【英语时差8,16】汽水的科学（上）

 While it might be socially acceptable for food lovers to discuss the care of the finest wines, or the best way to brew¹ gourmet² coffee, what if your favorite beverage³ happens to be soda⁴ pop? Chances are a gourmet wouldn’t have a lot to say about this topic. Well, don’t worry. It’s A Moment of Science to the rescue, as we take a practical approach to the chemistry of fizz. Soda is fizzy because the gas carbon dioxide, or CO2, is dissolved into the sweet, syrupy liquid. Without this carbon dioxide your drink would be flat and unpleasant. Unfortunately, carbon dioxide molecules⁵ have a natural tendency to leave any liquid, popping through the surface and escaping forever as a gas.

1 brew   

v.酿造，调制

参考例句：

• Let's brew up some more tea.咱们沏些茶吧。
• The policeman dispelled the crowd lest they should brew trouble.警察驱散人群，因恐他们酿祸。

2 gourmet   

n.食物品尝家；adj.出于美食家之手的

参考例句：

• What does a gourmet writer do? 美食评论家做什么？
• A gourmet like him always eats in expensive restaurants.像他这样的美食家总是到豪华的餐馆用餐。

3 beverage   

n.(水，酒等之外的)饮料

参考例句：

• The beverage is often colored with caramel.这种饮料常用焦糖染色。
• Beer is a beverage of the remotest time.啤酒是一种最古老的饮料。

4 soda   

n.苏打水；汽水

参考例句：

• She doesn't enjoy drinking chocolate soda.她不喜欢喝巧克力汽水。
• I will freshen your drink with more soda and ice cubes.我给你的饮料重加一些苏打水和冰块。

5 molecules   

分子( molecule的名词复数 )

参考例句：

• The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
• Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里，大分子裂变为小分子。