Why Exercise is Good for You
When you exercise, your body works like a super machine! First, your heart beats faster. This makes your heart ( 1 ) (strong). A strong heart pumps blood ( 2 ) (good) to every part of your body. Blood carries oxygen, which gives your muscles ( 3 ) (many/ much) energy.
Exercise also helps your bones. When you run or jump, your bones stay ( 4 ) (strong) and healthy. Scientists say children who exercise often grow ( 5 ) (healthy) because their bodies develop well.
Do you know exercise is good for your brain too? It helps you think ( 6 ) (clear) and remember things ( 7 ) (easy). After exercise, you may feel tired, but you will sleep ( 8 ) (deep). This helps your body and mind rest well.
Remember: Exercise 30 minutes a day keeps the doctor away!
Word bank
beat 跳动 pump 泵出 blood 血液 oxygen 氧气
muscle 肌肉 bone 骨头 brain 大脑
① 用括号中所给词的正确形式填空。
② 卡路里计算：

Emma jumps rope for 15 minutes. How many calories does she burn( 燃烧 )?

③ (※选做)仿照短文的最后一句话, 设计一条英文运动口号。

1.(1) stronger (2) well (3) more (4) strong (5) healthier (6) clearly (7) easily (8) deeply
2. Emma burns 150 calories.
3. 略。