【解析】

此题为听力题，解析略。

【17题详解】

此题为听力题，解析略。

【18题详解】

此题为听力题，解析略。

【19题详解】

此题为听力题，解析略。

【20题详解】

此题为听力题，解析略。

第二部分 阅读理解（共两节，满分40分）

第一节（共15小题；每小题2分，满分30分）

阅读下列短文，从每题所给的四个选项（A、B、 C和D）中，选出最佳选项，并在答题卡上将该选项涂黑。

　　After I mastered my first concerto (协奏曲) at the age of 14, my parents decided to get me a nice violin. I tried out dozens of instruments before I found my match: a German violin. It was beautiful, but what I liked best about it was its voice. Confident and strong, it was everything I longed to be.

　　I'm not sure how much that violin cost, but my parents made me promise never to let it out of my sight. They didn't understand that pulling a large violin case ran counter to my daily middle school task of not being noticed. I was a strange, absent-minded kid. When I spoke up in class, my comments brought confused silence from teachers and wild laughter from students. Like a deer in a wolf pack, I tried to be quiet and still.

　　However, my new violin was almost shockingly loud. Together, we were much louder than the rest of my middle school orchestra - which was encouraged, since the other kids made sounds like cats' crying. For one wonderful hour every day, I was showered with attention. Everyone wanted to hear what I had to say.

Between classes, I bent under the combined weight of my violin case and a backpack