21-10-02 形式美、语言美和音韵美你善于欣赏一首好诗里的丰富美感吗？无论是李白的五言律诗，莎士比亚的十四行诗还是文学小品中俏皮的 打油诗，诗歌在各个时代、不同国家的文学发展中占据着重要的地位。做本集《英语小测验》，学习与 诗歌 相关的英语词汇。 1. Poems often use...

21-10-02 鼓乐操之，乐而胜之。音乐能给我们带来欢乐，为我们疗伤，让我们放下烦恼尽情享受旋律的美。做本集《英语小测验》，看看你对和音乐有关词汇的掌握。 1. Musical instruments that are not electric can be described as ______. a) acoustic b) amplified c) accented...

21-04-07 人体内有一个独特的生物钟，来适应地球的昼夜变换。它在一天之中的不同时段，对我们的生理功能进行着非常精准的调节，这个生物钟到底是如何工作的？2017年诺贝尔生物学奖获得者们通过分离基因，为我们揭示了到底是什么样的机制使得细胞内的生物钟持续工作。 We spend a...

16-04-05 In the first large randomized trial to directly compare two approaches to preventing a type of abnormal heart rhythm that is the most common complication of heart surgery, the two strategies--controlling heart rate and controlling heart rhythm--perfo...

15-06-13 Often referred to as the body clock, circadian rhythm controls what time of day people are most alert, hungry, tired or physically primed due to a complex biological process that is not unique to humans. Circadian rhythms, which oscillate over a rou...

14-09-25 Eyeless Mexican cavefish show no metabolic circadian rhythm in either light and dark or constant dark conditions, according to a study published September 24, 2014 in the open-access journal PLOS ONE by Damian Moran from Lund University, Sweden, and...

13-08-29 When a beating heart slips into an irregular, life-threatening rhythm, the treatment is well known: deliver a burst of electric current from a pacemaker or defibrillator（去纤颤器） . But because the electricity itself can cause pain, tissue damage...

12-09-28 Soul music is a style of pop music developed by African-Americans combining elements of gospel（福音的） music and rhythm and blues. The term was first used in the 1960s to describe a combination of rhythm and blues, gospel, jazz, and rock music. Ch...

11-01-31 Australian researchers have come one step closer to understanding how the rhythm of the heartbeat is controlled and why many common drugs, including some antibiotics, antihistamines and anti-psychotics, can cause a potentially fatal abnormal heart r...