[北邮大学英语精读2阶段作业三1.docVIP

一、阅读理解（共1道小题，共25.0分） Have you eaten too much over the holidays? You should try fidgeting for a while. Those around you might not like it, but scratching (moving your nails (指甲) against a part of your body) and twitching (moving suddenly and quickly when you dont want to) is an important way of burning up calories(热量). American researchers have found that some peoples squirming (continuously turn your body when nervous) and wigging (move in small movements, especially from side to side) equals (等于) several miles of slow running each day. The scientists, based at the National Institute of Healths laboratory in Phenix, Arizona, are studying why some people get fat and other people stay slim. In one study 177 people each spent 24 hours in a room in the institute where the amount of energy is measured by their oxygen and carbon dioxide(二氧化碳) levels. By the end of the day, some people had burned up 800 calories in toe-tapping (moving the front part of your foot up and down), finger-drumming (hitting your fingers continuously and lightly against something hard) and other nervous habits. However, others had burned up only 100 calories. The researchers found that slim women fidget more than fat women, but there was no significant difference in men. Heavy people burn up more energy when they fidget than do thin people. Based on the passage, the word “fidgeting” means which of the following? Scratching and twitching Squirming and wigging Slow running Moving ones body nervously Why do some people get fat and other people stay slim according to the passage? Thin people burn up less calories when they fidget than fat people. Fat people burn up more calories than thin people. Those who burn up more calories than others will be thinner. Those who fidget more than others will be thinner. What was found in the scientific experiment? The energy burned up by fat people when they fidget was more than that burned up by thin people when they fidget. Some people