Sprained(扭伤)Ankle One of the most common injuries teenagers and adults experience is a sprained ankle. A sprain occurs when the ligaments(韧带)of a joint are twisted(扭伤) and possibly torn. Ligaments are bands of fibers that hold the bones of a joint in position. A sprain can occur from a sudden twisting at the joint, or a stretching or tearing of the fibers of the ligaments. The injured area usually swells(肿胀) and becomes black and blue. Stepping off the sidewalk at the wrong angle or having one foot land in a hole while walking or running can leave you rolling on the ground in pain with an ankle on fire! If you cannot walk without experiencing intense pain,you must seek medical help. If the pain is manageable,and you can walk,here are three words to help you remember how to treat yourself: ■ Elevate(抬高) ■ Cool ■ Bandage (打绷带 ) As soon as there is injury to that ligament, there will be a certain amount of bleeding under the skin. Once the blood pools around the damaged blood vessels, swelling occurs. The pressure from the swelling results in additional stress and tenderness to the region. In order to reduce the degree of swelling, lie down as soon as possible and keep the ankle elevated so that it is actually higher than your heart. Next,to reduce blood distribution and keep bleeding to a minimum,apply a cold pack. After 20 minutes, take the pack off,wait half an hour and then reapply. This can be done several times a day for a total of three days. Never leave a cold pack on for more than 20 minutes at a time. Reducing the temperature in that area for an extended period of time signals the body to increase blood flow to raise the body temperature! Therefore,one accidentally triggers more blood distribution to the affected area by leaving a cold pack on for too long! Finally,bandage the ankle. Be careful not to wind it too tightly;doing so can restrict blood flow and cause harm to the entire foot.The main idea of the passage is to explain A．how a sprain occurs.B．how to treat a sprained ankle.C．how to bandage an injured foot.D．how to reduce the temperature of a wounded are
Sprained(扭伤)Ankle One of the most common injuries teenagers and adults experience is a sprained ankle. A sprain occurs when the ligaments(韧带)of a joint are twisted(扭伤) and possibly torn. Ligaments are bands of fibers that hold the bones of a joint in position. A sprain can occur from a sudden twisting at the joint, or a stretching or tearing of the fibers of the ligaments. The injured area usually swells(肿胀) and becomes black and blue. Stepping off the sidewalk at the wrong angle or having one foot land in a hole while walking or running can leave you rolling on the ground in pain with an ankle on fire! If you cannot walk without experiencing intense pain,you must seek medical help. If the pain is manageable,and you can walk,here are three words to help you remember how to treat yourself: ■ Elevate(抬高) ■ Cool ■ Bandage (打绷带 ) As soon as there is injury to that ligament, there will be a certain amount of bleeding under the skin. Once the blood pools around the damaged blood vessels, swelling occurs. The pressure from the swelling results in additional stress and tenderness to the region. In order to reduce the degree of swelling, lie down as soon as possible and keep the ankle elevated so that it is actually higher than your heart. Next,to reduce blood distribution and keep bleeding to a minimum,apply a cold pack. After 20 minutes, take the pack off,wait half an hour and then reapply. This can be done several times a day for a total of three days. Never leave a cold pack on for more than 20 minutes at a time. Reducing the temperature in that area for an extended period of time signals the body to increase blood flow to raise the body temperature! Therefore,one accidentally triggers more blood distribution to the affected area by leaving a cold pack on for too long! Finally,bandage the ankle. Be careful not to wind it too tightly;doing so can restrict blood flow and cause harm to the entire foot.The main idea of the passage is to explain A．how a sprain occurs.B．how to treat a sprained ankle.C．how to bandage an injured foot.D．how to reduce the temperature of a wounded are
题目解答
答案
B
解析
文章主要描述了扭伤脚踝的处理方法。首先，文章解释了扭伤脚踝的原因和症状。然后，文章详细介绍了处理扭伤脚踝的三个步骤：抬高、冷敷和打绷带。这些步骤的目的是减少肿胀和疼痛，防止进一步的伤害。
步骤 2：分析选项
A. 如何发生扭伤：文章确实提到了扭伤的原因，但不是主要的讨论点。
B. 如何处理扭伤脚踝：文章详细描述了处理扭伤脚踝的方法，这是文章的主要内容。
C. 如何包扎受伤的脚：虽然文章提到了包扎，但这只是处理方法的一部分。
D. 如何降低受伤区域的温度：文章提到了冷敷，但这只是处理方法的一部分。
步骤 3：选择正确答案
根据文章内容，主要讨论的是如何处理扭伤脚踝，因此正确答案是B。