I like to play sports.这句不好,改为：I like sports.
Always play sports is good for your body.语法错误,改为：Always playing sports is good for your body.
About once a week.不成一句,可以联上一句末尾合为一句.
Olympic Games is near.语法错误,应改为 Olympic Games is coming.
最后的诗不错,但是前面的英文有些Chinglish了.