B. 阅读对话，回答下列问题。
This picture shows beautiful ice lanterns. They were made of clear natural ice and colorful lights inside. People usually make and enjoy them in cold winter.
Amy: Mr. Zhang, how do you build Ice and Snow World?

Mr. Zhang: First, we cut huge ice blocks from the Songhua River. They are transported(运输) here by truck.
Amy: Are the ice blocks heavy?
Mr. Zhang: Yes! Each can weigh over 500kg. Then, artists draw designs(设计图) and carve with special tools.
Amy: What tools do you use?
Mr. Zhang: Like chisels(凿子), electric saws(电锯), and even hot irons to smooth(使光滑) the ice.
Amy: How do you make colors at night?
Mr. Zhang: We put colorful LED lights inside the ice. When the lights are turned on, the whole world glows(发光) magically!
Amy: Is it hard to work in such cold weather?
Mr. Zhang: Yes, but we wear special warm suits. The most important thing is our passion(热情) for art!
Amy: It's really amazing work.
Mr. Zhang: Welcome to see it next winter!
1. Where do the ice blocks come from?

2. What tools are used to carve the ice?

3. How do the ice sculptures light up at night?

4. What do workers wear in such cold condition?

5. What is the most important thing for the artists?

1. They come from the Songhua River.
2. They use chisels, electric saws and even hot irons to smooth the ice.
3. Workers put colorful LED lights inside the ice, and the ice sculptures will glow when the lights are turned on.
4. They wear special warm suits.
5. Their passion for art.

本题为阅读理解细节问答题，可直接在对话原文中定位对应问题的相关内容，提取信息作答：
1. 从Mr. Zhang的第一句介绍可直接找到冰块的来源；
2. 定位Amy询问雕刻使用什么工具的对应对话片段，可提取到相关工具信息；
3. 定位Amy询问夜间如何呈现色彩的对话部分，可得到冰雕夜间发光的方式；
4. 定位Amy询问寒冷天气工作相关的对话内容，可找到工作人员的御寒穿着；
5. 定位对话末尾Mr. Zhang的表述，可得到对艺术家来说最重要的事物。