*Question*
Read the following article and select the best answer. Article: Every few years comes a fitness trend that has people scratching their heads in amazement. "Crunning" will probably be one of them. The "c" stands for "crawling" . This new sport needs two-legged humans running on all fours! The funny idea is the brainchild of Shaun McCarthy. The 34-year-old is convinced that it will revolutionize fitness as we know it. According to the sports enthusiast, "The only thing that crunning's changed about fitness is that it's changed everything about fitness." Mccarthy has no scientific evidence to prove that crunning is more efficient than traditional two-legged running. However, he believes it is a more effective way to exercise because it puts an emphasis on the shoulders and arms, providing a complete body workout. Mccarthy also says crunning seems to tire him out more. He therefore concludes that the unconventional exercise is a bigger calorie burner than normal running. While experts generally agree that crunning may provide a better workout, many are not sure if it is the right exercise for humans. Fitness coach Kevin Dean says we are not built to be on all fours and our wrists are therefore not as strong as our ankles. He believes crunning, which he calls a fad , could result in bad wrist and shoulder injuries, not to mention broken noses. But McCarthy is not worried. Since the release of his crunning video a few weeks ago, many Melbourne residents have been seen scampering around on all fours. As it turns out they are not the only ones. In the Chinese city of Zhengzhou, crawling, a much slower version of crunning, has been a favorite activity for many years. According to some enthusiasts, the light exercise that is believed to date back two thousand years to the Han Dynasty, is good for curing back and spine ailments. Ready to give crunning try? Then Mccarthy recommends investing in some good shoes, hardy gloves and most important of all, a face mask! Question: What does the author think of crunning? - Dangerous. - Interesting. - Beneficial. - Unbelievable.
**Answer**
Interesting.

*Question*
Read the following article and select the best answer. Article: Teens are more likely to behave badly if their parents expect them to,a new US study has found. "Parents who believe they are simply being realistic might actually be having a bad effect on their children," Christy Buchanan,a teacher at Wake Forest University and one of the authors of the study,said. "Bad expectations on the part of both parents and children predict more rebellious   behaviors later on." The finding came from a study of more than 250 sixth and seventhgraders and their mothers. They were examined at the start of the study and again one year later. If kids' mothers expected them to take more risks and be more rebellious,higher chances of risky behavior were seen.   _     _     _   when kids had bad expectations of themselves. "Sometimes parents expect more negative behavior from their children than they should based on the children's history of behavior," Buchanan said.Parents shouldn't be naive   about the possibility of bad behavior,she said,but it's also a mistake to think that children who are wellbehaved will naturally become rebellious at the age of 13. "By thinking risktaking or rebelliousness is normal for teenagers and showing that to their children,parents might add to other messages from society that make teenagers feel that they are strange if they are not willing to take risks or break laws," she said."This can mean,for example,that when parents expect teens to drink before they turn 21 or to do other risky behaviors,kids are less likely to refuse to do so later in their lives." On the other hand,parents' expectations that teens can exhibit good behaviors and refuse to behave badly or to take risks could help reduce the possibility of bad behavior,Buchanan said."As a parent,you should put expectations on your children carefully." Question: Children may be more rebellious if   _   . - they know parents think risktaking is normal - parents put little expectation on them - they behave well before they turn 13 - they are asked not to take risks
**Answer**
they know parents think risktaking is normal

*Question*
Read the following article and select the best answer. Article: Classical philosophers called humans "the rational  animal". Clearly, they never looked closely at ants. A new study suggests that ant colonies avoid irrational decisions that people and other animals often make. Consider the following scenario: You want to buy a house with a big kitchen and a big yard, but there are only two homes on the market---one with a big kitchen and a small yard and the other with a small kitchen and a big yard. Studies show you'd be about 50% likely to choose either house---and either one would be a rational choice. But now, a new home comes on the market, this one with a large kitchen and no yard. This time, studies show, you'll make an irrational decision: Even though nothing has changed with the first two houses, you'll now favor the house with the big kitchen and small yard over the one with the small kitchen and big yard. Overall, scientists have found, people and other animals will often change their original preferences when presented with a third choice. Not so with ants. These insects also shop for homes but not quite in the way that humans do. Solitary worker ants spread out, looking for two main features: a small entrance and a dark inside. If an ant finds an outstanding hole---such as the inside of an acorn or a rock crevice---it brings another worker ant to check it out. As more ants like the site, the number of workers in the new hole grows. Once the crowd reaches a critical mass, the ants race back to the old nest and start carrying the queen and larvae to move the entire colony. To test ant rationality, Stephen Pratt, a behavioral ecologist at Arizona State University in Tempe, and a colleague designed a series of possible nests for 26 ant colonies. The duo cut rectangular holes in balsa wood and covered them with glass microscope slides. The researchers then drilled holes of various sizes into the glass slides and slipped plastic light filters under the glass to vary the features ants care about most. At first, the colonies only had two options, A and B. A was dark... Question: According to Stephen Pratt, why are the ant colonies able to make the rational choice in comparison with humans? - They are not aware of more optional places. - They have clever worker ants to make the discoveries. - They are not well educated and intelligent as humans. - Ants are better at making collective choices with their ignorant partners.
**Answer**
They are not aware of more optional places.

*Question*
Read the following article and select the best answer. Article: Mr. King lived with six hundred wild animals on the Greek Island of Kyklos. Ever since he left school, he had traveled all over the word collecting animals for his own zoo. He hoped to collect two examples of every kind of animal on his island. But he was afraid that people would find him someday. He wrote books about his travels and about his animals that he collected. The money from the books helped to pay for all the food that these animals ate. One day, when Mr. King was out looking for drinking water, he found oil. He needed money for his travels and for his zoo, and a little oil would buy enough water for what he needed all his life, but he knew that if he told anyone else about it, it would be the end of his zoo and his life's work. So he decided not to tell anyone else about what he had found, because oil and water couldn't mix. Question: Mr. King traveled all over the world for collecting   _  . - oil - water - animals - money
**Answer**
