新托福 考试写作考生想拿高分，“肚子里必须有点墨水”，背上一篇两篇优秀范文，以备不时只需。以下这篇范文的题目是：Piano 。
The ancestry of the piano can be traced to the early keyboard instruments of the fifteenth and sixteenth centuries --- the spinet， the dulcimer， and the virginal. In the seventeenth century the organ， the clavichord， and the harpsichord became the chief instruments of the keyboard group， a supremacy they maintained until the piano supplanted them at the end of the eighteenth century. The clavichord”s tone was metallic and never powerfu
