The gorgeous fireworks
绚烂无比的烟花
主题：人与自我/安全防范
难度星级：★★★☆☆
用时：/9分钟
KEY→D24
The first fireworks were made in China, around 2000 years ago. They were only orange and white.
Later, people in Italy added different salts and made new colours. The hardest colour to make is blue.
Boom! Crackle! Hiss! Many fireworks come with sounds. Aluminium flakes（铝片）make the “hisses”. Titanium powder（钛粉）makes the big, loud “booms”.
Fireworks are not fun for animals. Usually, people keep dogs and cats inside the house when there’s a fireworks show.
Workers should wear cotton clothes when they make fireworks. This is because static electricity might set off the fireworks.
You should soak used fireworks in water for over 24 hours before you throw them away.

词汇积累
boom /buːm/ n. 隆隆声
hiss /hɪs/ n. 嘶嘶声
crackle /ˈkrækl/ n. (一连串的)噼啪声
soak /səʊk/ v. 浸泡；浸湿
Read and choose. 根据文章内容，选择最佳答案。
（）1. The first fireworks were made in .
A. China B. Japan C. Italy
（）2. Around 2000 years ago, the fireworks were only and .
A. red; blue B. orange; red C. orange; white
（）3. Which is the hardest colour to make?
A. Red. B. Blue. C. Orange.
（）4. make(s) the big, loud “booms”.
A. Aluminium flakes B. Electricity C. Titanium powder
（）5. Which of the following is right?
A. You should soak fireworks in water before you set them off.
B. You should wear cotton clothes when you make fireworks.
C. Fireworks are fun for your pets.

1. A 2. C 3. B 4. C 5. B