[单项选择]The" paradoxes" in the passage mean______


A. unusual situations.
B. difficult puzzles.
C. abnormal conditions.
D. self-contradictions.

[单项选择]The" paradoxes" in the passage mean______


A. unusual situations.
B. difficult puzzles.
C. abnormal conditions.
D. self-contradictions.

[单项选择]What does the passage imply

[单项选择]The passage is mainly about


A. computer crimes
B. banking via computer
C. computer errors
D. computer businesses

[单项选择]

Passage One
Electronic books could revolutionize reading, but people ought to consider their far-reaching impacts as well. "The e-book promises to wreak a slow havoc (浩劫) on life as we know it," Jason Ohler, professor of technology assessment (评估), university of Alaska Southeast In Juneau, warned the World Future Society, Bethesda, Md. His assessment weighed the pros and cons (赞成和反对的理由) of e-book technology’s impact on social relationships, the environment, the economy, etc. Before you curl up (蜷曲) with an e-book, consider the disadvantages.
They increase eyestrain due to poor screen resolution, replace a relatively cheap commodity with a more expensive one, and displace workers in print book production and traditional publishing. E-books make it easy to share data, thereby threatening copyright agreements and reducing compensation of authors, as well as creating nonbiodegradable (不可生物降解的) trash.
On the other hand, e-books save paper
A. They are unable to be broken down into harmless products.
B. They consume a lot of natural resources.
C. They produce harmful gases.
D. They are capable of being reused.

[单项选择]What is implied in the passage


A. Tourists now have more access to reliable information about travel risks.
B. The State Department now provides more information for travelers on its web site.
C. Tourists face a world of dangers but, with the right advice, can manage most of them.
D. The State Department is sometimes binned for not providing travelers with enough information.

[单项选择]What is this passage mainly about


A. Call on people to protect sharks.
B. Point out the living environment of sharks.
C. Explain why the sharks are dangerous.
D. An introduction to sharks.

[单项选择]What is the passage mainly about


A. Why education must be offered about AIDS.
B. How to achieve the aims of AIDS courses.
C. Risks associeted with AIDS.
D. Social responses to AIDS.

[单项选择]What does this passage mainly discuss


A. The scarcity of manufactured goods.
B. The value of scarce materials.
C. The manufacturing of scarce goods.
D. The cost of producing shoes.

[单项选择]What does the passage mainly discuss


A. Civil and criminal trial courts.
B. Typical court cases.
C. The court system iii the United States.
D. The appeal court process.