state. Private colleges and universities are expensive, however. Almost half of college students in the United States work while they are studying. When a student's family is not rich, he has to earn money for part of his college expenses.
Students in State Universities______if their parents live in that state.
[A] pay less
[B] cost less
[C] pay more
[D] cost more

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The erosion of the white cliffs in the south of England
[A] will soon become a problem for people living in central England
[B] has now become a threat to the local residents
[C] is quickly changing the map of England
[D] can be stopped if proper measures are taken

[A] on
[B] at
[C] by
[D] with

It is not feasible to build sea defenses to protect against erosion because
[A] it is too costly and will endanger neighboring areas
[B] the government is too slow in taking action
[C] they will be easily knocked down by waves and currents
[D] house agents along the coast do not support the idea

C
It doesn't matter when or how long a person sleeps, but everyone needs some rest to stay alive. That's what all doctors' thought, until they heard about Jercy Page. Jercy Page, it was said, never slept. Could this be true？ The doctors decided to see this strange man by themselves.
Jercy Page was ninety years old when the doctors came to his home in New Jersey. They thought for sure that he got some sleep of some kind. So they stayed with him and watched every movement he made. But they were surprised. Though they watched him hour after hour and day after day, they never saw Jercy Page sleeping. Actually, he did not even own a bed. He never needed one.
The only rest that Jercy Page got was sitting in a comfortable chair and reading newspapers. The doctors were puzzled by this strange continuous sleeplessness. They asked him many questions, hoping to find an answer. They found only one answer that might explain his condition. Page remembered some talk about his mother having been injured several days before he was born. But that was alt. Was this the real reason？ No one could be sure.
The main idea of this passage is that______.
[A] large numbers of people do not need sleep
[B] a person was found who actually didn't need any sleep
[C] everyone needs some sleep to stay alive
[D] people can live longer by trying not to sleep