题目内容
The average college student in America spent an estimated seven hundred dollars on textbooks last year. The National Association of College Stores reported more than five billion dollars in sales of textbooks and course materials. Association spokesman Charles Schmidt says electronic textbooks now represent just two to three percent of sales. But he says that is expected to reach ten to fifteen percent by 2012. Online versions are now available for many of the most popular college textbooks. E-textbooks can cost half the price of a new print textbook. But students usually lose access after the end of the term. And the books cannot be placed on more than one device (装置) so they are not easy to share.
So what do students think of e-textbooks? Administrators at Northwest Missouri State University wanted to find out. Earlier this year they tested them with five hundred students in twenty classes. The university is unusual. It not only provides laptop computers to all seven thousand of its full-time students. It does not require students to buy their textbooks either. They rent them to save money. The school aims to save even more by moving to e-textbooks. The students in the survey reported that downloading the books from the Internet was easy. They liked the idea of carrying lighter backpacks. And fifty-six percent said they were better able to find information. But most found that using e-textbooks did not change their study habits. And sixty percent felt they read more when they were reading on paper. In all, almost half the students said they still liked physical textbooks better. But the survey found that cost could be a big influence. Fifty-five percent said they would choose e-textbooks if using them meant their textbook rental fee would not increase. Roger Von Holzen heads the Center for Information Technology in Education at Northwest Missouri State. He tells us that administrators are disappointed with the e-textbooks now available because the majority are not interactive. He thinks growth will come when more digital books include video, activities, games and other ways to interact with the information. The technology is improving. But for now, most of the books are just words on a screen.
1.The passage mainly tells us about ________.
A.the development of e-textbooks |
B.different attitudes towards e-textbooks |
C.the sales of textbooks and course materials |
D.the differences between e-textbooks and physical text-books |
2.According to the survey, over half of the students think e-textbooks ________.
A.can be rented for less money |
B.help in finding more information |
C.are convenient to carry around |
D.help them do better in their lessons |
3.It can be inferred from the passage that e-textbooks ________.
A.will replace physical textbooks |
B.are available at any time |
C.have a very bright future |
D.still have a lot to improve |
1.B
2.B
3.D
【解析】
1.文章在第四段就提到了学生对电子书的看法, 下文围绕第四段展开,故 B 项正确。
2.根据文章第六段最后一句可知 B 项正确。
3.根据文章最后一段可知电子课本仍有待提高改进。
A study led by Professor Mark Weiser of Tel Aviv University and the Sheba Medical Center at Tel Hashomer Hospital has determined that young men who smoke are likely to have lower IQs than their non-smoking peers (同龄人). Tracking 18-to 21-year-old men enlisted in the Israeli army in the largest ever study of its kind, he has been able to demonstrate an important connection between the number of cigarettes young males smoke and their IQ.
The average IQ for a non-smoker was about 101, while the smokers’ average was more than seven IQ points lower, at about 94, the study determined. The IQs of young men who smoked more than a pack a day were lower still, at about 90. An IQ score in a healthy population of such young men, with no mental disorders(心理疾病), falls within the range of 84 to 116.
An addiction that doesn’t discriminate(歧视)
“In the health profession, we’ve generally thought that smokers are most likely the kind of people who have grown up in difficult neighborhoods, or who’ve been given less education at good schools,” says Weiser, whose study was reported in a recent version of the journal, Addiction, “But because our study included subjects with various socio-economic backgrounds, we’ve been able to rule out socio-economics as a major factor. The government might want to rethink how it arranges its educational resources on smoking.
Making the results more significant, the study also measured effects in twin brothers. In the case where one twin smoked, the non-smoking twin registered a higher IQ on average.
Although a lower IQ may suggest a greater risk for smoking addiction, the representing data on IQ and smoking found that most of the smokers investigated in the study had IQs within the average range, nevertheless.
In the study, researchers took data from more than 20,000 men before, during and after their time in the military. All men in the study were considered in good health, since pre-screening(筛选的)measures for suitability in the army had already been taken. The researchers found that around 28 percent of their samples smoked one or more cigarettes a day, 3 percent considered themselves ex-smokers, and 68 percent said they never smoked.
“People on the lower end of the average IQ tend to display poorer overall decision-making skills when it comes to their health,” says Weiser. He adds that his finding can help address serious concern among heath counsellors at grade and high schools.
1.The study led by Professor Mark Weiser shows that .
A.the IQ of smoking males is lower than that of non-smokers |
B.the IQ of smoking males is higher than that of non-smokers |
C.the IQ of smoking males is the same as that of non-smokers |
D.the IQ of smoking males is higher than that of female smokers |
2.According to the passage, a smoking man’s IQ is most likely to be .
A.101 |
B.94 |
C.80 |
D.120 |
3.What can be learned from the passage?
A.People in the military are more likely to become smokers than other people. |
B.Most heavy smokers are found to have mental problems. |
C.Socio-economic backgrounds have nothing to do with smoking behaviour. |
D.People with lower IQs tend to be less good at controlling their addiction to smoking. |
4.What is the meaning of the underlined part “An addiction that doesn’t discriminate”?
A.Smokers do not believe their IQ is affected by being addicted to smoking. |
B.All people, no matter what their background, can become addicted to smoking. |
C.Smoking is an addiction, and we must not discriminate against smokers. |
D.The addiction to smoking is difficult to get rid of. |