英语三轮总复习宣传画册 |
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信心来自于实力,实力来自于勤奋。 高三英语衡中学案(三轮复习) 96 C.Experience is the mother of wisdom. D.Success comes from thorough self-control. D Researchers say a new electrical device placed in three paralyzed patients has helped them walk again. The lower bodies of the three patients were left paralyzed after they suffered spinal (脊柱的) cord injuries. But a device implanted in the spinal cord was able to send electrical signals to the muscles to permit them to stand, walk and exercise. Scientists have discovered that neurons—which receive and send signals for muscle movements—often still work in injured patients with serious spinal cord injuries. However, past research into spinal cord injuries has centered on the stimulation of neurons. Now in the latest experiment led by Gregoire Courtine and Jocelyne Bloch of the Swiss Federal Institute of Technology in Lausanne, three paralyzed men were implanted a new electrical device designed to copy an action of the brain, in which it sends signals to the spinal cord that result in muscle movement. When the spinal cord receives the brain signals, it stimulates a collection of nerve cells that can activate different muscles. The researchers reported that all three patients who got the spinal cord implants were able to take their first steps within an hour after receiving them. Over the next six months, the patients regained the ability to take part in more advanced walking activities, the study found. They were also able to ride bicycles and swim in community settings. Unlike other attempts to help paralyzed patients walk by stimulating nerves through the back of the spine, Courtine said that his team redesigned the devices so signals would enter the spine from the sides. This method permits more direct targeting and activation of spinal cord areas, he said. The team then developed artificial intelligence (AI) systems linked to the device. The AI controls electrodes on the device to send signals to stimulate individual nerves that control muscles needed for walking and other activities. However, because the patients’ muscles were weak from not being used, they needed help with supporting their weight, the researchers said. It also took some time for them to learn to work with the technology. Still, Bloch said, “The more they train, the more they start lifting their muscles, the more fluid it becomes.” 12.What can be inferred from paragraph 2? A.Courtine and Bloch have found that neurons in paralyzed patients still work. B.The new electrical device can imitate the brain to send signals to the spinal cord. C.Three paralyzed men recovered with the help of a new electrical device. D.Stimulating the neurons is the focus of the latest research into spinal cord injuries. 13.How does the new device stimulate the spinal cord areas more directly? A.By stimulating nerves through the back of the spine. B.By using the AI system. C.By making signals enter the spine from the sides. D.By sending the signals to the brain. 14.Which can best describe Bloch’s idea in the last paragraph? A.Every garden has its weeds. B.Put the cart (运货马车) before the horse. C.It's hard to please all. D.Practice makes perfect. 15.What is the purpose of this text? A.To report the consequence of spinal cord injuries. B.To introduce the findings of a recent research. C.To compare a recent research with other previous researches. D.To recommend a treatment for paralyzed patients.第二节 (共 5 小题;每小题 2 分,满分 10 分) 根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Art is all around us. It can be found everywhere, including fancy galleries, people’s living rooms, and on the sides of buildings. So, why is art important? It promotes expression and creativity. As humans, we’re naturally drawn to art as a form of expression and communication. 16 It’s a way for them to express themselves before they’re able to speak. In fact, participation in the arts may even assist kids with language, motor skills, and visual learning development. 17 . When someone applies for a job, there are certain skills they need to have like data analysis or bookkeeping. However, many employers also understand the very important need for the skills which are hard to measure and often difficult to define. Some examples include a person’s ability to adapt to change, think creatively, or collaborate with team members. It provides historical context. 18 . This is why people dedicate their lives to studying cave art, Shakespearean plays, and so much more. When we take the time to dive into art created in the past, we can learn about other generations and eras. We can study art to find out what those before us were facing |
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