Article: It is a tall tale that terrifies most young children. Swallow a piece of chewing gum and it will remain in your body for seven years before it is digested. An even worse tale is that swallowed gum can wrap itself around your heart. But what does happen if you should accidentally eat a stick of gum? Chewing gum is made out of gum base, sweeteners, coloring and flavoring. The gum base is pretty indigestibleit is a mixture of different ingredients that our body can't absorb. Most of the time, your stomach really cannot break down the gum the way it would break down other foods. However, your digestive system has another way to deal with things you swallow. After all, we eat lots of things that we are unable to fully digest. They keep moving along until they make it all the way through the gut and come out at the other end one or two days later. The saliva in our mouths will make an attempt at digesting chewing gum as soon as we put it in our mouths. It might get through the shell but many of gum's base ingredients are indigestible. It's then down to our stomach muscleswhich contract and relax, much like the way an earthworm moves to slowly force the things that we swallow through our systems. Swallowing a huge piece of gum or swallowing many small pieces of gum in a short time can cause a blockage within the digestive system, most often in children, who have a thinner digestive tube than adults but this is extremely rare. Question: Children might feel terrified after swallowing chewing gum mainly because _ . Yes or no, is the answer "they believe the tall tales about chewing gum"?
Yes

Article: Mistrust _ Zhengzhou Ride-share Effort More than 300 private car owners from a central Chinese city volunteered to offer free rides to citizens to ease crowded public transportation, but many local people didn't accept the offer for fear of being cheated. The ride-share program was begun in October in Zhengzhou, capital of Henan Province, when Ye Zhantong, a private car driver, started to gather volunteers to offer the free service. The drivers tied a green silk ribbon on the car to differentiate themselves from unlicensed taxi drivers. But the free rides haven't been popular among the public as increasing reports of dishonesty have dried up many local citizens' trust towards strangers. Ye said some of the volunteers have dropped out after they felt their kind intention was being questioned. Passersby walking in heavy rainfall or passengers who missed a bus would remain silent and walk away when the volunteers would stop and offer a ride. "It's so common that people give us the cold shoulder, and sometimes, take our kindness as ill will," said one of Ye's volunteers, identified as Binge. "Many would even say: 'Let's get out of here quickly to avoid being cheated by him.'" Some commenters on Weibo explained why they hesitated to participate in a ride-share program. "Trusting a stranger might bring huge risks. I can't take the risk," one Internet user wrote. Some said Ye's group wasn't authorized, and cheaters pretending to be kind drivers might volunteer. They suggested traffic authorities issue rules to regulate, protect and promote ride-share programs. Question: Which correctly explains the expression "give sb. the cold shoulder"? Yes or no, is the answer "To be unfriendly to sb. ."?
No

Article: The other day my aunt paid me a visit. She was overjoyed. "I got the highest mark in the mid-term examination!" She said. Don't be surprised! My aunt is indeed a student, exactly, a college student at the age of 45. "Compared with the late 70s," she says, "now college students have many doors." I was shocked when she first told me how she had had no choice in her major. Look at us today! So many doors are open to us! I believe there have never been such abundant opportunities for self-development as we have today. And my aunt told me that we should reach our goals by grasping all these opportunities. The first door is the opportunity to study different subjects that interest us. My aunt was happy to study management, but she could also attend lectures on ancient Chinese poetry and on Shakespearean drama. As for myself, I am an English major, but I may also go to lectures on history. The second door is the door to the outside world. Learning goes beyond classrooms and national boundaries. I have many fellow international classmates, and I am applying to an exchange program with a university abroad. As for my aunt, she is planning to get an MBA degree in the U.K. The third door is the door to life-long learning. Many of my aunt's contemporaries say she's amazingly up-to-date for a middle-aged woman. She simply responds, "Age doesn't matter. What matters is your attitude. I don't think I'm too old to learn." Yes, she is right. Since the government removed the age limit for college admissions, there are already some untraditional students, sitting with us in the same classrooms. Like them, my aunt is old but young in spirit with incredible energy and determination. The doors open to us also pose challenges. For instance, we are faced with the challenge of a balanced learning, the challenge of preserving our fine tradition while learning from the West, and the challenge of learning continuously while carrying heavy responsibilities to our work and family. So, each door is a test of our courage, ability and... Question: What made the writher's aunt overjoyed? Yes or no, is the answer "Getting the highest score in her exam"?
No

Article: The two things - snow and mountains - which are needed for a ski area are the two things that cause avalanches, large mass of snow and ice crushing down the side of a mountain--often called "White Death." It was the threat of the avalanche and its record as a killer of man in the western mountains that created the snow ranger. He first started on avalanche control work in the winter of 1937 -38 at Alta, Utah, in Wasatch National Forest. This mountain valley was becoming well known to skiers. It was dangerous. In fact, more than 120 persons had lost their lives in 1936 and another 200 died in 1937 as a result of avalanches before it became a major ski area. Thus, development of Alta and other major ski resorts in the west was dependent upon controlling the avalanche. The Forest Service set out to do it, and did, with its corps of snow rangers. It takes many things to make a snow ranger. The snow ranger must be in excellent physical condition. He must be a good skier and a skilled mountain climber He should have at least a high school education, and the more college courses in geology, physics, and related fields he has, the better. He studies snow, terrain, wind, and weather. He learns the conditions that produce avalanches. He learns to forecast avalanches and to bring them roaring on down the mountainsides to reduce their killing strength. . The snow ranger learns to do this by using artillery, by blasting with TNT, and by the difficult and skillful art of skiing avalanches down. The snow ranger, dressed in a green parka which has a bright yellow shoulder patch, means safety for people on ski slopes. He pulls the trigger on a 75 mm. Recoilless rifle, skis waist deep in powder testing snow stability, or talks with the ski area's operator as he goes about his work to protect the public from the hazards of deep snow on steep mountain slopes. Question: The passage implies that a snow ranger Yes or no, is the answer "may travel many miles when he is on duty."?
No