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问题 单项选择题

《中华人民共和国节约能源法》所称节约能源，是指加强用能管理，采取技术上可行、经济上合理以及环境和社会可以承受的措施，从能源生产到消费的各个环节，降低消耗、减少损失和污染物排放、制止浪费，有效、合理地利用（）。

A.有用能

B.动能

C.能量

D.能源

答案

参考答案：D

解析：根据《中华人民共和国节约能源法》第三条的规定，节约能源是指加强用能管理，采取技术上可行、经济上合理以及环境和社会可以承受的措施，从能源生产到消费的各个环节，降低消耗、减少损失和污染物排放、制止浪费，有效、合理地利用能源。

填空题

Perhaps like most Americans you have some extra pounds to (47) . You may even have tried a fad diet or two, but found yourself right back where you started. The key to weight loss is regular (48) activity. And surprisingly, you don’t have to give up eating or make the gym your second home to see long-term, (49) effects.
Your body needs a certain amount of energy to maintain basic (50) such as breathing, blood circulation and digestion. The energy required to keep your organs functioning is referred to as the resting or basal metabolic rate.
Any time you are active, (51) energy is required. It is obtained from glycogen and fat stored in the blood, liver, and muscles. The key to losing weight is to draw on the fat rather than on the carbohydrate reserves.
Which of the two energy sources you use depends on the intensity and (52) of your activity. The higher the intensity, the more your body will pull from the stored carbohydrates. The lower the intensity, the more your body will (53) on fat as its fuel.
Aerobic exercise is most (54) for weight loss. When you perform aerobic activities you (55) contract large muscle groups such as your legs and arms. Walking, running, rollerblading, swimming, dancing, and jumping jacks are all forms of aerobic activity.
Surprisingly, if your aerobic activity is low to moderately intense and of long duration, you will bum more fat than if you had (56) in a short burst of high-intensity exercise. In short, a brisk 30-minute walk will bum fat while a 100-yard sprint will bum glycogen.

  • [A] positive[I] participated
  • [B] additional[J] rely
  • [C] duration [K] cut
  • [D] effective [L] repeatedly
  • [E] shed [M] uses
  • [F] physical [N] little
  • [G] food [O] obvious
  • [H] functions
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问答题

认真阅读“给定资料”。简要回答下面两个问题。

“给定资料8”介绍了国外一些城市地铁运营的事例，谈谈这些具体事例对你有什么启示。
要求：结合具体做法，分析全面，表述清晰。不超过300字。
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