单选题. A surge in gun-safety classes is occurring as states relax laws regarding carrying guns. A growing number of people—many of them women—are acquiring guns for self-protection, says Don Cates, a retired professor at the Saint Louis University School of Law who has studied the issue of gun control extensively. Cares says increased interest from women is a significant factor. "Women used to be told that owning a gun is a man's thing." Cates says. "That is not the case anymore because women are being told that they should be able to defend themselves." The issue of gun rights has jumped back into the spotlight after two recent mass shootings—the July 20 assault on an Aurora. Colo., movie theater that killed 12 and Sunday's attack on a Sikh temple in Wisconsin that left 7 dead, including the gunman. To accommodate the increased number of students attending gun classes, the National Rifle Association has certified 5,000 additional instructors since April 2011, adding to the almost 150,000 instructors already working. Greg Block, a law enforcement instructor for city, county, state and federal agencies, says he has noticed a "dramatic" increase in class attendance since 2008. He says he now instructs about 100 individuals per month. Last November, Wisconsin became the 49th state to allow people to carry concealed weapons, leaving Illinois the only state to forbid the practice, says Bill Brassard. director of communications at the National Shooting Sports Foundation. Caroline Brewer, spokeswoman for the Brady Campaign to Prevent Gun Violence, says carrying guns in public endangers more lives than it saves. "No matter how much gun training an average American might have, it pales in comparison to the rigorous gun training that we demand of law enforcement officers, and thousands of innocent Americans die every year because of the paranoid (偏执) mentality and lack of meaningful training," she says. Patrick Egan, an assistant professor of politics at New York University, says the USA is actually at an all-time low for per-capita gun ownership. In the 1970s, one in two households had a gun; now it's about one in three. "Our attention is drawn to violence and gun ownership in the wake of these big shootings," he says. "But it shouldn't lead us to lose sight of the fact that we're also in a time when gun violence is at 40-year lows." Massacres such as the ones in Colorado and Wisconsin "tend to be followed by a legitimate surge in fear of gun violence and a surge of interest in guns and gun safety—and probably gun ownership," Egan says. Such increases tend to disappear in the face of long-term gun-ownership trends.1. What does Cares say about the gun issue?

单选题. Questions 5 to 8 are based on the conversation you have just heard.5.

单选题Questions 1 to 10 are based on the following passage.The Arctic is in a death spiral.The top of our world is____1____up faster than anywhere else on the planet,____2____new records for the speed and a

单选题. Questions 12 to 15 are based on the passage you have just heard.4.

单选题8. This new laser printer is ______ with all leading software.

单选题Questions 1 to 5 are based on the following passage.Once it was possible to define male and female roles easily by the division of labour.Men worked outside the home and earned the income to support t

单选题. Questions 16 to 19 are based on the recording you have just heard.1.

单选题. Questions 1 to 4 are based on the conversation you have just heard.1.

单选题《复合题被拆开情况》 Born from the accessibility of mass air travel, modern international tourism has been popularized as "holiday-making" in regions that offer comparative advantages of sand, sun and sea. Trav

单选题. Questions 9 to 11 are based on the passage you have just heard.1.

单选题《复合题被拆开情况》 The U.S. and China don’t agree on much these days. Germany and France share a border and a currency but are frequently at odds. The U.K. and India like to march to their own drum. But there

单选题34. It was 80 years before Christopher Columbus crossed the Atlantic ______ Zheng He had sailed to East Africa.

单选题Questions 1 to 5 are based on the following passage.As an immigrant to North America, you will need to ensure that employers and organhations such as colleges and universities properly recognize your

单选题. Questions 19 to 22 are based on the recording you have just heard.4.

单选题3. The relatives of those killed in the crash got together to seek ______.

单选题《复合题被拆开情况》 Back in 1964, in his book Games People Play, psychiatrist Eric Berne described a pattern of conversation he called "Why Don’t You—Yes But", which remains one of the most irritating aspects