A
If you have your own Acme Rocket Launcher, you can create rockets that show off (展示) yourself.
All you need is your Acme Rocket Launcher and a few simple household tools: a 500 ml plastic cola bottle, scissors, coloured paper, a board and glue.
What to do
Step 1: Clean the cola bottle from outside to inside and make it dry.
Step 2: Use coloured paper to draw one large and three small triangles(三角形) on the board. Cut out the triangles.
Step 3: Roll(卷起) the large triangle so that two of its sides touch and it forms a rocket's nose cone(前锥体). Glue the sides of the cone so that it holds its shape.
Step 4: Glue the only nose cone to the bottom of the bottle to be the top of the rocket.
Step 5: Glue the smaller triangles to the other end of the cola bottle, around its opening. The triangles will be the tail fins(尾翼).
Follow the instructions with your Acme Rocket Launcher and have a blast(爆炸).
(
) 1. How many triangles will be cut out for making the rocket?
A. One. B. Two. C. Three. D. Four.
(
) 2. What can you get from Step 4?
(
) 3. In which section of a newspaper would you probably read the text?
A. DIY science. B. Music world.
C. Story world. D. Sports news.
解析：
1. 细节理解题：根据Step 2的内容“Use coloured paper to draw one large and three small triangles(三角形) on the board. Cut out the triangles.”，可知要剪出1个大三角形和3个小三角形，总计4个三角形。
2. 细节理解题：Step 4的操作是把做好的火箭前锥体粘在可乐瓶的底部，作为火箭的顶部，对应图示C的成品形态：A是剪好的所有三角形、B是单独的前锥体、D是未做任何粘贴处理的瓶子，均不符合Step 4完成后的状态。
3. 推理判断题：本文是介绍用日常家用材料自制火箭的手工操作指南，属于DIY手工科学类内容，最可能出现在报纸的DIY科学板块，和音乐、故事、体育板块无关。
