四、阅读理解
Nowadays more and more people have discovered the joy of DIY. It can not only turn waste into treasure, but also develop your creativity. Moreover, it can make your boring time more interesting. Here's a simple way to build your own musical instrument with used shoeboxes.
Required items: a shoebox with lid, glue, 4 to 6 rubber bands (橡皮筋), scissors.
Step-by-step instructions:
So next time when you're bored at home after finishing your homework, try making something new with everyday items around you instead of wasting time on short videos or computer games.
（
C
）1. Why is the folded circle glued next to the circular opening?
A. To divide the shoebox into different parts.
B. To cover the hole so the sound will be louder.
C. To create a fret that lifts the rubber bands slightly.
D. To make the shoebox guitar look more like a real one.
（
D
）2. Which is the most suitable word for "
▲
"?
A. longer B. thicker C. softer D. thinner
（
B
）3. The passage mainly shows us
.
A. how to design the fret of a shoebox guitar
B. how to turn a shoebox into a musical instrument
C. why trying DIY is better than spending time on screens
D. why people should learn to use waste materials creatively
解析：
【分析】本题为英语阅读理解题，需先通读全文把握核心内容，再针对每道题定位原文信息，结合细节理解、主旨归纳的解题方法逐一判断选项。第1题需定位步骤③的内容，第2题定位步骤④关于音高与橡皮筋的描述，第3题需梳理全文主旨。
【解析】1. 细节理解题：根据步骤③中“This will serve as a fret, which is the part on a regular guitar that raises the strings slightly above the neck.”可知，粘折叠的圆是为了制作琴格，稍微抬起橡皮筋，对应选项C。
2. 细节理解题：步骤④提到用不同厚度和长度的橡皮筋创造不同音高，结合物理常识，橡皮筋越细（thinner），振动频率越高，音高越高，故填thinner，选D。
3. 主旨大意题：全文围绕用旧鞋盒制作乐器的步骤展开，核心是介绍如何将鞋盒变成乐器，对应选项B。
【答案】1.C 2.D 3.B
【知识点】阅读理解（细节理解、主旨大意）、DIY实践
【点评】本题结合DIY主题，考查学生的细节查找和主旨概括能力，需要学生准确对应原文内容，难度适中。
【难度系数】0.6
