The lamb eats grass vigorously, Xiaoming swims skillfully, and Kobayashi walks happily and has fun.

For reference! !

What are some good words and sentences about swimming?

Whenever I go swimming in the swimming pool, I can always see those children who learn swimming for the first time under the guidance of their coaches and parents. At that time, I could always see the scene of learning to swim for the first time. What an interesting and unforgettable experience this is! It was a hot summer, and my friends and I went to the swimming pool to learn to swim. I am very excited, because this is my first time to learn swimming. I came to the swimming pool neatly in my bathing suit and swimming cap, armed to the teeth. We first came to the shallow pool to practice swimming. The coach first taught us to hold our breath. I slowly got into the water, took a deep breath, and then put my head into the water, but suddenly I panicked and choked three or four mouthfuls. When I was about to put my head into the water for the second time, the coach said, "Stop breathing, calm down and don't panic." I put my head into the water again and stopped breathing, thinking, "I must be calm and not afraid." This time, I actually succeeded. The coach praised me a few words, and I was elated. The coach also taught us breaststroke. I can finally swim in the water. We ran excitedly to the deep pool with our swimming boards on our backs. A pool of clear water, crystal clear, I took a deep breath, grabbed the handrail and stepped into the water step by step, and my body lost its balance with the fluctuation of the water. I just found that it is ten times more difficult to do actions in water than on shore. It is easy to move on the shore. After entering the water, I feel that there are many things hanging on my legs and I can't swim. It turns out that the feeling of being in the water is not as free and carefree as a fish. After choking, I lost my balance and fell into the water on my back. I was so scared that I thought it was over. The coach carried me ashore and told me, "In breaststroke, you should lie prone on the water, relax your body, let your body lie prone on the water, coordinate your hands and legs, push your legs out hard, and put your fingers together, so that you can swim around the water easily." I got into the water again and thought, "As long as I work hard, I will succeed." Where there is a will, there is a way! "So I followed the coach's instructions and swam forward! I finally feel the joy of success, and my heart is sweeter than eating honey! I can swim freely like a fish in the water now, and I gradually like swimming. I believe that as long as I strengthen my exercise in the future, I will definitely become an excellent swimmer in the future!

Children swim, fill in the right words and make the sentences concrete! Help!

Some children swim happily.

Fill in the correct words.

Aerobic exercise or anaerobic exercise is not simply divided according to sports events, but according to whether the energy of muscle contraction during exercise comes from aerobic metabolism or anaerobic metabolism. Aerobic exercise, also known as aerobic metabolic exercise, refers to physical exercise carried out by the human body under the condition of adequate oxygen supply. The advantages of aerobic exercise are: it can increase oxygen intake and better consume excess calories in the body. That is to say, in the process of exercise, the oxygen inhaled by the human body is equal to the demand, achieving physiological balance. So it is characterized by low intensity, fast pace and long duration. It is required that the exercise time should not be less than 1 hour, and it should be carried out 3 to 5 times a week. Through this kind of exercise, oxygen can fully ferment the sugar in the body, consume the fat in the body, enhance and improve the cardiopulmonary function, prevent osteoporosis, and adjust the psychological and mental state, which is the main exercise mode of fitness. Common aerobic exercises include: walking, jogging, skating, swimming, cycling, playing Tai Ji Chuan, dancing, doing rhythmic exercises, etc. Anaerobic exercise refers to the high-speed and intense exercise of muscles in the state of "hypoxia". Anaerobic exercise is mostly an exercise with high load intensity and strong instantaneity, which is difficult to last and the time for fatigue elimination is slow. The biggest feature of anaerobic exercise is that the oxygen intake during exercise is very low. Because the speed is too fast and the explosive force is too strong, the sugar in the human body cannot be decomposed by oxygen, so we have to rely on "anaerobic energy supply". This kind of exercise makes the body produce too much lactic acid, which leads to muscle fatigue, muscle soreness and shortness of breath after exercise. If you want to make your body stronger, you can go to the gym to take part in anaerobic exercise. However, when exercising, it is best to listen to the guidance of the coach and choose a training plan that suits you. Common anaerobic sports are: running, weightlifting, throwing, high jump, long jump, tug-of-war, muscle strength training and so on.