Ⅴ. 阅读理解
新语篇 操作指南 Water Fireworks
What you need:
water, oil, food coloring(食用色素)(any color of your choosing), two clear glasses, a fork
What to do:
Step 1: Fill a glass almost to the top with room-temperature water.
Step 2: Pour 2 tablespoons of oil into the other glass.
Step 3: Add 2 drops of food coloring to the glass with oil.
Step 4: Stir(搅动) to mix the oil and the food coloring by using a fork. Stop once you break the food coloring into smaller drops.
Step 5: Pour the oil and the food coloring mixture into the glass with water.
Step 6: Now watch! The food coloring will slowly go down in the water, with each droplet expanding(扩散) outwards as it falls. It looks like fireworks.
• Mix egg yolks(蛋黄) and sugar to make yolk liquid.
• Mix light cream and milk with the yolk liquid.
• Put the liquid in cups, cover the cups with tin foil(锡纸), and put them into the oven at a temperature of 160℃.
• Take the cups out of the oven and cool them down in the fridge.
• Put some sugar on them, and then heat them until the sugar turns brown.
Time: 4:00 p.m.—4:30 p.m. on Monday
Place: The dining hall Teacher: Miss Zhou
How it works:
Food coloring dissolves(溶解) in water, but not in oil. So when you pour the mixture of food coloring and oil into the water, the oil will stay at the top of the water because it is less dense(密集的), and the food coloring will begin to dissolve once they go down through the oil and into the water.
1. How many kinds of materials do we need for this experiment?
A. Four. B. Five. C. Six. D. Seven.
2. 思维品质 逻辑思维 If we , the effect of the final experiment will be affected.
A. fill the first glass with icy water
B. use purple food coloring to drop in the glass
C. use a fork to mix the oil and the food coloring
D. add 2 drops of food coloring to the glass with oil
3. Which shows the RIGHT order of the experiment?

A. ④②①③⑤ B. ①⑤④③②
C. ④②①⑤③ D. ④⑤②①③
4. According to the experiment, the water fireworks are the result of .
A. oil dissolving in water
B. oil staying at the top of water
C. food coloring mixing with oil
D. food coloring dissolving in water
5. In which magazine can you read this text?
A. Science in Life. B. School Life.
C. Chemistry and Food. D. Food and Health.

Ⅴ. 1.B 2.A 3.C 4.D 5.A
【语篇解读】本文是一篇说明文,介绍了“水中烟花”科学实验的步骤、原理及所需材料,展示了油和水的密度差异及色素溶解性的科学现象。
1. B 解析:细节理解题。根据“What you need”部分列出:water, oil, food coloring, two clear glasses, a fork,共五种材料。故选 B。
2. A 解析:推理判断题。根据最后一段“Food coloring dissolves in water, but not in oil.”及实验要求“Fill a glass almost to the top with room-temperature water.”可知,使用冰水会影响色素溶解效果。故选 A。
3. C 解析:事件排序题。根据实验步骤顺序:①倒水→②倒油→③滴色素→④搅拌→⑤倒入油和色素混合物。对应顺序为④②①⑤③。故选 C。
4. D 解析:细节理解题。根据最后一段“the food coloring will begin to dissolve once they go down through the oil and into the water”及现象描述“the food coloring will slowly go down in the water, with each droplet expanding outwards as it falls.”可知,水中烟花是色素在水中溶解的结果。故选 D。
5. A 解析:推理判断题。本文介绍的科学实验涉及物理和化学原理,最可能出现在《生活中的科学》这类杂志中。故选 A。

【分析】
1. 第1题需定位材料清单统计种类，直接查找即可；第2题结合实验原理和要求，分析选项对实验的影响；第3题需匹配插图与实验步骤的顺序；第4题定位实验原理部分，查找现象成因；第5题根据文章内容判断适合的杂志类型。
【解析】
1. 第1题：根据“What you need”部分，所需材料为water、oil、food coloring、two clear glasses、a fork，共5种，故选B。
2. 第2题：实验要求使用室温的水，若用冰水会影响色素在水中的溶解效果，导致实验现象不明显，其他选项均不影响，故选A。
3. 第3题：实验步骤依次为：倒水（图④）→倒油（图②）→滴色素（图①）→搅拌（图⑤）→倒入混合物（图③），正确顺序为④②①⑤③，故选C。
4. 第4题：根据最后一段，色素溶于水，进入水中后扩散形成“水中烟花”，故选D。
5. 第5题：文章介绍生活中的科学小实验，适合《生活中的科学》杂志，故选A。
【答案】
Ⅴ. 1.B 2.A 3.C 4.D 5.A
【知识点】
英语阅读理解、细节理解、推理判断
【点评】
本题为英语阅读理解题，围绕“水中烟花”科学实验展开，考查细节查找、逻辑推理、事件排序及主旨判断能力，结合生活中的科学现象，兼具趣味性与知识性，能引导学生关注生活中的科学。
【难度系数】
0.5