【答案解析】[参考范文]

As the saying goes, practice makes perfect. Whatever you do, you are certain to aim at perfection. But perfection lies in practice. Without practice, you can never expect to be really good at anything. On the contrary, the more you practice, the more likely you are to have things perfectly done.
The study of English is a case in point. If you are to improve your pronunciation, you must practice every sound again and again. If you want to write an excellent composition, you have to practice writing.
Another example is Deng Yaping, the world No. 1 woman Ping-Pong player. This short girl, who does not seem to be cut out for sports for her physical size, owes her success to painstaking and prolonged practice. Practice, so to speak, can even make a difference between becoming merely good at something and becoming a champion.