Many of today's parents fondly remember childhood days spent playing outdoors. When children make mud pies and observe ants, it may seem like just fun and games, but the truth is the outdoor play is an important part of growing up healthily. The National Association for the Education of Young Children reports that outdoor play reduces (make…less) stress and restlessness in children and improves their attention.

    Outdoor play is the perfect way to fight against the childhood's obesity(being fat).Research shows that children who play outdoors are more fit and thin, according to the National Center for Physical Development and Outdoor Play. Children who spend time outside on a regular basis  also have healthier immune (免疫) systems. And playing outdoors is a good way to get enough vitamin D.

    Playing outside enables children to relax , reduces tension（紧张）and helps them solve problems. When children play outdoors, they learn to share and cooperate (work together) with one another. Kids who feel confident outdoors are likely to become able clever adults.

    The outdoors is a giant laboratory for learning that improves creative thinking and problem solving. Researchers have found that children learn best when their body, mind and spirit are involved (牵连的), and this appears in outdoor play. Outside activities develop all five senses, which create a powerful learning environment. The outdoors also lets children have the chance to explore (探究), experiment, form questions and create their own ideas about how the world works.

    Although there are the many advantages of outdoor play, time spent outside has been reduced for many of today's children. Kids today spend much more time in front of electronic media than children a generation (代) ago. The lack of outdoor play is tied to the childhood widespread obesity. And experts predict that the situation is so serious that this generation will have much trouble when they grow up. To get kids involved with the outdoors, encourage them to collect rocks, fly kites, climb trees, garden, camp, swim, go fishing, watch birds and butterflies or play games with other children.

阅读短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。

C

    There's a new frontier in 3D printing that's beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn't stopping there.

Food production

    With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that — it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to "re-create forms and pieces" of food that are "exactly the same," freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

Sustainability(可持续性）

    The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydrocolloids (水解胶体) from plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原料). 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.

Nutrition

    Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, "Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday's bread from the supermarket, you'd eat something baked just for you on demand."

Challenges

    Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste(糊状物) before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

    Since his early childhood, G. A. Minton has always been a faithful fan of science fiction and horror. Whenever a scary movie was playing at the local theatre, he was there in attendance with his friends, loudly screaming in terror.

    In his everyday life, Minton likes playing the game of golf most, having lettered on his high school golf team. In addition to writing, he also enjoys reading, traveling, fishing, swimming, working out, listening to hard rock music, and watching great movies－especially those about horror, science fiction, mystery and comedy.

    Strangely enough, it was only after Minton was knocked down by a drunk driver and suffered a closed-head injury that he developed a new found passion for writing. After the car accident, he suffered from both memory loss and problems communicating with others, which frustrated him to no end. He had to go to see his doctor on a regular basis and for weeks he had to take medicine used by patients who are suffering from Alzheimer's disease. Luckily, his brain slowly began to mend itself.

    At the end of the healing process, something was very different. He noticed that he had developed a strong urge to write down a story that had formed in his mind. That's how his first novel Trisomy XXI was born. He penned（写作）it in only three months. He began with chapter one and wrote in a freestyle manner—almost in a stream of consciousness. The narrative flowed freely from his vivid imagination, creating a thrilling tale of terror that is formed from an ordered sequence of events.

    One could think that the damaged neurons（神经元）had rearranged themselves into a different pattern, and thus improving the creative elements in his brain. Besides, stranger things have happened! He has recently completed his second novel. Currently, his brain is busy at work, seriously processing the text for another -story of the terror-one that will both entertain and horrify its unsuspecting reader!

    Pet Emergency? Call us right away at(403)342-5200!

    If you live in Red Deer or the surrounding area and need a trusted veterinarian(兽医) to care for your pets—look no further. Dr. Pat Higgins is a licensed Alberta veterinarian, treating all types of pets. Your pets' health and happiness are very important to us, and we take every possible measure to give your animals the care they deserve.

    Deer Park Pet Hospital is a full service animal hospital and welcomes both emergency treatment cases as well as pet patients in need of routine medical, surgical, and dental(牙科) care. Dr. Pat Higgins has years of experience treating serious conditions and offering regular pet health care. Beyond first rate pet care, we make our clinic comfortable, kid-friendly, and calm, so your pet can relax in the waiting room and look forward to meeting our Red Deer veterinarian.

    We are happy to offer a number of resources that enable you to learn about how to take better care of your pets. Please feel free to browse our site, particularly the informational articles. The best veterinary care for animals is ongoing nutrition and problem prevention, so becoming knowledgeable about preventative pet care is vital to the ongoing success of your animal's health. If you have any questions, call(403)342-5200 or email us and we'll immediately get back to you. Our Red Deer veterinarian office is very easy to get to—and you can find directions on our Contact Us page! We also welcome you to subscribe to our newsletter, which is created especially for Red Deer pet owners.

    At Deer Park Pet Hospital, we treat your pets like the valued family members.

    Dr. Pat Higgins

    Red Deer Veterinarian│Deer Park Pet Hospital│(403)342-5200

    420 Allan Street#4

    Red Deer, Alberta T4R 2K7