Q: Read the following article and select the best answer. Article: Last summer, when Amanda R of Anaheim Hills, California, was running on a cross-country course with her team, she blacked out. "I got really dizzy," she says. "I was out for a few minutes." At first, Amanda thought she was just tired and didn't think she had a health problem. She did go to the emergency room, where she was fine after tests, but she fainted again several days later as she was talking with her coach. Another doctor guessed that Amanda had blacked out "because we were in heat so much with not enough water and not enough of the right kind of foods". Teens often don't want to stop and take a break or don't notice when they start to feel bad, doctors say. However, paying attention if you're not feeling well is important, as Amanda learned. As a result, Amanda has changed her habits. "I drink a lot more water," she says. "And put more salt in my diet. I'm eating more balanced meals." Amanda advises teen athletes to trust their coaches and speak up when they're not feeling well. "And recognize the difference between when you're tired and when there's something really wrong." Some people - up to 3 percent of the population - sweat too much, even in cold weather. The condition, called hyperhidrosis , can affect many parts and it often runs in families - hands down from generation to generation. Too much sweating over the whole body could be a symptom of another medical condition. Doctors aren't sure what causes hyperhidrosis, but using special medications or other treatments can help. Question: The purpose of writing this passage is to _ . - tell teens the proper ways to take exercise in summer. - tell teens not to run in hot summer. - tell teens to pay attention to hyperhidrosis in the summer exercise - tell teens how to keep healthy.
A: tell teens to pay attention to hyperhidrosis in the summer exercise

Q: Read the following article and select the best answer. Article: "Mom, can I bake some bread?" We were 15, my best friend, Hanna, and I, determined to try our hands at creating some beautiful bread. "It's not worth the trouble," my mother said. "It takes lots of time and makes a big mess. Our bakery bread is delicious without all that effort." Begging was useless. Mom's "no" meant "No!" But several weeks later, opportunity knocked: My parents were going out for the evening. I immediately invited Hanna to be my partner in bread-baking crime. We studied the recipe. That was easy. "Mix oil into flour then beat in four of the eggs, one at a time, with remaining sugar and salt." We were not good at breaking eggs. I tried to learn from my mother. "Gradually add eight cups of flour. When dough holds together, squeeze it." We took turns working like that. "Is the dough 'holding together'?" we asked each other. I remembered my neighbor's instructions: "If it's too sticky, add some flour; if too dry, add water." We added water. Then more flour. Then more water. By then, the mass of our dough had grown very much. "Place dough on floured surface and squeeze till smooth," the recipe instructed. We took turns burying our hands in the damp dough, pinching, squeezing, and feeling it leak between fingers. "Clean and oil bowl, then return dough to bowl. Cover and let dough rise in warm place for 1 hour." This was good news --- we'd have a break. On dirtied kitchen chairs, we dreamed about our beautiful bread. "See?" we would tell my mom. "Isn't it worth the work?" Hanna and I couldn't help glancing at the rising process every few minutes. But nothing was happening. "Maybe something will happen in the hot oven," I said. Unfortunately, when we removed the loaves from the oven, they were like hard stones. Mom was right; it takes time and effort. It sometimes makes a mess. But still it feels good, somehow, to be part of that long, ongoing chain of bread bakers. Since that night, both Hanna and I have learned to do it right. Question: The passage mainly tells us _ . - the process of making bread - the conflict between mother and daughter - the first experience of making bread - the way of doing housework
A: the first experience of making bread

Q: Read the following article and select the best answer. Article: Recently, many shoppers chose to avoid the crazy crowds and do their holiday shopping from the comfort of their computer.Sales at online stores gained by more than 15%, making it the biggest season ever.But people are also returning those purchases at record rates, up 8% from last year. What went wrong? Is the shadow of the global financial crisis making it harder to accept excessive addiction? Or that people shop more impulsively --and therefore make bad decisions --when online? Both arguments are seemingly reasonable.However, there is a third factor: a question of touch.We can love (lie look but, in an online environment, we cannot feel the quality of a texture , the shape of the fit, the fall of a fold or, for that matter, the weight of an earring.And physically interacting with an object makes you more committed to your purchase. When my most recent book Brandwashed was released, I joined up with a local bookstore to conduct an experiment about the difference between the online and offline shopping experience.I carefully instructed a group of volunteers to promote my book in two different ways.The first was a fairly hands-off approach.Whenever a customer would ask about my book, the volunteer would take them over to the shelf and point to it.Out of 20 such requests, six customers made the purchase. The second option also involved going over to the shelf but, this time, removing the book and then holding onto it for just an extra moment before placing it in the customer's hands.Of the 20 people who were handed the book, 13 ended up buying it.Just physically passing the book showed a big difference in sales.Why? We feel something similar to a sense of ownership when we hold things in our hand.That's why we establish connection by greeting strangers and friends with a handshake.In this case, having to then let go of the book after holding it might produce a sense of loss, and motivate us to make the purchase even more. A recent study also showed the power of touch, in this case when it came to traditional... Question: What is the purpose of author's experiment? - To find out people's reaction to his recent book. - To test his assumption about online shopping. - To find ways to increase the sale of his new book. - To try different approaches to sales promotion.
A: To test his assumption about online shopping.