Why are we sleepy in spring? Circadian Clock (生物钟) The biological clock has not been adjusted in accordance with (依照) the seasonal change of day and night. Lack of enough blood in the brain In spring, the capillaries (毛细血管) relax. More blood flows to the surface, while comparatively less goes to the organs (器官) and brain. | |
Who is most prone (易受的) to spring fatigue? | |
●People who like to eat raw (生的) and cold food. | ●People who stay up late. |
Physical exercise helps drive away spring fatigue. Jogging, swimming, ball games and even steam baths can help adjust someone's metabolism (新陈代谢) and Increase blood flow. This sends more oxygen to the brain and relieves sleepiness. A healthy waking and sleeping schedule are important in fighting this kind of fatigue. |
A. The more times they practise the speech, the more comfortable they are discussing the topic. B. Another way of dealing with public speaking fears is using the audience's positive energy. C. So there is no need to fear public speaking any more. D. All in all, these two ways are sure to help with fear of public speaking. E. Speakers need to speak loud enough to make themselves heard by the audience. F. Luckily, this fear can be overcome (克服) with two simple methods:practice and using positive energy from the audience. |
(1)你对《意见》的看法 | 支持、赞同、觉得非常有必要…… |
(2)你自己参与劳动实践的情况 | 举例说明在家做家务和在学校参加的劳动实践…… |
(3)中小学生应该如何培养劳动精神 | 上劳动教育课, 学习基本的生活技能、提高认识:(补充一点) |