结构推理 Directions: Read the following passage carefully and give brief answers to the questions. Questions 1 to 5 are based on the following passage. Lately it seems like all the shoes I see in the stores have high heels (高跟). Frankly, I like the way they look, but aren't they bad for my feet? Yes, they are. The popularity of high heels doesn't mean they can't hurt you. They can do harm to your entire body -- not just your feet. People take an average of 10,000 steps a day. High heels change the force of each of those steps so that the most pressure ends up on the ball of the foot and on the bones at the base of the toes. As a result, heels can lead to many foot diseases, such as heel pain, toe deformities (畸形), trapped nerves and so on. In fact, women account for about 90/% of the nearly 800,000 operations each year for these diseases and most of these surgeries can be linked back to their high-heeled shoe choice. The problems can travel upward, too. The ankle, knee, and hip joints can all suffer from your shoe choices. When wearing your high-heeled shoes, the foot is held in a downward position as you walk. This keeps the knee, hip, and lower back in a somewhat bended position, which prevents the muscles that cross the backside of these joints to straighten to full length as they normally woulD、Over time, this can lead to stiffness, pain, and injury. High heels can also cause lower back strain, because the heel causes your body to pitch forward more than normal, putting excess pressure on the back. 1. Which parts of the body do high-heeled shoes do harm to? 2. How can high-heels lead to foot diseases? 3. Women's high-heeled shoe choice is linked to the operations for their foot diseases, which account for ______ of the nearly 800,000 surgeries of this kind each year. 4. In addition to the foot, what are the other parts of the body which suffer from wearing high-heels? 5. Why can high heels cause lower back strain?