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1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流高三英语语法填空.精品文档.（1）Why do kids never seem to get tired?Its the age-old question asked by parents: Why do kids never seem to get tired? Finally, science has an answer. According to a new study, most children have a metabolic rate similar to _21_ of a well-trained endurance ath
2、lete, and they can recover from fatigue even _22_ (fast).For the study, published inFrontiers in Physiology, researchers compared the metabolic and fatigue rates of three groups of participants: 8- to 10-year-old boys, unathletic adults, and nationally-ranked endurance athletes who compete in triath
3、lons, marathons and cycling. Researchers compared the energy output and recovery rates _23_ (follow) exercise by monitoring heart rates, oxygen levels, and lactate-removal levels to see _24_ quickly the participants recovered. Children outperformed adults in all of the tests.Step for step, researche
4、rs found that the kids _25_ (burn) more energy because they had to take more steps _26_ (cover) a certain distance than their adult peers. They also tended to use less efficient movements to complete each task. _27_ the study found that the children overcame these obstacles with seemingly fatigue-re
5、sistant muscles that allowed them to recover quickly from high-intensity exercise.Thats right, fatigue-resistant muscles.These results come as no surprise to any parent who has ever collapsed on the couch after trying to keep up _28_ kids at the playground. Theres a reason _29_ parents often joke about bottling their kids energy and _30_ (sell) it to make millions. And now, it seems, science finally concurs.（239 words, 难易度：易）参考答案21. that 考查代词22. faster 考查形容词比较级23. following 考查现在分词24. how 考查宾语从句25. burned 考查一般过去时26. to cover 考查动词不定式27. But 考查转折连词28. with 考查介词29. why 考查定语从句30. selling 考查动名词