We use all sort of services without thinking how we get them. But such services cost money. We pay for them through taxes. What would happen if everyone in a city stop paying taxes？ The water supply would stop. The street might not be cleaned. There would be no police force to protect people and property.
The chief duty of every government is to protect persons and proper-
ty. More than three-fourths of the money spent by our government is used for this purpose. The next largest amount of public money goes to teach and train our citizens. Billions of dollars each year are spent on schools and libraries. Public money is used to pay the teachers and other public officials.
Years ago the government made money from the sale of public lands. But most of the best public lands has now been sold. The money raised was used to help pay the cost of government. There are still some public lands that contain oil， coal， gas， and other natural products. They could be sold， but we want to save them for future years. So we all must pay our share for the services that make our lives comfortable.
从尾句可以看出文章谈论的是人们为什么都应该交税以使我们的生活更加美好。
再如③题，同学们可以通过文章的开始几句，找到文章的主题。请看
Do you have a tough math test coming up？ Then listen to some classical piano music just before the test. You might end up with a higher score.Researchers at a university in California conducted an experiment. They asked a group of college students to listen to some piano music by a famous 18th century composer before taking a math test. They were surprised to find that the students' scores jumped 8 to 9 points. The music seems to excite nerve activities in the brain； similar to the activity that occurs when a person is figuring out a math problem. However， the scientists warn that before you get too excited about applying the method to your math test， you should remember that brain exciting effects last only 10 or 15 minutes. Would rock music work as well as the piano music did？ No， the scientists say. In fact， the less complex music might even interfere with the brain's reasoning ability.
A. By selling services that make life comfortable.
B. By selling land containing oil.
C. By selling public lands.
D. By selling coal and other natural products.
① Why can classical music play a positive role in problem solving？
A. Because it stimulates your nerve activity.
B. Because it keeps you calm.
C. Because it strengthens your memory.
D. Because it improves your problem solving ability.
②What is one of the findings of the research？
A.Piano music could interfere with your reasoning ability.
B.The effects of music do not last long？
C.The more you listen to music，the higher your test scores will be.
D.Music， whether classical or rock， helps improve your memory.
（2）选项特点
这种细节判断题以辨认题居多。有可能几个选项在文章中都有所提及，但只要同学们仔细听，注意分别，就能从原文中找到出处。如上面99年6月的考题，第①题可以在文章找到The chief duty of every government is to protect persons and property，这同样也是第二段的主题句，是整段要说明的内容。第②题也能从文章找到Years ago the government made money from the sale of public lands.一句为佐证。
再如99年1月的考题，①②两题也都能从文章中找到信息句，如The music seems to excite nerve activities in the brain. 和… you should remember that brain exciting effects last only 10 or 15 minutes.。
When I was at school，my ambition was to be a pilot in the Air Force. But my eyesight wasn't good enough. So I had to give up that idea. I went to university and studied physics. I wanted to stay on there and do research， but my father died at about that time. So I thought I'd better get a job and earn my living. I started working in an engineering firm
I expected to stay in that job for a long time. But then， they appointed a new managing director. I didn't get on with him， so I resigned and applied for a job with another engineering company. I would certainly have accepted the job if they had offered it to me， but on my way to the interview I met a friend who was working for a travel agency. He offered me a job in Spain. And I've always liked Spain， so I took it.
I worked in the travel agency for two years and then they wanted to send me to South America. But I had just got married. So I decided to stay here. Then we had a baby and I wasn't earning enough to support the family. So I started giving English lessons at school in the evenings.
I liked the English teaching more than working for the travel agency， and then the owner of the school offered me a full-time job as a teacher. So I resigned from the agency. Two years later， the owner of the school wanted to retire， so he asked me to take over as the director. And here I am.
14. Why did the man give up studying physics？
15. Why did the man resign from the engineering firm？
16. Why did the man take the job at the travel agency？
17. Why did the man start to teach English part time？
