单选题Questions 11～13 are based on the following story about a robbery. You now have 15 seconds to read Questions 11～13.

单选题Police in the popular resort city Virginia Beach recently began operating video surveillance cameras with controversial face recognition technology. Virginia Beach and Tampa in Florida two cities in the United States acquired the technology, which cost them $197,000. "Before we switched it on, we went through an extensive public education process with hearings and the involvement of citizen groups and minority groups, who helped write the policies we are using," said deputy police chief Greg Mullen. A citizens" auditing committee has the fight to perform unannounced spot checks on police headquarters to make sure the technology is not being misused. Three of the city"s 13 cameras are linked full time to the face recognition system, though the others can be activited as needed. The database of wanted people is updated every day. So far, the system has failed to produce a single arrest, though it has generated a few false alarms. It works by analyzing faces based on a series of measurements, such as the distance from the tip of the nose to the chin or the space between the eyes. Critics say it is highly inaccurate and can be easily fooled. Mullen, who sees the system eventually being linked to the databases of other city, state and federal law enforcement agencies to track criticals and suspected terrorists, said, "The system doesn"t look at skin color or your hair or your gender. It takes human prejudices out of the equation. " "This technology has little or no effect on the crime rate but it does have an effect on people"s behavior. People feel cowed," said Bruce Steinhardt, who directs the technology. Despite the fact that tests have shown faces recognition only works in around 30% cases, the ACLU is alarmed that the technology may soon spread to airports. The organization also fears it could potentially be used to monitor individual"s political activities to harass law-abiding citizens. "This kind of surveillance should be subject to the same procedures as wiretaps. Law enforcement agencies should justify why they need it and it should be tightly limited, otherwise it will soon become a tool of social control," said Mihir Kshisagar of the Electronic Information Privacy Center. Nor does such criticism come exclusively from the political left. Lawyer John Whitehead, founder of the conservative Rutherford Institute, wrote in an editorial that the technology threatened the right of each U.S. citizen to participate in society. "After all, that is exactly what constant surveillance is—the ultimate implied threat of coercion," he wrote.

单选题Whoaretheytalkingabout?[A]Aman.[B]Awoman.[C]Asmallchild.

单选题Questions 11--13 are based on the following talk about cloning. You now have 15 seconds to read Questions 11-13.

单选题What is the author's attitude towards eavesdropping?

单选题Besides climate change, developing countries like China need to deal with energy (21) and environmental issues: the development of sources of clean energy needs to be (22) line with their interests. Clean energy has been given greater prominence than ever before; it is seen as a new industrial (23) and (24) of economic growth for the new century. The time for clean energy has come. In China, clean energy is moving ahead at full speed. Take wind power as an example: by the end of last year, China had (25) wind power generating capacity of 12.21 GW, making China the largest wind power generator in Asia and fourth in the world. But according to the research, one-third of wind power capacity is running (26) due to an inability to get the power to the national (27) . India-like China—relies (28) on coal for its energy needs. This will only change if the funds and technology to develop clean energy, such as wind and nuclear power, are (29) . India will not choose clean energy (30) . Nuclear power is currently the most (31) of clean energy sources. (32) , if it is to be (33) on a large scale by developing nations, technological advances will be needed to make it competitive with coal. Compared (34) developed countries, developing countries have more (35) choices when it comes to energy structure. Promoting economic growth requires (36) energy—and coal, the cheapest and most (37) source of energy for many countries—is the (38) choice. Cheap coal means cheap electricity and a competitive economy. Rising electricity prices would cause public (39) and impact on standards of (40) .

单选题I received her mother's call at eleven, ______ that she was badly hurt in an accident yesterday. A. Then did I know B. Only then I knew C. Only then did I know D. Only then knew I

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单选题Questions 14～17 are based on the following monologue introducing the origin of an expression. You now have 20 seconds to read Questions 14～17.

单选题We can infer from Paragraph 5 that

单选题Which of the following is closest in meaning to the phrase the only game in town"(Line 3, Par