题型：阅读选择 题类： 难易度：普通
浙江省衢州市实验学校教育集团（衢州学院附属学校教育集团）2024-2025学年九年级上学期11月期中英语试题
Some people have sensitive (敏感的) feet or skin. Others may have a hard time laughing at their own mistakes. Perhaps you live with someone like this. But can you imagine living with a sensitive plant?
Now, imagine that your hand is a green plant stem(茎) and each of your fingers is a leaf. Use your other hand to touch your leaf fingers. One at a time, close each leaf finger. until you have made a fist. Quickly drop your hand down to your leg. Wait a little while, and then slowly bring your hand back to its original(原来的) position.
It's just this kind of behavior that has made the sensitive plant get its name. Brush your fingers gently across the leaves of the sensitive plant, and the leaves at once fold up(合拢) like tiny green fingers. The stems drop down as if ready to fall off the plant. About ten minutes later, the leaves open again, and the stems rise again! Sensitive plants are easy to grow inside your house. They simply need to get plenty of water and sunlight. But touching the plant too often can cause the plant to lose its leaves. A sensitive plant that loses many of its leaves may become unhealthy.
Imagine the fun you can have: introducing a friend to your plant! Have your friend stand close to the plant to tell it jokes. Touch your plant with a finger, and watch your friend's reaction when the plant seems to drop down slowly to say"no". Be sure to tell your friend the true cause of the plant's behavior later, though. You don't want your friend to become overly sensitive about his jokes!
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The human spine（脊柱） doesn't just help us stand up straight. Inside the spine is the spinal cord (脊髓) {#blank#}1{#/blank#} The legs and feet send "sense" information to the brain, saying they're hurt or hot, for example. And the brain sends messages to the lower body, telling the legs to walk, dance or sit down.
When someone's spinal cord is hurt, information about senses doesn't reach the brain from the lower body. And control messages can't make it to the lower body from the brain. {#blank#}2{#/blank#}
Surprisingly, now scientists in Switzerland have given three paralyzed men the ability to walk again. All of the three men had damaged their spinal cords in motorcycle accidents and couldn't move their legs. To help them walk again, a special device (装置) was put directly on the lower part of their spinal cord.
The scientists controlled the device from a computer. {#blank#}3{#/blank#} In the past, scientists have had some successes with the similar device in the lower spine. Some patients have even trained themselves over months to be able to walk.
But this research is different. {#blank#}4{#/blank#}Instead, the computer tells the device to send "walking" messages. The scientists use computers to create patterns of movement—like taking a step—that work well with each patient. The patients then choose the pattern they want, and the muscles (肌肉) move in the chosen way.
Over time, the three men are able to walk on their own, using a special walker with buttons to trigger (激发) each leg. {#blank#}5{#/blank#} The scientists are hopeful that in the future, this technology will allow more paralyzed people to walk again.
A. When that happens, a person is paralyzed (瘫痪的). B. The patients' brains aren't sending "walking" messages to their legs. C. The solution isn't perfect and the patients can't walk without the system. D. One of them has walked for half a kilometer on his own with the walker. E. It carries important information between the head and the lower part of the body. F. Just hours after the device was first used, all the three men were taking steps, with support. |
The teacher wants the students to talk about their family rules on weekends.
Julie | My weekends are always busy. I don't have much homework now, butI have to take some art and swimming classes. And I must practice the piano on Sunday. |
Daisy | I don't think my parents are very strict with me. They want me to be a happy girl. I can do what I like on weekends. And my favorite thing is to play with my dog. |
Mike | I must get up before 7:00 on the weekend. Then I need to practice playing tennis for an hour. I can only watch TV from 6:00 to 8:00 in the evening. I can't eat hamburgers or ice- cream. My parents want me to live a healthy life. |
Steve | In my family, we have to follow some rules on weekends. We must eat dinner together on Sunday. Also, we must read a book for half an hour. But the rules aren't for my sister. She's only 3 months old. |
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