Article: Sixty-five million years ago, an asteroid that crashed on Earth led to the disappearance of the largest animals that have ever walked our planet - the dinosaurs. At least, this is what some scientists believe. But that accident happened so long ago. People have come to believe that we are free of threats from asteroids and everything else from space. However, what happened on Feb 15 , 2013 was a reminder that we're just as _ as the dinosaurs once were. Two objects from space - a meteor and an asteroid called 2012 DA14 - visited Earth's atmosphere on the same day. The former fell in Russia, injuring 1,200 people, while the latter passed by Earth at a record-setting close distance. Scientists had been expecting the asteroid since last year, but the meteor was a surprise. NASA's telescope system only detects asteroids at least 50 meters in diameter , which is just about the size of 2012 DA14. But the meteor was much smaller, which made it harder to spot. But what if we do spot an asteroid that is headed right for Earth? There are several possible ways in which dangerous asteroids could be made to change its orbit. Which method is best depends on several factors and most importantly - how much time we have to stop it. If there is enough time before the hit, we can send off a heavy spacecraft to travel alongside the asteroid. The gravity from the spacecraft would gradually change the rock's orbit. Besides that, scientists could one day use sun-powered lasers to either make asteroids disappear or change their course. If there's not enough time, we'll have to go after the asteroid with a spacecraft and change its orbit with a crash. Finally, if things are truly desperate, there will be only one choice left - to use a nuclear bomb. That could turn the asteroid into a meteor shower, which would be even more dangerous. Question: What is the main idea of the article? Yes or no, is the answer "The threats of objects from space and possible solutions."?
Yes

Article: For many people in the US,sports are not just for fun. They're almost a "religion".Thousands of sports fans buy expensive tickets to watch their favorite teams and athletes play in person .Other fans watch the games at home,sticking to their TV sets,never missing a game. Many a wife becomes a "sports widow" during her husband's favorite season. Americans' devotion to sports has created a new class:professional athletes. Sports stars often receive milliondollar salaries. Some even make big money by appearing in advertisements for soft drinks,shoes and almost everything. Sports are an important part of American culture. Throughout their school life,Americans learn to play many sports. Many students try out for the school teams. Athletic events at universities attract scores of fans and benefit the whole community. Many people also enjoy noncompetitive activities,like hiking,cycling,horseback riding,camping or hunting. Many sports were imported from other countries. Europeans brought tennis,golf,bowling and boxing to America .Football and baseball came from other Old World games. Only basketball has a truly American origin. Americans export sports fever as well. Satellites broadcast games to sports fans around the globe. NBA is a good example. The names of American superstars like basketball great Michael Jordan have become household words all over the world. Question: The writer mainly intends to tell us _ . Yes or no, is the answer "how important sports are in America"?
No

Article: Many of us are used to hearing stories of people being pickpocketed in busy places. But most of us are aware of the dangers, so we are safe - at least, we think we are. According to a BBC report, a growing number of thieves are trying to "hack our mind's weaknesses" to get their hands on our possessions. "In fact, the key requirement for a successful pickpocket isn't having quick fingers," said the report. By using psychology, some pickpockets are taking advantage of the loopholes in our brains. Our lack of ability to multitask is one of the most important loopholes used by pickpockets, the report explains. While this can often be a good trait , allowing us to focus on the most important details in our surroundings, "a good trickster can use it against you, " said neuroscientist Auzana Martinez-Conde. "It's all about directing people's attention toward something else," said James Brown, who studies the tricks of pickpocketing. Confidence, the power of suggestion, and certain hand movements such as moving your hands in an arc are all said to be things that fool us. Groups of pickpockets use a common trick designed to create a scene and confuse victims. The first gang member, a "blocker", walks in front of the victim and suddenly bumps into them. A second member of the gang then bumps into both of them from behind and stages an argument with the "blocker". In the confusion, both men steal what they can and pass it to a third thief who quickly runs off with the stolen goods. Some thieves go even further to exploit our psychology by hanging out near signs reading "beware of pickpockets". Since this is one of the last places people expect to be robbed, many check where their valuables are, giving away their location to thieves. But according to Brown, as long as we don't daydream in public, we shouldn't be worried. "A street thief will avoid like the plague " people who are demonstrating a very open awareness of their environment," he said. Question: Why do some thieves hang out near signs saying things like "beware of pickpocketers"? Yes or no, is the answer "They have a better chance of locating people's valuables there."?
Yes