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When Pyrex(公司名) cookware first came out, it was advertised as the ice box to oven, because itwas made of borosilicate glass which could weather large temperature changes without undergoing thermo-shock and shattering. But today, American’s Pyrex and Anchor Hocking(公司名) dishesare made of soda² lime silicate¹ glass, which is more prone³ to shatter. So, saysthe report of the bulletin of American ceramic⁴ society. Researchers have calculated that rapid temperature change, if just hundred degrees Fahrenheit⁵ could fracture the new glass compared to 330 degrees to for the old stuff. They saythat means that is possible to break glass measuring cup with boiling water orto explode a cool casserole dish by sliding it into a hot oven. Manufacturer says they temper(冶炼中专指通过锻炼增强材料性能) the new glass to make it stronger and researches did find some evidence for that. But they believe the heat treat is inadequate⁶, because in lab test cookware exploded into large glass sharps rather than tiny pieces as tempered auto-glassdoes. As the saying goes, if you can’t stand of the heat stay out of thekitchen. If this research is accurate that heat is on this cookware.

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1 silicate
n.硅酸盐
参考例句：
There are large amounts of aluminum silicate in the area.这个地区有大量的硅酸铝。 Silicate minerals are characteristically refractory and difficult to break down.硅酸盐矿物的特点是耐熔和难以分离。

2 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。

3 prone
adj.(to)易于…的，很可能…的；俯卧的
参考例句：
Some people are prone to jump to hasty conclusions.有些人往往作出轻率的结论。 He is prone to lose his temper when people disagree with him.人家一不同意他的意见,他就发脾气。

4 ceramic
n.制陶业，陶器，陶瓷工艺
参考例句：
The order for ceramic tiles has been booked in.瓷砖的订单已登记下来了。 Some ceramic works of art are shown in this exhibition.这次展览会上展出了一些陶瓷艺术品。

5 Fahrenheit
n./adj.华氏温度；华氏温度计(的)
参考例句：
He was asked for the boiling point of water in Fahrenheit.他被问到水的沸点是华氏多少度。 The thermometer reads 80 degrees Fahrenheit.寒暑表指出华氏80度。

6 inadequate
adj.(for,to)不充足的，不适当的
参考例句：
The supply is inadequate to meet the demand.供不应求。 She was inadequate to the demands that were made on her.她还无力满足对她提出的各项要求。