B

　　"The price of books for our students is just getting higher and higher and higher and, along with the rising cost of tuition (学费), it's killing these students," said Peter Jason, a college professor. "Remember, students are one of the poorest groups of people in America. Almost half of them have at least one part-time job. In fact, one of my students has three jobs. And she still manages to have high scores and go to school full-time."

　　Textbook prices are usually high. Adding to that problem, many college teachers change textbooks year after year, they either upgrade to a new edition (版本) or change to a different textbook. This further hurts students because if a teacher no longer uses a textbook, that book has no resale value.

　　Dr. Jason decided to make life a little easier and a lot cheaper for his students by writing his own book on public speaking. "Many books have an increased price because of CD-ROMs, lots of color photographs and pictures. I talked to my students, and many of them, like me, prefer to keep things simple. So, a few years ago, I wrote my own textbook. I made sure that it was simple. Compared to most of other public speaking books, mine is half the number of pages, and one-third the price. That is $30 instead of $90. When I wrote a second edition last year, students only had to buy the 35 new pages. For only $7.00, they had almost a new book."

　　4. What did Dr. Jason say about students at college?

　　A. They are short of money.

　　B. They need simple books.

　　C. They have no part-time jobs.

　　D. They are trying to get high scores.

　　5. What does "that problem" in Paragraph 2 refer to?

　　A. The high prices of textbooks.

　　B. The low resale value of books.

　　C. Too many different new books.

　　D. No color pictures in textbooks.

　　6. What did Dr. Jason decide to do to help the students?

　　A. To choose cheaper textbooks.

　　B. To write a textbook himself.

　　C. To speak to his students

　　D. To use old textbooks.

　　7. How much does a public speaking book usually cost?

　　A. About 7 dollars.

　　B. About 30 dollars.

　　C. About 37 dollars.

　　D. About 90 dollars. 

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