After learning the basics of tai chi in those first few classes, I found myself bored and aching from doing the same moves over and over again. Luckily, my coach taught me how to relax my muscles and focus on peace of mind while performing the routine. With these requirements of tai chi in mind, I found to my satisfaction that     1     我的平衡性和柔韧性慢慢有所改善, that I was able to do more difficult moves, and that my love for tai chi returned stronger than ever.

In time, I began to look into the ancient Chinese culture behind tai chi. I discovered that     2     tai chi is deeply rooted in the Chinese philosophy of yin and yang, which are believed to form the unity of opposites. Neither can exist independent of the other; for example, there is no shadow without light. The practice of tai chi aims to maintain the balance of yin and yang in the body through opposite movements. Eventually,     3     tai chi brings about a state of physical balance and mental peace.

A year of practising     4     tai chi has had a positive effect on my everyday life. I sleep better at night, and I am more energetic during the day.     5     我感到更快乐和更自信了. Tai chi has taught me to relax my mind, enabling me to stay cool in stressful situations. I am sure I will continue to practise tai chi and enjoy the benefits it has brought me.

Exercise has a range of health benefits. However, some people believe that     1     if some exercise is good, more is always better, so they tend to exercise for a long time without stopping. For example, some people go jogging for several hours at a time because of the step-counting smartphone apps.     2     还有些人周末连续锻炼数个小时 to make up for their lack of exercise during the weekdays. Habits like these put stress on the body, and if maintained over the long term,     3     they can be a serious health risk.

Generally speaking, aerobic routines that last over 100 minutes have a certain health risk. On the other hand,     4     they should not be shorter than 10 minutes. If you do exercise for only a few minutes, you may not be working out long enough to see any benefits from it. When you exercise, aim for the daily average of 30 to 60 minutes.     5     这将会防止你受伤. Moreover, it will ensure that the exercise you do has a positive effect on your physical health.

The day began like any other on Goldshore Beach. People were walking, running or simply sitting on the sandy beach, enjoying the warm sea air     1    and the soft wind that brushed their hair. Sabrina was one of the happy tourists     2    until she noticed something odd. “The water was like the bubbles on the top of a beer.” she later explained. “It wasn’t calm and it wasn’t going in and then out. It was just coming in and in and in.” Sabrina had just learnt about tsunamis in a Geography lesson． 她立刻想到了这一点     3    that these were signs of an approaching tsunami.

Sabrina was frightened，but she soon kept her head.她警告她的父母有危险,     4     though at first they just thought she was joking. However, Sabrina was certain that a terrible disaster was on its way     5    and kept asking her parents to talk to a safety officer, To her great relief, the officer immediately realized the coming danger. The beach was rapidly cleared of people, just before the huge waves crashed into the coast.